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STARTING MOTOR-24 Volt 3A1872 Motor parts are shown on Pages 42 and 43 Refer also to Page 131 for special parts 930


ELECTRICAL AND STARTING SYSTEM
STARTING MOTOR GP
ALTERNATOR GP-CHARGING

WHEEL LOADER 930 WHEEL LOADER 79J
 930 WHEEL LOADER 79J00001-02223 (MACHINE) UEH0112S 930 79J   (1978)

ELECTRICAL AND STARTING SYSTEM

STARTING MOTOR GP
STARTING MOTOR
STARTING MOTOR
MOTOR ASSEMBLY
3A-1872 MOTOR ASSEMBLY
3A-1872 MOTOR ASSEMBLY
STARTING MOTOR GP-ELECTRIC
7S-3622 STARTING MOTOR GP-ELECTRIC
STARTING MOTOR ASSEMBLY
9M-1662 STARTING MOTOR ASSEMBLY
9M-1662 STARTING MOTOR ASSEMBLY
 

#UEH0112S0070
 

STARTING MOTOR

STARTING MOTOR-24 Volt
3A1872 Motor parts are shown on Pages 42 and 43
Refer also to Page 131 for special parts
c107228 UEH0112S
None STARTING MOTOR Parts scheme
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Parts for your 930 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1589 [2] BOLT  
2. 3B-4510 [3] LOCKWASHER  
3. 4H-7869 [1] GASKET  
4. 3A-1872 Y [1] MOTOR ASSEM.  
    (See Separate Illustration)
5. 9F-4337 [1] WIRE ASSEM.  
6. 7F-8032 [1] TERMINAL  
7. 9F-5509 [2] INSULATOR  
8. 9F-3068 [1] TERMINAL  
    (Parts of 9F4337 Assem.)
9. 8S-2332 [1] BOLT  
  Y   SEPARATE ILLUSTRATION
 

#UEH0112S0071
 

3A-1872: MOTOR ASSEMBLY

3A1872 MOTOR ASSEMBLY--24 Volt--Part 1
Part of 6A3094 Starting Motor Group shown on Page 41
c216624 UEH0112S
3A1872 MOTOR ASSEMBLY Parts scheme
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Parts for your 930 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
8. 6H-3622 [1] BOLT  
  4F-9676 [1] WASHER  
9. 1D-4719 [4] NUT  
  6F-9005 [4] NUT (Jam)  
  3B-4508 [4] LOCKWASHER  
  7F-0560 [3] WASHER  
31. 3A-4899 [1] ADAPTER (T)  
  3A-1559 A [1] KIT (brushes) A  
  3A-2288 B-1 [1] KIT (hardware-part 1) B-1  
  3A-2289 B-2 [1] KIT (hardware-part 2) B-2  
  3A-2290 B-3 [1] KIT (hardware-part 3) B-3  
  3A-1565 C [1] KIT (bearing) C  
  3A-1567 D [1] KIT (lever housing assem.) D  
  3A-2859 E [1] KIT (clutch assem.) E  
    -OR-
  3A-4900 T [1] KIT (clutch assem.) T  
  3A-1631 F [1] KIT (pinion assem.) F  
  3A-1868 G [1] KIT (support and brush assem.) G  
  3A-1870 H [1] KIT (drive housing assem.) H  
  3A-1871 I [1] KIT (frame assem.) I  
  3A-3956 J [1] KIT (pinion) J  
 

#UEH0112S0072
 

3A-1872: MOTOR ASSEMBLY

3A1872 MOTOR ASSEMBLY--24 Volt--Part 2
Part of 6A3094 Starting Motor Group shown on Page 41
c209927 UEH0112S
3A1872 MOTOR ASSEMBLY Parts scheme
  For full view, you need register

Parts for your 930 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
26. 3A-4580 [1] COIL ASSEM. (field)  
  3A-1555 J [1] KIT (Switch Assem.) J  
  3A-1556 K [1] KIT (Contact) K  
  3A-1557 L [1] KIT (Carcase Assem.) L  
  3A-1560 M [1] KIT (Terminal Assem.) M  
  3A-1568 N [1] KIT (Lever Assem.) N  
  3A-1633 O [1] KIT (Seals) O  
  3A-1648 P [1] KIT (Coil Assem.) P  
    -or-
  3A-4804 S [1] KIT (Coil Assem.) S  
  3A-1867 Q [1] KIT (Armature Assem.) Q  
  3A-2291 R [1] KIT (Cover Contact) R  
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#UEH0112S0073
 

