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5N9 REGULATOR ASSEMBLY Part of 5N31 and 5N32 Generators shown on Pages 183 and 186A 3406 INDUSTRIAL ENGINE




GENERATORS

REGULATOR GP-VOLTAGE
 

#UEG0728S0780
 

5N-0009: REGULATOR ASSEMBLY

5N9 REGULATOR ASSEMBLY
Part of 5N31 and 5N32 Generators shown on Pages 183 and 186A
c117951 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. [1] REGULATOR ASSEM.  
2. [4] SCREW  
  [4] NUT  
3. [8] LOCKWASHER  
4. [6] SCREW  
5. [12] LOCKWASHER  
6. [2] CLAMP ASSEM.  
7. [4] NUT  
8. [1] CAPACITOR  
9. [2] CLAMP ASSEM.  
10. [1] CAPACITOR  
11. [1] RESISTOR ASSEM.  
12. [1] RESISTOR (Top)  
  [1] RESISTOR (Bottom)  
13. [1] CAPACITOR ASSEM.  
14. [2] SCREW  
15. [1] STRIP (Terminal Marker)  
16. [1] STRIP (Terminal)  
17. [1] WIRING HARNESS  
18. [1] REACTOR ASSEM.  
19. [1] STRIP (Insulator)  
20. [1] FUSE HOLDER  
21. [1] FUSE (10 Amps)  
22. [2] SCREW  
  [2] NUT  
  [2] LOCKWASHER  
23. [1] RHEOSTAT ASSEM.  
24. [1] VOLTAGE SUPPRESSOR  
25. [1] RHEOSTAT ASSEM.  
26. [2] SCREW  
27. [1] POTENTIOMETER  
28. [1] RECTIFIER ASSEM.  
29. [1] RECTIFIER ASSEM. (Field)  
30. [1] RECTIFIER ASSEM. (Cont.)  
31. C [2] SCREW  
  C   INDICATES CHANGE
 

#UEG0728S0781
 

3N-7751: REGULATOR AS

3N7751 REGULATOR ASSEMBLY
Part of 5N30, 5N33, 5N66 and 5N69 Generators shown on Pages 181, 181B and 189
c217967 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5N-1848 C [1] REGULATOR ASSEM.  
2. 3N-1479 [1] RECTIFIER ASSEM.  
    (Includes)
3. 3N-1482 [1] RECTIFIER ASSEM. (field)  
4. 3N-1481 [1] RECTIFIER ASSEM. (cont.)  
5. 3N-4471 [1] INSULATOR  
6. 3N-2044 [2] CLAMP ASSEM.  
7. 8L-5832 [4] NUT  
8. 2N-7151 [1] CAPACITOR  
9. 3N-2045 [1] CLAMP ASSEM.  
10. 7L-7400 [1] CAPACITOR  
11. 3N-2046 [1] RESISTOR ASSEM.  
    (Includes)
12. 3N-2047 [1] RESISTOR  
  3N-2048 [1] RESISTOR (bottom)  
13. 3N-2049 [1] CAPACITOR ASSEM.  
14. 6L-7004 [1] POTENTIOMETER  
15. 3N-2055 [1] STRIP (terminal marker)  
16. 3N-2056 [1] STRIP (terminal)  
17. 3N-7749 [1] WIRING HARNESS  
18. 3N-2043 [1] REACTOR ASSEM.  
19. 5N-3959 C [1] LABEL (Indentity)  
20. 3N-2051 [1] FUSE HOLDER  
21. 3N-2050 [1] FUSE (10 amps)  
22. 3N-7750 [1] PROTECTOR  
  3N-7752 [2] SPACER  
23. 3N-2040 [1] RHEOSTAT ASSEM.  
24. 3N-2042 [1] VOLTAGE SUPPRESSOR  
25. 3N-2041 [1] RHEOSTAT ASSEM.  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  3N-5536 [1] KIT (hardware)  
    (Includes Screws, Nuts, and Lockwashers)
  C   INDICATES CHANGE
 

