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200 South Ridge Road Hesston, Kansas 67062 BIGDOG ® MOWER CO. ALPHA ® MP Parts Manual

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Page 1: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

200 South Ridge RoadHesston, Kansas

67062

BIGDOG® MOWER CO. ALPHA® MP

Parts Manual

Page 2: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the
Page 3: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 c-1

Table of Contents

General InformationService Literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Options Available From Your Dealer. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Standard Torques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Section 2Frame—42". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2Frame—48"/54"/60"—SN 16040000 & Higher . . . . . . . . . . . . . . . . . . . . 2-4Frame—48"/54"/60"—SN Prior to 16040000 . . . . . . . . . . . . . . . . . . . . . 2-6Fenders & Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8Engine Guard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10Lights—42" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12Lights—48"/54"/60" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Section 3Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Transmission Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4Transmission Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8Steering & Brake—S/N 16025348 & Higher . . . . . . . . . . . . . . . . . . . . . 3-10Steering & Brake—S/N Prior to 16025348 . . . . . . . . . . . . . . . . . . . . . . 3-12Steering Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Section 4Wheel & Tire—42" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2Wheel & Tire—48"/54"/60" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4Front Tire Breakdown—42"/48" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6Front Tire Breakdown—54"/60" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8Drive Wheel Breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Section 5Engine—S/N15021839 & Higher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2Engine—S/N 14092401–15021838 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6Engine—S/N Prior to 14092401 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10Engine Service Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14Fuel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

Section 642" Service Deck—Low Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-242" Deck Pulley & Spindles—Low Cut . . . . . . . . . . . . . . . . . . . . . . . . . . 6-442" Deck—Low Cut. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-648" Service Deck. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-848" Deck Pulleys & Spindles—S/N 15010708 & Higher . . . . . . . . . . . . 6-1048" Deck Pulleys & Spindles—S/N 14074266–15010707 . . . . . . . . . . 6-1248" Deck Pulleys & Spindles—S/N Prior to 14074266 . . . . . . . . . . . . . 6-1448" Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1648" Service Deck—Low Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

Page 4: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

c-2 119297EX_0117

48" Deck Pulleys & Spindles—Low Cut . . . . . . . . . . . . . . . . . . . . . . . . 6-2048" Deck—Low Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2254" Service Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2454" Deck Pulleys & Spindles—S/N 15010708 & Higher. . . . . . . . . . . . 6-2654" Deck Pulleys & Spindles—S/N 14074307–15010707 . . . . . . . . . . 6-2854" Deck Pulleys & Spindles—S/N Prior to 14074307 . . . . . . . . . . . . . 6-3054" Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3254" Service Deck—Low Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3454" Deck Pulleys & Spindles—Low Cut . . . . . . . . . . . . . . . . . . . . . . . . 6-3654" Deck—Low Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3860" Service Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4060" Deck Pulleys & Spindles—S/N 15010708 & Higher. . . . . . . . . . . . 6-4260" Deck Pulleys & Spindles—S/N 14074367–15010707 . . . . . . . . . . 6-4460" Deck Pulleys & Spindles—S/N Prior to 14074367 . . . . . . . . . . . . . 6-4660" Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-48Deck Lift & Mounting Hardware—42". . . . . . . . . . . . . . . . . . . . . . . . . . 6-50Deck Lift & Mounting Hardware—48"/54"/60" . . . . . . . . . . . . . . . . . . . 6-54

Section 7Seat—42" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2Seat—48"/54"/60". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4Seat Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Page 5: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 1-1

General Information

This manual covers BigDog® Alpha® MP Mower models 932921EX, 932939EX, 932947EX, 936393EX, 936518EX & 936526EX.

Service Literature

PART NO.OPERATOR’S MANUALWARRANTY STATEMENTGENERAL SERVICE MANUAL

Options Available From Your Dealer

PART NO.2-BAG CATCHER48" MULCH KIT54" MULCH KIT60" MULCH KITSTEERING EXTENSION KITARMREST KITFLEX FORK KIT (54"/60" MOWERS)FLEX FORK KIT (48" MOWERS)

Note: When ordering parts, you must use the part number as shown for each part, not the index number. Always give the model and serial number to your parts and service representative.

Note: Items sold in bulk such as seals and hoses are sold by the foot.

Using This Manual

This manual is part of a service package for the BigDog® mowers. Use of this manual in conjunction with other Big-Dog® mower and component manuals will provide the information necessary to service and maintain BigDog® mowers.

This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the time of printing, but subsequent production changes may cause your machine to vary slightly in detail. Excel Industries, Inc. reserves the right to redesign and change the machine as deemed necessary, without noti-fication. If a change has been made to your machine which is not reflected in this parts manual, see your authorized dealer for current information and parts.

The Service Manual is a service guide for use by Service Technicians. It provides the necessary information needed to perform normal maintenance requirements on these units.

The Operator's Manual provides fundamental operational information and operational safety that is needed when oper-ating the mower.

The component manuals are furnished by the various manufacturers to be used for the troubleshooting and servicing of their products.

DESCRIPTION605046

119553EX119295

DESCRIPTION933028119101119060119091333724119783605123600213

Page 6: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

1-2 119297EX_0117

Hardware Description Codes & Abbreviations

The following codes are used throughout this parts manual. Refer to this list when ordering parts.

ABBREVIATIONCARRIAGE BOLT MACHINE BUSHINGCLEVIS PIN MACHINE SCREWCLIP NUT NUTCOTTER PIN SELF TAPPING CAP SCREWCAP SCREW SOCKET HEADCUP WASHER SHOULDER BOLTFENDER WASHER SET SCREWFLAT WASHER OUTSIDE DIAMETERHEX HEAD INSIDE DIAMETERLOCK WASHER WELD NUT

Standard Torques

The following chart lists the standard torque values for the threaded fasteners found in this manual. Torque all cap screws, nuts and set screws to these values unless a different torque is shown in the Notes section next to the fastener.

SIZE FT-LBS N•M SIZE FT-LBS N•M

DESCRIPTION ABBREVIATION DESCRIPTIONCB MBCE MSCN NTCP SCCS SHCW SB

FDRW SSFW ODHX IDLW WN

.250 8.2 11.1 M3 1 1.3

.312 17 23 M4 2.2 3

.375 30 40 M5 4.5 6.1

.438 48 65 M6 7.7 10.4

.500 73 99 M8 18.5 25

.562 105 143 M10 37 50

.625 145 200 M12 64 87

.750 260 350 M14 80 108.5

.875 420 565 M16 160 2151.00 625 850 M20 320 435

M24 555 750

Page 7: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 2-1

Section 2

Frame—42" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Frame—48"/54"/60"—SN 16040000 & Higher . . . . . . . . . . . . . . . . . 2-4

Frame—48"/54"/60"—SN Prior to 16040000. . . . . . . . . . . . . . . . . . . 2-6

Fenders & Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Engine Guard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Lights—42" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Lights—48"/54"/60" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Page 8: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

2-2 119297EX_0117

Frame—42"

19

244

1 4

15

26

164

12

10

22

4

4

25

4

23

14

18

5

11

13

12

3

1

2

8

9

3

10

4 4

10

17

4

10

1015

10

12

14

20

10

4

124

4

12

1027

4

10

29

21

3

10

10

17

28

27

28

6

7

27

28

10

Page 9: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 2-3

Frame—42"

INDEX NO. PART NO. QTY.

SEAT SUPPORTSPRING SUPPORTCS .375-16 X .75 HX FLKCS .375-16 X .75 HX FLK PLNRS REAR BRACKETHOT DECALBUMPER DECALBUMPER (WITH DECALS)(S/N 16110000 & HIGHER)BUMPER (WITH DECALS)(S/N PRIOR TO 16110000)ENGINE PLATENT .375-16 HX FLK PLNLS REAR BRACKETCN .250-20 X .15 MAX THKHYDRO BRACKETRS FRAME CHANNEL (WITH DECAL)RS FRONT BRACKETCROSS SUPPORTNT .375-16 HX FLK ZNYCLS FRAME CHANNEL (WITH DECALS)SERIAL NUMBER / SPEC DECALENGINE COMPARTMENT DECALLEVEL FUEL FILL DECALFRONT CROSS FRAMELS FAIRING (WITH DECAL)FOOT PAN (WITH DECAL)RS FAIRINGSAFE OPERATION DECALPUSH BUTTON MOUNTWIRE TIEBATTERY TRAY

NOTES:

1. Serial number decal. In the event the serial number decal becomes damaged or illegible, please contact your dealer to order a replacement.

2. Torque all hardware to a minimum of 33 ft-lbs.

DESCRIPTION

1 118539 12 118538 13 029629 104 604176 305 190207 16 602041 17 605073 18 553643 1

552437 19 552421 1

10 604177 3011 190208 112 601982 513 190209 214 552424 115 190210 216 190189 217 016899 1018 552423 119 N/A 120 601967 121 605782 122 553414 123 553447 124 552422 125 190213 126 601981 127 604307 628 000331 629 190187 1

Page 10: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

2-4 119297EX_0117

Frame—48"/54"/60"—SN 16040000 & Higher

20

234

1

4

15

24

14

4

11

9

21

4

4

28

4

22

14

18

65

10

11

3

1

2

7

3

9

4

9

17

4

9 9

15

912

13

19

9

4

114

411

9

26

4

2726

9

29

16

8

3

9

917

26

27

27

4

9

9

30

3

4

9

25

26

26

12

Page 11: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 2-5

Frame—48"/54"/60"—SN 16040000 & Higher

INDEX NO. PART NO. QTY.

SEAT SUPPORTSPRING SUPPORTCS .375-16 X .75 HX FLKCS .375-16 X .75 HX FLK PLNRS REAR BRACKETHOT DECALBUMPER (WITH DECAL)ENGINE PLATE (WITH DECAL)NT .375-16 HX FLK PLNLS REAR BRACKETCN .250-20 X .15 MAX THKHYDRO BRACKETRS FRAME CHANNELRS FRONT BRACKETCROSS SUPPORTPUMP BELT WARNING DECAL NT .375-16 HX G5 FLKLS FRAME CHANNEL (WITH DECALS)ENGINE COMPARTMENT DECALSERIAL NUMBER / SPEC DECALFRONT CROSS FRAMELS FAIRINGFOOT PAN (WITH DECALS)SAFE OPERATION DECALLEVEL FUEL FILL DECALPUSH BUTTON MOUNTWIRE TIERS FAIRINGBATTERY TRAYBIG DOG DECALWIRE HARNESS (NOT SHOWN)

NOTES:

1. Serial number decal. In the event the serial number decal becomes damaged or illegible, please contact your dealer to order a replacement.

