guide_2_2e
TRANSCRIPT
GROUP 2
ENGINE TOOLS
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-1
� 2-2 2-2 �
Purpose :
Intended to measure engine piston compression pressure.
795-502-1205
Weight : 14.5 kg
COMPRESSION GAUGE
Component parts
No. Part No.Tool
description
All
mode
ls3D
68E
-3
3D
72, 7
5, 84
-11D
75-1
, 1
D8
4-1
3D
78
84-2
, 4D
94E
-21A
92-1
94-1
2D
94-2
, 4
D9
4-2
, 4
D95
L4D
95W
, 4D
13
0-1
95-1
102
105
-1, 2,
3
105
-5, 11
0107
E-1
SA
6D
10
8
114
E-2
114
E-3
120
-11, 1
30-1
125
125
E-3
125
E-5
140
-1140
E-3
140
E-5
155
-4
170
-1 (
6D
, 8V
, 12
V )
170
-1 (
16V
)170
E-3
(H
PI)
170
E-5
Cum
min
s 7
43
Cum
min
s 8
55
Cum
min
s K
T1
150
Remarks
1 795-502-1590 Gauge ass'y 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1a 795-502-1210 • Gauge • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 0-7 MPa
1b 795-502-1220 • Hose • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Length 390mm
1c 795-502-1230 • Valve • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • With a reset button
2 795-502-1240 Adapter 1 1
3 795-502-1250 Adapter 1 1
4 795-502-1260 Adapter 1 1
5 795-502-1270 Adapter 1 1
6 795-502-1283 Case 1
7 795-502-1291 Adapter 1 1
8 795-502-1310 Adapter 1 1
9 795-502-1320 Adapter 1 1
10 795-502-1330 Adapter 1 1
11 795-502-1340 Adapter 1 1
12 795-502-1350 Adapter 1 1 6D, 8V, 12V
13 795-502-1360 Adapter 1 1
14 795-502-1370 Adapter 1 1 direct injection type
15 795-502-1380 Adapter 1 1 squish chamber type
16 795-502-1500 Adapter ass'y 1 1
16a 795-502-1510 • Adapter • •
16b 795-502-1520 • Plate • •
17 795-502-1530 Adapter ass'y 1 1
17a 795-502-1540 • Adapter • •
17b 795-502-1550 • Plate • •
18 795-101-1580 Adapter ass'y 1 1
18a 795-101-1560 • Adapter • •
18b 795-101-1571 • Joint • • 1
19 795-502-1610 Name plate 1
20 795-502-1560 Packing 1
21 795-502-1570 Packing 1
22 795-502-1580 Packing 1
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-2
� 2-2 2-2 �
How to use:
1) Remove the nozzle holder of the engine cylinder head and attach the adapter (4 — 10) applicable to themachine concerned.
2) Attach the hose (2), valve (3) and gauge (1) to the adapter.3) Push the reset button for the valve and adjust the gauge pointer to the zero position.4) While driving the engine from the starting motor, measure the piston compression pressure.
Example of use:
Applicable engine:
2D94-2, 4D94-2, 4D95L, 4D95W, 4D130-1Purpose:
Used to measure engine compression pressure.How to use:
Remove the glow plug of engine. Screw the adapter and set a gauge. Then, measure the compression pressure.Necessary tool:
795-502-1590 Gauge ass'y 1 pc.
ADAPTER
Weight: 0.14 kg
Component parts:
No. Part No. Part name Weight (kg)
1 790-553-1120 Adapter 0.055
2 790-553-1130 Adapter 0.084
3 790-553-1140 Packing 0.001
790-553-1110
(Continued from page 2-2-1 )
No. 23 to No. 45 parts are option
No. Part No.Tool
description
All
mo
de
ls
3D
68
E-3
3D
72
, 7
5,
84
-1
1D
75
-1,
1D
84
-1
3D
78
84
-2,
4D
94
E-2
1A
92
-1
94
-1
2D
94
-2,
4D
94
-2,
4D
95
L4
D9
5W
, 4
D1
30
-1
95
-1
10
2
10
5-1
, 2
, 3
10
5-5
, 1
10
10
7E
-1
SA
6D
10
8
11
4E
-2
11
4E
-3
12
0-1
1,
13
0-1
12
5
12
5E
-3
12
5E
-5
14
0-1
14
0E
-3
14
0E
-5
15
5-4
17
0-1
(6
D,
8V
, 1
2V
)
17
0-1
(1
6V
)
17
0E
-3 (
HP
I)
17
0E
-5
Cu
mm
ins
74
3
Cu
mm
ins
85
5
Cu
mm
ins
KT
11
50
Remarks
23 6217-71-6112 Gasket 1 1 1
24 6261-71-6150 Gasket 1 1 1
25 790-471-1090 Adapter 1 1 see page 2-2-3
26 790-471-1110 Plate 1 1 see page 2-2-3
27 790-472-1370 Adapter 1 1 see page 2-2-3
28 790-553-1110 Adapter 1 1 see page 2-2-2
29 790-553-1120 • Adapter • •
30 790-553-1130 • Adapter • 1 •
31 790-553-1140 • Packing • 1 •
32 795-111-1110 Adapter 1 1
33 795-111-1120 Adapter 1 1 see page 2-2-4
34 795-471-1310 Adapter 1 1
35 795-471-1330 Adapter 1 1
36 795-471-1410 Adapter 1 1
37 795-471-1420 Adapter 1 1
38 795-502-1390 Adapter 1 1 see page 2-2-3
39 795-502-1700 Adapter ass'y 1 1 see page 2-2-4
40 795-611-1210 Adapter 6 6
41 795-611-1220 Adapter 1 1
42 795-790-3610 Gauge 1 1 see page 2-2-4
43 795-790-3710 Tester 1 1 see page 2-2-4
44 795-790-4410 Adapter 1 1
45 795-790-6110 Adapter 1 1
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-3
� 2-2 2-2 �
Tool No. and applicable engine:
No. Tool No. Q'ty Weight (kg) Applicable engine
1 790-472-1370 1 0.2 SA6D108
2 790-471-1090 1 1.2 16V170
790-471-1090 ADAPTER
790-472-1370
Applicable model : 16V170
Purpose :
Used to measure engine compression pressure.
Necessary tool:
Applicable model : 1D75-1, 1D84-1Purpose :
Used when measuring the compression pressure ofengine.
How to use:
To use, see SERVICE TOOL GUIDE 2-2-1 and 2.
Necessary tool:
795-502-1590 Gauge ass'y 1 pc.790-553-1130 Adapter 1 pc.790-553-1140 Packing 1 pc.
Purpose :
Used to measure engine compression pressure.
Necessary tool :
795-502-1590 Gauge ass'y 1 pc.790-471-1110 Plate (16V170 only) 1 pc.
790-471-1110 PLATE
Weight : 0.7 kg
795-502-1390 ADAPTER
790-471-1090 Adapter 1 pc.795-502-1590 Gauge ass'y 1 pc.
Weight : 0.25 kg
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-4
� 2-2 2-2 �
Applicable model : 3D68E-3 engine
Purpose :
Used to measure Yanmar engine compressionpressure.
Necessary tool:
795-502-1590 Gauge ass'y 1 pc.
795-502-1700 ADAPTER ASS'Y 795-111-1120 ADAPTER
Weight : 0.3 kg Weight : 0.13 kg
Applicable model : 102 engine
Purpose :
Used to measure engine compression pressure.
Necessary tool :
795-502-1590 Gauge ass'y 1 pc.795-502-1760 Packing
Component parts:
No. Tool No. Part name Q'ty Weight (kg)
1 795-502-1710 Adapter 1 0.05
2 795-502-1720 Sleeve 1 0.05
3 795-502-1750 Packing 1 0.001
4 795-502-1740 Ring 1 0.001
5 795-502-1730 Joint 1 0.20
795-790-3710 TESTER
795-790-3610 GAUGE
Weight: 1.2 kg Weight: 0.8 kg
Applicable model : 114 engine
Purpose :
Used to measure engine compression pressure.
Necessary tool :
795-790-3610 Gauge 1 pc.
Applicable model : 114 engine
Purpose :
Used to measure 114 engine compression pres-sure.
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-5
� 2-2 2-2 �
BLOW-BY CHECKER
Weight: 5 kg
Example of use:
795-790-1900
and others
BLOW-BY TOOL
Purpose:
Used to measure the engine crankcase pressure.
Necessary tool:
795-790-1610 Mano meter
Purpose:
Used to measure engine blow-by pressure.* For details of how to operate, see the Operation
Manual.
Specifications:
1) Applicable engines: Komatsu, Cumminsengines(VTA1710, IH engine: Used option parts)
2) Pressure gauge: Chamber pressure gauge • Measuring range: 0 — 5 kPa (±0.2%) • Min. scale: 0.2 kPa3) Silicon tube: ø 5 × ø 6 × 4,000 mm4) Size: 415 × 300 × 60 mm (Using case)
795-790-1610 Manometer
Specifications:
• Measuring range: +15” to -15”• Hose inner dia. : 3/16”• Hose outer dia. : 5/16”• Hose length : 48”
With out mercury.
Tool No. and applicable engines
No. Tool No.Applicable
enginesRemarks
1 795-790-1900102
CUMMINS Part
No.: 3822470
2 795-790-1950 Made in Japan
3 795-790-3300 107, 114
and others
CUMMINS Part
No.: 3822566
4 799-201-1511 Made in Japan
799-201-1504
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-6
� 2-2 2-2 �
Option
799-201-1590
Weight: 0.3 kg
Applicable engines: V type engine
Purpose:
Used when measure V type engine blow-by pres-sure.