3A-1873: GENERATOR ASSEMBLY

3A1873 GENERATOR ASSEMBLY--24 Volt, 15 Ampere--Part 1
Part of Generator shown on Page 46
c106836 UEH0112S
3A1873 GENERATOR ASSEMBLY Parts scheme
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Parts for your 930 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
15. 4B-2051 [4] NUT  
  5L-3870 [2] LOCKWASHER  
  3F-3711 [2] WASHER (Steel)  
    KITS CONSISTS OF PARTS MARKED WITH CORRESPONDING LETTERS
  3A-1258 [1] KIT (Carcase Assem.) A  
  3A-1306 [1] KIT (Brushes) B  
  3A-1307 [1] KIT (Field Coil Assem.) C  
  3A-1308 [1] KIT (Support Assem.) D  
  3A-1309 [1] KIT (Terminal Assem.) E  
  3A-1311 [1] KIT (Hardware) F  
 

#UEH0112S0074
 

3A-1873: GENERATOR ASSEMBLY

3A1873 GENERATOR ASSEMBLY--24 Volt, 15 Ampere--Part 2
Part of Generator shown on Page 46
c106837 UEH0112S
3A1873 GENERATOR ASSEMBLY Parts scheme
  For full view, you need register

Parts for your 930 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
10. 6H-3622 [1] BOLT  
  4F-9676 [1] LOCKWASHER  
16. 1B-8707 [1] KEY  
17. 7H-0387 [1] NUT  
18. 7F-7621 [1] WASHER  
19. 3A-1259 [1] ARMATURE ASSEM.  
    NOTE: KITS CONSIST OF PARTS MARKED WITH CORRESPONDING LETTERS
  3A-1260 [1] KIT (Drive End Plate Assem.) G  
  3A-1287 [1] KIT (Commutator End Plate) H  
  3A-1288 [1] KIT (Fan) J  
  3A-1303 [1] KIT (Cover Assem.) K  
  3A-1304 [1] KIT (Bearings) L  
  3A-1305 [1] KIT (Seals) M  
  3A-1310 [2] KIT (Stud Assem.) N  
 

#UEH0112S0075
 

6A-3095: GENERATOR

GENERATOR (6A3095 N/S)--24 Volt, 15 Ampere
Serial No. 79J1 to 79J1072 & 79J1087 inclusive
3A1873 Generator parts are shown on Pages 44 & 45
Refer also to Page 131 for special parts
c107223 UEH0112S
6A3095 GENERATOR Parts scheme
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Parts for your 930 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7S-9800 [1] STRAP  
2. 3H-5368 [1] BOLT  
  3B-4507 [1] LOCKWASHER  
  2S-0932 [2] WASHER  
3. 0S-1595 [1] BOLT  
4. 3B-4508 [2] LOCKWASHER  
5. 7S-9749 [1] PULLEY  
6. 9S-1240 [1] NUT ASSEM.  
7. 9S-2268 [1] BRACKET  
8. 0S-1608 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
9. 2B-2006 [1] BOLT  
  1D-4719 [1] NUT  
10. 6M-9613 [1] BOLT  
  2M-0849 [1] WASHER  
11. 3A-1873 Y [1] GENERATOR ASSEM.  
    (See Separate Illustration)
12. 4B-4280 [1] WASHER  
  Y   SEPARATE ILLUSTRATION
 

#UEH0112S0076
 

3A-1874: REGULATOR ASSEMBLY

3A1874 REGULATOR ASSEMBLY
Part of Battery and Wiring shown on Pages 48 & 48B
c107531 UEH0112S
3A1874 REGULATOR ASSEMBLY Parts scheme
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Parts for your 930 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3A-1711 [1] KIT (Lead Assem.)  
    (Includes Lead Assem. & Hardware)
2. 4B-1237 [1] SCREW  
3. 4B-2049 [4] NUT  
4. 3B-4502 [4] LOCKWASHER  
5. 3H-0240 [1] WASHER  
6. 3A-1735 [1] KIT (Regulator Shock Mount)  
    (Includes Brackets, Ground Wire, Grommet Assem. and Hardware)
7. 9F-6580 [3] BOLT  
  3B-4504 [3] LOCKWASHER  
  1B-4330 [3] NUT  
 

