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Product: TRACK-TYPE TRACTOR

Model: D8T TRACK-TYPE TRACTOR J8B

Configuration: D8T TRACK-TYPE TRACTOR J8B00001-UP (MACHINE) POWERED BY C15 Engine

Special InstructionInstallation of 8SU and 8U Bulldozer with Dual Tilt Cylinders{6050, 6060}

Media Number -REHS2312-04 Publication Date -31/08/2011 Date Updated -31/08/2011

i04535534

Installation of 8SU and 8U Bulldozer with Dual Tilt

Cylinders{6050, 6060}

SMCS - 6050; 6060

Track-Type Tractor:

D8R (S/N: 9EM2260-UP) D8T (S/N: J8B1-UP; MLN1-UP; FCT1-UP; KPZ1-UP)

Introduction

This Special Instruction provides the information that is necessary in order to install the lift cylinders. The instructions also include the proper procedure for installation of the 8SU and 8U Bulldozer with dual tilt cylinders.

Refer to the necessary parts lists in each section.

After assembly is completed, prepare the machine for service. Refer to the Operation and Maintenance Manual for proper machine preparation.

Do not perform any procedure that is outlined in this publication until you have read the information and you understand the information. Do not order any parts until you have read the information and you understand the information.

ReferenceService Manual, Parts Book, Operation and Maintenance Manual.

Do not attempt to assemble this machine until you read and you

understand the assembly instructions.

Improper assembly procedures could result in injury or death.

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NOTICE

Do not allow any dirt or foreign material to get into the hydraulic

system during assembly, connection of lines, when components are

filled with fluid, or during any maintenance operation.

Note: No oil or lubricant is recommended on new fasteners. When fasteners are reused after being used in the field, the fasteners should be cleaned and lightly oiled before assembly. Instructions are given when lubrication is required.

NOTICE

Maintain the oil in the hydraulic system at the correct level to prevent

pump cavitation.

NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair

of the product. Be prepared to collect the fluid with suitable containers

before opening any compartment or disassembling any component

containing fluids.

Refer to Special Publication, NENG2500, "Dealer Service Tool

Catalog" for tools and supplies suitable to collect and contain fluids on

Cat products.

Dispose of all fluids according to local regulations and mandates.

Approximate Weights

NOTICE

When a hoist is used to lift any part or assembly, stand clear of the area. Always make sure the hoist has the correct capacity.

Approximate weights of the components are shown in the chart which

follows.

Table 1



Weights For the D8T Bulldozer

Part Number Description Weights

255-8707 Universal Blade Gp 3254 kg (7174 lb)

237-4367 Semi-Universal Blade 2787 kg (6144 lb)

239-4224 Push ArmRH 448 kg (988 lb)

343-0920 Push Arm Gp RH (1)

448 kg (988 lb)

240-3395 Push ArmLH 429 kg (946 lb)

343-0915 Push Arm Gp LH (1)

429 kg (946 lb)

239-3340 Stabilizer Link Group 140 kg (309 lb)

347-3272 Tilt Cylinder Gp (Each)165 kg (364 lb)

250-5861 Bulldozer Lift Cylinder (Each) 132 kg (292 lb)

239-1497 Bulldozer Trunnion (Each)28 kg (62 lb)

( 1 ) Use this part number with S/N MLN and FCT

Shim Adjustment For The Push Arm Assembly

Illustration 1 g01084397

Remove all of the shims from push arm (1) .1.



Install push arm (1) and cap (2) on trunnion (3) without shims. Use the largest torque from the following list in order to tighten the bolts.

2.

5 percent of the specified torque◦

50 N·m (37 lb ft)◦

Maintain equal distance on both space (A) and space (B) of cap (2). Insert the maximum number of shims into spaces (A) and (B) .

Remove the shims and loosen the bolts that are on cap (2). Add one additional shim to the stacks of shims for each side. Reinsert shims into spaces (A) and (B). When possible, use an equal number of shims for spaces (A) and (B) .

3.

Note: The number of shims at space (A) must be within one of the number of shims at space (B). For example, if space (A) has eight shims, space (B) must have seven, eight, or nineshims.

Tighten the bolts that are on cap (2) to the proper torque.4.

The push arm should move freely on the trunnion. The specified minimum tolerance is 0.25 mm (0.010 inch).