Specifications:
Pressure range: 0 - 10 kPaGraduation Min.: 0.2 kPaAccuracy: 1.0 class (JIS)Safety device: With over pressure preventing unit
Necessary tools:
799-201-1504 Blow-by checker 1 pc799-201-1511 Nozzle 2 pcs799-201-1450 Adapter 2 pcs
Component parts:
No. Part No. Tool
description
All
mo
de
l
2D
94
(S
)4,6
D8
5
(m
ark
ed
:{}
no
turb
o)
3D
94
,4D
94
,4D
10
5
(S
)6D
105
,6A
6D
11
0,6
D1
08
102
114
6D
12
5,S
4D
13
0
S(A
)6D
15
5,1
70
Cu
mm
ins N
743
Cu
mm
ins N
855
6D
14
0,
Cu
mm
ins N
TC
743
Cu
mm
ins N
T(A
)855
Cu
mm
ins K
T1
15
0
KT
115
0(5
60
)
VT
(A)1
710
Inte
r D
T2
68
,466
,414
Inte
r D
T8
17
Remarks
799-201-1511 Tool (body) 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
795-790-1900 Tool (body) 1 1 Option for 102
2 799-201-1541 Gauge 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 5 kPa
3 799-201-1571 Tube 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Cylicon tube 4 m
4 799-201-1530 Nut 1 1 1
5 799-201-1521 Adapter 1 1 1
6 799-201-1582 Case 1
7 799-201-1411 Adapter 1 1 1 1 1 1Diams. of joints:
14.5 mm, 16 mm
8 799-201-1460 Plug 3 {3} 3Blind plug for
N743 vent hole
9 799-201-1450 Adapter 1 1 1 1 1 1 1Diams. of joints:
19 mm, 26 mm
10 799-201-1640 Adapter 1 1
11 799-201-1430 Adapter 1 1
12 799-201-1440 Adapter 1 1
13 799-201-1630 Joint 1 1 1 1
14 799-201-1470 Hose 1 1 φ20 xφ26 x 60
15 799-201-1421 Hose 1 1 1 φ16 xφ22 x 60
16 799-201-1480 Hose 1 1 1 1 φ14 xφ20 x 60
17 799-201-1490 Hose 2 2 2 2 φ14 xφ20 x 1000
18 07281-00289 Clamp 2 1 2
19 07281-00259 Clamp 1 1 1 1 1 1 1 1
Oil filler mounting
adapter
For I.H engine
only
1
GAUGE
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-7
� 2-2 2-2 �
795-500-1001
795-500-2000
SPECIFIC GRAVITY TESTER
Weight: 0.3 kg
795-500-1000 Old tester can not be measuredantifreeze of a super coolant type (AF-ACL)For the details, refer to the Operation Manual fur-nished with the tester.
Purpose
1) Used to measure the specific gravity of the bat-tery liquid and the charging condition of the bat-tery.
2)Used to measure the freezing temperature whenanti-freeze is use.
Specifications:
How to use
Base line adjustment1) Put 1 — 2 drops of clean water (service water)
onto the prism face of the tester.2) Close the light intake plate and look into the eye-
piece with the tip of the tester directed at light.3) If the boundary line between blue and white devi-
ates from the water line, make them coincide byturning the base line adjusting screw A.
Measurement
1) Put 1 — 2 drops of a solution to be measuredonto the prism face using a sampler and read theposition of the boundary line by looking into theeyepiece.
�
�
795-500-1001 795-500-2000
Gravity of the
battery liquid
Reading
range1.100 ~ 1.300 1.00 ~ 1.30
Measurement
freezing
temperature
Reading
range
-5 ~ -50 °C - 8 ~ -50 °C
AF-PT, AF-ACLNON AMINEType of the anti-freeze
795-500-2010 Cover plate 795-500-2020 Pin
795-790-6800 LEAK TESTER
Applicable engines: 107E-1, 114E-3
Purpose
Used to block a single injector and high pressurefuel connector from the pressurized fuel. This toolhelps identify a failed injector when injector returnflow is excessive.
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-8
� 2-2 2-2 �
795-790-5200 ADAPTER KIT 795-790-5300 ADAPTER
CUMMINS Part number: 4918462
Applicable engines: 107E-1, 114E-3
Purpose
Used to check fuel pressure/restriction.
CUMMINS Part number: 3164044
Applicable engines: 107E-1, 114E-3
Purpose
Used to measure fuel pressure and detect air in thefuel system. Use with tool, part number 3164491(Pressure / Vacuum module).
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-9
� 2-2 2-2 �
795-790-4700 TESRER KIT
795-790-4800 HOSE KIT
795-790-5510 HOSE
795-790-6700 ADAPTER
CUMMINS Part number: 4918354
Applicable engines: 107E-1, 114E-3
Purpose
Used to check injector and HPCR pump drain flowIncluded 4918433 and 4918434
CUMMINS Part number: 4918295
Applicable engines: 107E-1, 114E-3
Purpose
Used to check fuel return flow flom 12 mm banjofitting connections.
CUMMINS Part number: 4918434
Applicable engines: 107E-1, 114E-3
Purpose
Used to check fuel return flow.
CUMMINS Part number: 3164618
Applicable engines: 107E-1, 114E-3
Purpose
Used to isolate drain flow flom the fuel drain lineswhere they connect to the fuel drain manifold. Al-lows fuel leakage measurment from the fuel pump,injector, or fuel rail pressure relief valve drain lines.This tool uses a special fitting to connect to the fuelreturn circuits to measure return flow flom the injec-tors and fuel pump (Cummins common rail fuel sys-tem)
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-10
� 2-2 2-2 �
795-790-4520 795-790-6500
795-790-4900
795-790-5110
795-790-4530
LEAK TESTER ADAPTER
ADAPTER KIT
SCREW
FITTING
CUMMINS Part number: 4918298
Applicable engines: 107E-1, 114E-3
Purpose
Used to cut injector fuel supply when diagnosing in-jector leakage or malfanction. (Used on fuel rails with18 mm threads).
CUMMINS Part number: 3164621
Applicable engines: 107E-1, 114E-3
Purpose
Used to create rated fuel flows through the low-pres-sure fuel system without loading the engine.3045018: 0.043-inch orifice3376859: Compuchek coupling
CUMMINS Part number: 4918324 (795-790-4900) 4918413 (795-790-5110)
Applicable engines: 107E-1, 114E-3
Purpose
795-790-4900Used to check fuel pressure/restriction at connec-tions with 12 mm banjo fittings.
795-790-511012 mm banjo screw with 1/8 NPT pipe tap used tocheck fuel pressure/restriction.
CUMMINS Part number: 3377244
Applicable engines: 107E-1, 114E-3
Purpose
Used to connect diagnostics machine. With 1/8 NPTconnection.
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-11
� 2-2 2-2 �
799-202-9001 RADIATOR CAP TESTER
Purpose:
This tester confirm function of the pressure valveand checks the cooling system for water leakage.
Construction:
The tester is composed of a electric air pump forpressurizing and an adapter.
Component parts:
No. Part No. Tool description* Type of
radiator capRemarks
1 799-202-9001 Radiator cap tester -
(1) 799-202-9200 � Pump assembly - Battery 12V (DC), Delivery rate = 0.6 MPa
(2) 799-202-9211 � Cap B M80, P = 1.5
(3) 799-202-9221 � Cap B M80, P = 2 (double thread screw)
(4) 799-202-9231 � Adapter A Rubber outer dia. Ø38
(5) 799-202-9240 � Joint A Ø41 × Ø41 H =73
(6) 799-202-9250 � Joint A Ø50 × Ø41 H=62
(7) 799-202-9260 � Joint A Ø54 × Ø41 H=54
(8) 799-202-9271 � Adapter A Rubber outer dia. Ø48
(9) 799-202-9281 � Adapter A Rubber outer dia. Ø50
(10) 799-202-9311 � Hose - L=1m
(11) 799-202-9320 � Cable - Power cable
2 799-202-9330 Joint A Ø31 × Ø41 H =78 Option
3 799-202-9340 Adapter A Rubber outer dia. Ø27.5 Option
4 07041-13633 Plug C 36 × P1.5, PT 1/8 Option
5 07002-03634 O-ring C Option
6 799-202-9360 Nipple C CEJN 10 - 220 - 5151 , PT 1/8 Option
* See section "types of caps and types of combinations".
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-12
� 2-2 2-2 �
Types of radiator caps:
Type AThe cap type in that the radiator cap and water pouring cap are built into a single unit
(for automobile use) (Four sizes by diameters are available, i.e., Ø54, Ø50, Ø41 , and Ø31 )
Type BThe cap type that has a single unit of pressure valve
(Two sizes by the thread pitch of water pouring cap are available)
Type C The cap type made by WISCO and that has a plug hole in the upper tank
Specifications of basic unit of pump:
• Power source, battery: 12 VDC• Pressure, delivery: 0.6MPa {6kg/cm2}, max.• Pressure gauge: 0 — 0.2MPa {0—2kg/cm2}, containing glycerine• Valve: with regulator valve
How to use:
(1) The method of handling type A or B is same as before. For the details, see Operation Manual.(2) To handle type C, remove the plug from the basic unit of the radiator that has a radiator cap, then install plug
4, O-ring 5, nipple 6, and hose 10.Except for above, handle type C in the same manner as type B.