#UEH0112S0077
 

8S-0138: GENERATOR GROUP

8S138 GENERATOR GROUP--24 Volt, 20 Ampere
Serial No. 79J1073 to 79J1086 inclusive
Also Part of 9S1252 Arrangement listed on Page 131
4M9102 Generator parts are shown on Page 135
c101744 UEH0112S
8S0138 GENERATOR GROUP Parts scheme
  For full view, you need register

Parts for your 930 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3B-1915 [1] BOLT  
  3B-4506 [1] LOCKWASHER  
  7S-9801 [1] STRAP  
  7S-9760 [1] PULLEY  
  8S-3887 [1] BOLT  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  8M-3146 [1] KIT (Shockmount)  
    (Includes such parts as Bracket Assemblies, Lead Assembly and Hardware)
  4M-9349 [1] REGULATOR ASSEM.  
  7S-9779 [1] SPACER  
  4M-9102 Y [1] GENERATOR ASSEM.  
    (See Separate Illustration)
  Y   SEPARATE ILLUSTRATION
 

#UEH0112S0078
 

9S-2563: ALTERNATOR

ALTERNATOR (9S2563 N/S)--24 Volt, 19 Ampere
Serial No. 79J1088 to 79J1466 inclusive
9S4070 Alternator parts are shown on Page 46C
Refer also to Page 134B for special parts
c135641 UEH0112S
9S2563 ALTERNATOR Parts scheme
  For full view, you need register

Parts for your 930 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-4029 [1] WIRE ASSEM.  
2. 6B-2759 [2] TERMINAL  
  7B-4826 [2] INSULATOR  
    (Parts of 9S4029 Assem.)
3. 4D-4785 [1] SWITCH ASSEM.  
4. 3B-8822 [1] ELBOW  
5. 8S-4183 [1] STRAP  
6. 0S-1585 [1] BOLT (1.5" long)  
7. 3B-4508 [2] LOCKWASHER  
8. 8M-4791 [3] WASHER  
9. 0S-1595 [1] BOLT (1.25" long)  
10. 5S-7609 [1] PULLEY  
11. 9S-4070 Y [1] ALTERNATOR ASSEM.  
    (See Separate Illustration)
12. 9S-1240 [1] NUT ASSEM.  
13. 7S-6723 [1] BRACKET  
14. 0S-1571 [1] BOLT (1.75" long)  
15. 3B-4506 [2] LOCKWASHER  
16. 0S-1619 [1] BOLT (3" long)  
17. 9S-4146 [1] WIRE ASSEM.  
18. 6B-2759 [1] TERMINAL (.38" Screw)  
  1F-7240 [1] TERMINAL (No. 10 Screw)  
  7B-4826 [2] INSULATOR  
    (Parts of 9S4146 Assem.)
19. 1D-4574 [1] BOLT (6" long)  
  Y   SEPARATE ILLUSTRATION
 

#UEH0112S0079
 

9S-2563: ALTERNATOR

ALTERNATOR (9S2563 N/S)--24 Volt, 19 Ampere
Serial No. 79J1467-Up
2P1204 Alternator parts are shown on Page 46D
Refer also to Page 134B for special parts
c137886 UEH0112S
9S2563 ALTERNATOR Parts scheme
  For full view, you need register

Parts for your 930 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1D-4574 [1] BOLT (6" long)  
2. 4D-0674 C [1] WIRE ASSEM.  
  6B-2759 [1] TERMINAL (.38" Screw)  
  1F-7240 [1] TERMINAL (No. 10 Screw)  
  7B-4826 [2] INSULATOR  
3. 0S-1619 [1] BOLT  
4. 3B-4506 [2] LOCKWASHER  
5. 8S-4183 [1] STRAP  
6. 0S-1585 [1] BOLT (1.5" long)  
7. 3B-4508 [2] LOCKWASHER  
8. 8M-4791 [3] WASHER  
9. 0S-1595 [1] BOLT (1.25" long)  
10. 5S-7609 [1] PULLEY  
11. 2P-1204 CY [1] ALTERNATOR GROUP  
    (See Separate Illustration)
12. 9S-1240 [1] NUT ASSEM.  
13. 7S-6723 [1] BRACKET  
14. 0S-1571 [1] BOLT (1.75" long)  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