2. Torque all hardware to a minimum of 33 ft-lbs.

DESCRIPTION

1 118539 12 118538 13 029629 104 604176 305 190207 16 602041 17 553643 18 552421 19 604177 30

10 190208 111 601982 512 190209 213 552424 114 190210 215 190189 216 600899 117 016899 1018 552423 119 601967 120 N/A 121 190211 122 553447 123 552422 124 601981 125 605782 126 604307 627 000331 628 190213 129 190187 130 605073 131 604876 1

Page 12: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

2-6 119297EX_0117

Frame—48"/54"/60"—SN Prior to 16040000

20

234

1

4

15

24

14

4

11

9

21

4

4

28

4

22

14

18

65

10

11

3

1

2

7

3

9

4

9

17

4

9 9

15

912

13

19

9

4

114

411

9

26

4

2726

9

29

16

8

3

9

917

26

27

27

4

9

9

30

3

4

9

25

26

26

12

Page 13: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 2-7

Frame—48"/54"/60"—SN Prior to 16040000

INDEX NO. PART NO. QTY.

SEAT SUPPORTSPRING SUPPORTCS .375-16 X .75 HX FLKCS .375-16 X .75 HX FLK PLNRS REAR BRACKETHOT DECALBUMPER (WITH DECAL)ENGINE PLATE (WITH DECAL)NT .375-16 HX FLK PLNLS REAR BRACKETCN .250-20 X .15 MAX THKHYDRO BRACKETRS FRAME CHANNELRS FRONT BRACKETCROSS SUPPORTPUMP BELT WARNING DECALNT .375-16 HX G5 FLKLS FRAME CHANNEL (WITH DECALS)ENGINE COMPARTMENT DECALSERIAL NUMBER / SPEC DECALFRONT CROSS FRAMELS FAIRINGFOOT PAN (WITH DECALS)SAFE OPERATION DECALLEVEL FUEL FILL DECALPUSH BUTTON MOUNTWIRE TIERS FAIRINGBATTERY TRAYBIG DOG DECALWIRE HARNESS (NOT SHOWN)

NOTES:

1. Serial number decal. In the event the serial number decal becomes damaged or illegible, please contact your dealer to order a replacement.

2. Torque all hardware to a minimum of 33 ft-lbs.

DESCRIPTION

1 118539 12 118538 13 029629 104 604176 305 190207 16 602041 17 552437 18 552421 19 604177 30

10 190208 111 601982 512 190209 213 552424 114 190210 215 190189 216 600899 117 016899 1018 552423 119 601967 120 N/A 121 190211 122 190212 123 552422 124 601981 125 605782 126 604307 627 000331 628 190213 129 190187 130 605073 131 604876 1

Page 14: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

2-8 119297EX_0117

Fenders & Instrument Panel

1

8

95

42

6

7

12

13

13

14

10

11

15

18

17

19

20

5

13

13

16

23

2224

3

Page 15: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 2-9

Fenders & Instrument Panel

INDEX NO. PART NO. QTY.

CHOKE CABLEPTO SWITCHHOUR METERKEY ASSEMBLYIGNITION SWITCHINSTRUMENT PANEL (WITH DECAL)INSTRUMENT PANEL DECALCS .250-20 X .500 HX G5CB 10-24 X .500 ZYNCTHROTTLE CABLEFW .219 X .500 X .048 ZNYCNT #10-24 HX NL ZNCS .250-20 X .75 HX FLGCN .250-20 X .15 MAX THKRS FENDERLS FENDERBIGDOG DECALFOOTRESTCS .375-16 X .75 HX FLKNT .375-16 HX FLK G5WIRE TIE (NOT SHOWN)WIRE HARNESSCLUTCH CONNECTOR REPAIR KITSEALED RELAY (WITH BRACKET)

NOTES:

DESCRIPTION

1 601097 12 776476 13 769166 14 605808 15 045898 16 552300 17 604889 18 055947 19 601098 2

10 601096 111 704932 212 059832 213 604324 814 601982 115 605083 116 605082 117 605072 118 190169 119 029629 220 016899 221 000331 222 604876 123 114052 124 601053 2

Page 16: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

2-10 119297EX_0117

Engine Guard

1

23

5

6

5

4

INDEX NO. PART NO. QTY

ENGINE GUARD SCREENENGINE GUARD (S/N 16050000 & HIGHER)ENGINE GUARD KIT (S/N PRIOR TO 16050000)NT .312-18 HX FLKNT .375-16 HX G5 FLKCB .312-18 X .75 FUL ZNCS .375-16 X .75 HX FLK

NOTES:

DESCRIPTION

1 119236 12 190327 1

119603 13 016832 64 016899 45 016253 66 029629 4

Page 17: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 2-11

This page intentionally left blank.

Page 18: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

2-12 119297EX_0117

Lights—42"

1

1

2

3

4

32

5

5

6

7

6

SHOWN FROM THE BOTTOM

1

1

Page 19: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 2-13

Lights—42"

INDEX NO. PART NO. QTY.

ANGLE, LIGHT NT #8-32 HX NL ZNCS #8-32 X .500 PH TRXLIGHTWIRE TIEPUSH BUTTON MOUNTLIGHT WIRE HARNESS

NOTES:

1. Part of the Fenders & Instrument Panel Assembly.

DESCRIPTION

1 190246 12 605208 43 605209 44 605003 25 000331 56 604307 37 605010 1

Page 20: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

2-14 119297EX_0117

Lights—48"/54"/60"

1

1

34

3

5

6

7

8

2

5

6

Page 21: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 2-15

Lights—48"/54"/60"

INDEX NO. PART NO. QTY.

LIGHT ANGLECS #8-32 X .500 PH TRXNT #8-32 HX NL ZNLIGHTPUSH BUTTON MOUNTWIRE TIECS .375-16 X .75 HX FLKNT .375-16 FLK G5LIGHT WIRE HARNESS (NOT SHOWN)

NOTES:

1. Part of the Fenders & Instrument Panel Assembly.

DESCRIPTION

1 190174 12 605209 43 605208 44 605003 25 604307 36 000331 57 029629 28 016899 29 605010 1

Page 22: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

2-16 119297EX_0117

Battery

12

7

5

6

6

3

5 4

BATTERY

6

POSITIVE BATTERYCABLE

7

6

NEGATIVE BATTERYCABLE

9

Page 23: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 2-17

Battery

INDEX NO. PART NO. QTY.

TIE DOWN STRAPCS .250-20 X 7.50 HX G5FW .281 X .625 X .066RED BATTERY CABLE BOOTNT .250-20 HX G5LW .250 INT-EXT TOOTH ZCS .250-20 X .75 HX G5WIRE TIE (NOT SHOWN)CN .250-20 X .15 MAX THK

NOTES:

1. When performing service on the mower, disconnect the negative battery cable and do not reconnect it to the battery until ready to start the engine.

DESCRIPTION

1 604178 12 604465 23 768515 24 771428 15 024927 26 029868 47 055939 28 000331 29 601982 2

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2-18 119297EX_0117

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119297EX_0117 3-1

Section 3

Hydraulic System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Transmission Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Transmission Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Steering & Brake—S/N 16025348 & Higher . . . . . . . . . . . . . . . . . . 3-10

Steering & Brake—S/N Prior to 16025348 . . . . . . . . . . . . . . . . . . . 3-12

Steering Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

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3-2 119297EX_0117

Hydraulic System

1

3

1

2

3

5

6

7

8

9

10

11

1214

11

1316

17

16

17

18

19 1

15

4

4

9

19

181

18

19 1

18

18

18

18

18

21

204

Page 27: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 3-3

Hydraulic System

INDEX NO. PART NO. QTY.

CS .312-18 X 2.50 HX G5CB .375-16 X 2.75 STD ZNCS .312-18 X 3.00 HX G5 ZNT .375-16 HX FLK G5DRIVE BELTIDLER SPACERIDLER ARMFW .406 X 1.25 X .12 HRD ZNT .375-16 HX NL G5CS .375-16 X 1.50 HX G5FW .379 X .813 X .063PULLEY 2.0" IDLERNT .375-16 HX G5 ZNYSPRINGCS .375-16 X 2.5 FULTHHP .080D X 1.19TOW VALVE LINKFW .343 X .687 X .051/.080HNT .312-18 NL G5CS .375-16 X .75 HX FLKTRANSMISSION ASSEMBLY

NOTES:

1. Torque to 17 ft-lbs.

DESCRIPTION

1 710087 42 601887 13 043067 44 016899 35 603907 16 604714 17 116287 18 712893 19 086660 2

10 080655 111 767954 212 604491 113 054502 114 604490 115 604487 116 706549 217 118310 218 768523 1619 058776 820 029629 121 N/A 1

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3-4 119297EX_0117

Transmission Assembly

9

16

15

7

9

14

98

8

4

2

1 2

3

5

FRONT OFMOWER

9

2

1010

10

12

17

19

18

BRAKEARM

6

6

11

LEFT SIDE SHOWNRIGHT SIDE SIMILAR

13

BRAKECLIP

1

B

A

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119297EX_0117 3-5

Transmission Assembly

INDEX NO. PART NO. QTY.

NT .312-18 HX G5 ZY NLFW .343 X .687 X .051/.080HOVERTRAVEL SPRINGSPRINGROD BRAKE ACTUATORFITTING, 90 - 9/16 SAELS TRANSMISSIONCS .375-16 X 3.50 HX G5 ZFW .406 X 1.00 X .12 HRD ZSPRING CLAMPHOSE 19"HOSE 28" WIRE TIENT .375-16 HX G5 NLCROSS BRACE (KIT)RS TRANSMISSIONCS .250-20 X .75 HX G5LS BRAKE SPRING LINKNT .250-20 HX FL LK ZNYRS BRAKE SPRING LINK (NOT SHOWN)

NOTES:

1. Torque to 30 ft-lbs.

DESCRIPTION

1 058776 22 768523 63 601051 24 601131 25 604667 26 601219 27 604709 18 005108 29 712919 4

10 601001 411 787713 19"12 787713 28"13 000331 214 086660 215 123292 116 604708 117 055939 218 109203 119 016816 220 109202 1

HOSE LENGTHS

19" RIGHT TRANSMISSION TO OVERFLOW TANK

28" LEFT TRANSMISSION TO OVERFLOW TANK

A

B

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3-6 119297EX_0117

Transmission Assembly

2321 22

24

25

22

26

LS TRANSMISSION

RS TRANSMISSION

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119297EX_0117 3-7

Transmission Assembly

INDEX NO. PART NO. QTY

NT .250-20 HX ZY NLFW .281 X .625 X .066EXPANSION TANK MOUNTOVERFLOW TANKCS .250-20 X .75 HX G5OVERFLOW TANK CAP

NOTES:

DESCRIPTION

21 068551 222 768515 423 118284 124 601996 125 055939 226 600767 1

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3-8 119297EX_0117

Transmission Service Parts

8

7

65

3

1

2

4

RIGHT SIDE SHOWNLEFT SIDE SIMILAR

604708 RIGHT SIDE TRANSMISSION

INDEX NO. PART NO. QTY.