Type
Use
Che
ckin
g p
ressure
va
lve
op
era
tio
ns
Che
ckin
g f
or
wa
ter
lea
k
fro
m c
oo
ling
syste
m
Types of combinations:
A type B type C type
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-13
� 2-2 2-2 �
Reference:
List of applicable machine model
Machine modelType of
radiator capMachine model
Type of
radiator cap
D20,21-6 Serial No. 60001 and up A PC05 Serial No. 8001 and up A
D31-18 Serial No. 40001 and up A PC07-1 Serial No. 1001 and up A
D37-2 Serial No. 2501 and up A PC10-6 Serial No. 20001 and up A
D40,41-5 Serial No. 10001 and up A PC12UU-1 Serial No. 20001 and up A
D66S-1 Serial No. 1001 and up A PC15 Serial No. 1001 and up A
PC20-6 Serial No. 24001 and up A
D50,53-18 Serial No. 83001 and up B PC25 Serial No. 1001 and up A
D57S-1 Serial No. 20001 and up B PC28UU-1 Serial No. 1001 and up A
D60,65-11 Serial No. 50001 and up B PC30-6 Serial No. 10001 and up A
D75S-5 Serial No. 15001 and up B PC38UU-1 Serial No. 1001 and up A
D85-21 Serial No. 35001 and up B PC40 Serial No. 18001 and up A
D95S-2 Serial No. 1279 and up B PC45 Serial No. 1001 and up A
D135-2 Serial No. 10301 and up B PC50UU-1 Serial No. 1001 and up A
D155-2 Serial No. 50001 and up B PC60U-5 Serial No. 4501 and up A
D275-1 Serial No. 10002 and up B PC60L Serial No. 8001 and up A
D355-3 Serial No. 11728 and up B PC60 Serial No. 28001 and up A
D355-5 Serial No. 12622 and up B PC70 Serial No. 34101 and up A
D375-2 Serial No. 16001 and up B PC75UU-1 Serial No. 1001 and up A
D475-1 Serial No. 10001 and up B PC90 Serial No. 1001 and up A
D475-2 Serial No. 10201 and up B PC100L-5C Serial No. 14001 and up A
D575-2 Serial No. 10001 and up B PC100-5C Serial No. 28001 and up A
DR450-1 Serial No. 10001 and up B PC100-5 Serial No. 30083 and up A
PC120-5 Serial No. 30001 and up A
PC150-5 Serial No. 6001 and up A
PC200,220-5C Serial No. 35001 and up A
PC200-5 Serial No. 45001 and up A
PC200LC-5 Serial No. 45001 and up A
PC300 Serial No. 20001 and up A
PC400-5 Serial No. 20001 and up A
Bulld
ozer
Hydr
aulic
Exc
avat
or
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-14
� 2-2 2-2 �
Machine modelType of
radiator capMachine model
Type of
radiator cap
PW05-1 Serial No. 1001 and up A WA20-1 Serial No. 1001 and up A
PW20-1 Serial No. 1001 and up A WA20-2 Serial No. 10001 and up A
PW30-1 Serial No. 1001 and up A WA30-3 Serial No. 9001 and up A
PW100-3 Serial No. 1862 and up A WA30-5 Serial No. 15001 and up A
PW100N-3 Serial No. 1866 and up A WA40-2 Serial No. 3001 and up A
PF3W-1 Serial No. 10001 and up A WA40-3 Serial No. 10001 and up A
WA50-1 Serial No. 10001 and up A
PC650-3 Serial No. 10501and up B WA70 Serial No. 10001 and up A
PC1000-1 Serial No. 10001 and up B WA100 Serial No. 20001 and up A
WA150-1 Serial No. 20001 and up A
WA200-1 Serial No. 20001 and up A
WA300-1 Serial No. 30001 and up A
HD200D-3 Serial No. 1001 and up A WA320-1C Serial No. 10001 and up A
HD465-2 Serial No. 4001 and up A WA350-1 Serial No. 10001 and up A
HD785-3 Serial No. 2001and up A WA400-1 Serial No. 10001 and up A
WA450-1 Serial No. 20001 and up A
HD200-2 Serial No. 1002and up B WA470-1 Serial No. 20001 and up A
HD320-2 Serial No. 1005and up B WA500-1 Serial No. 10435 and up A
HD1200M-1 Serial No. 1101 and up B WA700-1 Serial No. 10001 and up A
HD200-2 Serial No. 1215 and up C WA600-1 Serial No. 10001 and up B
HD320-2 Serial No. 2001 and up C WA800-1 Serial No. 10001 and up B
HD320-3 Serial No. 2501 and up C
HD325-2 Serial No. 1002and up C
HD325-3 Serial No. 1501 and up C
HD325-5 Serial No. 2001 and up C
HD1600M-1 Serial No. 1007 and up C
Hydr
aulic
Exc
avat
orDu
mp
truck
Whe
el lo
ader
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-15
� 2-2 2-2 �
799-201-1301 PRESSURE GAUGE 799-201-1201 VACUUM GAUGE
Weight: 0.5 kg Weight: 0.6 kg
Applicable engine Cummins engine Applicable engine Cummins engine
Purpose
For measurement of PT pump fuel pressure.Purpose
For measurement of PT pump Vacuum pressure.
Specifications
0 — 2.5 MPaSpecifications
- 101 — 0 kPa {- 762 — 0 mmHg}
How to use How to use
Remove the blind plug of PT pump shut off valveand attach the pressure gauge. Then, measure themax. fuel pressure when the engine is changed overfrom low idle to full throttle.
Attach the vacuum gauge to the PT pump fuel suc-tion side and then measure the vacuum pressure atthe max. engine output or at max. revolutions at non-load.Where vacuum pressures exceed the prescribedone, check to see whether the fuel filter or the fuelpiping is clogged.
Example of use: Example of use:
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-16
� 2-2 2-2 �
795-790-1500 VACUUM GAUGE 795-790-1470 PRESSURE GAUGE
Component parts:
Det Description Req'd
1 Brazed construction 1
2 Hose assembly 1
3 Vacuum gauge 1
Component parts:
Det Description Req'd
1 Pressure gauge 1
2 Pipe coupling 1
3 Hose (#4) 1
4 Male connector 1
5 Male connector 1
Applicable model: 102, 114 engine
Purpose:
Vacuum GaugeCheck the fuel filter restriction during the engine per-formance test. Hose Adapter, Part No. ST-434-2, andvacuum gauge, Part No. ST-434-12, are used to per-form the test.
Applicable model: 102, 114 engine
Purpose:
Pressure Gauge ( 0 — 75 in. Hg.)Used to measure the intake manifold pressure and ex-haust back pressure.
795-790-6400 PRESSURE GAUGE
CUMMINS Part number: 3375932
Applicable engines: 107E-1, 114E-3
Purpose
Used to measure gear pump pressure. (low-pressurefuel system)
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-17
� 2-2 2-2 �
795-790-1700 PRESSURE TEST KIT
Component parts:
(3823799)Kit, turbo wastegate air pressure test consists of:
Komatsu tool No. Det. No. ST. No. Description Specifications Q't y
1 Adapter, hose/pipeAeroquip #2000-4-5B (1/4-18 NPT Male ×
1/2-20 THD., #4 Hose)1
2Fitting, socketlesshose
Aeroquip #4753-4-4B (1/4-18 NPT Female× #4 Hose)
1
3Hose, special
Application
Aeroquip #2556, #4, 1/4" I.D. (Textile braid
rubber tube & cover) 18" Long2
4Fitting, socketless
hose
Aeroquip #4738-2-4B (1/8-27 NPT Male ×
#4 Hose)2
5Adapter, pipe
reducing
Aeroquip #2040-2-4S (1/8-27 NPT Male ×
1/4-18 NPT Female)1
795-790-1710 6 ST-990-40 Regulator, pressure Wilkerson, 1/8 NPT Female, #R00-01-000 1
795-790-1720 73823205
*REF.Gauge, pressure
Aspcroft #63-1008-AL-02L-60; Ø2 1/2";
0-60 PSI; 1/4 NPT Lower; 3-2-3% Accuracy1
8 Label, warning See drawing 1
Applicable model: 102, 114 engine
Purpose:
Turbocharger Wastegate Pressure Setting Kit.Used to set wastegate pressure.Gauge 0 — 60 psi.
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-18
� 2-2 2-2 �
795-230-4200 ROD FIXTURE
Weight: 12.7 kg
Purpose
Intended to inspect connecting rods for center-to-center distance, deflection and distortion.
How to use
How to mount1) Secure a new connecting rod and cap with a pre-
determined torque.2) Insert the rod mandrel in the piston pin hole and
the clamp pin hole and attach them as shown.3) By moving the dial gauge holder, take the read-
ings on the gauge. Then, put the holder turn in-side out and take the readings on the gauge.
4) Adjust the dial gauge 'zero' point to the averagevalue of deflection.
Measurements of center-to center distance and ofdeflection1) Attach the connecting rod to be inspected.2) Then, the reading on the dial gauge represents
the difference between the center of the new con-necting rod and the center of this connecting rod.
3) The difference between the readings on the leftand right hand represent the deflection.
Inspection for distortion1) Using a thickness gauge, measure the clearance
between the mandrel and the fixture back plate.
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-19
� 2-2 2-2 �
799-201-9001 HANDY SMOKE CHECKER
Weight: 3 kgApplicable engine All models
Purpose
Used to measure the concentration of smoke in theengine exhaust gas.
1) Range of measurement:Specifications
2) Size of case:
0 to 70%(Degree of contamina-tion)410 × 300 × 65 mm
How to use
1) Press the pump handle all the way, loosen thescrew on the tip, insert a filter paper into the slit,and tighten the screw.
2) Insert the tip of a sampling tube into the outletpipe of the muffler.
3) From the condition in step 1), slowly pull the pumphandle until it reaches its stroke end. (Time re-quired: 1 to 2 seconds)
4) Loosen the screw, remove the filter paper, andcompare the filter paper with concentrationsamples in the smoke scale to find the scale No.which is most similar to the color of the filter pa-per.
