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5L1749 AIR STARTING MOTOR ASSEMBLY--S.A.E. Opposite Engine Rotation SERIAL NO. 73B92 ONLY 3H3170 AIR MOTOR PARTS ARE SHOWN ON PAGE 73 G398




ELECTRICAL AND STARTING SYSTEM

STARTING MOTOR GP
 

#UE0700280080
 

5L-1749: AIR STARTING MOTOR ASSEMBLY

5L1749 AIR STARTING MOTOR ASSEMBLY--S.A.E. Opposite Engine Rotation
SERIAL NO. 73B92 ONLY
3H3170 AIR MOTOR PARTS ARE SHOWN ON PAGE 73
c79578 UE070028
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Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3H-3170 Y [1] MOTOR  
    (SEE SEPARATE ILLUSTRATION)
  1L-7398 [1] DRIVE ASSEM. (BENDIX)  
  7F-3538 [1] BUSHING  
    (PART OF HOUSING ASSEM. 5L5507)
  0S-1618 [8] BOLT  
  3B-4505 [8] LOCKWASHER  
  9F-7216 [1] SCREW  
  9F-7215 [1] RING  
  7F-5452 [1] SPRING  
  [1] STOP  
  4B-1273 [1] SCREW  
    (PARTS OF DRIVE ASSEM. 1L7398)
  5L-5507 [1] HOUSING ASSEM.  
  2B-4602 [2] PLUG  
  7F-3539 [1] WICK  
    (PARTS OF ASSEM. 5L5507)
  Y   SEPARATE ILLUSTRATION
 

#UE0700280081
 

6L-6731: MOTOR AS-AIR

6L6731 AIR STARTING MOTOR ASSEMBLY--S.A.E. Standard Engine Rotation
PART OF AIR STARTING SHOWN ON PAGE 72
3H3171 AIR MOTOR PARTS ARE SHOWN ON PAGE 74
c79543 UE070028
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Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3H-3171 Y [1] MOTOR  
    (SAE STANDARD ENGINE ROTATION)
    (SEE SEPARATE ILLUSTRATION)
  1L-7340 [1] DRIVE ASSEM. (BENDIX)  
    (SAE STANDARD ENGINE ROTATION)
  7F-3538 [1] BUSHING  
    (PART OF HOUSING ASSEM. 5L5507)
  0S-1618 [8] BOLT  
  3B-4505 [8] LOCKWASHER  
  9F-7216 [1] SCREW  
  9F-7215 [1] RING  
  7F-5452 [1] SPRING  
  [1] STOP  
  4B-1273 [1] SCREW  
    (PARTS OF DRIVE ASSEM. 1L7340)
  5L-5507 [1] HOUSING ASSEM.  
  2B-4602 [2] PLUG  
  7F-3539 [1] WICK  
    (PARTS OF ASSEM. 5L5507)
  Y   SEPARATE ILLUSTRATION
 

#UE0700280082
 

AIR STARTING

AIR STARTING--L.H.--S.A.E. Standard Engine Rotation
SERIAL NO. 73B198 TO 73B200 INCLUSIVE
6L6731 AIR STARTING MOTOR ASSEMBLY, 3L9922 WHISTLE VALVE AND
1L2073 REGULATING VALVE PARTS ARE SHOWN ON PAGES 71 AND 75
c79541 UE070028
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Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0L-1351 [4] BOLT  
2. 3B-4506 [12] LOCKWASHER  
3. [1] ADAPTER ASSEM.  
4. 5L-1723 [1] ELBOW  
5. 1D-4566 [2] BOLT  
6. 3B-4508 [8] LOCKWASHER  
7. 0S-1595 [2] BOLT  
8. 6F-9206 [1] GASKET  
9. 1A-2029 [4] BOLT  
10. 1D-4717 [6] NUT  
11. 1H-4768 [2] GASKET  
12. 6L-6731 Y [1] MOTOR ASSEM.  
    (See Separate Illustration)
13. 0S-1589 [3] BOLT  
14. 3B-4510 [6] LOCKWASHER  
15. 3H-0510 [2] GASKET  
16. 0S-1594 [2] BOLT  
17. 5L-1722 [1] BRACKET  
18. 6F-7694 [1] COCK (Shut-Off)  
19. 0S-1592 [3] BOLT  
20. 5B-7852 [1] COVER (Flywheel Housing)  
21. 6F-8856 [3] ELBOW  
22. 6F-5985 [1] COUPLING  
23. 5L-2534 [1] "U" BOLT  
24. 3L-8993 [1] NIPPLE  
25. 6F-8858 [4] NIPPLE  
26. 1L-2073 [1] VALVE (Regulator)  
27. 3L-9922 Y [1] VALVE (Whistle)  
    (See Separate Illustration)
28. 5B-7666 [1] STREET ELBOW  
29. 6L-4347 [1] LUBRICATOR  
30. 0S-1587 [4] BOLT  
31. 3L-1258 [1] NIPPLE  
32. 6L-1849 [1] FLANGE  
33. 6F-9206 [1] GASKET  
34. 5F-6658 [1] JAR  
35. 4F-7835 [1] RING  
36. 1H-4725 [1] SILENCER  
  Y   SEPARATE ILLUSTRATION
 

