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4N3986 ALTERNATOR GROUP*R 24 VOLT, 60 AMPERE-SIDE VIEW PART OF 7N7981 ALTERNATOR AN ATTACHMENT 3512 GEN SET ENGINE


ELECTRICAL AND STARTING SYSTEM
ALTERNATOR GP-CHARGING

GEN SET ENGINE 3512 GEN SET ENGINE 24Z
 3512 GENERATOR SET ENGINE 24Z00001-01316 SEBP1281 3512 24Z   (1981)

ELECTRICAL AND STARTING SYSTEM

ALTERNATOR GP-CHARGING
7N-7986 ALTERNATOR GP-CHARGING
7N-7981 ALTERNATOR GP-CHARGING
ALTERNATOR GP-CHARGING
4N-3986 ALTERNATOR GP-CHARGING
ALTERNATOR GP-CHARGING
4N-3986 ALTERNATOR GP-CHARGING
ALTERNATOR GP-CHARGING
4N-3987 ALTERNATOR GP-CHARGING
ALTERNATOR GP-CHARGING
4N-3987 ALTERNATOR GP-CHARGING
 

#SEBP12810740
 

4N-3986: ALTERNATOR GP-CHARGING

4N3986 ALTERNATOR GROUP*R
24 VOLT, 60 AMPERE-SIDE VIEW
PART OF 7N7981 ALTERNATOR
AN ATTACHMENT
c560487 SEBP1281
4N3986 ALTERNATOR GP-CHARGING Parts scheme
  For full view, you need register

Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6N-1876 [1] HOUSING AS  
2. 9S-2396 [1] BUSHING  
3. 9N-0943 [1] PLUG-BEARING WELL  
4. 5P-3418 [1] BEARING-ROLLER  
5. 6N-1968 [1] STATOR AS  
  9S-2014 [3] CLIP  
  9N-0939 [1] GROMMET  
6. 9N-0942 [1] PLATE-COVER  
7. 2P-5616 [1] FRAME-DRIVE END  
8. 9S-2390 [1] RETAINER  
9. 9N-0937 [1] RECTIFIER AS  
10. 9S-2302 [1] ROTOR AS  
11. 5P-7807 [1] BALL BEARING  
12. 100-6531 [1] FAN-ALTERNATOR  
13. 5P-3419 [1] RACE-BEARING-INNER  
14. 7F-7621 [1] WASHER  
15. 2K-4821 [1] LOCKNUT  
16. 6N-1945 [1] COIL AS-FIELD  
17. 9X-2500 [4] SCREW-HEX FLANGE  
18. 9N-3388 [5] SCREW-SELF LOCKING  
19. 100-6532 [1] COLLAR-ALTERNATOR  
20. 9S-2009 [4] SCREW-HEAD  
 

#SEBP12810741
 

4N-3986: ALTERNATOR GP-CHARGING

4N3986 ALTERNATOR GROUP-24 VOLT, 60 AMPERE-END VIEW*R
PART OF 7N7981 ALTERNATOR
AN ATTACHMENT
c560488 SEBP1281
4N3986 ALTERNATOR GP-CHARGING Parts scheme
  For full view, you need register

Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6N-1944 [1] DIODE AS  
2. 6N-1870 [2] SCREW AS  
  8M-6701 [3] WASHER 12.7MM(.5IN)OD  
  6N-1856 [4] BUSHING  
3. 8T-0328 [2] WASHER-HARD 10MM(.39IN)OD  
4. 9S-2544 [7] SCREW-HEX HEAD  
5. 9B-7233 [11] LOCKWASHER  
6. 4B-2043 [4] NUT  
7. 6V-8187 [2] NUT  
8. 1H-3244 [2] LOCKWASHER  
9. 6N-1925 [1] BRACKET  
10. 6N-1946 [1] CAPACITOR AS  
11. 6N-1872 [3] SCREW AS  
12. 3T-6354 [1] REGULATOR AS  
13. 6N-1873 [1] LEAD AS  
14. 2L-8075 [3] TERMINAL  
15. 8T-4205 [2] WASHER-HARD  
16. 6N-1871 [1] LEAD AS  
   