HG RTN CWHG RTN SPRINGFAN/PULLEY KITLS FILTER GUARD (WITH HARDWARE)OIL FILTER4 BOLT HUB KIT (WITH HUB NUT)BRAKE ARMRETAINING CLIP

604709 LEFT SIDE TRANSMISSION

INDEX NO. PART NO. QTY.

HG RTN CCWHG RTN SPRINGFAN/PULLEY KITRS FILTER GUARD (WITH HARDWARE)OIL FILTER4 BOLT HUB KIT (WITH HUB NUT)BRAKE ARMRETAINING CLIP

DESCRIPTION

1 604901 12 604903 13 602094 14 600975 15 600976 16 600970 17 601221 18 600972 1

DESCRIPTION

1 604902 12 604903 13 602094 14 600974 15 600976 16 600970 17 601221 18 600972 1

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119297EX_0117 3-9

This page intentionally left blank.

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3-10 119297EX_0117

Steering & Brake—S/N 16025348 & Higher

LEFT SIDE SHOWNRIGHT SIDE SIMILAR

11

14

13

1

12

16

3

32

3

4

6 7FRONT OF MOWER

5

1

17

15

12

9

8

18

FRONT OF MOWER15

12

2

10 2

2

Page 35: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 3-11

Steering & Brake—S/N 16025348 & Higher

INDEX NO. PART NO. QTY.

DAMPERBALL STUDFW .343 X .687 X .051/.080HNT .312-18 HX G5 ZY NLCN .312-18 X .20 MAX THKSB .312 X .75 SH .250-20STEERING ROD ASSEMBLYFW .281 X .625 X .066NT .250-20 HX ZY NLNT .312-24 HX G5 NLSTEERING HANDLE (WITH GRIP)STEERING HANDLE GRIPCS .375-16 X .75 HX FLKFW .379 X .813 X .063CS .375-16 X 1.00 HX G5NT .375-16 HX G5 FLKNT .312-18 HX G5CLIPSTEERING ASSEMBLYYOKE, 5/16-24NT .312-24 HX ZNYCSTEERING RODSTEERING BUSHING

NOTES:

1. Part of the Transmission Assembly.2. Torque to 14 ft-lbs.

DESCRIPTION

1 603983 22 781922 43 768523 64 058776 25 601069 26 772483 27 606273 28 768515 29 068551 2

10 023655 211 110370 2

781260 112 029629 713 767954 414 036244 415 016899 716 034272 217 603332 218 N/A 119 604173 220 041152 621 604666 222 116144 2

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3-12 119297EX_0117

Steering & Brake—S/N Prior to 16025348

LEFT SIDE SHOWNRIGHT SIDE SIMILAR

21

16

18

3

32

3

4

67

89

FRONT OF MOWER

51

198

20

9

17

11

10

8

FRONT OF MOWER17

16

15

14

16

14

13 21

12

Page 37: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 3-13

Steering & Brake—S/N Prior to 16025348

INDEX NO. PART NO. QTY.

DAMPERBALL STUDFW .343 X .687 X .051/.080HNT .312-18 HX G5 ZY NLCN .312-18 X .20 MAX THKSB .312 X .75 SH .250-20YOKE, 5/16-24NT .312-24 HX ZNYCSTEERING RODFW .281 X .625 X .066NT .250-20 HX ZY NLSTEERING HANDLE (WITH GRIP)STEERING HANDLE GRIPNT .375-16 HX G5 ZNYFW .379 X .813 X .063CS .375-16 X 1.50 HX G5CS .375-16 X .75 HX FLKNT .375-16 FLK G5NT .312-18 HX G5STEERING BUSHINGCLIPSTEERING ASSEMBLY

NOTES:

1. Part of the Transmission Assembly.

DESCRIPTION

1 603983 22 781922 43 768523 64 058776 25 601069 26 772483 27 604173 28 041152 69 604666 2

10 768515 211 068551 212 110370 2

781260 113 054502 414 767954 815 080655 416 029629 717 016899 718 034272 219 116144 220 603332 221 N/A 1

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3-14 119297EX_0117

Steering Assembly

8

11

14

1

2

3

916

12

8

19

11

15

1112

14

13

1

2

3

5

2

20

17

9

17 12

12

18

18

11

13

11

16

11

4

7

2

10

6

4

11

5

67

11

14

14

Page 39: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 3-15

Steering Assembly

INDEX NO. PART NO. QTY.

CS .250-20 X 2.00 HX FLTHDFW .281 X .625 X .066DRIVE STRAIGHT STOPCS .250-20 X .75 HX G5NUT PLATE .420 CENTERSPUSH BUTTON SWITCHNT .375-16 HX ZY NLCS .500-13 X 4.25 HX G5STEERING SPACERLS STEERING BOX (S/N 16025348 & HIGHER)LS STEERING BOX (S/N PRIOR TO 16025348)FW .343 X .687 X .051/.080HNT .312-18 HX ZY NLBRAKE RODBUSHINGLS BRAKE BELLCRANKNT .500-13 NL G5CS 10-24 X .75 HX FLK ZNCS .375-16 X 3.50 HX G5 ZRS STEERING BOX (S/N 16025348 & HIGHER)RS STEERING BOX (S/N PRIOR TO 16025348)RS BRAKE BELLCRANK

NOTES:

DESCRIPTION

1 604452 22 768515 43 605529 24 055939 25 601822 26 781211 27 086660 38 781708 29 604288 210 606106 1

604300 111 768523 812 058776 413 604179 214 765339 415 116142 116 781567 217 063198 418 005108 219 606105 1

604299 120 116141 1

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3-16 119297EX_0117

Steering Assembly

32

32

24

22

23

30

27

29

21

28

7

2226

25

31

Page 41: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 3-17

Steering Assembly

INDEX NO. PART NO. QTY.

TRANSPORT LATCHFW .379 X .813 X .063CS .375-16 X .75 HX FLKINDICATORDECK HEIGHT DECALCS .375-16 X 2.25 HX G5NT .375-16 HX FLK G5RS STEERING DECALID DECALLS STEERING DECALSTEERING COVER (WITH DECALS)BUSHING

NOTES:

DESCRIPTION

21 605149 122 767954 223 029629 124 118011 125 604819 126 056036 127 016899 128 785220 129 605075 130 785139 131 552458 132 781153 4

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3-18 119297EX_0117

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119297EX_0117 4-1

Section 4

Wheel & Tire—42" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Wheel & Tire—48"/54"/60". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Front Tire Breakdown—42"/48" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Front Tire Breakdown—54"/60" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Drive Wheel Breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

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4-2 119297EX_0117

Wheel & Tire—42"

1

1

27

4

5

3

6

9

6 8

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119297EX_0117 4-3

Wheel & Tire—42"

INDEX NO. PART NO. QTY.

TIRE/WHEEL ASSEMBLY 20 X 8-10WHEEL NUTCS .500-13 X 1.25 HX G5FW .510 X 2.15 X .187 SPLFW .531 X 1.375 X .125BEARINGSPACERGAUGE WHEEL SPACER 1/4"FRONT TIRE SUB-ASSEMBLY

NOTES:

1. Torque to 65–75 ft-lbs.

DESCRIPTION

1 605033 22 061077 83 705954 24 344267 25 712976 26 784223 47 784603 28 469924 29 N/A 2

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4-4 119297EX_0117

Wheel & Tire—48"/54"/60"

1

2

3

4

4

5

617

8

Page 47: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 4-5

Wheel & Tire—48"/54"/60"

INDEX NO. PART NO. QTY.

CS .500-13 X 1.25 HS G5FW .510 X 2.15 X .187 SPLFW .531 X 1.375 X .125BEARINGSPACERTIRE/WHEEL ASSEMBLY 20 X 8-10 (48" MOWERS)TIRE/WHEEL ASSEMBLY 20 X 12-10 (54"/60" MOWERS)WHEEL NUT FRONT TIRE ASSEMBLY

NOTES:

1. Torque to 65–75 ft-lbs.

DESCRIPTION

1 705954 22 344267 23 712976 24 784223 45 784603 26 605033 2

605031 27 061077 88 N/A 2

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4-6 119297EX_0117

Front Tire Breakdown—42"/48"

4

5

2

13

3

7

6

9

7

8

5

Page 49: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 4-7

Front Tire Breakdown—42"/48"

INDEX NO. PART NO. QTY.

FORKCS .750-10 X 8.00 HX G5FW .760 X 1.625 X .08 ZNYCNT .750-10 HX ZY NLTIRE/WHEEL ASSEMBLY 13 X 5.00TIRE 13 X 5.00 SMOOTHWHEEL BEARINGWHEEL, 6 X 3.25VALVE STEM

NOTES:

DESCRIPTION

1 190176 12 786731 13 025296 24 061101 15 605049 16 605039 17 786103 28 605050 19 019521 1

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4-8 119297EX_0117

Front Tire Breakdown—54"/60"

2

3

3

4

5

6

7

8

7

9

5

1

Page 51: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 4-9

Front Tire Breakdown—54"/60"

INDEX NO. PART NO. QTY

FORKCS .750-10 X 9.50 HX ZYFW .760 X 1.625 X .08 ZNYCNT .750-10 HX ZY NLTIRE/WHEEL ASSY 13 X 6.50TIRE, 13 X 6.50-6WHEEL BEARINGWHEEL, 6 X 4.50VALVE STEM

NOTES:

DESCRIPTION

1 190175 12 041475 13 025296 24 061101 15 605035 16 604843 17 604845 28 605036 19 019521 1

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4-10 119297EX_0117

Drive Wheel Breakdown

1

3

2

605033 TIRE/WHEEL ASSEMBLY (42" & 48" MOWERS)

INDEX NO. PART NO. QTY.