#UE0700280083
 

3H-3170: MOTOR GP-AIR STARTING

3H3170 AIR MOTOR--S.A.E. Opposite Engine Rotation
PART OF 5L1749 AIR STARTING MOTOR ASSEMBLY SHOWN ON PAGE 71
c77394 UE070028
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Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3L-3685 [5] VANE  
  7F-5143 [1] ROTOR  
  7F-5136 [1] PLATE ASSEM.  
  7F-5138 [1] DOWEL (.437" THICK)  
  7F-5139 [1] DOWEL (.50" THICK)  
  2F-4547 [4] DOWEL (.25" DIA.)  
    (PARTS OF PLATE ASSEM. 7F5136)
  3H-1660 [2] RING  
  7F-5421 [2] SHIM (.002" THICK)  
  7F-5422 [2] SHIM (.003" THICK)  
  7F-5423 [1] SHIM (.005" THICK)  
  4B-4731 [1] BEARING  
  7F-5154 [1] NUT  
  7F-5155 [1] LOCKWASHER  
  7F-5156 [1] GASKET  
  7F-9504 [3] PLUG  
  2B-2695 [4] BOLT  
  3B-4505 [4] LOCKWASHER  
  2L-6221 [1] COVER  
  4B-3388 [8] BOLT  
  3B-4505 [8] LOCKWASHER  
  7F-5145 [1] HOUSING  
  7F-6284 [1] RACE  
  7F-6283 [1] BEARING  
  2L-6220 [1] HOUSING  
  7F-5157 [1] GASKET  
  7F-5171 [1] WASHER  
  7F-5159 [1] RING  
  7F-5164 [7] BOLT  
  3B-4505 [7] LOCKWASHER  
  6L-6705 [1] COVER  
  0S-1614 [3] BOLT  
  3B-4504 [3] LOCKWASHER  
  7F-5158 [1] PLATE  
  1B-8710 [2] KEY  
  7F-5151 [1] SHAFT  
  7F-5153 [1] BEARING  
  7F-5149 [1] GEAR  
  7F-5162 [1] NUT  
  7F-5161 [1] LOCKWASHER  
  7F-5152 [1] RING  
  7F-5154 [1] NUT  
  7F-5155 [1] LOCKWASHER  
  7F-5148 [1] GEAR  
  5B-1975 [1] BEARING ASSEM.  
  5B-1974 [1] RACE  
  7F-5141 [1] PLATE ASSEM.  
  7F-5138 [1] DOWEL (.437" DIA.)  
  7F-5139 [1] DOWEL (.50" DIA.)  
  2F-4547 [4] DOWEL (.25" DIA.)  
    (PARTS OF PLATE ASSEM. 7F5141)
  1B-2719 [8] BOLT  
  3B-4505 [8] LOCKWASHER  
  7F-5160 [1] GASKET  
 

