371-9666 GENERATOR GP S/N 9G81-UP 50-HERTZ. 600-VOLT. 826-FRAME, 4-POLE, 6-LEAD, 2-BEARING PART OF 371-9667 GENERATOR AR AN ATTACHMENT 3512B

GENERATORS

GENERATOR GP

0. 371-9666 GENERATOR
1. 508-4049 GENERATOR
2. 7C-9126 GENERATOR
3. 125-2114 HEAT SINK
4. 298-3648 HEAT SINK
5. 298-3648 HEAT SINK
6. 253-3528 HEATER GP-
7. 514-7316 HEATER GP-
8. 514-7316 HEATER GP-
9. 373-1057 KIT-GENERA
0. INFORMATION

GENERATOR SET 3512B GENERATOR SET 9G8
3512B Generator Set 9G800001-UP M0065548 3512B 9G8 (2016)

GENERATORS

GENERATOR GP

512-9639 GENERATOR GP

320-3715 GENERATOR GP

371-9666 GENERATOR GP

508-4049 GENERATOR GP

7C-9126 GENERATOR GP

125-2114 HEAT SINK AS

#M00655481100

371-9666: GENERATOR GP

GENERATOR GP

371-9666 GENERATOR GP
S/N 9G81-UP
50-HERTZ. 600-VOLT. 826-FRAME, 4-POLE, 6-LEAD, 2-BEARING
PART OF 371-9667 GENERATOR AR
AN ATTACHMENT

i05506101 M0065548

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Parts for your 3512B GENERATOR SET:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	391-7122 Y	[1]	STATOR GP-MAIN
2.	154-1901 Y	[1]	CONNECTION GP-TERMINAL STRIP (LOW VOLTAGE)
3.	215-2402 Y	[1]	EXCITER GP (POWER)
4.	142-4453 Y	[1]	EXCITER GP (PERMANENT MAGNET)
6.	206-5967	[1]	SLEEVE-SHAFT (SHAFT)
7.	298-3817 Y	[1]	RECTIFIER GP-REVOLVING
8.	271-0483 Y	[1]	ROTOR GP-GENERATOR
9.	145-6001 Y	[1]	SCREEN GP-AIR (AIR EXIT)
10.	145-6002 Y	[1]	SCREEN GP-AIR (AIR EXIT)
11.	141-4987 Y	[1]	COVER GP-GENERATOR
12.	154-3413 Y	[1]	ADAPTER GP-GENERATOR COUPLING

	235-8130 F	[1]	HUB-FLEXIBLE COUPLING
	F		NOT SHOWN
	Y		SEPARATE ILLUSTRATION

#M00655481101

508-4049: GENERATOR GP

GENERATOR GP

508-4049 GENERATOR GP
S/N 9G81-UP
50-HERTZ. LOW VOLTAGE. 55-FRAME. 4-POLE. 6-LEAD. 2-BEARING
PART OF 508-4050 GENERATOR AR
AN ATTACHMENT

i06903847 M0065548

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Parts for your 3512B GENERATOR SET:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	503-7008 Y	[1]	PANEL GP-ELECTRONIC
2.	503-7009 Y	[1]	BOX & MOUNTING GP
3.	508-4051 Y	[1]	ROTOR GP-GENERATOR
4.	514-7306 Y	[1]	BRACKET GP-MOUNTING
5.	514-7307 Y	[1]	TRANSFORMER GP
6.	514-7312 Y	[1]	BEARING & HOUSING GP
7.	514-7316 Y	[1]	HEATER GP-SPACE
8.	515-2403 Y	[1]	BEARING & HOUSING GP
9.	Y	[1]	BRACKET GP-MOUNTING
10.	515-2405 Y	[1]	BRACKET GP-MOUNTING
11.	518-1435 Y	[1]	STATOR GP-MAIN
	Y		SEPARATE ILLUSTRATION

#M00655481102

7C-9126: GENERATOR GP

GENERATOR GP

7C-9126 GENERATOR GP
S/N 9G81-UP
50-HERTZ. 600-VOLT. 807-FRAME, 4-POLE, 6-LEAD, 2-BEARING
PART OF 7C-9127 GENERATOR AR
AN ATTACHMENT