TIRE 20 X 8-10WHEELTIRE VALVE

605031 TIRE/WHEEL ASSEMBLY (54" & 60" MOWERS)

INDEX NO. PART NO. QTY.

TIRE 20 X 12-10WHEEL 10 X 8.5TIRE VALVE

NOTES:

DESCRIPTION

1 600692 12 605034 13 019521 1

DESCRIPTION

1 601348 12 603737 13 019521 1

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119297EX_0117 5-1

Section 5

Engine—S/N15021839 & Higher . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Engine—S/N 14092401–15021838. . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Engine—S/N Prior to 14092401 . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Engine Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Fuel System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

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5-2 119297EX_0117

Engine—S/N15021839 & Higher

1

2

3

14

1

4

5

6

8

6

7

6

7

9

15

13

14

12

11

10

3

3

2

16

Page 55: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 5-3

Engine—S/N 15021839 & Higher

INDEX NO. PART NO. QTY.

KAWASAKI FR651V, FR691V & FR730V ENGINEOIL DRAIN HOSEMUFFLERNT .375-16 HX FLK G5CLUTCH ANCHORFW .379 X .813 X .063CS .375-16 X 1.25 HX G8 P85CS .375-16 X 1.00 HX G5WIRE TIEKEY 1/4 SQ X .66 LGPULLEYCLUTCH KITFW .453 X 1.12 X .119 HRDCS .437-20 X 3.25 HX G5 P85CLUTCH BUSHINGCLUTCH HARNESS PIGTAIL

NOTES:

1. Supplied with the engine.2. Torque to 45–48 ft-lbs. Replace (do not reuse) the cap screw if it is removed or

loosened. Use only hand tools to install this fastener.3. Torque to 30–35 ft-lbs. Replace (do not reuse) the cap screw if it is removed or

loosened. Use only hand tools to install this fastener.4. Torque to 22 ft-lbs.

DESCRIPTION

1 N/A 12 604463 12"3 604016 14 016899 15 121625 16 767954 57 602580 48 036244 19 000331 410 712372 111 605675 112 605777K 113 602680 114 601834 115 605595 116 791251 1

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5-4 119297EX_0117

Engine—S/N 15021839 & Higher

1718

19

20

22

21

23

23

1

BLKBLKRED

RED

15 A

24

25

26

A

6

66

6

6

5

6

20

24

SEAT SUPPORTWITH GROMMET

9

FUSE

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119297EX_0117 5-5

Engine—S/N 15021839 & Higher

INDEX NO. PART NO. QTY.

LW .325 INT-EXT TOOTHCS M8 X 1.25 X 16 HX FL 10.9CS .250-20 X .75 HX G5FW .281 X .625 X .066STARTER SOLENOIDNT #10-32 HX ZNNT .250-20 HX G5HOSE CLAMP1/4" FUEL LINE3/16" FORMED VAPOR LINE

NOTES:

5. Part of the fuel system.6. Part of the wire harness.

DESCRIPTION

17 029876 118 720516 119 055939 220 768515 421 030817 122 044255 123 024927 224 000323 225 015818 18"26 604274 1

FUEL LINE LENGTH

18" TANK TO FUEL FILTER (FUEL)4A

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5-6 119297EX_0117

Engine—S/N 14092401–15021838

13

16

14

2

1

1

5

3 10

6

7

9

158

11

12

423

8

4

Page 59: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 5-7

Engine—S/N 14092401–15021838

INDEX NO. PART NO. QTY.

KAWASAKI FR651V, FR691V & FR730V ENGINEO-RINGOIL DRAIN VALVEOIL DRAIN HOSEMUFFLERNT .375-16 HX FLK G5CLUTCH ANCHORFW .379 X .813 X .063CS .375-16 X 1.00 HX G5CS .375-16 X 1.25 HX G8 P85WIRE TIESTUB SHAFT PUMP PULLEYCLUTCH KITFW .453 X 1.12 X .119 HRDCS .437-20 X 4.75 HX G5 P85CLUTCH HARNESS PIGTAIL

NOTES:

1. Supplied with the engine.2. Torque to 45–48 ft-lbs. Replace (do not reuse) the cap screw if it is

removed or loosened. Use only hand tools to install this fastener.3. Torque to 30–35 ft-lbs. Replace (do not reuse) the cap screw if it is

removed or loosened. Use only hand tools to install this fastener.4. Torque to 22 ft-lbs.

DESCRIPTION

1 N/A 12 604369 13 604350 14 604463 12"5 604016 16 016899 17 118238 18 767954 59 036244 110 602580 411 000331 412 604712 113 604713K 114 602680 115 605448 116 791251 1

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5-8 119297EX_0117

Engine—S/N 14092401–15021838

25

15A FUSE

BLK

RED

2223

18

21

20

1817

19

REDBLK

26

24

24

A

11

11

5

66

6

6

6

6

6

21

1

Page 61: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 5-9

Engine—S/N 14092401–15021838

INDEX NO. PART NO. QTY.

CS .250-20 X .75 HX G5FW .281 X .625 X .066NT #10-32 HX ZNSTARTER SOLENOIDNT .250-20 HX G5LW .325 INT-EXT TOOTHCS M8 X 1.25 X 16 HX FL10.9HOSE CLAMP1/4" FUEL LINE3/16" FORMED VAPOR LINE

NOTES:

5. Part of the fuel system.6. Part of the wire harness.

DESCRIPTION

17 055939 218 768515 419 044255 120 030817 121 024927 222 029876 123 720516 124 000323 225 015818 18"26 604274 1

FUEL LINE LENGTH

18" TANK TO FUEL FILTER (FUEL)4A

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5-10 119297EX_0117

Engine—S/N Prior to 14092401

1

1

5

3 10

6

7

9

8

42 3

8

4

17

14

13

16

215

11

12

Page 63: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 5-11

Engine—S/N Prior to 14092401

INDEX NO. PART NO. QTY.

KAWASAKI FR651V, FR691V & FR730V ENGINEO-RINGOIL DRAIN VALVEOIL DRAIN HOSEMUFFLERNT .375-16 HX FLK G5CLUTCH ANCHORFW .379 X .813 X .063CS .375-16 X 1.00 HX G5CS .375-16 X 1.25 HX G8 P85WIRE TIESTUB SHAFT PUMP PULLEYCLUTCH KITFW .453 X 1.12 X .119 HRDCS .437-20 X 5.00 HX G5CLUTCH HARNESS PIGTAILFW 1.03 X 1.50 X 0.134

NOTES:

1. Supplied with the engine.2. Torque to 45–48 ft-lbs. Replace (do not reuse) the cap screw if it is removed or

loosened. Use only hand tools to install this fastener.3. Torque to 30–35 ft-lbs. Replace (do not reuse) the cap screw if it is removed or

loosened. Use only hand tools to install this fastener.4. Torque to 22 ft-lbs.

DESCRIPTION

1 N/A 12 604369 13 604350 14 604463 12"5 604016 16 016899 17 118238 18 767954 59 036244 1

10 602580 411 000331 412 604712 113 604713K 114 602680 215 604721 116 791251 117 045765 1

Page 64: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

5-12 119297EX_0117

Engine—S/N Prior to 14092401

26

15A FUSE

BLK

RED1

2324

19

22

21

1918

20

REDBLK

27

25

25

A

11

11

5

66

6

6

6

6

6

22

Page 65: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 5-13

Engine—S/N Prior to 14092401

INDEX NO. PART NO. QTY.

CS .250-20 X .75 HX G5FW .281 X .625 X .066NT #10-32 HX ZNSTARTER SOLENOIDNT .250-20 HX G5 ZNYCLW .312 INT-EXT TOOTHCS M8 X 1.25 X 16 HX FL10.9HOSE CLAMP1/4" FUEL LINE3/16" FORMED VAPOR LINE

NOTES:

5. Part of the fuel system.6. Part of the wire harness.

DESCRIPTION

18 055939 219 768515 420 044255 121 030817 122 024927 223 029876 124 720516 125 000323 226 015818 18"27 604274 1

FUEL & VAPOR LINE LENGTHS

18" TANK TO FUEL FILTER (FUEL)4A

Page 66: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

5-14 119297EX_0117

Engine Service Parts

1

3

2

INDEX NO. PART NO. QTY.

IN-LINE FUEL FILTERAIR FILTEROIL FILTER

NOTES:

DESCRIPTION

1 068478 12 603059 13 602581 1

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119297EX_0117 5-15

This page intentionally left blank.

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5-16 119297EX_0117

Fuel System

8

9

10

6

73

4

67

6

7

2

11

12

13

14

1

15

15B

B

1415C

43

5A

16

Page 69: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 5-17

Fuel System

INDEX NO. PART NO. QTY.