    THE FOLLOWING REPAIR
    KITS ARE AVAILABLE:
  6N-1875 [1] KIT-TERMINAL  
    (INCLUDES TERMINAL AND
    LOAD, BUSHING, WASHERS,
    NUTS AND LOCKWASHERS)
  105-3762 [1] KIT-ALTERNATOR TERMINAL  
    (INCLUDES TERMINAL,
    INSULATOR, BUSHING,
    WASHER, NUTS AND
    LOCKWASHERS)
 

#SEBP12810742
 

4N-3987: ALTERNATOR GP-CHARGING

4N3987 ALTERNATOR GROUP-32 VOLT, 60 AMPERE-SIDE VIEW*R
PART OF 7N7986 ALTERNATOR GROUP LISTED ON PAGE 195. AN ATTACHMENT
c560514 SEBP1281
4N3987 ALTERNATOR GP-CHARGING Parts scheme
  For full view, you need register

Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6N-1876 [1] HOUSING AS  
2. 9S-2396 [1] BUSHING  
3. 9N-0943 [1] PLUG-BEARING WELL  
4. 5P-3418 [1] BEARING-ROLLER  
5. 6N-1968 [1] STATOR AS  
  9S-2014 [3] CLIP  
  9N-0939 [1] GROMMET  
6. 9N-0942 [1] PLATE-COVER  
7. 2P-5616 [1] FRAME-DRIVE END  
8. 9S-2390 [1] RETAINER  
9. 9N-0937 [1] RECTIFIER AS  
10. 9S-2302 [1] ROTOR AS  
11. 5P-7807 [1] BALL BEARING  
12. 100-6531 [1] FAN-ALTERNATOR  
13. 5P-3419 [1] RACE-BEARING-INNER  
14. 7F-7621 [1] WASHER  
15. 2K-4821 [1] LOCKNUT  
16. 3T-4278 [1] COIL AS-FIELD  
17. 9X-2500 [4] SCREW-HEX FLANGE  
18. 9N-3388 [5] SCREW-SELF LOCKING  
19. 100-6532 [1] COLLAR-ALTERNATOR  
20. 9S-2009 [4] SCREW-HEAD  
 

#SEBP12810743
 

4N-3987: ALTERNATOR GP-CHARGING

4N3987 ALTERNATOR GROUP-32 VOLT, 60 AMPERE-END VIEW*R
PART OF 7N7986 ALTERNATOR
AN ATTACHMENT
c560515 SEBP1281
4N3987 ALTERNATOR GP-CHARGING Parts scheme
  For full view, you need register

Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6N-1944 [1] DIODE AS  
2. 6N-1870 [2] SCREW AS  
  8M-6701 [3] WASHER 12.7MM(.5IN)OD  
  6N-1856 [4] BUSHING  
3. 8T-0328 [2] WASHER-HARD 10MM(.39IN)OD  
4. 9S-2544 [7] SCREW-HEX HEAD  
5. 9B-7233 [11] LOCKWASHER  
6. 4B-2043 [4] NUT  
7. 6V-8187 [2] NUT  
8. 1H-3244 [2] LOCKWASHER  
9. 6N-1925 [1] BRACKET  
10. 6N-1946 [1] CAPACITOR AS  
11. 6N-1872 [3] SCREW AS  
12. 7T-5665 [1] REGULATOR AS  
13. 6N-1873 [1] LEAD AS  
14. 6N-1877 [1] CONNECTOR  
15. 9L-6771 [1] CAP  
16. 6N-1871 [1] LEAD AS  
17. 9N-0940 [1] BOOT-INSULATING  
18. 8T-4205 [2] WASHER-HARD  
19. 2L-8075 [3] TERMINAL  
   