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
Caterpillar Remanufactured Electric Starting Motors Are Improved {1453}
2011/05/16
Special Instruction
Current Draw Of Electric Starting Motors{1453}
Current Draw Of Electric Starting Motors{1453}
Installation of Electric Starting Motors{1453}
Installation of Electric Starting Motors{1453}
Caterpillar PRELUB<SUP>&reg;</SUP> Diagnostics{1469}
Caterpillar PRELUB® Diagnostics{1469}
Starting Motor Solenoid - Replace {1467}
Starting Motor Solenoid - 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
Starter Motors
3304 VEHICULAR ENGINE
Starter Magnetic Switches
3304 VEHICULAR ENGINE
Starter Solenoids
3304 VEHICULAR ENGINE
Starting Motor
37-MT, 41-MT, and 42-MT Series Starting Motors
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
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
Troubleshooting
Engine Does Not Crank with Starting Motor On and Pinion Engaging Ring Gear
37-MT, 41-MT, and 42-MT Series Starting Motors
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
Disassembly and Assembly
Electric Starting Motor
3304 VEHICULAR ENGINE FOR 920 & 930 WHEEL LOADERS
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
Service Magazine
Caterpillar Electric Starting Motors{1453,1407}
1982/03/22
Replacement Of Brush Holder Pins In Delco-Remy Electric Starting Motors{1453}
1982/06/28
Adjust Bosch Solenoid If Replaced Or Reinstalled{1407,1453}
1986/11/10
New Electric Starting Motor Has Longer Brush Life{1453}
1977/11/14
12-Volt Starter Solenoid Available For 7T2265 And 7T2266 Starting Motors{1407}
1987/02/16
Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts{1400,1450}
1987/03/16
Testing The Starter On The Engine{1401,1450}
1987/05/04
Remanufactured Heavy-Duty Starters And High-Amp Alternators{1405,1453}
1987/05/25
Be Sure Battery Cable-To-Starter Connection Has Correct Torque{1453}
1988/03/14
Magnetic Switches (Starter Relays) Improved{1450}
1988/03/14
Two Plug Assemblies (Booster Cables) Are Available To Start Machines{1401,1453}
1979/11/05
Limitations On Engine Cranking Time{1453,1401}
1989/03/27
Causes And Effects Of Low Battery Voltage On Electric Starters{1401,1453,1467}
1989/04/24
New PRELUB Systems Available For Medium To Large Caterpillar Construction Equipment {1319}
1992/04/06
0R5207 Remanufactured Starter May Not Fit In Some Applications{1453}
1993/11/29
Special Instruction, REHS1129, "Starting Motor Solenoid - Replace" Is Available {1467}
2001/08/13
Improved Remanufactured Heavy-Duty Electrical Starting Motors Are Available {1453}
2001/10/29
Field Replacement of Remanufactured Starting Motors and Remanufactured Alternators {1405, 1453}
2001/11/19
New Starting Motors Used {1453}
2002/05/13
Examine Failed Starting Motors to Understand the Reason for Failure {1453}
2002/10/28

Caterpillar Parts SIS Catalog 930 :

ENGINE WIRING
ENGINE WIRING
OIL FILTER GROUP
2P-0916 OIL FILTER GROUP
TORQUE CONVERTER OIL COOLER
8S-4672 TORQUE CONVERTER OIL COOLER
OIL FILTER ASSEMBLY
7S-6638 OIL FILTER ASSEMBLY
OIL FILTER, COOLER AND LINES
2P-0915 OIL FILTER, COOLER AND LINES
OIL FILTER, COOLER AND LINES
5S-7252 OIL FILTER, COOLER AND LINES
OIL FILTER, COOLER AND LINES
5S-7252 OIL FILTER, COOLER AND LINES
OIL PUMP ASSEMBLY
7S-1849 OIL PUMP ASSEMBLY
MOTOR ASSEMBLY
3A-1872 MOTOR ASSEMBLY
3A-1872 MOTOR ASSEMBLY
GENERATOR ASSEMBLY
3A-1873 GENERATOR ASSEMBLY
3A-1873 GENERATOR ASSEMBLY
GENERATOR
6A-3095 GENERATOR
REGULATOR ASSEMBLY
3A-1874 REGULATOR ASSEMBLY
GENERATOR GROUP
8S-0138 GENERATOR GROUP
ALTERNATOR
9S-2563 ALTERNATOR

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