#UE0700280084
 

3H-3171: LUG

3H3171 AIR MOTOR--S.A.E. Standard Engine Rotation
PART OF 6L6731 AIR STARTING MOTOR ASSEMBLY SHOWN ON PAGE 71
c38838 UE070028
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Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3H-3169 [1] HOUSING  
  9F-7838 [5] VANE  
  7F-5143 [1] ROTOR  
  7F-5136 [1] PLATE ASSEM.  
  7F-5138 [1] DOWEL (7/16" DIA.)  
  7F-5139 [1] DOWEL (1/2" DIA.)  
  2F-4547 [4] PIN (1/4" DIA.)  
    (PARTS OF ASSEM. 7F5136)
  3H-1660 [1] RING  
  4B-4731 [1] BEARING  
  2B-7409 [5] PLUG  
  7F-9504 [1] PLUG  
  7F-5154 [1] NUT  
  7F-5155 [1] LOCKWASHER  
  7F-5421 SHIM (.002")  
  7F-5422 SHIM (.003")  
  7F-5423 SHIM (.005")  
    (USE AS REQUIRED)
  2B-2695 [4] CAP SCREW  
  3B-4505 [4] LOCKWASHER  
  7F-5147 [1] COVER  
  7F-5156 [1] GASKET  
  4B-3388 [8] CAP SCREW  
  3B-4505 [8] LOCKWASHER  
  7F-5149 [1] GEAR  
  7F-6284 [1] RACE  
  7F-6283 [1] BEARING ASSEM.  
  7F-5157 [1] GASKET  
  7F-5146 [1] COVER  
  7F-5164 [7] CAP SCREW  
  3B-4505 [7] LOCKWASHER  
  7F-5158 [1] PLATE  
  0S-1614 [3] CAP SCREW  
  3B-4504 [3] LOCKWASHER  
  7F-5153 [1] BEARING  
  1B-8710 [2] KEY  
  7F-5151 [1] SHAFT  
  7F-5162 [1] NUT  
  7F-5161 [1] LOCKWASHER  
  7F-5159 [1] RING  
  7F-5171 [1] WASHER  
  7F-5154 [1] NUT  
  7F-5155 [1] LOCKWASHER  
  2B-9394 [1] BEARING ASSEM.  
  7F-5152 [1] RING  
  7F-5148 [1] GEAR  
  5B-1974 [1] RACE  
  3H-1660 [1] RING  
  7F-5160 [1] GASKET  
  7F-5141 [1] PLATE ASSEM.  
  7F-5138 [1] DOWEL (7/16" DIA.)  
  7F-5139 [1] DOWEL (1/2" DIA.)  
  2F-4547 [4] PIN (1/4" DIA.)  
    (PARTS OF ASSEM. 7F5141)
  1B-2719 [8] CAP SCREW  
  3B-4505 [8] LOCKWASHER  
  7F-5145 [1] HOUSING  
 

#UE0700280085
 

3L-9922: VALVE GP-WHISTLE

3L9922 WHISTLE VALVE
PART OF 5L2717 AIR STARTING INSTALLATION GROUP AND
AIR STARTING SHOWN ON PAGES 70 AND 72
c59307 UE070028
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Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4L-2803 [1] LEVER ASSEM.  
  4L-3054 [1] GLAND  
  4L-2804 [1] PACKING  
  4L-3055 [1] STEM  
  4L-2808 [1] NUT  
  4L-2805 [1] DISC  
  4L-2807 [1] HOLDER  
  4L-2806 [1] SPRING  
 

#UE0700280086
 

1L-2073: VALVE GP-PRESSURE REDUCING

1L2073 PRESSURE REDUCING REGULATING VALVE
PART OF 5L2717 AIR STARTING INSTALLATION GROUP AND
AIR STARTING SHOWN ON PAGES 70 AND 72
c76028 UE070028
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Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1H-9568 [1] SCREW  
  1L-9048 [1] NUT  
  1H-9569 [1] BUTTON  
  [1] CHAMBER  
  1L-9049 [1] SPRING  
  1H-9572 [1] PLATE  
  1L-9080 [6] BOLT  
  1L-9079 [6] NUT  
  1H-9573 [1] DIAPHRAGM  
  1H-9574 [1] BUTTON  
  1L-2072 [1] BODY  
  1H-9575 [1] CYLINDER  
  1H-9577 [1] SCREEN  
  1H-9576 [1] PISTON ASSEM.  
  1H-9578 [1] SPRING  
  1H-9580 [1] GASKET  
  5B-7890 [1] PLUG  
  1H-9581 [1] PLUG ASSEM.  
 

#UE0700280087
 

8F-0256: AIR STARTING OILER

8F256 AIR STARTING OILER
PART OF 5L2717 AIR STARTING INSTALLATION GROUP
SHOWN ON PAGE 70
c29508 UE070028
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Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  7F-5307 [1] PLUG  
  7F-5306 [1] GASKET  
  7F-5305 [1] GLAND  
  7F-5304 [1] WASHER  
  7F-5303 [1] TUBE  
  7F-5302 [1] WASHER  
  7F-5309 [2] PLUG  
  [1] BODY ASSEM.  
  7F-5308 [2] GASKET  
 

#UE0700280088
 

4L-9620: RAIL GP-ENGINE SUPPORT

4L9620 ENGINE SUPPORT RAILS GROUP
c65967 UE070028
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Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2A-1538 [16] BOLT  
  0S-1626 [12] BOLT  
  3B-4512 [12] LOCKWASHER  
  1B-4331 [16] NUT  
  3B-4512 [16] LOCKWASHER  
  4L-9619 [2] SUPPORT  
 

Information:

General Service Information
Introduction
DELCO REMY CRANKING MOTORS 30-MT, 35-MT, 40-MT, 50-MT SERIES
Delco Remy
DELCO REMY CRANKING MOTORS 30-MT, 35-MT, 40-MT, 50-MT SERIES
Engine News
Special Instruction
Installation of Electric Starting Motors{1453}
Installation of Electric Starting Motors{1453}
Caterpillar PRELUB<SUP>&reg;</SUP> Diagnostics{1469}
Caterpillar PRELUB® Diagnostics{1469}
Solenoid (Starting Motor) &minus; Replace{1467}
Solenoid (Starting Motor) − Replace{1467}
Installation of New Shift Lever Assembly for All Starter Motors {1453}
Installation of New Shift Lever Assembly for All Starter Motors {1453}
Procedure to Install the Insulator on to Series Starters on All Engines {1453}
Procedure to Install the Insulator on to Series Starters on All Engines {1453}
Installation of Repair Kit-Solenoid Plunger Assembly on All Engines {1453}
Installation of Repair Kit-Solenoid Plunger Assembly on All Engines {1453}
Procedure to Install Terminal Kit on All Engines {1453}
Procedure to Install Terminal Kit on All Engines {1453}
Procedure to Install Brush Holder Assembly in All Engines {1453}
Procedure to Install Brush Holder Assembly in All Engines {1453}
Procedure to Replace Armature of Starter Motor On All Cat<SUP>&reg;</SUP> Products {1408, 1450, 1453}
Procedure to Replace Armature of Starter Motor On All Cat® Products {1408, 1450, 1453}
Procedure to Replace Commutator End (CE) Housing of Starter Motor On All Cat<SUP>&reg;</SUP> Products {1408, 1450, 1453}
Procedure to Replace Commutator End (CE) Housing of Starter Motor On All Cat® Products {1408, 1450, 1453}
Procedure to Replace Drive Assembly of Starter Motor On All Cat<SUP>&reg;</SUP> Products {1453}
Procedure to Replace Drive Assembly of Starter Motor On All Cat® Products {1453}
Specifications
Air Valves For Air Starting System
6.25" BORE ENGINE ATTACHMENTS
Air Starting Motors<BR> (3H3170, 3H3171)
6.25" BORE ENGINE ATTACHMENTS
Starter Motor
G379, G398 & G399 ENGINES
Starter Solenoids
G379, G398 & G399 ENGINES
Starting Motor
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor
Starting Motor - Delco 50-MT
Systems Operation
General Information
37-MT, 41-MT, and 42-MT Series Starting Motors
Component Description
37-MT, 41-MT, and 42-MT Series Starting Motors
Normal Operation
37-MT, 41-MT, and 42-MT Series Starting Motors
Component Description
Starting Motor - Delco 50-MT
General Information
Starting Motor - Delco 50-MT
Normal Operation
Starting Motor - Delco 50-MT
Testing and Adjusting
No Load - Test
37-MT, 41-MT, and 42-MT Series Starting Motors
Brush and Brush Holder - Check
37-MT, 41-MT, and 42-MT Series Starting Motors
Pinion Clearance - Adjust
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor Solenoid - Test
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor Solenoid - Test
Starting Motor - Delco 50-MT
Field Winding - Test
Starting Motor - Delco 50-MT
Armature - Test
Starting Motor - Delco 50-MT
Brush and Brush Holder - Check
Starting Motor - Delco 50-MT
Pinion Drive - Check
Starting Motor - Delco 50-MT
No Load - Test
Starting Motor - Delco 50-MT
Pinion Clearance - Adjust
Starting Motor - Delco 50-MT
Troubleshooting
Starting Motor Does Not Turn or Turns Slowly
37-MT, 41-MT, and 42-MT Series Starting Motors
General Information
37-MT, 41-MT, and 42-MT Series Starting Motors
General Information
Starting Motor - Delco 50-MT
Pinion Does Not Engage Ring Gear
Starting Motor - Delco 50-MT
Disassembly and Assembly
Air Starting Motor
6.25" BORE ENGINE ATTACHMENTS
Electric Starting Motors
G379, G398 & G399 ENGINES
Starting Motor - Disassemble - 37-MT and 41-MT
37-MT, 41-MT, and 42-MT Series Starting Motors
General Information
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor - Assemble - 37-MT and 41-MT
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor - Disassemble - 42-MT
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor - Assemble - 42-MT
37-MT, 41-MT, and 42-MT Series Starting Motors
General Information
Starting Motor - Delco 50-MT
Starting Motor - Disassemble
Starting Motor - Delco 50-MT
Starting Motor - Assemble
Starting Motor - Delco 50-MT
Service Magazine

Caterpillar Parts SIS Catalog G398 :

Truck sale:

USD $50,000 
1980 CAT G398

Foley Equipment Company
Topeka Area, Kansas
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