    THE FOLLOWING REPAIR
    KITS ARE AVAILABLE:
  6N-1875 [1] KIT-TERMINAL  
    (INCLUDES TERMINAL AND
    LOAD, BUSHING, WASHERS,
    NUTS AND LOCKWASHERS)
  105-3762 [1] KIT-ALTERNATOR TERMINAL  
    (INCLUDES TERMINAL,
    INSULATOR, BUSHING,
    WASHER, NUTS AND
    LOCKWASHERS)
 

#SEBP12810744
 

3T-6352: ALTERNATOR GP-CHARGING

3T6352 ALTERNATOR GROUP-24 VOLT, 35 AMPERE-PART 1 OF 2
PART OF 6N9294 ALTERNATOR
AN ATTACHMENT
c561610 SEBP1281
3T6352 ALTERNATOR GP-CHARGING Parts scheme
  For full view, you need register

Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5P-6920 [1] BEARING-ROLLER  
2. 7N-7806 [1] COIL AS-FIELD  
3. 7N-7804 [1] STATOR AS  
4. 7N-7795 [1] COLLAR  
5. 7N-7810 [1] FRAME AS-DRIVE END  
6. 6V-2202 [1] BALL BEARING-SPL  
7. 9L-2140 [1] PLATE  
8. 8F-1434 [3] LOCKWASHER  
9. 7N-7800 [1] ROTOR AS  
10. 2K-4821 [1] LOCKNUT  
11. 7F-7621 [1] WASHER  
12. 7N-9024 [4] BOLT  
13. 9L-2139 [1] WASHER-FELT  
14. 3E-5454 [1] FAN  
15. 9S-2437 [3] SCREW-TAPPING  
16. 9L-2137 [1] RETAINER AS  
17. 7N-7809 [1] PLATE  
18. 7N-7805 [1] HOUSING  
19. 9N-3388 [4] SCREW-SELF LOCKING  
 

#SEBP12810745
 

3T-6352: ALTERNATOR GP-CHARGING

3T6352 ALTERNATOR GROUP-24 VOLT, 35 AMPERE-PART 2 OF 2
PART OF 6N9294 ALTERNATOR
AN ATTACHMENT
c595386 SEBP1281
3T6352 ALTERNATOR GP-CHARGING Parts scheme
  For full view, you need register

Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8T-0328 [2] WASHER-HARD (1MM THK)  
2. 8F-1434 [4] LOCKWASHER (5MM ID)  
3. 9L-6770 [1] CAP  
4. 030-9612 [5] SCREW-FORMING  
5. 6N-1872 C [2] SCREW AS  
6. 7N-9023 [2] SCREW AS  
7. 3T-6354 C [1] REGULATOR AS  
8. 4B-2043 [4] NUT (8-32 THD)  
9. 7N-7811 [1] CONNECTOR  
10. 7N-7122 [1] RECTIFIER AS  
11. 112-9119 [1] DIODE AS-ALTERNATOR  
12. 9B-7233 [6] LOCKWASHER (NO.8)  
13. 7N-9021 [1] SCREW AS  
  7N-7796 [1] BUSHING-TERMINAL  
14. 7N-7802 [1] CAPACITOR AS  
  3N-4082 [1] BRACKET  
15. 7N-7798 [1] CONNECTOR  
16. 7N-7801 [1] CONNECTOR  
17. 5L-4426 C [1] NUT-FULL  
  3B-4504 C [1] LOCKWASHER (.077IN THK)  
  8T-4205 [1] WASHER-HARD (2MM THK)  
18. 9S-2544 [2] SCREW-HEX HEAD  
   
   
    THE FOLLOWING REPAIR
    KITS ARE AVAILABLE:
  7N-7807 [1] KIT-TERMINAL (OUTPUT)  
    (INCL INSULATOR, SCREW,
    WASHERS, LOCKWASHER,
    NUT & ADAPTER)
  7N-7808 [1] KIT-TERMINAL ALTERNATOR  
    (INCL STUD, BUSHINGS,
    WASHERS & NUT AS)
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP12810746
 