#UEG0728S0782
 

3N-7748: REGULATOR AS

3N7748 REGULATOR ASSEMBLY
Part of 5N31, 5N32, 5N34, 5N35, 5N64, 5N65, 5N67, 5N68, 5N70 and 5N71 Generators shown on Pages 185, 187, 191 and 193
c217966 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5N-1849 C [1] REGULATOR ASSEM.  
6. 3N-2044 [2] CLAMP ASSEM.  
7. 8L-5832 [4] NUT  
8. 2N-7151 [1] CAPACITOR  
9. 3N-2045 [2] CLAMP ASSEM.  
10. 7L-7400 [1] CAPACITOR  
11. 3N-2046 [1] RESISTOR ASSEM.  
    (Includes)
12. 3N-2047 [1] RESISTOR (top)  
  3N-2048 [1] RESISTOR (bottom)  
13. 3N-2049 [1] CAPACITOR ASSEM.  
15. 3N-2055 [1] STRIP (terminal marker)  
16. 3N-2056 [1] STRIP (terminal)  
17. 3N-7749 [1] WIRING HARNESS  
18. 3N-2043 [1] REACTOR ASSEM.  
19. 5N-3959 C [1] LABEL (identify)  
20. 3N-2051 [1] FUSE HOLDER  
21. 3N-2050 [1] FUSE (10 amps)  
22. 3N-7750 [1] PROTECTOR  
  3N-7752 [2] SPACER  
23. 3N-2040 [1] RHEOSTAT ASSEM  
24. 3N-2042 [1] VOLTAGE SUPPRESSOR  
25. 3N-2041 [1] RHEOSTAT ASSEM  
27. 6L-7004 [1] POTENTIOMETER  
28. 3N-1479 [1] RECTIFIER ASSEM.  
    (Includes)
29. 3N-1482 [1] RECTIFIER ASSEM. (field)  
30. 3N-1481 [1] RECTIFIER ASSEM. (cont.)  
31. 3N-4471 [1] INSULATOR  
    THE FOLLOWING REPAIR KIT IS AVAILABLE
  3N-5536 [1] KIT (hardware)  
    (Includes Screws, Nuts, and Lockwashers)
  C   INDICATES CHANGE
 

#UEG0728S0783
 

3N-9113: ROTOR ASSEMBLY

3N9113 ROTOR ASSEMBLY
Part of 5N33, 5N34 and 5N35 Generators shown on Pages 188B, 190B and 192B
c205783 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3N-8972 [1] HEAT SINK ASSEM. (Positive)  
2. 9B-7233 [2] LOCKWASHER  
3. 3N-8968 [3] RECTIFIER ASSEM.  
4. 3N-1958 [2] TUBE  
5. 3N-1961 [1] VOLTAGE SUPPRESSOR  
6. 3N-1960 [1] CLAMP  
7. 3N-1959 [1] RESISTOR ASSEM.  
8. 7S-1197 [1] SCREW  
  4B-2043 [1] NUT  
9. 2N-7620 [1] FAN ASSEM.  
  2N-7285 [1] SCREW  
10. 3L-9963 [1] HUB  
11. 3N-8973 [1] HEAT SINK ASSEM. (negative)  
    (Includes)
12. 9B-7233 [1] LOCKWASHER  
13. 3N-1970 [1] VOLTAGE SUPPRESSOR  
14. 3N-1958 [2] TUBE  
15. 3N-8969 [3] RECTIFIER ASSEM.  
16. 1H-4336 [2] SCREW  
  8L-5832 [2] NUT  
  8F-1434 [2] LOCKWASHER  
17. 3D-9799 [4] SCREW  
  9B-7233 [4] LOCKWASHER  
18. 3N-1645 [4] SCREW  
  4L-6499 [4] WASHER  
19. 3N-1965 [1] BEARING  
20. 6S-1753 [1] RING  
21. 3N-9115 [2] TERMINAL STRIP  
    (Mounted on Rotor Fan)
 

#UEG0728S0784
 

3N-9410: ROTOR ASSEMBLY

3N9410 ROTOR ASSEMBLY
Part of 5N30, 5N31 and 5N32 Generators shown on Pages 180B, 184B and 186D
c205806 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3N-8972 [1] HEAT SINK ASSEM. (Positive)  
2. 9B-7233 [2] LOCKWASHER  
3. 3N-8968 [3] RECTIFIER ASSEM.  
4. 3N-1958 [2] TUBE  
5. 3N-1961 [1] VOLTAGE SUPPRESSOR  
6. 3N-1960 [1] CLAMP  
7. 3N-1959 [1] RESISTOR ASSEM.  
8. 7S-1197 [1] SCREW  
  4B-2043 [1] NUT  
9. 2N-7620 [1] FAN ASSEM.  
  2N-7285 [1] SCREW  
10. 3L-9963 [1] HUB  
11. 3N-8973 [1] HEAT SINK ASSEM. (negative)  
    (Includes)
12. 9B-7233 [1] LOCKWASHER  
13. 3N-1970 [1] VOLTAGE SUPPRESSOR  
14. 3N-1958 [2] TUBE  
15. 3N-8969 [3] RECTIFIER ASSEM.  
16. 1H-4336 [2] SCREW  
  8L-5832 [2] NUT  
  8F-1434 [2] LOCKWASHER  
17. 3D-9799 [4] SCREW  
  9B-7233 [4] LOCKWASHER  
18. 3N-1645 [4] SCREW  
  4L-6499 [4] WASHER  
19. 3N-1965 [1] BEARING  
20. 6S-1753 [1] RING  
21. 3N-9115 [2] STRIP  
 