5.

Note: Removal of one or more shims after a short time may be necessary. Wear can be caused by normal vibrations of the surface or variations in the thickness of the paint.

Installation of Lift Cylinders

Necessary Parts

227-6315 Cylinder Mounting Gp

Item Part Number Description Qty

1 6V-0273 Lip Seal 2

2 229-9744 Yoke 2

3 4T-4875 Pin 2

4 227-8406 Cap Assembly 4

5 3B-8489 Grease Fitting 2

6 7X-2568 Bolt (M20 x 2.5 x 180 mm

8

(1) 8E-6305 Plate (RH) 1

(1) 8E-6306 Plate (LH) 1

(1) 5P-1076Hard Washer (4 mm THK)

2

Table 2



(1) 8T-4183Bolt (M12 x 1.75 x 40 mm)

2

( 1 ) These parts are used for shipping purposes only. Refer to ""Shipping Instructions for Lift Cylinders" ".

336-3663 Cylinder Mounting Gp (1)


1 6V-0273 Lip Seal 2

2 365-9378 Yoke 2

3 4T-4875 Pin 2

4 365-9399 Cap Assembly 4

5 3B-8489 Grease Fitting 2

6 7X-2568 Bolt (M20 x 2.5 x 180 mm

8

(2) 8E-6305 Plate (RH) 1

(2) 8E-6306 Plate (LH) 1

(2) 5P-1076Hard Washer (4 mm THK)

2

(2) 8T-4183Bolt (M12 x 1.75 x 40 mm)

2

Table 3

( 1 )Used on D8T S/N J8B, MLN, FCT, KPZ

( 2 ) These parts are used for shipping purposes only. Refer to ""Shipping Instructions for Lift Cylinders" ".

237-7362 Lift Cylinder and Lines Group LH (1)

237-7363 Lift Cylinder and Lines Group RH (1)

338-8657 Lift Cylinder and Lines Group LH (2)

338-8656 Lift Cylinder and Lines Group RH (2)


7 368-6402 (1) Plate As 2

353-5524 (2) Plate As 2

8 108-6981 (1) Hose As 2

336-3574 (2) Hose As 2

9 108-6982 (1) Hose As 2

336-3575 (2) Hose As 2

10 148-8323 Connector Gp 2

Table 4



11 153-6251 Connector Assembly 2

12 238-9612 Bracket As 2

13 238-9807 Tube As 1

239-0221 Tube As 1

14 250-5861 Lift Cylinder Group 2

15 8E-6304 Clip (3) 2

16 4J-0520 O-Ring Seal (1) 6

17 6V-8149 Nut (M12 x 1.75) (3) 2

18 7X-7729 Washer (3 mm THK) 12

19 8C-3206 Half Flange 4

20 8E-6303 Clip (3) 2

21 8T-4121 Hard Washer (2.5 mm THK) 8

22 8T-4136 (1) Bolt (M10 x 1.5 x 25 mm) 4

8T-4195 (2) Bolt (M10 x 1.5 x 25 mm) 4

238T-4137 (1) Bolt (M10 x 1.5 x 20 mm) 8

8T-4136 (2) Bolt (M10 x 1.5 x 20 mm) 8

24 8T-4186 Bolt 4

25 8T-4194 Bolt (3) (M12 x 1.75 x 50 mm) 2

26 8T-4196 Bolt (M10 x 1.5 x 35 mm) 4

27 8T-4223 Bolt (3 mm THK) (3) 4 (1)

8 (2)

28 (3) 7G-5984 Clip (2) 2

29 (3) 7G-5985 Clip (2) 2

30 (3) 7G-5986 Grommet (2) 2

31 (3) 8T-4139 Bolt (2) 4

( 1 ) Use for S/N (9EM, J8B, KPZ)

( 2 ) Use for S/N (MLN, FCT)

( 3 ) This component is not shown.

Installation Procedure for the Lift Cylinder Mounting Group




Note: Remove the shipping covers and plugs from the radiator guard housing.

Note: Clean all mating surfaces for parts prior to installation. Remove paint from the surfaces, if necessary.

Lubricate seal (1) with multipurpose type grease. Install seal (1) in the radiator guard housing with the lips to the outside.

1.