7N-9720: ALTERNATOR GP-CHARGING

7N9720 ALTERNATOR GROUP-24 VOLT, 35 AMPERE
PART OF 6N9294 ALTERNATOR
AN ATTACHMENT
c465953 SEBP1281
7N9720 ALTERNATOR GP-CHARGING Parts scheme
  For full view, you need register

Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9G-7551 [1] BEARING  
2. 9G-7548 [1] RING  
3. 9G-7558 [1] COIL AS-FIELD  
4. 9G-7560 [1] ROTOR AS  
5. 9G-7553 [1] RING-COVER  
6. 9G-7562 [1] COVER AS  
7. 9G-7567 [1] REGULATOR AS  
8. 9G-7552 [1] BEARING  
9. 9G-7557 [4] SCREW AS  
10. 9G-7568 [1] FRAME AS-REAR  
11. 3T-1887 [1] DIODE AS  
12. 9G-7561 [1] STATOR AS  
13. 9G-7566 [1] FRAME-DRIVE END  
14. 9L-6770 C [1] CAP  
15. 9G-7549 [1] SPACER  
16. 2K-4821 [1] LOCKNUT  
17. 5C-2874 M [1] NUT  
  7X-0620 [1] WASHER-HARD  
  8F-1434 [1] LOCKWASHER  
18. 1L-9048 [1] NUT-JAM-PLATED  
  8T-5360 [1] WASHER  
  2H-3920 [1] LOCKWASHER  
19. 7F-7621 [1] WASHER  
20. 1B-8705 [1] KEY-WOODRUFF  
    THE FOLLOWING REPAIR
    KITS ARE AVAILABLE:
  9G-7554 [1] KIT-TERMINAL GROUND (INCL NUTS  
    AND LOCKWASHERS)
  9G-7555 [1] KIT-TERMINAL OUTPUT (OUTPUT-INCL NUTS  
    WASHERS AND BUSHINGS)
  9G-7556 [1] KIT-CAPACITOR (INCL CAPACITOR, SCREW,  
    AND LOCKWASHER)
  9G-7559 [1] KIT-TERMINAL RELAY (RELAY-INCL SPLICE, NUT,  
    TUBE, TERMINAL, WASHERS,
    LOCKWASHER AND BUSHING)
  9G-7565 [1] KIT-TERMINAL REGULATOR (REGULATOR-INCL NUTS,  
    LOCKWASHERS, WASHERS
    AND BUSHING)
  7T-0816 C [1] KIT-FAN (INCL FAN, SUPPORT,  
    PLATE AND SPACER)
  C   CHANGE FROM PREVIOUS TYPE
  M   METRIC PART
 

#SEBP12810747
 

9G-4574: ALTERNATOR GP-CHARGING

9G4574 ALTERNATOR GROUP-NIPPONDENSO
PART OF 6N9294 ALTERNATOR
AN ATTACHMENT
c335872 SEBP1281
9G4574 ALTERNATOR GP-CHARGING Parts scheme
  For full view, you need register

Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2K-4821 [1] LOCKNUT  
  5P-8247 [1] WASHER-HARD  
2. 1B-8705 [1] KEY-WOODRUFF  
3. 7T-2793 [1] FAN AS  
4. 7T-2792 [1] FRAME AS  
5. 7T-2794 [1] STATOR AS  
6. 7T-2790 [1] ROTOR AS  
7. 7T-2791 [1] COIL AS  
8. 7T-2798 [1] REGULATOR AS  
9. 7T-2797 [1] COVER  
10. 7T-2796 [1] HOLDER AS  
11. 7T-2795 [1] FRAME AS  
12. 7T-2801 [1] CONDENSER  
13. 9L-6770 [1] CAP  
14. 7T-2802 [1] WIRE AS  
   