#UEG0728S0785
 

5N-2659: ROTOR ASSEMBLY

5N2659 ROTOR ASSEMBLY
Part of 5N35 Generator shown on Page 193A
c175820 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3N-8972 [1] HEAT SINK ASSEM. (positive)  
    (Includes)
2. 9B-7233 [2] LOCKWASHER  
3. 3N-8968 [3] RECTIFIER ASSEM.  
4. 3N-1958 [2] TUBE  
5. 3N-1961 [1] VOLTAGE SUPPRESSOR  
6. 3N-1960 [1] CLAMP  
7. 3N-1959 [1] RESISTOR ASSEM.  
8. 7S-1197 [1] SCREW  
9. 4B-2043 [1] NUT  
10. 5N-2674 [1] HUB  
11. 3N-8973 [1] HEAT SINK ASSEM. (negative)  
    (Includes)
12. 9B-7233 [1] LOCKWASHER  
13. 3N-1970 [1] VOLTAGE SUPPRESSOR  
14. 3N-1958 [2] TUBE  
15. 3N-8969 [3] RECTIFIER ASSEM.  
16. 1H-4336 [2] SCREW  
  8L-5832 [2] NUT  
  8F-1434 [2] LOCKWASHER  
17. 3D-9799 [4] SCREW  
  9B-7233 [4] LOCKWASHER  
18. 3N-1645 [4] SCREW  
  4L-6499 [4] WASHER  
19. 3N-1965 [1] BEARING  
20. 6S-1753 [1] RING  
21. 3N-9115 [2] TERMINAL STRIP  
    (Mounted on Rotor Fan)
22. 5N-6497 C [1] CORE ASSEM.  
  C   INDICATES CHANGE
 

#UEG0728S0786
 

3N-6016: ROTOR ASSEMBLY

3N6016 ROTOR ASSEMBLY
Part of 5N30, 5N31 and 5N32 Generators shown on Pages 178, 180, 182, 184, 186 and 186B
c150028 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3N-1957 [1] HEAT SINK ASSEM. (Positive)  
2. 9B-7233 [2] LOCKWASHER  
3. 3N-1483 [3] RECTIFIER ASSEM.  
4. 3N-1958 [2] TUBE  
5. 3N-1961 [1] VOLTAGE SUPPRESSOR  
6. 3N-1960 [1] CLAMP  
7. 3N-1959 [1] RESISTOR ASSEM.  
8. 7S-1197 [1] SCREW  
  4B-2043 [1] NUT  
9. 2N-7620 [1] FAN ASSEM.  
  2N-7285 [1] SCREW  
10. 3L-9963 [1] HUB  
11. 3N-1969 [1] HEAT SINK ASSEM. (negative)  
    (Includes)
12. 9B-7233 [1] LOCKWASHER  
13. 3N-1970 [1] VOLTAGE SUPPRESSOR  
14. 3N-1958 [2] TUBE  
15. 3N-1484 [3] RECTIFIER ASSEM.  
16. 1H-4336 [2] SCREW  
  8L-5832 [2] NUT  
  8F-1434 [2] LOCKWASHER  
17. 9S-2010 [6] SCREW  
  8H-0878 [6] LOCKWASHER  
18. 3N-1645 [4] SCREW  
  4L-6499 [4] WASHER  
19. 3N-1965 C [1] BEARING  
20. 6S-1753 C [1] RING  
  C   INDICATES CHANGE
 

#UEG0728S0787
 

3N-7094: ROTOR ASSEMBLY

3N7094 ROTOR ASSEMBLY
Part of 5N33, 5N34 and 5N35 Generators shown on Pages 188, 190 and 192
c119156 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3N-1957 [1] HEAT SINK ASSEM. (Positive)  
2. 9B-7233 [2] LOCKWASHER  
3. 3N-1483 [3] RECTIFIER ASSEM.  
4. 3N-1958 [2] TUBE  
5. 3N-1961 [1] VOLTAGE SUPPRESSOR  
6. 3N-1960 [1] CLAMP  
7. 3N-1959 [1] RESISTOR ASSEM.  
8. 7S-1197 [1] SCREW  
  4B-2043 [1] NUT  
9. 2N-7620 [1] FAN ASSEM.  
  2N-7285 [1] SCREW  
10. 3L-9963 [1] HUB  
11. 3N-1969 [1] HEAT SINK ASSEM. (negative)  
12. 9B-7233 [1] LOCKWASHER  
13. 3N-1970 [1] VOLTAGE SUPPRESSOR  
14. 3N-1958 [2] TUBE  
15. 3N-1484 [3] RECTIFIER ASSEM.  
16. 1H-4336 [2] SCREW  
  8L-5832 [2] NUT  
  8F-1434 [2] LOCKWASHER  
17. 9S-2010 [6] SCREW  
  8H-0878 [6] LOCKWASHER  
18. 3N-1645 [4] SCREW  
  4L-6499 [4] WASHER  
19. 3N-1965 [1] BEARING  
20. 6S-1753 [1] RING  
 