Pack the bearing bores for the lift cylinder mounting group with multipurpose type grease.2.

Install yoke (2) in the radiator guard housing. Remove cover (D) and bolts (C) and install pin (3) in order to lock yoke (2) in place. Replace cover (D) and bolts (C) after pin (3) is installed.

3.

Install grease fitting (5) in the radiator guard housing and add multipurpose grease, if necessary.

4.

Installation of the Lift Cylinders and Lines Group




Note: Clean the bearing and the bore in the cap and the cylinder trunnion.

Note: Clean mating surfaces of the parts prior to installation. Remove paint from the surfaces, if necessary.

Install cap assemblies (4) on the trunnions of lift cylinder group (14) .1.

Mount lift cylinder group (14) and cap assemblies (4) with four bolts (6). Tighten bolts (6) to a torque of 530 ± 70 N (120 ± 20 lb).

2.

Repeat steps 1 and 2 for the other side of the machine.3.



Illustration 4

Remove the shipping covers and the seals from the manifold on the radiator guard housing and lift cylinder groups (14) .

4.

Connect the ends of hose assemblies (8) and (9) to the manifold on the radiator guard housing with two seals (16), four flanges, eight washers, and eight bolts.

5.

Use connector assembly (11) in order to attach tube assembly (13) to the lift cylinder rodend. Use two half flanges (19), two bolts (24), two bolts (26), four washers (21), and bracket (12) in order to attach hose (9) to the head end of tube assembly (13) .

6.

Use connector group (10) in order to attach hose (8) to the head end of the lift cylinder. Use four bolts (23), and four washers (18) in order to attach plate assembly (7) to the top of the lift cylinder. Use two bolts (22) and two washers (21) in order to attach bracket (12) to plate assembly (7) .

7.

Repeat Steps 4 through 7 for the other lift cylinder.8.

Shipping Instructions for Lift Cylinders

Necessary Parts

Table 5



Shipping Parts for the Lift Cylinders


1 8E-6305 Plate (RH) (1) 1

2 8E-6306 Plate (LH) (1) 1

3 5P-1076 Hard Washer (1) (4 mm THK) 2

4 8T-4183 Bolt (1) (M12 x 1.75 x 40 mm) 2

5 8E-6303 Clip (2) 2

6 8E-6304 Clip (2) 2

7 8T-4223 Washer (2) (3 mm THK) 6 (3)

8 6V-8149 Nut (2) (M12 x 1.75) 2

9 8T-4194 Bolt (2) (M12 x 1.75 x 50 mm) 2

10 8T-4223 Hard Washer (2) (3 mm THK) 8

( 1 ) This component is part of 336-3663 Cylinder Mounting Gp .( 2 ) This component is part of 338-8657 Lift Cylinder and Lines Group and 338-8656 Lift Cylinder and Lines

Group .

( 3 ) The six washers are for installation between the clips (5) and (6) .

Installation Procedure

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Reposition plate (1) and (2) to the outside of the radiator guard housing. Install washer (3) and bolt (4) .

1.

Assemble clips (5) and (6) to the lift cylinder. Attach the clips to plate (1) with two washers (7), bolt (9), and nut (8) .

2.

Use a suitable strap to tie the cylinder rod in place.3.

Repeat Steps 1 through 3 for the other lift cylinder.4.

Note: Replace three washers (7) in each clip when the shipping bracket is not being used. Refer to section (A-A) .

Installation of Trunnions

Necessary Parts

237-4370 Bulldozer Trunnion Gp


1 239-1497 Trunnion 2

2 8T-4122 Washer (3.5 mm THK) 32

3 8C-6362 Bolt (5/8 - 11 by 3 1/2 inch long) 32

Table 6



Remove shipping cover (A) from frame assembly (B) .1.




Section view of frame assembly (B)

Place a suitable container below O-Ring plug (E) in order to contain any fluid that drains.2.

Remove O-Ring plug (E) .3.

Tap seal plate (C) in position against retainer plate (D) .4.

Note: Step 3 and 4 eliminates the hydraulic pressure that forms between seal plate (C) and retainer plate (D). Also, this step allows adequate clearance between trunnion assembly (1) and seal plate (C) .

Allow the fluid to drain. Properly collect and dispose of the fluid.5.