    THE FOLLOWING REPAIR
    KITS ARE AVAILABLE:
  7T-2800 [1] KIT-TERMINAL (POSITIVE)  
    (INCLUDES INSULATORS,
    NUTS, LOCKWASHERS
    & WASHERS)
  7T-2804 [1] KIT-TERMINAL (RELAY)  
    (INCL. WIRE AS., CAP,
    BOLT & INSULATOR)
   
  7T-2805 [1] KIT-TERMINAL (NEGATIVE)  
    (INCLUDES INSULATORS,
    NUTS, WASHERS,
    AND LOCKWASHERS
  7T-2799 [1] KIT-BEARING  
  7T-2803 [1] KIT-HARDWARE  
    (INCL. SCREW AS.
    & BOLT AS.)
  7T-2816 [1] KIT-HARDWARE  
    (INCL. PLATE AS., PLATE,
    BOLT AS., WASHERS,
    SPACERS & RING)
 

#SEBP12810748
 

7N-7980: MOUNTING GP-ALTERNATOR

7N7980 ALTERNATOR MOUNTING GROUP-R.H.MOUNTED
REPLACED BY 1W5048
REFER TO CHART-PAGE 29 FOR USAGE
AN ATTACHMENT
c344412 SEBP1281
7N7980 MOUNTING GP-ALTERNATOR Parts scheme
  For full view, you need register

Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1571 [4] BOLT  
2. 7N-5626 [1] PULLEY  
3. 6V-8172 C [1] SEAL-LIP TYPE  
4. 7B-3235 [4] BOLT  
5. 1A-1135 [1] BOLT  
6. 8S-5383 C [1] BLOCK  
7. 1D-4720 [2] NUT  
  5P-8247 C [2] WASHER-HARD  
8. 1S-4589 [1] ROD  
9. 5P-8245 C [3] WASHER  
10. 1A-1460 C [1] BOLT 50.8MM(2IN.)LG.  
    -OR-
  7D-9766 C [1] BOLT 107.9MM(4.25IN.)LG.  
  1D-4719 C [1] NUT  
  5P-8245 C [1] WASHER  
11. 7N-2597 C [1] SPACER  
12. 1D-4719 [1] NUT  
13. 7N-5622 [1] SUPPORT-ALTERNATOR  
14. 061-9508 [1] V-BELT SET  
    (INCLUDES 2 BELTS)
15. 9L-5827 [1] PULLEY-ALTERNATOR  
16. 1D-4574 [1] BOLT 152MM(6IN.)LG.  
    -OR
  1A-0168 C [1] BOLT 190.5MM(7.5IN.)LG.  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP12810749
 

1W-5048: MOUNTING GP-ALTERNATOR

1W5048 ALTERNATOR MOUNTING GROUP
AN ATTACHMENT
c353312 SEBP1281
1W5048 MOUNTING GP-ALTERNATOR Parts scheme
  For full view, you need register

Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1571 [4] BOLT  
2. 7N-5626 [1] PULLEY  
3. 6V-8172 C [1] SEAL-LIP TYPE  
4. 7B-3235 [4] BOLT  
5. 1A-1135 [1] BOLT  
6. 8S-5383 [1] BLOCK  
7. 1D-4720 [2] NUT  
  5P-8247 C [2] WASHER-HARD  
8. 1S-4589 [1] ROD  
9. 5P-8245 C [4] WASHER  
10. 7D-9766 C [1] BOLT  
11. 7N-2597 [1] SPACER  
12. 1D-4719 C [2] NUT  
13. 7N-5622 [1] SUPPORT-ALTERNATOR  
14. 9L-4013 C [1] V-BELT SET (INCLUDES 2 BELTS)  
15. 1W-5049 [1] PULLEY  
16. 1A-0168 C [1] BOLT  
  C   CHANGE FROM PREVIOUS TYPE
 

Information:

Engine News
New Regulator And Field Coil Assemblies Used
1981/11/25
Two-Piece Guard For Alternator Fan And Belts
1982/05/12
FT1808 Cable Permits Easier Use Of 6V2100 Multitach To Check Engine Or Alternator RPM
1984/01/18
New Seal Used In Alternator Mounting Group
1984/12/12
Improved V-Belts For Alternator
1986/10/01
Identification Of External Terminals On Alternators
1987/04/01
Alternator/Generator Output Test On The Engine
1987/05/01
Remanufactured Heavy-Duty Starters And High-Amp Alternators
1987/06/01
8T5314 Socket Adapter Available To Correctly Install Alternator Pulley Nut
1988/01/01
New Wear Sleeve Available For Alternator Drive Pulley
1988/02/01
New Alternator Drive Pulley Has Hardened Wear Sleeve; New Seal Used On Pulley
1989/01/01
New Design Alternator Belt Used
1989/09/01
New Spacer Used In Attachment Alternator Belt Guard Group
1989/11/01
New Alternator Drive Pulley Seal Used With New Drive Pulley; Poly-Vee Belt Can Be Installed
1990/11/01
New Tube And Bracket Provide Clearance For Alternator
1991/01/01
New Alternator Guard Used In Belt Guard Groups
1993/03/01
A New Seal Is Used In The Alternator Mounting Group {1405}
2000/11/01
Repair Parts Available for Alternator R-Terminal {1405}
2000/12/01
Harness Repair of Alternator R-Terminal Connector {1405}
2000/12/01
Improved Alternator Adjusting Rod {1405}
2005/03/07
Improved Design for the Alternator Guard Assembly {7168}
2005/05/30
Recommendations for Battery Charging for Genset Usage {1401, 1406}
2008/06/30
Cat<SUP>&reg;</SUP> Reman Announces the Availability of Additional Engine Components for Certain Engine Applications {1052, 1053, 108F, 1210, 1265, 1290, 1405, 1901, 5510}
2015/07/24
Charging System Troubleshooting Guide Has Been Updated for All Engines {1406, 7569}
Charging System Troubleshooting Guide Has Been Updated for All Engines {1406, 7569}
Operation and Maintenance Manual
Alternator - Inspect
3500 Industrial and Generator Set Engines
Special Instruction
Generator Set Start-up Checklist{1021, 1404, 7002}
Generator Set Start-up Checklist{1021, 1404, 7002}
Upgrading Alternators To Include An Integrated Circuit Regulator{1405, 1410}
Upgrading Alternators To Include An Integrated Circuit Regulator{1405, 1410}
Charging System Troubleshooting {1406}
Charging System Troubleshooting {1406}
Procedure for Replacing Regulator Kit on All Engines {1405}
Procedure for Replacing Regulator Kit on All Engines {1405}
Procedure to Install Brush Holder Assembly to End Frame on All Engines {1405}
Procedure to Install Brush Holder Assembly to End Frame on All Engines {1405}
Specifications
Alternator
DELCO REMY 20-SI SERIES ALTERNATOR
Alternator and Regulator
3500 Generator Set Engines
Alternator
30SI Series and 34SI Series Alternator
Alternator
HDB Series and M1 Series Heavy Duty Brushless Alternators
Alternator
N3 Series Brushless Alternators
Alternator and Regulator
3500 Generator Set Engines
Systems Operation
Systems Operation
DELCO REMY 20-SI SERIES ALTERNATOR
General Information
30SI Series and 34SI Series Alternator
Normal Operation
30SI Series and 34SI Series Alternator
Component Description
30SI Series and 34SI Series Alternator
Alternator
3500 Engines
General Information
HDB Series and M1 Series Heavy Duty Brushless Alternators
Normal Operation
HDB Series and M1 Series Heavy Duty Brushless Alternators
Component Description
HDB Series and M1 Series Heavy Duty Brushless Alternators
General Information
N3 Series Brushless Alternators
Component Description
N3 Series Brushless Alternators
Normal Operation
N3 Series Brushless Alternators
Testing and Adjusting
Testing And Adjusting
DELCO REMY 20-SI SERIES ALTERNATOR
T1 Alternator Output - Test
30SI Series and 34SI Series Alternator
T2 Electrical System Current - Test
30SI Series and 34SI Series Alternator
T3 Charging System - Test
30SI Series and 34SI Series Alternator
T4 Alternator Drive System - Check
30SI Series and 34SI Series Alternator
T5 Alternator Current - Test
30SI Series and 34SI Series Alternator
T6 Residual Magnetism Restoration
30SI Series and 34SI Series Alternator
T7 Identifying Source of Current Draw - Test