Component parts (each 1 piece)
No. Part No.TooI
descriptionRemarks
1 799-201-9310 Pump With a tube
2 799-201-9320 Nozzle 20SF Coupling
3 799-201-9020 Filter paper Containing 300 sheets
4 799-201-9340 Smoke scale Standard color samples
5 799-201-9330 Nipple 20PM
6 799-201-9350 Case
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-20
� 2-2 2-2 �
795-790-2300 CRACK DETECTOR
795-790-2400 ROD CHECKER
Applicable model: All engine
Purpose:
Used to inspect surface cracks, pores, leaks, seams,etc.Used to clean the threads of the pipe plugs andthreaded bores.(795-790-2310 Cleaner)
Applicable model: 102 engine
Purpose:
When inspecting connecting rods for center-to-center distance, deflection and distortion, this rodmandrel serves as a fixing pin.
Component parts:
Part No. Description Specification Size Q'ty
795-790-2310 Cleaner 12 oz. spray can 3" dia. × 5 1/2 ht. 4
Developer 12 oz. spray can 3" dia. × 5 1/2 ht. 2
Penetrant 12 oz. spray can 3" dia. × 5 1/2 ht. 2
Box Plastic ▲ See det. 1
Instructions 1
Component parts:
Det. Description Q't y
1 Body (welded construction) 1
2 Pin 1
3 Locating plunger 1
4 Hand knob 1
5 Lock pin 1
6 Mandrel, piston pin end 1
7 Mandrel, piston pin end 1
8 Sheet, instruction 1
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-21
� 2-2 2-2 �
795-790-2800 MANDREL KIT
Applicable model: 114 engine
Purpose:
When inspecting Connecting rod checking fixture,to check length, twist and bore alignment.
Necessary tools:
ST-561 Rod fixture
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-22
� 2-2 2-2 �
799-203-6000 FUEL DRAIN TEST KIT
Weight: 2.5 kg
Applicable engine Cummins 743 series engines(with flange type injectors)
Component parts:
No. Part No. Tool description Q't y
1 799-203-6100 Adapter assembly 1
2 799-203-6200 Tube assembly 6
3 799-203-6270 Cylinder 1
4 799-203-6290 Case 1
Size of case 370 × 200 × 70 mm
Necessary tools
1) Multi-tachometer (799-203-8000)2) Stopwatch (Commercially available)
Purpose
Used to check the fuel injectors on 743 series en-gines for defects.
Specifications
1) Application
2) Size of case
743 series engines(with flange type injectors)370 × 200 × 70 mm
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-23
� 2-2 2-2 �
799-201-7101
and others
COOLANT TESTER
Purpose
This tester plate is used for checking if there is anywater leakage from the cylinder head.
How to use
1) Tighten bolt (3) so that centering nut (4) andwasher (5) will be fastened to the cylinder head(to an extent not to leave any clearance betweenthe cylinder head and washer).(Depending on the engine model, the mountingposition of these parts varies; therefore, refer tothe section “Plate mounting position” at a laterpart.).
2) After setting the O-ring to the plate, mount thisplate to the cylinder head.
Tool No. and applicable engines
Tool No. Applicable engines
790-553-1201 4D95L
790-553-1301 6D95L
790-553-1401 4D105-5
790-553-1501 6D125
790-553-1601 140 Series
790-553-1701 170 Series
790-553-1800 6D108
790-553-1900 6D105
795-611-1500 SA(A)6D170E-3
799-201-7101 Cummins 855 Series
799-201-7201 Cummins 743 Series
799-201-7301 155-4
799-201-7401 4D120, 130
799-201-7501 4D105-1, 2, 3
799-201-7601 4D92, 94
799-201-7701 2D94
799-201-7801 2D92
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-24
� 2-2 2-2 �
3) Lock plate (1) to the cylinder head, using bolt (3),washer (5), and nut (6).
4) Mount valve (12) to flange (7) or (8).5) Fit O-ring (10) (or gasket (9) with Komatsu 2D92
and over) to flange (7) and (8).6) Mount flanges (7) and (8) to the cooling water
ports of the cylinder head, using bolt (11).� Valve (12) is used for purging air from inside the
cylinder head at the time of the hydraulic test.
7) Connect the hydrostatic tester to flange (7) tocheck for water leakage under the application ofa hydraulic pressure of 0.25 — 0.59MPa {2.5 —6.0 kg/cm2} for ten minutes.Or connect the air hose to flange (7) and sub-merge the cylinder head in the water to check forair leakage.At this time, the cylinder head must be appliedwith a pneumatic pressure of 0.14 — 0.21 MPa{1.4 — 2.1 kg/cm2} for 30 seconds.
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-25
� 2-2 2-2 �
Component parts and applicable engines
Ass'y
Pa
rt N
o.
79
9-2
01
-78
01
79
9-2
01
-77
01
79
9-2
01
-76
01
79
9-2
01
-75
01
79
9-2
01
-74
01
79
9-2
01
-73
01
79
9-2
01
-72
01
79
9-2
01
-71
01
En
gin
es
All
mo
de
l
2D
92
-1
2D
94
-1
4D
92
-1,
4D
94
-1,2
4D
10
5-1
,2,3
4D
12
0-1
1,
13
0-1
15
5-4
Cu
mm
ins 7
43
se
rie
s
Cu
mm
ins 8
55
se
rie
s
799-201-7710 1 1 1 1.0For sealing the water
outlet
799-201-7810 1 1 0.95For sealing the water
outlet
799-201-7720 1 1 0.75For sealing the water
outlet
799-201-7610 1 1 2.2For sealing the water
outlet
799-201-7620 1 1 1.9For sealing the water
outIet
799-201-7510 1 1 2.7For sealing the water
outlet
799-201-7520 1 1 2.0For sealing the water
outlet
799-201-7410 1 1 3.7For sealing the water
outlet
799-201-7420 1 1 3.7For sealing the water
outlet
799-201-7210 1 1 3.2For sealing the water
outlet
799-201-7110 1 1 3.5For sealing the water
outlet
799-201-7310 1 1 5.1For sealing the water
outlet
07000-02016 14 5 4 9 14 8 8To be mounted to No.1
part
07000-02020 24 24 8To be mounted to No.1
part
3 799-201-7120 8 6 6 8 7 8 4 6 4To be mounted to No.1
part
4 799-201-7130 4 4 4 4 4 4 2 2 2To be mounted to No.1
part
5 799-201-7140 16 12 12 16 14 16 8 12 8To be mounted to No 1
part
6 01580-01210 8 6 6 8 7 8 4 6 4To be mounted to No.1
part
*799-201-7630 1 1 1 1For sealing the cooling
water port
*799-201-7530 1 1For sealing the cooling
water port
Flange
Flange
Bolt
Centering nut
Washer
Nut
Plate
Plate
O-ring
O-ring
Plate
PIate
PIate
Plate
Remarks
1
2
7
Plate
Plate
Plate
Plate
PIate
PIate
No. Part No.Tool
description
We
igh
ts (
kg
)
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-26
� 2-2 2-2 �
Ass'y
Pa
rt N
o.
79
9-2
01
-78
01
79
9-2
01
-77
01
79
9-2
01
-76
01
79
9-2
01
-75
01
79
9-2
01
-74
01
79
9-2
01
-73
01
79
9-2
01
-72
01
79
9-2
01
-71
01
En
gin
es
All
mo
de
l
2D
92
-1
2D
94
-1
4D
92
-1, 4
D9
4-1
,2
4D
10
5-1
,2,3
4D
12
0-1
1, 1
30
-1
15
5-4
Cu
mm
ins 7
43
se
rie
s
Cu
mm
ins 8
55
se
rie
s
799-201-7430 1 1For sealing the cooling
water port
799-201-7220 1 1For sealing the cooling
water port
799-201-7150 1 1For sealing the cooling
water port
799-201-7320 1 1For sealing the cooling
water port
799-201-7440 2 2For sealing the cooling
water port
799-201-7230 1 1For sealing the cooling
water port
799-201-7160 1 1For sealing the cooling
water port
799-201-7330 1 1For sealing the cooling
water port
799-201-7640 1 1 1 1To be mounted to No. 7
part
799-201-7540 1 1To be mounted to No. 7
part
07000-03038 3 3 2To be mounted to Nos. 7
and 8 parts
07000-03022 2 2To be mounted to Nos. 7
and 8 parts
07002-12434 2 2To be mounted to Nos. 7
and 8 parts
01010-30830 9 2 2 2 9To be mounted to Nos. 7
and 8 parts
01010-30845 3 3To be mounted to Nos. 7
and 8 parts
02010-00519 4 4To be mounted to Nos. 7
and 8 parts
02010-20622 4 4To be mounted to Nos. 7
and 8 parts
01010-31020 4 4To be mounted to Nos. 7
and 8 parts
12 799-201-7171 2 1 1 1 1 2 1 1 1
To be mounted to Nos. 7
(* marked part No. ), and
No. 8 parts
9
10
11 Bolt
Bolt
Bolt
Gasket
Gasket
O-ring
O-ring
Valve
O-ring
Bolt
Bolt
Remarks
Flange
Flange
Flange
We
igh
ts (
kg
)Flange
No. Part No.Tool
description
Flange
Flange
Flange
Flange
8
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-27
� 2-2 2-2 �
Ass'y
Pa
rt N
o.