Note: Make sure that the existing O-Ring seal is correctly positioned on O-Ring plug (E) .

Install O-Ring plug (E) in seal plate (C) .6.




Install guide pins (F) in the roller frame (B). The guide pins (F) should have a nominal size of 5/8 inch, 11 threads per inch, and a length that is within the range 178 to 191 mm (7.0 to 7.5 inch).

7.

Slide the trunnion assembly onto the guide pins (F) until the base of the assembly is against the track roller frame.

8.


Install trunnion assembly (1) with 16 bolts (3) and 16 washers (2). 9.

Tighten bolts (3) to a torque of 240 ± 40 N·m (175 ± 30 lb ft).10.

Repeat Steps 1 through 10 for the other side of the machine.11.

Assembly of Bulldozer

245-3562 Universal Blade Group or 237-4366 Semi-Universal Blade Group


1 8E-6758 Connector 2

Table 7



2 4T-7534 Pin 2

3 1U-2472 Pin 2

4 6J-5179 Retainer 4

5 7X-2574 Bolt (M24 x 3 x 45 mm) 8

Necessary Parts for use with S/N (9EM, J8B, KPZ)

237-9236 Stabilizer Push Arm Gp (1)


6 240-3395 Push Arm (LH) 1

239-4224 Push Arm (RH) 1

6a 9W-7602 Shim (2) 52

6b 193-3063 Bearing Cap 2

6c 195-6283 Square Nut 4

6d 3E-9850 Bolt (M30 x 3.5)

4

6e 9X-8258 Washer 4

7 4T-7534 Pin 2


9 7X-2574 Bolt (M24 x 3 x 45 mm) 8

10 3G-7016 Pin 2

Table 8

( 1 )The 237-9236 Stabilizer Push Arm Gp is part of the 237-9234 Dual Tilt Cylinder Arrangement .

( 2 ) Use shims, as required.

239-3340 Stabilizer Link Gp (1)


11 6I-8675 Shim 52 (1)

12 160-6307 Bearing Cap 2

13 239-3341 Link 1

14 7X-2578 Bolt (M24 x 3 x 200 mm) 8

15 8T-4001 Nut (M24 x 3) 8

Table 9

( 1 ) The 239-3340 Stabilizer Link Gp is part of the 237-9236 Stabilizer Push Arm Gp .



( 1 ) Use the shims, as required.

237-9234 Dual Tilt Cylinder Arrangement


16 347-3272 Tilt Cylinder Gp 2

Table 10

237-9235 Tilt Cylinder Lines Gp (1)


17 179-7210 Guard 1


19 7X-2559 Bolt (M16 x 2 x 160 mm) 4

20 239-3344 Tube As 2

21 8T-4778 Locknut (M16 x 2 mm) 4

22 129-5082 Block 6

23 183-7205 Angle 1

24 183-7206 Angle 1

25 6I-8516 Angle 1

26 108-1226 Tube As 2

27 108-1225 Tube As 2

28 8E-3600 Plate 6

29 183-5408 Hose As 2


31 239-7071 Hose As 2

32 239-7072 Hose As 2

33 239-7074 Hose As 2

34 159-0867 Guard 1

40 4T-3981 Clip 6


42 8T-4136 Bolt (M10 x 1.5 x 25 mm) 12

43 4J-0520 O-Ring Seal 2

Table 11




45 8T-4196 Bolt (M10 x 1.5 x 35 mm) 64

46 7W-3447 Spacer (10.2 mm THK) 8

47 8T-4182 Bolt (M10 x 1.5 x 45 mm) 8

48 297-4986 Hose As 2

49 252-6517 Block 3

50 7D-4108 Clamp 3

51 239-7078 Guard 1

52 179-7209 Tube As 2

53 241-7877 Tube As 2


55 5P-1076 Hard Washer (4 mm THK) 11

56 8T-4139 Bolt (M12 x 1.75 x 30 mm) 11

57 9X-2027 Washer (3 mm THK) 8

58 8T-4185 Bolt (M10 x 1.5 x 50 mm) 8

59 8T-4223 Hard Washer (3 mm THK) 3

60 8T-6868 Bolt (M12 x 1.75 x 80 mm) 3

( 1 ) The 237-9235 Tilt Cylinder Lines Gp is part of the 237-9234 Dual Tilt Cylinder Arrangement .