30SI Series and 34SI Series Alternator
T8 Alternator Overcharging - Test
30SI Series and 34SI Series Alternator
General Information
30SI Series and 34SI Series Alternator
Initial Troubleshooting Procedure
30SI Series and 34SI Series Alternator
Component - Test
30SI Series and 34SI Series Alternator
Alternator Regulator
3500 Engines
Charging System
3500 Engines
Field Winding - Test
HDB Series and M1 Series Heavy Duty Brushless Alternators
Capacitor - Test
HDB Series and M1 Series Heavy Duty Brushless Alternators
Stator - Test
HDB Series and M1 Series Heavy Duty Brushless Alternators
Rectifier - Test
HDB Series and M1 Series Heavy Duty Brushless Alternators
Residual Magnetism - Restore
HDB Series and M1 Series Heavy Duty Brushless Alternators
Regulator - Test
HDB Series and M1 Series Heavy Duty Brushless Alternators
Field Winding - Test
N3 Series Brushless Alternators
Capacitor - Test
N3 Series Brushless Alternators
Rectifier - Test
N3 Series Brushless Alternators
Stator - Test
N3 Series Brushless Alternators
Regulator - Test
N3 Series Brushless Alternators
Troubleshooting
General Information
HDB Series and M1 Series Heavy Duty Brushless Alternators
Charging System
HDB Series and M1 Series Heavy Duty Brushless Alternators
Disassembly and Assembly
Alternator
DELCO REMY 20-SI SERIES ALTERNATOR
Alternator - Disassemble
30SI Series and 34SI Series Alternator
Alternator - Assemble
30SI Series and 34SI Series Alternator
Alternator - Disassemble - M1 Series Alternator (35 Amp)
HDB Series and M1 Series Heavy Duty Brushless Alternators
Alternator - Assemble - M1 Series Alternator (35 Amp)
HDB Series and M1 Series Heavy Duty Brushless Alternators
Alternator - Assemble - HDB Series Alternator
HDB Series and M1 Series Heavy Duty Brushless Alternators
Alternator - Disassemble - HDB Series Alternator
HDB Series and M1 Series Heavy Duty Brushless Alternators
Alternator - Assemble
N3 Series Brushless Alternators
Alternator - Disassemble
N3 Series Brushless Alternators
Alternator - Remove and Install
3508, 3512 and 3516 Generator Set Engines
Service Magazine
New Regulator And Field Coil Assemblies Used{1410,1405}
1981/11/23
Two-Piece Guard For Alternator Fan And Belts{1400}
1982/05/10
New Seal Used In Alternator Mounting Group{1405,1400}
1984/12/10
Voltage Regulator Cross Reference Chart{1410,1405}
1985/07/01
Improved V-Belts For Alternator{1405}
1986/09/22
Identification Of External Terminals On Alternators{1405,1406,1400}
1987/03/23
Alternator &quot;R&quot; Terminal Wire Assembly Available For Wiring Harness Repair{1408}
1987/05/04
Alternator/Generator Output Test On The Engine{1401,1404,1405,1406}
1987/05/04
Check Alternator Output Connection Prior To Machine Delivery{1405}
1987/05/18
Remanufactured Heavy-Duty Starters And High-Amp Alternators{1405,1453}
1987/05/25
Correct Torque Value For Alternator Drive Pulley Retaining Nut Is Important{1405}
1987/11/23
8T5314 Socket Adapter Available To Correctly Install Alternator Pulley Nut {0601}
1988/01/25
New Wear Sleeve Available For Alternator Drive Pulley{1400,1405}
1988/02/15
New Alternator Drive Pulley Has Hardened Wear Sleeve; New Seal Used On Pulley{1425,1357}
1988/12/12
New 35-Ampere Alternator Used On Some Engines In Caterpillar Equipment{1405,1406}
1979/08/13
Voltage Regulator Can Cause Variable Ammeter Indications{1410,1401,1405,1406,7467}
1979/10/22
New Design Alternator Belt Used{1405,1406}
1989/09/18
New Spacer Used In Alternator Belt Guard Group{7168}
1989/10/23
New Alternator Drive Pulley Seal Used With New Drive Pulley; Poly-Vee Belt Can Be Installed {1425,1357}
1990/11/12
New Tube And Bracket Provide Clearance For Alternator{1380,1405}
1990/12/24
New Alternator Guard Used In Belt Guard Groups{7168}
1993/03/08
Repair Parts Available for Alternator R-Terminal {1405}
2000/10/02
Harness Repair of Alternator R-Terminal Connector {1405, 1408, 7553}
2000/10/02
Two New Tools Check Tension on Engine Belts {0701, 0767}
2004/05/03
Charging System Troubleshooting Guide Has Been Updated for All Machines {1406, 7569}
Charging System Troubleshooting Guide Has Been Updated for All Machines {1406, 7569}