FUEL TANK (S/N 15077829 & HIGHER)FUEL TANK (S/N PRIOR TO 15077829)RATCHETING GAS CAP, 3.5"LEFT TANK MOUNTRIGHT TANK MOUNTSEAL 3/8 X 3/4CS .250-20 X .75 HX G5FW .281 X .625 X .0663/16" FORMED VAPOR LINE1/4" HOSE BARB CROSS3/16" FORMED VAPOR LINEBOOT, 3/16" TO 1/4" BARBVAPOR SYSTEM FILTERWIRE TIEPUSH BUTTON MOUNTWEATHERSTRIPGM .63 X 1.13 X .88 X .13 (S/N 15077829 & HIGHER)

NOTES:

DESCRIPTION

1 605958 1604336 1

2 603807 13 117059 14 117060 15 713198 18.5"6 055939 37 768515 38 604279 19 604322 1

10 604273 111 604292 112 604323 113 000331 214 604307 215 033035 22"16 601400 1

WEATHERSTRIP & SEAL LENGTH

9.25"

5"

12"

ABC

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5-18 119297EX_0117

Page 71: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-1

Section 642" Service Deck—Low Cut. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

42" Deck Pulley & Spindles—Low Cut. . . . . . . . . . . . . . . . . . . . . . . . 6-4

42" Deck—Low Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

48" Service Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

48" Deck Pulleys & Spindles—S/N 15010708 & Higher . . . . . . . . . 6-10

48" Deck Pulleys & Spindles—S/N 14074266–15010707 . . . . . . . . 6-12

48" Deck Pulleys & Spindles—S/N Prior to 14074266. . . . . . . . . . . 6-14

48" Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

48" Service Deck—Low Cut. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

48" Deck Pulleys & Spindles—Low Cut . . . . . . . . . . . . . . . . . . . . . . 6-20

48" Deck—Low Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22

54" Service Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24

54" Deck Pulleys & Spindles—S/N 15010708 & Higher . . . . . . . . . 6-26

54" Deck Pulleys & Spindles—S/N 14074307–15010707 . . . . . . . . 6-28

54" Deck Pulleys & Spindles—S/N Prior to 14074307. . . . . . . . . . . 6-30

54" Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32

54" Service Deck—Low Cut. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-34

54" Deck Pulleys & Spindles—Low Cut . . . . . . . . . . . . . . . . . . . . . . 6-36

54" Deck—Low Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-38

60" Service Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-40

60" Deck Pulleys & Spindles—S/N 15010708 & Higher . . . . . . . . . 6-42

60" Deck Pulleys & Spindles—S/N 14074367–15010707 . . . . . . . . 6-44

60" Deck Pulleys & Spindles—S/N Prior to 14074367. . . . . . . . . . . 6-46

60" Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-48

Deck Lift & Mounting Hardware—42" . . . . . . . . . . . . . . . . . . . . . . . 6-50

Deck Lift & Mounting Hardware—48"/54"/60" . . . . . . . . . . . . . . . . . 6-54

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6-2 119297EX_0117

42" Service Deck—Low Cut

1

4

3

2

INDEX NO. PART NO. QTY.

42" DECK (WITH DECALS)DANGER/CHUTE DECALDANGER/OBJECTS DECAL42" DECK ID DECAL

NOTES:

DESCRIPTION

1 553914 12 604221 13 604222 14 793521 1

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119297EX_0117 6-3

This page intentionally left blank.

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6-4 119297EX_0117

42" Deck Pulley & Spindles—Low Cut

1

2

34

5

7

6

1

2

13

12

14

15

16

17

168

10

11

9

20

211

22

23

18

19

24

2526

27

5

28

29 19

30

1

1

2

1

Page 75: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-5

42" Deck Pulley & Spindles—Low Cut

INDEX NO. PART NO. QTY.

NT .500-13 NLFW .531 X 1.063 X .175IDLER PULLEY, 4.00" FLATNT .375-16 G5 NLFW .406 X 1.25 X .12 HRD ZIDLER ARMIDLER SPRINGPIVOT SPACER BUSHINGSPACERNT .375-16 HX NL JAM ZNTENSIONING PULLEY STOPCB .50-13 X 2.00 STD ZNIDLER PULLEY, 4.00" FLATCS .500-13 X 1.25 HX G5FW .515 X 1.65 X .125 HD ZYPULLEY SPACERPULLEYNT .375-16 HX G5FW .379 X .813 X .063PULLERPIVOT SPACER BUSHINGNT .312-18 HX NL JAM G2 ZNFW .343 X .687 X .051/.080HCS .500-13 X 1.50 HX G5CB .375-16 X 1.00 G5 ZNYCB .312-18 X .620 G5 ZNCS .375-16 X 1.50 HX G5CB .50-13 X 2.50 STD ZNSPINDLE ASSEMBLYCS .375-16 X 1.375 HX G5

NOTES:

1. Torque to 73 ft-lbs.2. Torque to 30 ft-lbs.

DESCRIPTION

1 781567 42 767962 23 603986 14 086660 15 712893 26 117512 17 122388 18 601839 19 117539 1

10 603846 111 122398 112 604253 113 604219 114 705954 215 798603 216 604661 417 604704 218 054502 819 767954 1620 122027 121 606250 222 604251 123 768523 124 074252 225 025395 126 083147 127 080655 128 604254 129 601804 230 005116 8

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6-6 119297EX_0117

42" Deck—Low Cut

1

1

17

19

11

11 18

12

2

1 2

34

9

65

10

12

11

14

15

16

2

2

3

6

7

8

76

13

13

13

Page 77: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-7

42" Deck—Low Cut

INDEX NO. PART NO. QTY.

DECK PULLEY COVERCS .250-20 X .75 HX FLGBELTDISCHARGE CHUTECHUTE SPRINGNT .375-16 G5 NLFW .379 X .813 X .063DISCHARGE ADAPTERDISCHARGE CHUTE PINNT .500-13 NLFW .531 X 1.063 X .175PLASTIC WHEEL ASSEMBLY (WITH HARDWARE)CB .375-16 X 1.00 G5 ZNYBLADE, 20.50"-L-F-CWBLADE, F20.50"-H-F-CWBLADE, 20.50"-CAT-F-CWBLADE, 20.50"-MUL-F-CWBLADE, 20.50"-GAT-F-CWCW .631 X 2.25 X .187CS .625-11 X 1.25 HX G5CS .500-13 X 4.25 HX G5PLASTIC WHEELNT .500-13 HX JAM ZNYC

NOTES:

1. Torque to 118 ft-lbs.2. Torque to 8 ft-lbs on these 2 self-tapping screws.3. Do not torque; the discharge chute must pivot freely.

DESCRIPTION

1 605452 22 604324 23 606016 14 604609 15 604331 16 086660 47 767954 38 190387 19 604346 1

10 781567 111 767962 312 788166 113 025395 314 793794 2

794685 2793935 2794214 2794230 2

15 782474 216 781872 217 781708 118 031997 119 053199 1

Page 78: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-8 119297EX_0117

48" Service Deck1

5

4

3

2

INDEX NO. PART NO. QTY.

48" DECK (WITH DECALS)DANGER/OBJECTS DECAL48" DECK DECALDECK DANGERS DECALDISCHARGE CHUTE DECAL

NOTES:

DESCRIPTION

1 552357 12 604222 13 793976 14 601837 15 601624 1

Page 79: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-9

This page intentionally left blank.

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6-10 119297EX_0117

48" Deck Pulleys & Spindles—S/N 15010708 & Higher11

1

3

2

45

6

10

9

7

7

8

1112

13

14

15

16

1714 18

19

2220

21

17

1

2

1

1

3

1

22

23

25

5

3

23

24

Page 81: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-11

48" Deck Pulleys & Spindles—S/N 15010708 & Higher

INDEX NO. PART NO. QTY.

NT .500-13 HX G8 ZY NLBELT GUIDEFW .531 X 1.063 X .175IDLER PULLEY, 4.00" FLATNT .312-18 HX NL JAM G2 ZNFW .340 X .675 X .035 ZNSPRING TENSIONER ANCHORIDLER SPRINGIDLER SLEDIDLER SLIDECB .50-13 X 2.00 STD ZNCS .500-13 X 1.25 HX G5FW .515 X 1.65 X .125 HD ZYPULLEY SPACERDRIVE PULLEY B-SECNT .375-16 HX G5 ZNYFW .379 X .813 X .063IDLER PULLEY, 5.00" O.D.IDLER PULLEY, 4.00" FLATSPINDLE ASSEMBLYCS .375-16 X 1.375 HX G5CB .312-18 X .620 G5 ZNFW .531 X 2.00 X .25CS .500-13 X 2.75 HX G5 ZFW .440 X 1.00 X .083 ZNY

NOTES:

1. Torque to 73 ft-lbs.2. Torque to 30 ft-lbs.

DESCRIPTION

1 781567 32 121780 13 767962 34 603986 15 604251 56 604252 47 604110 28 122388 19 604194 1

10 604079 211 604253 112 705954 313 798603 314 604661 615 604665 316 054502 1217 767954 2418 604231 119 604219 120 601804 321 005116 1222 083147 523 605516 224 721910 225 017129 1

Page 82: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-12 119297EX_0117

48" Deck Pulleys & Spindles—S/N 14074266–15010707

11

1

2

2

4

5

9

8

6

6

7

11

11

12

13

14

15

1613 17

18

2219

20

16

1

2

1

1

2

1

22

23

25

4

3

21

24

Page 83: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-13

48" Deck Pulleys & Spindles—S/N 14074266–15010707

INDEX NO. PART NO. QTY.

NT .500-13 NL G5FW .531 X 1.063 X .175IDLER PULLEY, 4.00" FLATNT .312-18 HX NL JAM G2 ZNFW .340 X .675 X .035 ZNSPRING TENSIONER ANCHORIDLER SPRINGIDLER SLEDIDLER SLIDECB .50-13 X 2.00 STD ZNCS .500-13 X 1.25 HS G5FW .515 X 1.65 X .125 HD ZYPULLEY SPACERDRIVE PULLEY B-SECNT .375-16 HX G5 ZNYFW .379 X .813 X .063IDLER PULLEY, 5.00" O.D.IDLER PULLEY, 4.00" FLATSPINDLE ASSEMBLYCS .375-16 X 1.375 HX G5CB .50-13 X 2.50 STD ZNCB .312-18 X .620 G5 ZNFW .510 X 2.15 X .187 SPLCS .500-13 X 2.75 HX G5 ZFW .440 X 1.00 X .083 ZNY

NOTES:

1. Torque to 73 ft-lbs.2. Torque to 30 ft-lbs.

DESCRIPTION

1 781567 32 767962 33 603986 14 604251 55 604252 46 604110 27 604291 18 604194 19 604079 2

10 604253 111 705954 312 798603 313 604661 614 604665 315 054502 1216 767954 2417 604231 118 604219 119 601804 320 005116 1221 604254 122 083147 523 344267 124 721910 125 017129 1

Page 84: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-14 119297EX_0117

48" Deck Pulleys & Spindles—S/N Prior to 14074266

11

1

2

2

34

5

9

8

6

6

7

10

11

12

13

14

15

1613 17

18

2219

20

2116

1

2

1

1

2

1

Page 85: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-15

48" Deck Pulleys & Spindles—S/N Prior to 14074266

INDEX NO. PART NO. QTY.