Necessary Parts for use with S/N (MLN, FCT)

343-7191 Installation Ar


1 8E-6758 Connector 2

2 4T-7534 Pin 2

3 1U-2472 Pin 2


5 7X-2574 Bolt (M24 x 3 x 45 mm) 8

Table 12

343-0916 Push Arm Gp


Table 13



6343-0915

343-0920 Push Arm (LH) Push Arm (RH)

1 1

7 4T-7534 Pin 2


9a 7X-2573 Bolt (M24 x 3 x 45 mm) 2

9b 7X-2574 Bolt (M24 x 3 x 45 mm) 6

10a 3G-7016 Pin 1

10b 239-9940 Pin 1

239-3340 Stabilizer Link Gp (1)


11 6I-8675 Shim 52 (2)

12 160-6307 Bearing Cap 2

13 239-3341 Link 1

14 7X-2578 Bolt (M24 x 3 x 200 mm) 8

15 8T-4001 Nut (M24 x 3) 8

Table 14

( 1 ) The 239-3340 Stabilizer Link Gp is part of the 343-0916 Stabilizer Push Arm Gp .

( 2 ) Use the shims, as required.

345-9088 Dual Tilt Cylinder Arrangement


16 347-3272 Tilt Cylinder Gp 2

Table 15

237-9235 Tilt Cylinder Lines Gp (1)


17 179-7210 Guard 1


19 7X-2559 Bolt (M16 x 2 x 160 mm) 4

20 239-3344 Tube As 2

21 8T-4778 Locknut (M16 x 2 mm) 4

22 129-5082 Block 6

Table 16



23 183-7205 Angle 1

24 183-7206 Angle 1

25 6I-8516 Angle 1

26 108-1226 Tube As 2

27 108-1225 Tube As 2

28 8E-3600 Plate 6

29 183-5408 Hose As 2


31 239-7071 Hose As 2

32 239-7072 Hose As 2

33 239-7074 Hose As 2

34 159-0867 Guard 1

40 4T-3981 Clip 6


42 8T-4136 Bolt (M10 x 1.5 x 25 mm) 12



45 8T-4196 Bolt (M10 x 1.5 x 35 mm) 64

46 7W-3447 Spacer (10.2 mm THK) 8

47 8T-4182 Bolt (M10 x 1.5 x 45 mm) 8

48 297-4986 Hose As 2

49 252-6517 Block 3

50 7D-4108 Clamp 3

51 239-7078 Guard 1

52 179-7209 Tube As 2

53 241-7877 Tube As 2


55 5P-1076 Hard Washer (4 mm THK) 11

56 8T-4139 Bolt (M12 x 1.75 x 30 mm) 11

57 9X-2027 Washer (3 mm THK) 8



58 8T-4185 Bolt (M10 x 1.5 x 50 mm) 8

59 8T-4223 Hard Washer (3 mm THK) 3

60 8T-6868 Bolt (M12 x 1.75 x 80 mm) 3

( 1 ) The 237-9235 Tilt Cylinder Lines Gp is part of the 237-9234 Dual Tilt Cylinder Arrangement .

Assembly Procedure

Note: All of the hardware is metric.

Note: Clean all mating surfaces between parts prior to installation. Remove paint from the surfaces, if necessary.


Raise and block the bulldozer blade in an upright position.1.




Weld plates (28) to each end of angles (23), (24), and (25). Weld the plates with a 6 mm fillet weld on all outside edges.

2.

Note: For all welding, use the welding procedures for mild steel.

Illustration 13

(A) 749 ± 6 mm (29.50 ± 0.25 inch)

(B) 511 ± 6 mm (20.10 ± 0.25 inch)

(C) 739 ± 6 mm (29.10 ± 0.25 inch)

(D) 1210 ± 6 mm (47.65 ± 0.25 inch)

(E) 555 ± 6 mm (21.85 ± 0.25 inch)

(F) 1108 ± 6 mm (43.60 ± 0.25 inch)

(G) 647 ± 6 mm (25.45 ± 0.25 inch)

(J) 222 ± 6 mm (8.75 ± 0.25 inch)



(K) 71.5 ± 6 mm (2.82 ± 0.25 inch)


(L) 170 ± 6 mm (6.750 ± 0.250 inch)

(M) 871 ± 6 mm (34.250 ± 0.250 inch)

(N) 240 ± 6 mm (9.500 ± 0.250 inch)

Weld angles (23), (24), and (25) to the back of the blade at the dimensions that are shown in figures 13 and 14. Weld the angles to the blade with a 5 mm fillet weld on the top and the bottom and a 6 mm fillet weld along each plate.