Caterpillar Parts SIS Catalog 3512 :

7N-7981 ALTERNATOR GP-CHARGING
7N-7986 ALTERNATOR GP-CHARGING
6N-9294 ALTERNATOR GP-CHARGING
4W-6085 ALTERNATOR GP-CHARGING
7N-7981 ALTERNATOR GP-CHARGING
7N-7986 ALTERNATOR GP-CHARGING
STARTING AID GP-ETHER
8N-6414 STARTING AID GP-ETHER
CONVERSION GP-WIRING
5N-9305 CONVERSION GP-WIRING
ALTERNATOR GP-CHARGING
4N-3986 ALTERNATOR GP-CHARGING
ALTERNATOR GP-CHARGING
4N-3987 ALTERNATOR GP-CHARGING
ALTERNATOR GP-CHARGING
4N-3987 ALTERNATOR GP-CHARGING
ALTERNATOR GP-CHARGING
3T-6352 ALTERNATOR GP-CHARGING
ALTERNATOR GP-CHARGING
3T-6352 ALTERNATOR GP-CHARGING
ALTERNATOR GP-CHARGING
7N-9720 ALTERNATOR GP-CHARGING
ALTERNATOR GP-CHARGING
9G-4574 ALTERNATOR GP-CHARGING
MOUNTING GP-ALTERNATOR
7N-7980 MOUNTING GP-ALTERNATOR

Truck sale:

Caterpillar 3512, mobile generator sets, Construction
230,416 
Caterpillar 3512, mobile generator sets, Construction
- mobile generator sets
FINANZAUTO S.A.
Caterpillar 3512, mobile generator sets, Construction
230,416 
Caterpillar 3512, mobile generator sets, Construction
- mobile generator sets
FINANZAUTO S.A.
 
238,453 
Caterpillar 3512, mobile generator sets, Construction
- mobile generator sets
FINANZAUTO S.A.
Caterpillar 3512, mobile generator sets, Construction
178,974 
Caterpillar 3512, mobile generator sets, Construction
- mobile generator sets
FINANZAUTO S.A.
Caterpillar 3512, mobile generator sets, Construction
178,974 
Caterpillar 3512, mobile generator sets, Construction
- mobile generator sets
FINANZAUTO S.A.
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