#UEG0728S0788
 

5N-2661: ROTOR ASSEMBLY

5N2661 ROTOR ASSEMBLY
Part of 5N30 Generator shown on Page 181A
c175814 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3N-8972 [1] HEAT SINK ASSEM. (positive)  
    (Includes)
2. 9B-7233 [2] LOCKWASHER  
3. 3N-8968 [3] RECTIFIER ASSEM.  
4. 3N-1958 [2] TUBE  
5. 3N-1961 [1] VOLTAGE SUPPRESSOR  
6. 3N-1960 [1] CLAMP  
7. 3N-1959 [1] RESISTOR ASSEM.  
8. 7S-1197 [1] SCREW  
  4B-2043 [1] NUT  
9. 3N-9115 [2] STRIP  
10. 5N-2674 [1] HUB  
11. 3N-8973 [1] HEAT SINK ASSEM. (negative)  
    (Includes)
12. 9B-7233 [1] LOCKWASHER  
13. 3N-1970 [1] VOLTAGE SUPPRESSOR  
14. 3N-1958 [2] TUBE  
15. 3N-8969 [3] RECTIFIER ASSEM.  
16. 1H-4336 [2] SCREW  
  8L-5832 [2] NUT  
  8F-1434 [2] LOCKWASHER  
17. 3D-9799 [4] SCREW  
  9B-7233 [4] LOCKWASHER  
18. 3N-1645 [4] SCREW  
  4L-6499 [4] WASHER  
19. 3N-1965 [1] BEARING  
20. 6S-1753 [1] RING  
21. 5N-6497 C [1] CORE ASSEM.  
  C   INDICATES CHANGE
 

#UEG0728S0789
 

5N-4762: ROTOR AS

5N4762 ROTOR ASSEMBLY
Part of 5N65, 5N69, 5N70 and 5N71 Generators
c219600 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5N-4779 [1] SEAL  
2. 6S-1753 [1] RING  
3. 3N-1965 [1] BEARING  
4. 2N-7285 [1] SCREW  
5. 5N-4767 [1] HUB  
6. 5N-4759 [1] DISC  
 

Information:

General Service Information
Attachments
VR3 VOLTAGE REGULATOR (4/6 LEAD), SELF-EXCITED SR4 GENERATOR
Attachments
VR3 VOLTAGE REGULATOR PERMANENT MAGNET EXCITED SR4 GENERATOR
Attachments
VR4 VOLTAGE REGULATOR
Special Instruction
Replacement Of 5N1848, 5N1849 And 5N1850 A1 Module Regulator Assemblies{4467}
Replacement Of 5N1848, 5N1849 And 5N1850 A1 Module Regulator Assemblies{4467}
Upgrading Alternators To Include An Integrated Circuit Regulator{1405, 1410}
Upgrading Alternators To Include An Integrated Circuit Regulator{1405, 1410}
Systems Operation
Systems Operation
VR3 VOLTAGE REGULATOR (4/6 LEAD), SELF-EXCITED SR4 GENERATOR
Systems Operation
VR3 VOLTAGE REGULATOR PERMANENT MAGNET EXCITED SR4 GENERATOR
Systems Operation
VR4 VOLTAGE REGULATOR
Systems Operation
VR3F FLAT TOP VOLTAGE REGULATOR FOR 4/6 AND 10/12 LEAD, SELF
VR3F Voltage Regulator Connections (SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
Digital Voltage Regulator Connections (All Except SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
VR3F Voltage Regulator Connections (All Except SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
VR3 Voltage Regulator Connections (SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
Digital Voltage Regulator Connections (SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
VR4 Voltage Regulator Connections (All Except SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
VR3 Voltage Regulator Connections (All Except SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
Selection Guide for Voltage Regulator (All Except SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
Selection Guide for Voltage Regulator (SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
Testing and Adjusting
Testing And Adjusting
VR3 VOLTAGE REGULATOR (4/6 LEAD), SELF-EXCITED SR4 GENERATOR
Testing And Adjusting
VR3 VOLTAGE REGULATOR PERMANENT MAGNET EXCITED SR4 GENERATOR
Testing And Adjusting
VR4 VOLTAGE REGULATOR
Testing And Adjusting
VR3F FLAT TOP VOLTAGE REGULATOR FOR 4/6 AND 10/12 LEAD, SELF
Service Magazine

Caterpillar Parts SIS Catalog 3406 :

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