3.

Weld blocks (22) to the back of the blade at the dimensions that are shown in figures 13 and 14. Weld the blocks with a 5 mm fillet weld on both vertical sides.

4.



Illustration 15

(P) 125 ± 6 mm (4.90 ± 0.25 inch)

Preassemble tubes (27) and (26) before installing the tubes on the blade. Use four halfflanges (44), eight spacers (46), eight bolts (47), and two O-ring seals (43) to assemble the tube assemblies.

5.

Place the assembled tubes in the blocks and install the tubes to the blade with clips (40), bolts (42), and washers (41). The edge of the flanges should be dimension (P) from the center line of the blade.

6.





Correct orientation for the stabilizer link

Install stabilizer link (Q) to the blade assembly. Refer to Table 9 in order to see the components of stabilizer link (Q). Use shims (11), as needed. Refer to ""Shim Adjustment For The Push Arm Assembly" " for the proper shimming procedure. Tighten the bolts to a torque of 900 ± 100 N·m (665 ± 75 lb ft).

7.

Note: Be sure to attach stabilizer link (Q) in the correct orientation. Refer to illustration 17. With the ends (section (A-A) ) of link (Q) in the vertical position, the bosses should angle toward the blade.




Use pin (7), retainer (8), and bolts (9) to install connector (1) to the left push arm. Tighten bolts (9) to a torque of 900 ± 100 N·m (665 ± 75 lb ft).

8.


Use an appropriate pry bar to slide connector (1) into the left side of the blade.9.


Install the left push arm to the blade with pin (2) , retainer (4), and two bolts (5). Tighten bolts (5) to a torque of 900 ± 100 N·m (665 ± 75 lb ft).

10.




Use pin (7), retainer (8), and two bolts (9) to install connector (1) to the right push arm. Tighten bolts (9) to a torque of 900 ± 100 N·m (665 ± 75 lb ft).

11.


Install the right push arm to the blade by using pin (2), retainer (4), and two bolts (5). Tighten bolts (5) to a torque of 900 ± 100 N·m (665 ± 75 lb ft).

12.




Position tube assembly (52) on left tilt cylinder (16). Fasten one end of the tube assembly to the tilt cylinder by using four washers (57), four bolts (58), and one O-ring seal (54). Install one hard washer (55) and one bolt (56) in the bracket on the tube assembly. Tighten the bolt.

13.

Install hose assemblies (29) to left tilt cylinder (16) by using four hard washers (41), two half flanges (44), four bolts (45), and two O-ring seals (54) for each hose assembly. Install two O-ring seals (54) on the other end of hose assemblies (29) .

14.

Note: Cylinder (11) contains oil. Make sure that the ends of hose assemblies (29) are elevated in order to prevent oil from spilling.


Position tube assembly (52) on right tilt cylinder (16). Fasten one end of the tube assembly to the tilt cylinder by using four washers (57), four bolts (58), and one O-ring seal (54). Install one hard washer (55) and one bolt (56) in the bracket on the tube assembly. Tighten the bolt.

15.

Install two hose assemblies (48) to tilt cylinder (16) by using four hard washers (41), two half flanges (44), four bolts (45), and one O-ring seal (54) for each hose assembly. Install one O-ring seal (54) to the other end of hose assembly (48) .

16.




Use a suitable lifting device to position left tilt cylinder (16) in place. Orient the rod assembly so the grease fitting faces upward. Make sure that you catch the hydraulic oil in the hose assemblies with a suitable container.

17.

Connect left tilt cylinder (16) to the blade by using pin (3), retainer (4), and two bolts (5). Tighten the bolts to a torque of 900 ± 100 N·m (660 ± 75 lb ft).

18.


Attach left tilt cylinder (16) to the left push arm. Use pin (10), retainer (8), and two bolts (9) to attach the cylinder. Tighten the bolts to a torque of 900 ± 100 N·m (660 ± 75 lb ft).