79
0-5
53
-12
01
79
0-5
53
-13
01
79
0-5
53
-14
01
79
0-5
53
-15
01
79
0-5
53
-16
01
79
0-5
53
-17
01
79
0-5
53
-18
00
79
0-5
53
-19
00
79
5-6
11
-15
00
En
gin
es
4D
95
L
6D
95
L
4D
10
5
6D
12
5
14
0 s
eri
es
17
0 s
eri
es
6D
10
8
6D
10
5
SA
(A)6
D1
70
E-3
790-553-1210 1 5.35
790-553-1310 1 7.9
790-553-1410 1 6.6
790-553-1510 1 2.58
790-553-1610 1 3.43
790-553-1710 1 4.6
790-553-1810 1 1 8.15
795-611-1510 1 3.2
790-553-1220 1 0.2
790-553-1320 1 0.3
790-553-1420 1 0.25
790-553-1520 1 0.1
790-553-1620 1 0.13
790-553-1720 1 0.18
790-553-1820 1 1 0.37
795-611-1520 1 0.23
790-553-1230 1 0.38
790-553-1330 1 0.36
790-553-1430 1 1 0.37
790-553-1530 1 0.27
790-553-1630 1 0.51
790-553-1730 1 0.44
790-553-1830 1 0.35
790-553-1240 1 0.01
790-553-1340 1 0.01
790-553-1440 1 1 0.01
790-553-1540 1 0.01
790-553-1640 1 0.02
790-553-1740 1 0.02
790-553-1840 1 0.02
5 790-553-1250 1 1 1 1 1 1 1 1 1 0.11
6 790-553-1260 1 1 1 1 1 1 1 1 1 0.078
7 799-201-7171 1 1 1 1 1 1 1 1 1 0.08 To be mounted to N0.1 part
01011-51230 17 25 18 0.13
01011-51235 26 26 0.134
01011-51250 6 6 0.15
01011-61890 7 0.422
01011-52090 6 0.29
01580-11210 17 25 18 6 5 26 26 0.012
01580-01815 7 0.035
01580-12016 6 0.05
01643-31232 17 25 18 4 4 26 26 0.01
01643-31845 7 0.026
01643-32060 4 0.044
01010-50825 2 2 0.01 5
01010-51030 2 2 2 0.03
12 01011-51040 1 1 0.096 To be mounted to N0.1 part
13 01580-11008 1 1 0.009
14 01643-31032 1 1 0.007
15 02720-20204 1 1 0.005 To be mounted to N0.1 part
For sealing the cooling water
port
To be mounted to N0.1 part
RemarksNo. Part No.Tool
description
We
igh
ts (
kg
)
Nipple
Valve
Union
Bolt 8
3 Plate
4 Packing
1
2
Plate
Packing
9
10
Nut
Washer
11 Bolt
For sealing the water outlet
To be mounted to N0.3 part
Same as above
To be mounted to N0.1 part
Same as above
Same as above
Plug
To be mounted to N0.3 part
Same as above
Bolt
Nut
Washer
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-28
� 2-2 2-2 �
PLATE MOUNTING POSITION
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-29
� 2-2 2-2 �
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-30
� 2-2 2-2 �
799-205-1001 TACHOMETER SET
Applicable engine: All models
Purpose:
This revolution indicator allows many types of revo-lutions to be measured as described below.For the standard set:1) For the Komatsu or Cummins engine that has a
tachometer drive, correct engine revolutions canbe easily measured if the adaptor for the tachom-eter drive is used.
2) If the reflecting tape is glued to the revolving bodyand the photoelectric probe used, revolutions canbe measured without contact with the revolvingbody.
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-31
� 2-2 2-2 �
Component parts:
No. Part No. Part name Q'ty Remarks
- 799-205-1001 Tachometer set 1
- 799-205-1100 �Tachometer kit 1
1 799-205-1200 ��Tachometer 1 6.0 ~ 99999.9 rpm
2 799-205-1300 ��Bracket 1
3 799-205-1220 ��Probe 1 Photoelectric pickup, Cable length: Approx. 5 m
4 799-203-8300 ��Stand 1
5 799-203-8230 ��Nut 1 Metric (M22 x 1.5), marked"M"
6 799-203-8240 ��Nut 1 Imperial (7/8-18 NS), marked"I"
7 799-205-1400 ��Case 1
- 799-205-1601 �Tachometer kit 1
8 799-205-1701 ��Tachometer 1 400 ~ 10,000 rpm
9 799-205-1800 ��Detector 1 Fuel injection pipe-mounted type sensor
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-32
� 2-2 2-2 �
How to use:
For a more complete description, refer to the Op-eration Manual accompanying the Multi-Purpose Ta-chometer.
1. Measuring engine speed1) Securely attach the provided cord to the connec-
tor of the probe and the main unit.2) Attach the sensor to the engine speed outlet.
Note: • Attach the sensor to the servicemeter’sengine speed outlet secure with a ring nut.
• Pay special attention to the system of units(mm vs. inches) used at the point of at-tachment.
3) Apply power and select either the H- or L-range.When the tone sounds and the triangular markappears on the display, take a reading.
2. Other measurements1) Apply a piece of Scotch-Lite(R) reflective tape to
the object to be measured.Note: • Cut the Scotch-Lite(R) into a strip 10 to 30
mm long, peel off the kraft paper backing,and press onto the object.
• Place the tape as close as possible to thecircumference of the object.
2) Loosen the knurled screw on the bracket, removethe probe, and clamp the probe to the flexible standincluded with the Basic Set.
3) Apply power and select either the H-or L-range.Point the probe at the rotating object and pressthe MEAS switch so that the red light from theprobe strikes the reflective tape.If the positioning is correct, the tone will soundand a triangular mark will appear on the display,indicating that a reading can be taken.The distance between the tape and the probe mustbe in the range specified in the accompanyingdrawing.The angle of incidence must be -30° to +30°.
50 - 300mm
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-33
� 2-2 2-2 �
Sample Application 1: Measuring the speed of a fan1) Attach a piece of reflective tape to the outermost
part of one of the fan blades.2) Mount the magnetic base on any convenient sur-
face (for example, hood, side cover, radiatorcover, or main frame) and adjust the flexible sup-port so that the light from the probe shines bothroughly parallel to the fan's axis of rotation androughly perpendicular to the fan blade's twist.
3) Further adjust the probe position so that the lightshines on the center of the tape.
Note: Make sure that the probe does not get in theway of the fan!
4) This concludes the setting up procedure. Proceedwith the normal measuring procedure.
Note: If the standard procedure fails to yield astable reading, try moving the probe furtheraway from the fan or improving the contrastby applying black, non-reflecting paint to thetips of all fan blades before applying the re-flective tape.
Note: Electronic flashes, fluorescent lights, andother intermittent light sources can interferewith measurement; never allow them to en-ter the probe!
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-34
� 2-2 2-2 �
795-790-2600 TAKEOFF DRIVE
Applicable model and component parts
Model
102
114
Ass'y
part
No.
-
795-7
90-2
600
1 6735-21-3410 1 1
2 6732-21-3220 1 1
3 6736-21-7120 1 1
4 6735-21-3450 1 1
6735-21-3420 1
6742-01-5498 1
6 6732-81-5250 2 2
7 6735-21-3430 2 2
Washer
Bolt
Adapter
Seal
Seal
Adapter
No. Parts No. Parts name
5Hub
Hub
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-35
� 2-2 2-2 �
ADAPTER 795-116-1330
and others
FEELER GAUGE
Purpose:
To be used when measuring the engine rotation(rpm) on PC01.
Note) When reading the indicator, do carefully be-cause the rpm indicated by the indicator is1/2 the engine rpm.
How to use:
1) Remove the can gear cover from the gear case.2) Install packing (2) and gear unit (1), then flex cable
(6) to gear unit (1).3) Fit the digital tachometer or Hustler type tachom-
eter to flex cable (6), then measure engine rpm.
Tool No. and specifications:
No. Tool No. SpecificationsWeight
(kg)
1 795-116-1330 0.35, 0.65 mm 0.1
2 795-125-1210 0.43, 0.8 mm 0.1
3 795-125-1310 0.3, 0.5 mm 0.1
4 795-125-1320 0.4, 0.6 mm 0.1
5 795-125-1330 0.25, 0.45 mm 0.1
6 795-125-1360 0.33, 0.71 mm 0.1
7 795-125-1370 0.35, 0.5 mm 0.1
8 795-125-1380 0.37, 0.90 mm 0.1
9 795-125-1390 0.4, 1.0 mm 0.1
10 795-562-1200 0.41, 0.74 mm 0.1
11 795-562-1300 0.36, 0.69 mm 0.1
Purpose:
The feeler gauge is used for adjusting the valveclearance.
How to use:
Insert the gauging section to adjust the valve clear-ance.
Component parts:
No. Part No.Tool
descriptionYammer Diesel
numberQ't y
1 795-126-1110 Gear unit 124250-91400 1
2 795-126-1120 Packing 124250-91412 1
3 01010-50630 Bolt 26117-060322 1
4 01010-50616 Bolt 26117-060162 2
5 01602-20619 Washer 23414-06000 3
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-36
� 2-2 2-2 �
799-203-7000 FUEL LEAK CHECKER
Weight: 15 kg
Purpose
1) To find the places where fuel leaks into the en-gine and to check that the fuel leakage is com-pletely repaired.
2) To measure the nozzle cracking pressure afternozzles are installed to an engine.
3) To check the function of a nozzle assembly whenthe color of the engine is abnormal or when theengine output is inadequate.