NT .500-13 NL G5FW .531 X 1.063 X .175IDLER PULLEY, 4.00" FLATNT .312-18 HX NL JAM G2 ZNFW .340 X .675 X .035 ZNSPRING TENSIONER ANCHORIDLER SPRINGIDLER SLEDIDLER SLIDECB .50-13 X 2.00 STD ZNCS .500-13 X 1.25 HS G5FW .515 X 1.65 X .125 HD ZYPULLEY SPACERDRIVE PULLEY B-SECNT .375-16 HX G5 ZNYFW .379 X .813 X .063IDLER PULLEY, 5.00" O.D.IDLER PULLEY, 4.00" FLATSPINDLE ASSEMBLYCS .375-16 X 1.375 HX G5CB .50-13 X 2.50 STD ZNCB .312-18 X .620 G5 ZN

NOTES:

1. Torque to 73 ft-lbs.2. Torque to 30 ft-lbs.

DESCRIPTION

1 781567 32 767962 33 603986 14 604251 45 604252 46 604110 27 604291 18 604194 19 604079 2

10 604253 111 705954 312 798603 313 604661 614 604665 315 054502 1216 767954 2417 604231 118 604219 119 601804 320 005116 1221 604254 222 083147 4

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6-16 119297EX_0117

48" Deck1

1

7

4

16

1112

14

2

9

3

5

2

6

8

10

18

20

12

12 19

13

1

13

15

817

17

2

2

3

4

4

Page 87: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-17

48" Deck

INDEX NO. PART NO. QTY.

PULLEY COVER (S/N 15091572 & HIGHER)CS .250-20 X .75 HX FLGBELT, B-SECTIONDISCHARGE CHUTEDISCHARGE CHUTE PINCHUTE SPRINGNT .375-16 HX G5 NLPULLER PINRS PULLERLS PULLERNT .500-13 HX G8 ZY NLFW .531 X 1.063 X .175PLASTIC WHEEL ASSEMBLYBLADE, 16.50"-L-F-CWBLADE, F16.50"-L-F-CWBLADE, F16.50"-H-F-CWBLADE, 16.50"-MUL-F-CWBLADE, 16.50"-GAT-F-CWBLADE, 16.50"-CAT-F-CWCW .631 X 2.25 X .187 PNTCS .625-11 X 1.25 HX G5 ZHP .125 X 2.375 ZNCS .500-13 X 4.25 HX G5PLASTIC WHEELNT .500-13 HX JAM ZNYC

NOTES:

1. Torque to 118 ft-lbs. 2. Torque to 8 ft-lbs on these 4 self-tapping screws.3. Do not torque; the discharge chute must pivot freely.4. Mowers with serial numbers prior to 15091572 require kit 122667, which

includes drill templates and (1) pulley cover 605867.

DESCRIPTION

1 605867 22 604324 43 604830 14 604609 15 604346 16 604331 17 086660 18 604658 29 117877 1

10 117878 111 781567 312 767962 513 788166 314 601123 3

601014 3795757 3796623 3796631 3796649 3

15 782474 316 781872 317 017301 218 781708 119 031997 120 053199 1

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6-18 119297EX_0117

48" Service Deck—Low Cut

1

5

4

3

2

INDEX NO. PART NO. QTY.

48" DECK (WITH DECALS)DANGER/OBJECTS DECAL48" DECK DECALDECK DANGERS DECALDISCHARGE CHUTE DECAL

NOTES:

DESCRIPTION

1 553915 12 604222 13 793976 14 601837 15 601624 1

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119297EX_0117 6-19

This page intentionally left blank.

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6-20 119297EX_0117

48" Deck Pulleys & Spindles—Low Cut11

2

4 5

6

10

97 78

1112

13

14

15

16

17

14 18

19

22

20

21

17

2

1

1

3

1

22

25

5

3

23

24

Page 91: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-21

48" Deck Pulleys & Spindles—Low Cut

INDEX NO. PART NO. QTY.

NT .500-13 HX G8 ZY NLBELT GUIDEFW .531 X 1.063 X .175IDLER PULLEY, 4.00" FLATNT .312-18 HX NL JAM G2 ZNFW .340 X .675 X .035 ZNSPRING TENSIONER ANCHORIDLER SPRINGIDLER SLEDIDLER SLIDECB .50-13 X 2.00 STD ZNCS .500-13 X 1.25 HX G5FW .515 X 1.65 X .125 HD ZYPULLEY SPACERDRIVE PULLEY B-SECNT .375-16 HX G5 ZNYFW .379 X .813 X .063IDLER PULLEY, 5.00" O.D.IDLER PULLEY, 4.00" FLATSPINDLE ASSEMBLYCS .375-16 X 1.375 HX G5CB .312-18 X .620 G5 ZNFW .531 X 2.00 X .25CS .500-13 X 2.75 HX G5 ZFW .440 X 1.00 X .083 ZNY

NOTES:

1. Torque to 73 ft-lbs.2. Torque to 30 ft-lbs.

DESCRIPTION

1 781567 32 121780 13 767962 34 603986 15 604251 56 604252 47 604110 28 122388 19 604194 1

10 604079 211 604253 112 705954 313 798603 314 604661 615 604665 316 054502 1217 767954 2418 604231 119 604219 120 601804 321 005116 1222 083147 523 605516 224 721910 225 017129 1

Page 92: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-22 119297EX_0117

48" Deck—Low Cut

34

6

21

1617

19

2

13

5

2

4

12

22

24

17

17 23

18

1

18

20

1215

2

2

3

7

98

4

5

10

14

1

10 11

Page 93: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-23

48" Deck—Low Cut

INDEX NO. PART NO. QTY.

PULLEY COVERCS .250-20 X .75 HX FLGBELT, B-SECTIONNT .375-16 NL G5FW .379 X .813 X .063DISCHARGE CHUTEDISCHARGE CHUTE PINCHUTE SPRINGDISCHARGE ADAPTERCB .375-16 X 1.00 G5 ZNYCB .375-16 X .75 STD ZNPULLER PINRS PULLERHP .125 X 2.375 ZNLS PULLERNT .500-13 NL G5FW .531 X 1.063 X .175PLASTIC WHEEL ASSEMBLYBLADE, 16.50"-L-F-CWBLADE, F16.50"-L-F-CWBLADE, F16.50"-H-F-CWBLADE, 16.50"-MUL-F-CWBLADE, 16.50"-GAT-F-CWBLADE, 16.50"-CAT-F-CWCW .631 X 2.25 X .187 PNTCS .625-11 X 1.25 HX G5 ZCS .500-13 X 4.25 HX G5PLASTIC WHEELNT .500-13 HX JAM ZNYC

NOTES:

1. Torque to 118 ft-lbs. 2. Torque to 8 ft-lbs on these 4 self-tapping screws.3. Do not torque; the discharge chute must pivot freely.

DESCRIPTION

1 605867 22 604324 43 604830 14 086660 45 767954 36 604609 17 604346 18 604331 19 190385 1

10 025395 211 011320 112 604658 213 117877 114 017301 215 117878 116 781567 317 767962 918 788166 319 601123 3

601014 3795757 3796623 3796631 3796649 3

20 782474 321 781872 322 781708 123 031997 124 053199 1

Page 94: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-24 119297EX_0117

54" Service Deck

13

2

4

INDEX NO. PART NO. QTY.

54" DECK (WITH DECALS)DANGER/CHUTE DECAL54" DECK DECALDANGER/OBJECTS DECAL

NOTES:

DESCRIPTION

1 552358 12 604221 13 799171 14 604222 1

Page 95: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-25

This page intentionally left blank.

Page 96: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-26 119297EX_0117

54" Deck Pulleys & Spindles—S/N 15010708 & Higher

2

15

1

77

9

4

19

11

8

14

14

1213

5

6

10

1

18

16

17

1

13

20

17

2 21

5

22

21

5

22

3

118

1

3

23

24

1

Page 97: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-27

54" Deck Pulleys & Spindles—S/N 15010708 & Higher

INDEX NO. PART NO. QTY.

NT .500-13 HX G8 ZY NLBELT GUIDEFW .531 X 1.063 X .175IDLER PULLEY, 5.00" O.D.NT .312-18 HX NL JAM G2 ZNFW .340 X .675 X .035 ZNSPRING TENSIONER ANCHORIDLER SPRINGIDLER SLEDIDLER SLIDECB .50-13 X 2.00 STD ZNCS .500-13 X 1.25 HX G5FW .515 X 1.65 X .125 HD ZYPULLEY SPACERPULLEYNT .375-16 HX G5 ZNYFW .379 X .813 X .063IDLER PULLEY, 5.00" O.D.CS .375-16 X 1.375 HX G5SPINDLE ASSEMBLYCB .312-18 X .620 G5 ZNFW .440 X 1.00 X .083 ZNYFW .531 X 2.00 X .25CS .500-13 X 2.75 HX G5 Z

NOTES:

1. Torque to 73 ft-lbs.2. Torque to 30 ft-lbs.

DESCRIPTION

1 781567 32 121780 13 767962 34 604792 15 604251 86 604252 67 604110 28 122388 19 604791 1

10 604790 211 604253 112 705954 313 798603 314 604661 615 604664 316 054502 1217 767954 2418 604231 219 005116 1220 601804 321 083147 822 017129 223 605516 224 721910 2

Page 98: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-28 119297EX_0117

54" Deck Pulleys & Spindles—S/N 14074307–15010707

2

14

1

66 8

3

18

10

7

13

11

12

4

5

9

1

17

15

16

1

12

19

16

21

4

22

2

117

1

20

13

1

2

24

23

21

4

22

Page 99: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-29

54" Deck Pulleys & Spindles—S/N 14074307–15010707

INDEX NO. PART NO. QTY.

NT .500-13 NL G5FW .531 X 1.063 X .175IDLER PULLEY, 5.00" O.D.NT .312-18 HX NL JAM G2 ZNFW .340 X .675 X .035 ZNSPRING TENSIONER ANCHORIDLER SPRINGIDLER SLEDIDLER SLIDECB .50-13 X 2.00 STD ZNCS .500-13 X 1.25 HS G5FW .515 X 1.65 X .125 HD ZYPULLEY SPACERPULLEYNT .375-16 HX G5 ZNYFW .379 X .813 X .063IDLER PULLEY, 5.00" O.D.CS .375-16 X 1.375 HX G5SPINDLE ASSEMBLYCB .50-13 X 2.50 STD ZNCB .312-18 X .620 G5 ZNFW .440 X 1.00 X .083 ZNYFW .510 X 2.15 X .187 SPLCS .500-13 X 2.75 HX G5 Z

NOTES:

1. Torque to 73 ft-lbs.2. Torque to 30 ft-lbs.

DESCRIPTION

1 781567 32 767962 33 604792 14 604251 85 604252 66 604110 27 604291 18 604791 19 604790 2

10 604253 111 705954 312 798603 313 604661 614 604664 315 054502 1216 767954 2417 604231 218 005116 1219 601804 320 604254 121 083147 822 017129 223 344267 124 721910 1

Page 100: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-30 119297EX_0117

54" Deck Pulleys & Spindles—S/N Prior to 14074307

2

14

1

6

68

3

18

10

7

13

11

12

4

5

9

1

17

15

16

1

12

19

16

21

4

22

2

117

1

20

13

1

2

Page 101: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-31

54" Deck Pulleys & Spindles—S/N Prior to 14074307

INDEX NO. PART NO. QTY.