19.

Repeat Step 17 through Step 19 for the right tilt cylinder (not shown).20.


Position two tube assemblies (20) and two tube assemblies (53) on the tag link.21.

Position three blocks (49) between the tube assemblies. Position three clamps (50) on top of two tube assemblies (53) .

22.

Install three hard washers (59) and three bolts (60) through the clamps and the blocks. Tighten the bolts.

23.




Install four hard washers (41), two half flanges (44), four bolts (45), and one O-ring seal (54) on each tube assembly. Do not tighten the bolts at this time.

24.


Position tube assemblies (20) to dimension (C). See Illustration 29 and Table 17. 25.

Dimensions

Item Dimension

A 30°

B 30°

Table 17



C 355 ± 5 mm (13.98 ± 0.20 inch)


Connect tilt cylinder hose assemblies (48) to the ends of bottom tube assemblies (20). Refer to Table 17 and Illustration 29 for correct dimensions for hoses (48). Make sure that you install an O-ring seal in the end of hose assemblies (48). Refer to Table 18 and Illustration 30 for positioning the hose assemblies in the half flanges on tilt cylinder (16). Tighten the bolts to a torque of 60 ± 12 N·m (44 ± 9 lb ft).

26.

Make sure that you orient the hose assemblies correctly. The hose for the rod end of the cylinder should attach to the tube that is closest to the blade. The hose for the head end of the cylinder should attach to the tube that is closest to the machine. Refer to Illustration 31.

Dimensions

Item Dimension

D 25°

E 25°

Table 18





Position hose assemblies (29) and (48) in the half flanges on tubes (26) and (20). Make sure that there is an O-ring seal in the end of the hose assemblies. Tighten the bolts to a torque of 60 ± 12 N·m (44 ± 9 lb ft).

27.


Install O-ring seals (54) in the end of two hose assemblies (33). Attach hose assemblies (33) to tube assemblies (27) and (53). Tighten the bolts to a torque of 60 ± 12 N·m (44 ± 9 lb ft).

28.



Note: Make sure that you orient the hose assemblies correctly. The hose that is closest to the blade should connect to the upper tube assembly. The hose that is closest to the machineshould connect to the lower tube assembly.


Position guard (34) on left tilt cylinder (16) .29.

Install two bolts (19), four hard washers (18), and two locknuts (21). Tighten the nuts (21) to a torque of 125 ± 20 N·m (1106.34375 ± 177.01500 lb in).

30.


Position guard (17) on right tilt cylinder (16) .31.

Install two bolts (19), four hard washers (18), and two locknuts (21). Tighten the nuts (21) to a torque of 125 ± 20 N·m (1106.34375 ± 177.01500 lb in)..

32.




Install guard (51) to the stabilizer link with ten hard washers (55) and ten bolts (56) .33.


Block each push arm to the height of the trunnions on the machine.1.

Move the machine into the push arms.2.


Install cap (6b), bolts (6d), and nuts (6c) on push arm (6) around the trunnion. Use shims (6a), as needed. Tighten bolts (6d) to a torque of 1800 ± 200 N·m (1330 ± 150 lb ft). Refer to ""Shim Adjustment For The Push Arm Assembly" " for the proper shimming procedure.

3.

Repeat step 3 for the opposite side of the machine.4.




Install the right lift cylinder to the bulldozer blade. Use shims, as needed. Tighten the bolts on the cap to a torque of 900 ± 100 N·m (660 ± 75 lb ft). Refer to ""Shim Adjustment For The Push Arm Assembly" " for the proper shimming procedure.

5.

Repeat Step 5 for the other lift cylinder.6.


Install stabilizer link (15) to the trunnion (E) on the front of the machine. Installation requires cap (14), bolts (11), and nuts (12). Use only the number of shims (13) that is needed. Tighten bolts (11) on cap (14) to a torque of 900 ± 100 N·m (660 ± 75 lb ft). Refer to ""Shim Adjustment For The Push Arm Assembly" " for the proper shimming procedure.

7.