Specifications
105 and 155 seriesCummins 743 series0 to 40 MPaASTM D975 No.2465 × 350 × 170 mm
Component parts
No. Part No. Tool description Q't y Remarks
1 799-203-7100 Checker 1 Main body of fuel leak checker
2 799-203-7200 � Valve unit 1 Valve section above the checker body
3 799-203-7400 Gauge assembly 1 With self-seal coupling, 40 MPa
4 799-203-7410 � Gauge 1 40 MPa
5 799-203-7500 Gauge assembly 1 With self-seal coupling, 2.5 MPa
6 799-203-7510 � Gauge 1 2.5 MPa
7 799-203-7600 Adapter assembly 1 With a complete set of auxiliary parts
8 799-203-7610 � Hose 1 L=2.0 m Hose adapter: 14 × 1.5
9 799-203-7620 � Nipple 1 For 743 series engine, 3/8-24UNF-2A, 14 × 1.5
10 799-203-7630 � Plug 4 For 743 series engine, 7/1 6-24UNS
11 799-203-7640 � Plate 1 For 743 series engine
12 799-203-7650 � Bolt 2 For 743 series engine, 01011-51400
13 799-203-7660 � Nut 2 For 743 series engine, 01580-11411
1) Applicable engine:
2) Range of pressure:3) Fuel to be used:4) Size of case:
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-37
� 2-2 2-2 �
No. Part No. Tool description Q't y Remarks
14 799-203-7670 � Washer 2 For 743 series engines
15 799-203-7680 � Nipple 2 For Komatsu engines, 14 × 1.5, 14 × 1.5
16 799-203-7690 � Nipple 2 For 6D105 engines, 12 × 1.5, 14 × 1.5
17 799-203-7710 � Plug 3 For Komatsu engines, 14 × 1.5
18 799-203-7720 � Seal washer 5 For Komatsu engines, 07005-01412
19 799-203-7730 � Plug 3 For Komatsu engines, 12 × 1.5
20 799-203-7740 � Seal washer 5 For Komatsu engines, 07005-01212
21 799-203-7750 Tube assembly 1 Straight tube, 14 × 1.5, 14 ×1.5
22 799-203-7760 Tube assembly 1 Straight tube, 12 × 1.5, 14 × 1.5
23 799-203-7770 � Tube assembly 1 Bent tube, 14 × 1.5, 14 × 1.5
24 799-203-7780 � Tube assembly 1 Bent tube, 12 × 1.5, 14 × 1.5
25 799-203-7790 Base 1 Support for checker (wooden)
26 799-203-7800 Case assembly 1 The case is lined with sponge, with belt.
Example of use: Check of a feed pump Example of use: Independent check of anozzle holder
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-38
� 2-2 2-2 �
790-551-1290 NOZZLE TESTER
Applicable model: All Komatsu engine models
Purpose:
Used when checking the injection pattern and in-jection pressure on fuel injection nozzle.
How to use:
Install the tube assembly and nipple to the nozzletester, screw the fuel injection nozzle in the end,apply fuel oil pressure, and measure the injectionpattern and injection pressure.
Example of use:
Component parts:
No. Tool No. Part Name Q't y Weight (kg)
1 799-203-7700 Nozzle tester 1 7.3
2 799-203-7750 Tube ass'y 1 0.044
3 799-203-7760 Tube ass'y 1 0.042
4 799-203-7770 Tube ass'y 1 0.080
5 799-203-7780 Tube ass'y 1 0.084
6 799-203-7810 Tube ass'y 1 0.049
7 799-203-7820 Tube ass'y 1 0.087
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-39
� 2-2 2-2 �
795-790-2220 LEAK TESTER PLATE (LEAKAGE TEST)
Applicable model: 102, 114 engine
Purpose:
Leak Test KitPressure test the element to check for leaks.
Example of use:
Component parts:
Description Specifications Q't y
O-ring Parker #2-2 17 3
Thumb screw 5/16-18 ×1 1/4 Iong (steel) 4
Nut. Std. hex 5/16-18 8
Washer, plain flat 5/16 4
Plate, Ieakage test See detail 1
Regulator, pressure Watts # R384-02C 1
Gauge, pressure Watts 0-160 P.S.1. 1-5/8 O.D. 1
Hose (gates)
#4-2MP / #4-2MP (1/8 Male NPT)
1/4 Duraflex hose 15" Length /
EQUIV.
1
Sheet, instruction 1
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-40
� 2-2 2-2 �
795-471-1450 ADAPTER
8 x 1.25 - Rc1/8
Applicable model: SAA6D125E-5
Purpose:
Used to measuring fuel pressure.
Example of use
795T-690-1110 BLOCK
Applicable model: SAA6D170E-5
Purpose:
Used to measuring EGR valve oil pressure.
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-41
� 2-2 2-2 �
790-828-1000 FUEL METER
Weight: 7 kg
Applicable model:
In-line fuel-injection pump (Bosch type)Distribution fuel-injection pump (Rotary type)
••Note) The fuel cannot be measured on the Cummins type.
No. Part No. Part description Q'ty
- 790-828-1000 FUEL METER 1
1 790-828-2100 METER 1
2 790-828-2370 STRAP 1
3 790-828-2380 COVER, meter 1
4 790-828-2400 CABLE ASS'Y 2
5 790-828-2500 CABLE ASS'Y 1
6 790-828-2600 CABLE ASS'Y 1
7 790-828-5100 SENSOR ASS'Y 2
8 07271-01430 HOSE 3
9 07206-11014 JOINT, bolt 6
10 07005-01412 GASKET 12
11 790-828-6100 JOINT 4
12 07281-00197 CLAMP, hose 4
13 790-828-5180 CAP 4
14 09014-10200 WRENCH 1
15 790-828-9210 MANUAL (J) (Japanese) 1
16 790-828-9250 MANUAL (E) (English) 1
17 790-828-9210 CASE, carrying 1
Purpose:
Measuring the fuel consumption.Cumulative fuel consumption (Unit: L)Indicates cumulative fuel consumption from thestart to the end of measurement.Cumulative fuel consumption rate (Unit: L/H)Indicates cumulative fuel consumption from thestart to the end of measurement converted to therate of consumption per hour.Instantaneous fuel consumption rate (Unit: L/H)Indicates the fuel consumption per second con-verted to the rate of consumption per hour. (Theindicated value changes every second.)Measurement time (Unit: H-M-S)Indicates the duration from the start to the end ofmeasurement in hours-minutes-seconds.Power source
1)
2)
3)
4)
�
1) D.C. 12 — 24 volt2) Built-in chargeable battery
(Chargeable from 12 — 24V battery)
Example of use:
Component parts:
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-42
� 2-2 2-2 �
790-829-1030 FUEL MATE
(General purpose type fuel meter)
The measured data can be printed out.
This FUEL MATE is an electronic fuel consumptionq’ty/ratio meter. That is, this computerized handyfuel meter is capable of simply measuring the saidfuel consumption q’ty/ratio in large-sized enginesfor construction machines as well as in small-sizedengines for motor-cycles, etc. even during their trav-eling or running.The fuel consumption q’ty covering the period fromthe starting to the end of measurement is indicatedin the digital form on a liquid crystal display. Themomentary fuel consumption ratio varying per sec-ond and the mean consumption ratio during themeasurement. Thus, the measured data are printedout with the lapse of time covering from the startingto the end of measurement.In addition, after completing the measurement, ifthe distance covered by a test machine is enteredwith a “ten-key”, the mean vehicle speed and thedistance covered per lit. of the fuel consumed arecomputed and displayed.
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-43
� 2-2 2-2 �
Thus, the FUEL MATE has the following distinctivefeatures.
1.
2.
3.
4.
5.
6.7.
8.
The fuel consumption can be simply measuredduring the actual operation of a vehicle.The small-sized, lightweight, handy type can becarried and used anywhere.The meter is computerized for high precisionmeasurement and computation.In diesel engines, the q’ty of fuel return in opera-tion is large. Such q’ty of fuel return is subtractedin its computation.Hourly fuel consumption ratio, Km/L or Km/H, isobtained by the computer.Measured values can be printed out.This FUEL MATE is of an interactive type simplein control and provided with a self-diagnostic func-tion.The power source (6 — 24 V) is available from acigarette lighter at the operator’s seat. The bat-tery cigarette lighter at the operator’s seat. Thebattery provided internally can also be used asthe power source.
In an engine abundant in the return fuel, a fuelflow sensor is installed on the return side, too.
�
Mainspecifications(Main body)
1. Measuring itemsand measuringrange
Fuel consumption q’ty:Measuring time (When the external powersource is used):Fuel consumption ratio (Momentary consump-tion ratio & mean consumption ratio)
2. Power source
When sensor Type A is used:When sensor Type B is used:
Distance covered per lit. of fuel(computed value):Mean vehicle speed (computed value):Measuring-over alarm function is also provided.Battery built-in, AA, Ni-cd, 4 pcs. When charged fully, serviceable for 10 hrs.External power source
on-board battery (DC6 - 24 V), connectable to a cigarette lighter plug,AC adapter as accessory and low-voltage alarming function are alsoprovided.
When the external power source is in use, the additional charge of the built-in (internal) battery can be carried out.A flat-faced switch, shift-key typeWhen “Distance” button is depressed, “shifted-in” is available, and when“Compute” button is depressed, “shifted-out” is obtained.The “Numeral” key is used to input the distance covered at the time of the“shifted-in”.The “Clear” key is used to correct the numerical input.The “Reset” button is used to prevent the erroneous keyboard operation,if any. When kept depressed for 2 seconds or longer, the meter is actuated.Only while the “Consumption q’ty” button and the “Consumption ratio”button are kept down simultaneously, the momentary fuel consumptionratio is displayed in the real time.
3. Keyboard
4.
5.
6.
Operating temp-rature range:Exclusiveprinter:Main bodydimensions andweight:
0 to 50°C
EPSON C-40
150 × 115 × 42 mm approx. 520 g
0.01 — 9999.99 L
99H 59M 59S
0.1 — 300.0 L/H0.1 — 40.0 L/H
0.1 — 99.9 Km0.1 — 999.9 Km/H
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-44
� 2-2 2-2 �
Construction and Component Part No.