NT .500-13 NL G5FW .531 X 1.063 X .175IDLER PULLEY, 5.00" O.D.NT .312-18 HX NL JAM G2 ZNFW .340 X .675 X .035 ZNSPRING TENSIONER ANCHORIDLER SPRINGIDLER SLEDIDLER SLIDECB .50-13 X 2.00 STD ZNCS .500-13 X 1.25 HS G5FW .515 X 1.65 X .125 HD ZYPULLEY SPACERPULLEYNT .375-16 HX G5 ZNYFW .379 X .813 X .063IDLER PULLEY, 5.00" O.D.CS .375-16 X 1.375 HX G5SPINDLE ASSEMBLYCB .50-13 X 2.50 STD ZNCB .312-18 X .620 G5 ZNFW .343 X .687 X .051/.080H

NOTES:

1. Torque to 73 ft-lbs.2. Torque to 30 ft-lbs.

DESCRIPTION

1 781567 32 767962 33 604792 14 604251 85 604252 66 604110 27 604291 18 604791 19 604790 2

10 604253 111 705954 312 798603 313 604661 614 604664 315 054502 1216 767954 2417 604231 218 005116 1219 601804 320 604254 121 083147 822 768523 2

Page 102: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-32 119297EX_0117

54" Deck1

4

8

5

17

1213

15

2

10

3

6

2

7

9

11

19

21

13

13 20

14

1

14

16

918

18

3

2

2

Page 103: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-33

54" Deck

INDEX NO. PART NO. QTY.

RS PULLEY COVERCS .250-20 X .75 HX FLGBELT, B-SECTIONLS PULLEY COVERDISCHARGE CHUTEDISCHARGE CHUTE PINCHUTE SPRINGNT .375-16 NL G5PULLER PINRS PULLERLS PULLERNT .500-13 NL G5FW .531 X 1.063 X .175PLASTIC WHEEL ASSEMBLYBLADE, 18.50"-L-F-CWBLADE, F18.50"-L-F-CWBLADE, F18.50"-H-F-CWBLADE, 18.50"-MUL-F-CWBLADE, 18.50"-GAT-F-CWCW .631 X 2.25 X .187 PNTCS .625-11 X 1.25 HX G5 ZHP .125 X 2.375 ZNCS .500-13 X 4.25 HX G5PLASTIC WHEELNT .500-13 HX JAM ZNYC

NOTES:

1. Torque to 118 ft-lbs. 2. Torque to 8 ft-lbs on these 4 self-tapping screws.3. Do not torque; the discharge chute must pivot freely.

DESCRIPTION

1 604722 12 604324 43 604817 14 604723 15 604609 16 604346 17 604331 18 086660 19 604658 2

10 117877 111 117878 112 781567 313 767962 514 788166 315 601124 3

601012 3797696 3797704 3797712 3

16 782474 317 781872 318 017301 219 781708 120 031997 121 053199 1

Page 104: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-34 119297EX_0117

54" Service Deck—Low Cut

1

2

4

3

INDEX NO. PART NO. QTY.

54" DECK (WITH DECALS)54" DECK ID DECALDECK DANGERS DECALDANGER/CHUTE DECAL

NOTES:

DESCRIPTION

1 553916 12 799171 13 604222 14 604221 1

Page 105: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-35

This page intentionally left blank.

Page 106: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-36 119297EX_0117

54" Deck Pulleys & Spindles—Low Cut123

457

8 9

1

10

12

14

15

13

141

3

17

24

20

9

1

1

1

6

6

11

8

3

18

16

17

18

19

919

21

2222

23

1

2

20

Page 107: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-37

54" Deck Pulleys & Spindles—Low Cut

INDEX NO. PART NO. QTY.

NT .500-13 HX G8 ZY NLBELT GUIDEFW .531 X 1.063 X .175IDLER PULLEY, 5.00" O.D.IDLER SLEDSPRING TENSIONER ANCHORIDLER SPRINGIDLER SLIDENT .312-18 HX NL JAM G2 ZNFW .340 X .675 X .035 ZNCB .50-13 X 2.00 STD ZNCS .500-13 X 1.25 HX G5FW .515 X 1.65 X .125 HD ZYPULLEY SPACERPULLEY, DECK DRIVE B-SECNT .375-16 HX G5FW .379 X .813 X .063IDLER PULLEY, 5.00" O.D.FW .440 X 1.00 X .083 ZNYCB .312-18 X .620 G5 ZNFW .531 X 2.00 X .25CS .500-13 X 2.75 HX G5 ZSPINDLE ASSEMBLYCS .375-16 X 1.375 HX G5

NOTES:

1. Torque to 73 ft-lbs.2. Torque to 30 ft-lbs.

DESCRIPTION

1 781567 32 121780 13 767962 34 604792 15 604791 16 604110 27 122388 18 604790 29 604251 8

10 604252 611 604253 112 705954 313 798603 314 604661 615 604664 316 054502 1217 767954 2418 604231 219 017129 220 083147 821 605516 222 721910 223 601804 324 005116 12

Page 108: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-38 119297EX_0117

54" Deck—Low Cut

1

48

5

23

1819

21

2

15

3

12

2

11

14

17

1

20

22

14

3

2

24

26

19

19 25

20

10

6

8

96

13

8

7

16

9

2

Page 109: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-39

54" Deck—Low Cut

INDEX NO. PART NO. QTY.

RS PULLEY COVERCS .250-20 X .75 HX FLGLS PULLEY COVERBELT, B-SECTIONDISCHARGE CHUTECB .375-16 X 1.00 G5 ZNYDISCHARGE ADAPTERNT .375-16 NL G5FW .379 X .813 X .063NT .375-16 HX G5 FLKCHUTE SPRINGDISCHARGE CHUTE PINCB .375-16 X .75 STD ZNPULLER PINRS PULLERHP .125 X 2.375 ZNLS PULLERNT .500-13 HX G8 ZY NLFW .531 X 1.063 X .175PLASTIC WHEEL ASSEMBLYBLADE, 18.50"-L-F-CWBLADE, F18.50"-L-F-CWBLADE, F18.50"-H-F-CWBLADE, 18.50"-MUL-F-CWBLADE, 18.50"-GAT-F-CWCW .631 X 2.25 X .187 PNTCS .625-11 X 1.25 HX G5 ZCS .500-13 X 4.25 HX G5PLASTIC WHEELNT .500-13 HX JAM ZNYC

NOTES:

1. Torque to 118 ft-lbs. 2. Torque to 8 ft-lbs on these 4 self-tapping screws.3. Do not torque; the discharge chute must pivot freely.

DESCRIPTION

1 604722 12 604324 43 604723 14 604817 15 604609 16 025395 27 190389 18 086660 39 767954 210 016899 111 604331 112 604346 113 011320 114 604658 215 117877 116 017301 217 117878 118 781567 319 767962 920 788166 321 601124 3

601012 3797696 3797704 3797712 3

22 782474 323 781872 324 781708 125 031997 126 053199 1

Page 110: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-40 119297EX_0117

60" Service Deck

12

3

4

INDEX NO. PART NO. QTY.

60" DECK (WITH DECALS)DANGER/CHUTE DECAL60" DECK DECALDANGER/OBJECTS DECAL

NOTES:

DESCRIPTION

1 552359 12 604221 13 786277 14 604222 1

Page 111: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-41

This page intentionally left blank.

Page 112: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-42 119297EX_0117

60" Deck Pulleys & Spindles—S/N 15010708 & Higher

2

15

1

77 9

3

19

11

8

14

14

12

13

5

6

10

2

1

18

21

16

17

1

1

3

20

17

5

22

21

1

18

1 1

3

5

22

4

23

24

Page 113: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-43

60" Deck Pulleys & Spindles—S/N 15010708 & Higher

INDEX NO. PART NO. QTY.

NT .500-13 HX G8 ZY NLBELT GUIDEFW .531 X 1.063 X .175IDLER PULLEY, 5.00" O.D.NT .312-18 HX NL JAM G2 ZNFW .340 X .675 X .035 ZNSPRING TENSIONER ANCHORIDLER SPRINGIDLER SLEDIDLER SLIDECB .50-13 X 2.00 STD ZNCS .500-13 X 1.25 HX G5FW .515 X 1.65 X .125 HD ZYPULLEY SPACERPULLEYNT .375-16 HX G5 ZNYFW .379 X .813 X .063IDLER PULLEY, 5.00" O.D.CS .375-16 X 1.375 HX G5SPINDLE ASSEMBLYCB .312-18 X .620 G5 ZNFW .440 X 1.00 X .083 ZNYFW .531 X 2.00 X .25CS .500-13 X 2.75 HX G5 Z

NOTES:

1. Torque to 73 ft-lbs.2. Torque to 30 ft-lbs.

DESCRIPTION

1 781567 32 121780 13 767962 34 604792 15 604251 86 604252 67 604110 28 122388 19 604791 1

10 604790 211 604253 112 705954 313 798603 314 604661 615 604704 316 054502 1217 767954 2418 604231 219 005116 1220 601804 321 083147 822 017129 223 605516 224 721910 2

Page 114: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-44 119297EX_0117

60" Deck Pulleys & Spindles—S/N 14074367–15010707

2

14

1

66 8

3

18

10

7

13

13

11

12

4

5

9

2

1

17

23

15

16

1

1

2

19

16

21

17

1 1

2

20

422

1

4

22

24

21

Page 115: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-45

60" Deck Pulleys & Spindles—S/N 14074367–15010707

INDEX NO. PART NO. QTY.