(A) Head End of Right Hand Tilt Cylinder

(B) Rod End of Right Hand Tilt Cylinder

(C) Head End of Left Hand Tilt Cylinder

(D) Rod End of Left Hand Tilt Cylinder


(A) Head End of Right Hand Tilt Cylinder

(B) Rod End of Right Hand Tilt Cylinder

(C) Head End of Left Hand Tilt Cylinder

(D) Rod End of Left Hand Tilt Cylinder



Install two hose assemblies (31) and two hose assemblies (32) to the manifold. Use twoflanges, four bolts, four washers, and one O-ring seal for each hose assembly. Tighten the bolts to a torque of 60 ± 12 N·m (44 ± 9 lb ft).

8.

Note: Make sure that O-ring seals have been installed in the ends of the hoses prior to installation.

Note: Be sure to orient the hose assemblies correctly. Refer to illustrations 40 and 41 for the proper orientation.

Note: The items that are not numbered are part of the lines group for the tilt cylinder.

Check the oil in the hydraulic tank and fill the tank, if necessary. Cycle the cylinders to full stroke in both directions several times. This procedure will purge the air from the lines and cylinders. Refill the tank to the full mark with the blade on the ground.

9.

After assembly is complete prepare the machine for use. Refer to Operation and Maintenance Manual.

10.

Install Handle Assembly (MLN and FCT ONLY)

Parts Needed In Order To Install Handle Assembly


1 355-3498 Handhold As 1

2 343-0924 Plate As 1

3 8T-4185 Bolt 6

4 7X-7729 Washer 24

5 8T-4133 Nut 12

6 8T-5005 Bolt 6

7 342-8165 Handhold As 1

8 343-0924 Plate As 1

Table 19



Illustration 42




LH side handhold assembly

Install handhold assembly (1) to plate assembly (2) with three bolts (3), six washers (4), and three nuts (5) .

1.

Install handhold assembly (1) and plate assembly (2) to the push arm with three bolts (6), six washers (4) and three nuts (5) .

2.




RH side handhold assembly

Install handhold assembly (7) to plate assembly (8) with three bolts (3), six washers (4), and three nuts (5) .

3.

Install handhold assembly (7) and plate assembly (8) to the push arm with three bolts (6), six washers (4) and three nuts (5) .

4.

Standard Torque for Fasteners

Nuts and Bolts

Thread Size Standard Torque (1)

Table 20



Metric Inch

M6 12 ± 3 N·m (9 ± 2 lb ft)

1/4 12 ± 3 N·m (9 ± 2 lb ft)

5/16 25 ± 6 N·m (18 ± 4 lb ft)

M8 28 ± 7 N·m (21 ± 5 lb ft)

3/8 47 ± 9 N·m (35 ± 7 lb ft)

M10 55 ± 10 N·m (41 ± 7 lb ft)

7/16 70 ± 15 N·m (50 ± 11 lb ft)

M12 100 ± 20 N·m (75 ± 15 lb ft)

1/2 105 ± 20 N·m (75 ± 15 lb ft)

M14 160 ± 30 N·m (120 ± 22 lb ft)

9/16 160 ± 30 N·m (120 ± 22 lb ft)

5/8 215 ± 40 N·m (160 ± 30 lb ft)

M16 240 ± 40 N·m (175 ± 30 lb ft)

3/4 370 ± 50 N·m (275 ± 37 lb ft)

M20 460 ± 60 N·m (340 ± 44 lb ft)

7/8 620 ± 80 N·m (460 ± 60 lb ft)

M24 800 ± 100 N·m (590 ± 75 lb ft)

1 900 ± 100 N·m (660 ± 75 lb ft)

1 1/8 1300 ± 150 N·m (960 ± 110 lb ft)



M30 1600 ± 200 N·m (1180 ± 150 lb ft)

1 1/4 1800 ± 200 N·m (1320 ± 150 lb ft)

1 3/8 2400 ± 300 N·m (1780 ± 220 lb ft)

M36 2700 ± 300 N·m (2000 ± 220 lb ft)

1 1/2 3100 ± 350 N·m (2280 ± 260 lb ft)

( 1 ) Refer to Specifications, SENR3130, "Torque Specifications" or the topic "Torque Specifications" in the

Operation and Maintenance Manual of your machine for additional information.

Copyright 1993 - 2012 Caterpillar Inc.

All Rights Reserved.

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Sat Jul 14 08:56:33 CDT 2012



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