No. Part No. Part Name Q'ty Remarks
Over-
all790-829-1030 Fuel mate 1 All component parts listed below are contained in a portable case.
1 790-829-3100 Meter 1 "Fuel Mate" body ass'y
2 790-828-2370 Strap 1 Hanging strap (made of plain nylon fabric) for FUEL MATE body ass'y.
3 790-828-2380 Cover, meter 1 Cover for FUEL MATE body ass'y (made of soft leather, etc.)
4 790-828-2500 Cable ass'y 1 Power cable ass'y (for connecting the battery terminals)
5 790-828-2600 Cable ass'y 1 Power cable ass'y (for connecting a cigarette lighter on outomobile, etc.)
6 790-828-5100 Sensor ass'y 2 Fuel flow sensor ass'y Type A (Measuring range: 0.1 to 300 L/H)
7 790-828-2400 Cable ass'y 2 Sensor cable ass'y (for connecting FUEL MATE and sensor together)
8 790-829-6100 Printer ass'y 1 EPSON C-40 (MODEL P40BA, CODE A)
9 790-829-6310 Ribbon cassette 1 Spare ribbon cassette EPSON 7Q 1C40
10 790-829-6320 Roll paper 1 Spare roll paper (containing 5 rolls) EPSON 8R1C 40
11 790-829-6700 Cable ass'y 1Power source cable ass'y (for connecting FUEL MATE and the printer
together)
12 07271-01430 Hose 3 2 hoses are used for sensor. One hose is stored in a given position.
13 07206-11014 Joint, bolt 6 4 bolts are used for sensor. 2 bolts are stored in a given position.
14 07005-01412 Gasket 12 8 gaskets are used for sensor. 4 gaskets are stored in a given position.
15 07281-00197 Clamp, hose 2 Stored in a given position.
16 790-828-5180 Cap 4 Stored in a given position.
17 790-828-6110 Joint 2 Stored in a given position.
18 790-829-9100 Case, carrying 1 Portable case containing all component parts (with punched sponge)
19 790-829-9250 Manual, operation 1 "FUEL MATE" Operation Manual
20 790-829-9270 Manual, operation 1 Printer Operation Manual.
Option (for separate sale)
-- 790-828-7100 Sensor ass'y 2 Fuel flow sensor Type B (Measuring range: 0.1-40 L/H)
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-45
� 2-2 2-2 �
In this FUEL MATE,the following data are computed and displayed, byputting the signals measured with a flow sensor in-stalled on the fuel pipe into an 8-bit computer, thenby computing and converting the fuel consumptionq’ty per second (cc/sec).
The consumption ratio (momentary L/H) varyingmomentarily according to the vehicle operatingcondition.The total consumption q’ty (cumulative L) fromthe starting of measurement up to the present.The mean hourly consumption ratio from the start-ing (mean L/H), andThe time which has elapsed from the starting ofmeasurement (H.M.S)
�
�
�
�
�
�
If the distance covered by a test vehicle is inputwith the “ten-key”, the following data will be com-puted and displayed.The distance covered per lit. (Km/L), andThe mean vehicle speed during the measure-ment.
All these measured data are printed out, excludingthe momentary consumption ratio.
The measurement starting and stopping pauses canbe simply obtained by means of push buttons on thekey-board. Thereby, the net actual operating hoursand fuel consumption q’ty can be measured.
The fuel consumption q’ty and the time can be mea-sured, by classifying them into the fuel consumptionper haul cycle for a dump truck or into the fuel con-sumption per truck loading by a loading machine.Such data classified by the traveling condition as “Up-hill road”, “Downhill road”, “Flat road” etc., can be ob-tained through the keyboard control.
If the “Print” button is depressed without depressingthe “Stop” button, the following data during the periodfrom the starting of measurement to the starting ofprinting will be printed out.(1) Fuel consumption q’ty(2) Measuring time(3) Hourly consumption q’tyIn this case, the data measured up to that time arecleared up and the measurement is newly started fornew data.
If the “Print” button is depressed after depressing the“Stop” button, the following data during the period fromthe starting to the end of measurement are printedout.Then, if started again, the measurement will be re-started continuously from the data obtained just be-fore the restarting. In this case, the input data of thedistance covered will be cancelled.(1) Fuel consumption q’ty(2) Measuring time(3) Distance covered (Input data)(4) Hourly consumption q’ty(5) Distance covered per lit.(6) Mean vehicle speed
LH.M.SL/H
LH.M.SKmL/HKm/LKm/HFUEL MATE Functional Block Diagram
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-46
� 2-2 2-2 �
(Caution)
In some of engines (KOMATSU 125 Series) equippedwith Model EP-9 fuel injection pump mfd. by NIPPONDENSO, the fuel consumption measurement maysometimes become difficult due to such a slight re-verse flow in the fuel flow as caused by the feed pumpstructure.When installing flow sensors in a fuel meter, such apreventive measure as described herein should betaken before the measurement of the fuel consump-tion. The installation procedure of fuel flow sensors isdescribed in detail in the Operation Manual. On ma-chines listed up in Table 1, such a check valve asshown in Fig. 1 may become necessary as a mea-sure against the reverse flow. Therefore, it is advisedthat necessary parts be prepared, referring to the partslist in Table 2.
1.Machines where the measuring errors with fuel
meter are liable to occur due to the reverse fuel
flow
Table 1 right gives machines requiring a preventivemeasure of a possible errors in data measured withfuel meter due to the slight fuel reverse flow.On these machines, the fuel consumption shouldbe measured by adding such a check valve as in-troduced herein to the fuel line. On machines otherthan those listed in Table 1, too, if the abnormallyhigh fuel consumption data are encountered, themeasurements should be made by adding a checkvalve to them in the same manner.
Table 1 Examples of machines requiring a check valve
for the measurements
Machine
Model
Engine
Model
Machine
Model
Engine
Model
D50A, P-17
D53A, P-17
D60A, P, S-8
D65A, P, S-8
GD600R-3
GD605A-3. -5
6D1 25-1
D75S-5
D83E-1, -SS
PC300-3
PC400-3
LW250-1
S6D125-1
EM655A-A SA6D125-1
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-47
� 2-2 2-2 �
2.Preparation of check valve for measuring the fuel consumption
Prepare those parts which are listed in Table 2 and set up as shown in Fig. 1.
3. Installation of fuel flow sensors
Connect a sensor on the fuel supply side markedand another sensor on the fuel return side marked
3-1 Installation of sensors in an engine where much fuel return is encountered:(1) Where fuel returns directly to the fuel tank (on WA450, PC400-3, CAT769C, etc.)
Marks show the positions where the sensors areinstalled. If the measurement is difficult due to thefuel reverse flow, and a check valve at a positionmarked �.
SR
Table 2 Parts required to prepare a check valve for measuring the fuel consumption
Ref.No. in
Fig.1Part Name Part No. Q'ty
Check valve
(Overflow valve)
DKKC Part No. 131424-1520
ND Part No. 090310-00801 pc.
Nut 790-829-8130 1 pc.
* Gasket KES Part 07005-01412 4 pcs .
* Hose KES Part 07271-01430 1 pc.
* Joint bolt KES Part 07206-11014 1 pc.
( Note )Parts marked * in the above list are available from the group of accessory parts for a
fuel meter.
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-48
� 2-2 2-2 �
(2) Where fuel returns to the feed pump inlet port or to the tube leading to the Inlet port (on HD465-3, etc.)
(3) Where fuel filter and fuel injection pump are integrated into one unit (on CAT966D, etc.)
3-2 Installation of sensors in an engine where the fuel return is slight;(1) In the normal case (on WA400, PC200-, & PC300-3, etc.)
(2) Where the engine is difficult to start or where the engine power drops:
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-49
� 2-2 2-2 �
Table 3 Types of fuel meters
Types of fuel meters
Simple type fuel meter
"Fuel meter"
Part No. 790-828-1000
General purpose type fuel meter
"FUEL MATE"
Part No. 790-829-1030
Applicable range
(Engine Model)
1 ) Diesel engines with a line type (Bosch)
injection pump
2) Diesel engines with a rotary type
injection pump
In addition to the engines in I ) and 2).
3) Gasoline engines of an electronic fuel
injection type
4) Gasoline engines of a carburetor type
Items to be
measured
1 ) Cumulative consumption q'ty
Q'ty of fuel consumed during the period
from the starting to the stopping of
measurement (unit: Iit.)
2) Cumulative fuel consumption q'ty
Hourly consumption q'ty converted from
the cumulative consumption q'ty
(unit: L/H)
3) Momentary fuel consumption q'ty
Hourly consumption q'ty converted from
the consumption q'ty per second
(unit: L/H)
4) Measuring time
The period of time elapsed from the
starting to the stopping of measurement
(unit: H.M.S.)
In addition to the items in 1) thru 4) at the left,
5) Mean machine speed
The mean machine speed computed on the
basis of the distance traveled during the
period from the starting to the stopping of
measurement
(unit: Km/H)
6) Distance covered-fuel consumption ratio
Distance covered per lit. of fuel consumed
(unit: Km/L)
Output results of
measurement
A result of measurement on each item is
indicated by a digital display (in its unit).
A result of measurement on each item is
indicated in its unit by a digital display and at
the same time, output by a printer.
5. Types of fuel meters
Such fuel meters as listed In Table 3 have been intro-duced up to date. At present, the FUEL MATE (PartNo. 790-829-1030) developed on the basis of a simpletype fuel meter (Part No. 790-828-1000) is recom-mended. Hereafter, this general purpose fuel meter."FUEL MATE"only are manufactured to meet the market trends.