NT .500-13 NL G5FW .531 X 1.063 X .175IDLER PULLEY, 5.00" O.D.NT .312-18 HX NL JAM G2 ZNFW .340 X .675 X .035 ZNSPRING TENSIONER ANCHORIDLER SPRINGIDLER SLEDIDLER SLIDECB .50-13 X 2.00 STD ZNCS .500-13 X 1.25 HS G5FW .515 X 1.65 X .125 HD ZYPULLEY SPACERPULLEYNT .375-16 HX G5 ZNYFW .379 X .813 X .063IDLER PULLEY, 5.00" O.D.CS .375-16 X 1.375 HX G5SPINDLE ASSEMBLYCB .50-13 X 2.50 STD ZNCB .312-18 X .620 G5 ZNFW .440 X 1.00 X .083 ZNYFW .510 X 2.15 X .187 SPLCS .500-13 X 2.75 HX G5 Z

NOTES:

1. Torque to 73 ft-lbs.2. Torque to 30 ft-lbs.

DESCRIPTION

1 781567 32 767962 33 604792 14 604251 85 604252 66 604110 27 604291 18 604791 19 604790 2

10 604253 111 705954 312 798603 313 604661 614 604704 315 054502 1216 767954 2417 604231 218 005116 1219 601804 320 604254 121 083147 822 017129 223 344267 124 721910 1

Page 116: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-46 119297EX_0117

60" Deck Pulleys & Spindles—S/N Prior to 14074367

2

14

1

6

68

3

18

10

7

13

13

11

12

4

5

9

2

1

17

20

15

16

1

1

2

19

16

21

17

1 1

2

20

422

1

Page 117: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-47

60" Deck Pulleys & Spindles—S/N Prior to 14074367

INDEX NO. PART NO. QTY.

NT .500-13 NL G5FW .531 X 1.063 X .175IDLER PULLEY, 5.00" O.D.NT .312-18 HX NL JAM G2 ZNFW .340 X .675 X .035 ZNSPRING TENSIONER ANCHORIDLER SPRINGIDLER SLEDIDLER SLIDECB .50-13 X 2.00 STD ZNCS .500-13 X 1.25 HS G5FW .515 X 1.65 X .125 HD ZYPULLEY SPACERPULLEYNT .375-16 HX G5 ZNYFW .379 X .813 X .063IDLER PULLEY, 5.00" O.D.CS .375-16 X 1.375 HX G5SPINDLE ASSEMBLYCB .50-13 X 2.50 STD ZNCB .312-18 X .620 G5 ZNFW .343 X .687 X .051/.080H

NOTES:

1. Torque to 73 ft-lbs.2. Torque to 30 ft-lbs.

DESCRIPTION

1 781567 32 767962 33 604792 14 604251 75 604252 66 604110 27 604291 18 604791 19 604790 2

10 604253 111 705954 312 798603 313 604661 614 604704 315 054502 1216 767954 2417 604231 218 005116 1219 601804 320 604254 221 083147 722 768523 1

Page 118: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-48 119297EX_0117

60" Deck1

4

8

5

17

1213

15

2

10

3

6

2

7

9

11

19

21

13

13 20

14

1

14

16

918

18

2

2

3

Page 119: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-49

60" Deck

INDEX NO. PART NO. QTY.

RS PULLEY COVERCS .250-20 X .75 HX FLGBELT, B-SECTIONLS PULLEY COVERDISCHARGE CHUTEDISCHARGE CHUTE PINCHUTE SPRINGNT .375-16 NL G5PULLER PINRS PULLERLS PULLERNT .500-13 NL G5FW .531 X 1.063 X .175PLASTIC WHEEL ASSEMBLYBLADE, 20.50"-L-F-CWBLADE, F20.50"-L-F-CWBLADE, 20.50"-CAT-F-CWBLADE, 20.50"-MUL-F-CWBLADE, 20.50"-GAT-F-CWBLADE, F20.50"-H-F-CWCW .631 X 2.25 X .187 PNTCS .625-11 X 1.25 HX G5 ZHP .125 X 2.375 ZNCS .500-13 X 4.25 HX G5PLASTIC WHEELNT .500-13 HX JAM ZNYC

NOTES:

1. Torque to 118 ft-lbs.2. Torque to 8 ft-lbs on these 4 self-tapping screws.3. Do not torque; the discharge chute must pivot freely.

DESCRIPTION

1 604722 12 604324 43 604711 14 604723 15 604609 16 604346 17 604331 18 086660 19 604658 2

10 117877 111 117878 112 781567 313 767962 514 788166 315 793794 3

600901 3793935 3794214 3794230 3794685 3

16 782474 317 781872 318 017301 219 781708 120 031997 121 053199 1

Page 120: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-50 119297EX_0117

Deck Lift & Mounting Hardware—42"

1

2

56

3

3

7

11

3

14

15

16

10

18

4

8

10

23

5

317

113

14 15

16

8

9

9

2021

19

12

12

13

13 10

RIGHT SIDEOF MOWER

Page 121: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-51

Deck Lift & Mounting Hardware—42"

INDEX NO. PART NO. QTY.

INDICATOR PINNT .375-16 HX G5 ZNYFW .379 X .813 X .063REAR DECK LIFT BARPIVOT SPACER BUSHINGLIFT PEDAL LINKCS .375-16 X 1.12 HX G5 ZNT .375-16 FLK G5PIVOT BLOCKCS .375-16 X .75 HX FLKNT .375-16 HX G5 NLFW .41 X .94 X .25 UHMWE CLIP .625 X .480 X .042 ZPIVOTDECK LIFT LINKCE .375 X 2.00 W/BALECS .375-16 X 1.00 HX G5FRONT DECK LIFT BARCS .500-13 X 1.50 HX G5PIVOT SPACER BUSHINGNT .500-13 HX G8 ZY NL

NOTES:

DESCRIPTION

1 118020 12 054502 23 767954 84 190168 15 601839 26 118016 17 005132 18 016899 89 116151 410 029629 811 086660 412 605114 413 791673 814 118018 415 604579 416 604803 417 036244 118 190167 119 074252 220 606250 221 781567 2

Page 122: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-52 119297EX_0117

Deck Lift & Mounting Hardware—42"

18

4

8 9

11

12

14

15

16

10

8

9

10

113

14

15

16

12

3

13

13

8

8

LEFT SIDEOF MOWER

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119297EX_0117 6-53

This page intentionally left blank.

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6-54 119297EX_0117

Deck Lift & Mounting Hardware—48"/54"/60"

1

4

67

5

58

9

5

1012

13

15 17

3

2

15

45

6

51695

10

12

13

214

14

1819

20

2119

22

2211

11

RIGHT SIDEOF MOWER

Page 125: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 6-55

Deck Lift & Mounting Hardware—48"/54"/60"

INDEX NO. PART NO. QTY.

INDICATOR PINNT .375-16 HX G5 FLKREAR DECK LIFT BARNT .375-16 HX G5 ZNYFW .379 X .813 X .063PIVOT SPACER BUSHINGLIFT PEDAL LINKCS .375-16 X 1.12 HX G5 ZNT .375-16 HX G5 NLPIVOTE CLIP .625 X .480 X .042 ZDECK LIFT LINKCE .375 X 2.00 W/BALEPIVOT BLOCKCS .375-16 X .75 HX FLKCS .375-16 X 1.00 HX G5FRONT DECK LIFT BARPIVOT SPACER BUSHINGFW .531 X 1.063 X .175NT .500-13 HX G8 ZY NLCS .500-13 X 1.50 HX G5FW .41 X .94 X .25 UHMW

NOTES:

DESCRIPTION

1 118020 12 016899 83 190168 14 054502 25 767954 86 601839 27 118016 18 005132 19 086660 4

10 118018 411 791673 812 604579 413 604803 414 116151 415 029629 816 036244 117 190167 118 604656 219 767962 420 781567 221 074252 222 605114 4

Page 126: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

6-56 119297EX_0117

Deck Lift & Mounting Hardware—48"/54"/60"

17

3

214

9

5

10

12

1315

2

14

15

95

1012

13

22

22

11

11

LEFT SIDEOF MOWER

Page 127: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 7-1

Section 7

Seat—42" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Seat—48"/54"/60" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Seat Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Page 128: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

7-2 119297EX_0117

Seat—42"

1413

1

2

4

7

6

11

11

1

5

3

2

8

9

10

12

12

3

Page 129: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 7-3

Seat—42"

INDEX NO. PART NO. QTY.

SEAT, SEAT KINGSEAT PAN (WITH DECALS)PUSH BUTTON MOUNTNT .375-16 HX G5 NLWIRE TIEFW .343 X .687 X .051/.080HCS .312-18 X 1.25 HX G5CS .375-16 X .75 HX FLKCOMPRESSION SPRING 1.25 X 4.00 X .188NT .375-16 HX G5 FLK CS .375-16 X 1.00 HX G5FW .406 X 1.00 X .12 HRD ZBATTERY WARNINGS DECALBELT ROUTING DECAL

NOTES:

1. Do not torque; the seat pan must pivot freely.2. Torque to 7 ft-lbs.3. When replacing the seat pan, order (2) washers, 712919.

DESCRIPTION

1 605009 12 552752 13 604307 14 086660 25 000331 16 768523 47 079186 48 029629 29 793851 2

10 016899 211 036244 212 712919 213 601815 114 602243 1

Page 130: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

7-4 119297EX_0117

Seat—48"/54"/60"

1

2

4

7

6

11

11

13 1

5

3

2

8

9

10

12

12

3

14

12

12

Page 131: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

119297EX_0117 7-5

Seat—48"/54"/60"

INDEX NO. PART NO. QTY.

SEAT, SEAT KINGSEAT PAN (WITH DECAL)PUSH BUTTON MOUNTNT .375-16 HX G5 NLWIRE TIEFW .343 X .687 X .051/.080HCS .312-18 X 1.25 HX G5CS .375-16 X .75 HX FLKCOMPRESSION SPRING 1.25 X 4.00 X .188NT .375-16 HX G5 FLK CS .375-16 X 1.00 HX G5FW .406 X 1.00 X .12 HRD ZBATTERY WARNINGS DECALBELT ROUTING DECAL

NOTES:

1. Do not torque; the seat pan must pivot freely.2. Torque to 7 ft-lbs.3. When replacing the seat pan, order (4) washers, 767954.

DESCRIPTION

1 605009 12 552752 13 604307 14 086660 25 000331 16 768523 47 079186 48 029629 29 793851 210 016899 211 036244 212 767954 413 601815 114 781419 1

Page 132: BIGDOG MOWER CO. ALPHA MP · mowers. This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used were current at the

7-6 119297EX_0117

Seat Service Parts

3

2

1

INDEX NO. PART NO. QTY.

ARMREST KITSEAT SWITCH

NOTES:

DESCRIPTION

1 119783 12 793315 1