When measuring the fuel consumption ratio, measurethe cumulative fuel consumption ratio during a givenperiod of time, with the indicated momentary fuel con-sumption q'ty used as a reference data. The reasonis such that the indicated momentary fuel consump-tion q'ty is liable to be unstable, because the velocityof fuel flow varies subtly, even if the engine revolutionremains stable.This symptom does not pause a problem of the fuelmeter proper and the fuel flow sensor but indicatesan ill-effect caused by the structure of a fuel feedpump.Consequently, the stable data can be obtained ratherby measuring the cumulative fuel consumption ratiofor several minutes.
4. Hint on the measurement of fuel consumption
ratio
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-50
� 2-2 2-2 �
795-231-1110
and others
R-GAUGE
Purpose:
to use for measuring the finished R dimensions atfillets after correcting the crankshaft by means ofgrinding in the engine crankshaft reconditioningoperation. (See Fig. 1.)
Tool No.Refer to the following list.Select the necessary gauge.
Tool NO. and applicable engine.
Tool No. Applicable engines Remarks
795-231-1110 4D92, (S)4D95, (S)6D95 *
795-231-1120 4D105, 6D105, (S)6D108, S(A)6D110 *
795-231-1130 (S)6D125 *
795-231-1140 S4D130 *
795-231-1150 S(A)6D140 *
795-231-1160 SA12V140 for main journal
795-231-1170 SA12V140 for pin journal
795-231-1180 S4D155, S(A)6D155, SA6D170 *
795-231-1190 SA8V170, SA12V170 *
795-231-1210 SA16V170 *
R-gauges marked * are applicable to both main and pin journals.
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-51
� 2-2 2-2 �
Example of R-Gauges
In the same measurement as described aboveand made by the use of the R-gauge for the min.value: when the R-gauge and the fillet are in con-tact at one point or in the full contact, the filletradius is acceptable. (See Fig. 4.)When they are in contact at two points, the filletradius will be less than the min. value, which isnot acceptable.
How to use a R-gauge
Measurement of the radius of the journal fillet of acrankshaft corrected by grinding should be made inthe following point with a fillet measuring R gauge anda pencil type flashlight.
Set a R-gauge for the max. value to the journalfillet. Then, apply the light from the back of the R-gauge. At this time, clearance profiled like a cres-cent can be seen with the gauge in contact withthe fillet at 2 points or the gauge comes in the fullcontact with the fillet. In such a case, the radiusat the fillet is within the limit of the max. value,which is acceptable, (See Fig. 3.)When the R-gauge (for the max. value) and thefillet are in contact only at one point, the radius ofthe fillet exceeds the max. value, which is notacceptable.
(1)
(2)
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-52
� 2-2 2-2 �
799-201-2202 BOOST GAUGE KIT 795-471-1200 GAUGE ASS’Y
Weight: 0.93 kg
Applicable model: All engine
Purpose:
Used this kit when measuring the air charging pres-sure to the engines.
Component parts :
No. Part No. Part Name Q'ty Remark
1 799-101-5160 Nipple 1 PT 1/8
2 799-401-2610 Hose 1
3
799-401-2311 Gauge 1
799-401-2291 �Gauge 1 -760-1500 mmHg
790-261-1130 �Coupling 1
790-261-1140 �Packing 1
Applicable model: 125E-2, 170E-2, 3 engine140E-2
Purpose:
Used this gauge ass’y when adjusting the fuel in-jection timing of the engines.
For engines on the WA600-1 and WD600-1, use adial gauge available on the market (with the gage scaleof 0.01 through 20 mm) as the component part itemNo. 2.
Component parts :
No. Part No. Part Name Q't y Weight (kg)
1 791-503-1190 Magnet stand 1 1.4
2 791-503-1060 Dial gauge 1 0.12
3 795-471-1210 Joint 1 0.01
4 795-471-1220 Measure point 1 0.002
5 795-471-1230 Rod 1 0.185
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-53
� 2-2 2-2 �
From D375A-5, 170-series engine have been modified to -3 conform to Tier 2 engine emission regulationof EPA in USA.In the future, 170 Series engines for models to be introduced to the market will be mounted with -3 oneafter another. For injectors, fuel pumps, various sensors, controllers, etc. composing the engine fuelsystem (so called HPI), units and parts common to Cummins engines have been used. So, troubleshootingunits to be used are partly common to those of Cummins Engine Company.Therefore, we are going to introduce troubleshooting units to be used on 6D170-3 series engines. ** HPI : High pressure injection
1. Newly Set Units
2. Purpose
2-1. Determination of Defective Injector with HeatGun (Portable infrared thermometer)(Part Number : 795-799-5510)Troubleshooting Method : Wait until the en-gine to cool down before starting the trouble-shooting. Measure temperature of each cyl-inder on the front surface of the exhaustmanifold for 10 minutes right after the en-gine started. When temperature of a cylinderhardly rises, judge the cylinder to be defec-tive. Covers of the exhaust manifold havebeen structured so that their surface tem-peratures can be easily measured.
795-799-5510 Troubleshooting Unit for HPI Engine, 6D170E-3
Heat gun
**
No.Komatsu Part
No.Cummins Part
No.Part Name Application
1 795-799-5510 - Heat gun To be used for troubleshooting of injector.
2 795-799-5550 3376859 Adapter To be used for measuring pressure of fuel pump.
3 795-799-5560 - Oil pressure gauge To be used for measuring pressure at fuel pump inlet.
4 795-799-5520 - Socket (S) To be used for troubleshooting of engine speed sensor.
5 795-799-5530 - Socket (C)To be used for troubleshooting of water temperature sensor, airintake temperature sensor and exhaust gas temperaturesensor.
6 795-799-5540 - Socket (A) To be used for troubleshooting of temperature sensor.
7 795-799-5460 3824774 CableTo be used for troubleshooting of atmospheric pressuresensor, fuel pressure sensor and actuator pressure sensor.
8 795-799-5470 3824775 CableTo be used for troubleshooting of lubricating oil pressuresensor.
9 795-799-5480 3824776 CableTo be used for troubleshooting of timing pressure sensor, airintake pressure sensor and pump pressure sensor.
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-54
� 2-2 2-2 �
Temperature characteristic when the 2nd cylinderis abnormal
Temperature characteristic when all cylinders arenormal
Note : The heat gun has the Part Number set by Komatsu but is not a special one and is generally availablein the market. So, if you have any heat gun, you need not purchase a new one. If you purchase it, werecommend Part Number MX2 of Raytek Corp. or equivalent.(For Raytek Corp., contact http://www.raytek.com)
2-2. Diagnosis of Pump Acceptability by Measuring Pump Inlet and Outlet PressuresWhen the pump inlet pressure is normal (below 27KPa) and the pump outlet pressure at each enginespeed is not more than the standard value, the pump is considered to be in the normal state. Forthe detail, please refer to the Shop Manual.When the inlet pressure is more than the specified value, the fuel filter is supposed to be loaded orthe piping is supposed to be clogged or loosened or fuel may be leaking from somewhere. Whenthe outlet pressure is lower, any of the pump body, pressure sensors or the regulator valve issupposed to be defective.
1) Adapter (Part Number : 795-799-5550)The fuel pump is equipped with a quick coupler for measuring pump inlet and outlet pressures. Thiscoupler does not accept our usual couplers in connection, and we have newly set the adapter, whichaccepts our usual quick couplers and enables to measure pump outlet pressure easily with our usualpressure gauges. Since pump inlet pressure becomes negative, the negative pressure gauge to beintroduced in the next paragraph is necessary for measurement.
Quick coupler for measuring fuel pump inletpressure
Komatsu’s Quick Coupler
Quick coupler for measuring fuel pump outletpressure
Adapter
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-55
� 2-2 2-2 �
2) Oil Pressure Gauge for Measuring Negative Pressure (Part Number : 795-799-5560)This gauge is used for measuring inlet pressure of the fuel pump. The measuring range is from 0to –0.1MPa.
2-3. Diagnosis of Electronic Control SystemThe HPI is equipped with various sensors, and we have set simple sockets and cables to be con-nected to these sensors for diagnosis. These cables are common to those used by Cummins Corp.
1) SocketThis socket is connected to a sensor to check disconnection or short-circuit of the sensor.
Part Number How to useDiagnosis Example of Intake Air Temperature Sensor
2) Cable This cable is used in the same way as a T-adapter and for measuring output voltage of a sensor. Also,this cable is used for checking disconnection or short-circuit of a sensor.Part Number How to use
Diagnosis Example of Atmospheric Pressure Sensor
795-799-5540
795-799-5520
795-799-5530
795-799-5460 795-799-5480
795-799-5470
SECTION 2
MEASURING AND DIAGNOSTIC TOOLS
GROUP 2
ENGINE TOOLS
2-2-56
� 2-2 2-2 �
3) T-adapter for DEUTSCH ConnectorDEUTSCH connectors have been used for connection of engine controller and engine to machinebody. The T-adapters for DEUTSCH Connector, which we introduced you in our previous Parts &Service Operation Tips, can be used for connection.
Parts & Service Operation Tips No. d
1 799-601-9350 T-adapter (40 poles) Adapter for controller SEKN5015
2 799-601-9290 T-adapter (31 poles) Adapter for body connection connector SEKN5005
3 799-601-9270 T-adapter (21 poles) Adapter for body connection connector SEKN5005
Connection of T-adapter to BodyConnection Connector
Body Connection Connector(2) T-adapter for Body Connection Connector 799-601-9270
Connection to controller of D375A-5(1) T-adapter for Controller 799-601-9350
799-601-9290