i06599053 M0065548

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Parts for your 3512B GENERATOR SET:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	7E-3087	[1]	FAN (12-BLADE)
2.	7E-0133	[1]	SLEEVE AS-SHAFT
3.	7W-8705	[4]	FITTING
4.	7W-8706	[2]	FITTING
5.	7W-8737	[1]	HOSE
6.	9Y-1466	[2]	DEFLECTOR
7.	4P-2479	[4]	SPACER (9.8X15.09X12.7-MM THK)
8.	9M-1974	[9]	WASHER-HARD (8.8X16X2-MM THK)
9.	7W-9971	[1]	COVER-BOTTOM
10.	7W-9984	[1]	LOUVER-BOX
11.	054-8671	[4]	MOUNT
12.	1D-4539	[5]	BOLT (5/16-18X2.5-IN)
13.	5S-7349	[1]	BOLT (1/4-20X0.5-IN)
14.	7F-9223	[2]	LOCKWASHER
15.	9Y-2902	[1]	STRAP
16.	7E-3035	[6]	BUMPER
17.	4B-2049	[6]	NUT (10-32-THD)
18.	7C-1884	[4]	MOUNT-FLEXIBLE
19.	3B-8488	[2]	FITTING-GREASE (1/8-27 PTF)
20.	7E-5021	[1]	FRAME AS
21.	7E-8355	[2]	COVER
22.	7E-8372	[1]	COVER AS-EXCITER
23.	298-3647	[1]	HEAT SINK AS
24.	0S-1571	[8]	BOLT (3/8-16X1.75-IN)
25.	107-6274	[1]	SPACER (20.57X86.36X12.45-MM THK)
26.	7W-8890	[1]	BRACKET-TERMINAL
27.	7E-8360	[1]	MARKER
28.	7E-1222	[2]	STRIP-TERMINAL
29.	7E-1223	[1]	MARKER
30.	3N-8763	[1]	STRIP-TERMINAL
31.	6L-7575	[1]	STRIP-TERMINAL
32.	7E-1224	[1]	MARKER
33.	3N-8764	[1]	FILM-CONNECTION (SPACE HEATER)
34.	4P-0348	[2]	PANEL
35.	7E-8391	[1]	COVER
36.	7E-4475	[5]	TUBE-SPACER (8.3X11.9X50.8-MM THK)
37.	7C-7525	[1]	COVER AS-TOP
	5N-3167	[10]	SEAL-RING
	5N-3176	[10]	PLUG-BUTTON
	6D-7128	[4]	SEAL-O-RING
	8P-7065	[4]	PLUG-BUTTON
	8T-9587	[4]	SEAL-O-RING
	030-2284	[4]	PLUG-BUTTON
38.	5M-2894	[8]	WASHER-HARD (10.2X18.5X2.5-MM THK)
39.	7E-5940	[1]	FILM-INFORMATION (GENERATOR WIRING DIAGRAM)
40.	110-4172	[1]	HARNESS AS-WIRING (RECTIFIER)(HEAT SINK)
41.	7E-5463	[1]	STRIP-TERMINAL
42.	7E-8356	[2]	SPACER (4.93X7.87X9.65-MM THK)
43.	7E-8354	[1]	COVER
44.	109-5179	[1]	COVER-STATOR
45.	115-5093	[1]	BRACKET AS-HOUSING
	7M-5130	[1]	PIN-SPRING
	116-7476	[1]	SLEEVE-WEAR
46.	3J-5390	[1]	PLUG (3/8-18-THD)
47.	108-3170	[1]	STATOR AS
48.	236-5562 Y	[1]	ROTOR GP-GENERATOR
49.	7E-0132	[1]	SLEEVE-SHAFT
50.	1F-5842	[4]	BOLT (5/16-18X3.25-IN)
51.	7C-9087	[1]	STATOR
52.	7C-6113	[1]	ROTOR
53.	115-5096	[1]	BRACKET AS-HOUSING
54.	108-3173	[2]	SCREEN AS (INLET)
55.	0S-1590	[4]	BOLT (3/8-16X2-IN)
56.	7E-8303	[4]	GROMMET
57.	6V-8185	[8]	NUT (1/4-20-THD)
58.	6V-8801	[4]	NUT (3/8-16-THD)
59.	1A-5964	[4]	BOLT (3/8-16X4.5-IN)
60.	5M-5845	[6]	SCREW (10-32X0.625-IN)
61.	7X-0578	[8]	WASHER-HARD (10.2X32X2.5-MM THK)
62.	7M-7410	[1]	PLUG-PIPE
63.	4M-5282	[4]	BOLT (1/4-20X1.5-IN)
64.	8T-4205	[4]	WASHER-HARD (7.2X14.5X2-MM THK)
65.	0S-1587	[12]	BOLT (1/2-13X1.75-IN)
66.	5P-8245	[12]	WASHER-HARD (13.5X25.5X3-MM THK)
67.	8F-3590	[4]	LOCKWASHER
68.	5D-1707	[1]	FITTING
69.	5B-1309	[1]	COUPLING-PIPE
70.	1A-8063	[6]	BOLT (3/4-10X2.5-IN)
71.	1D-4612	[6]	BOLT (3/4-10X4-IN)
72.	5H-1504	[12]	WASHER-HARD (20X33.5X5-MM THK)
73.	7C-9161	[2]	SEAL
74.	7E-4271	[1]	HUB-FLEXIBLE COUPLING

	108-8611 F	[1]	CARTRIDGE-GREASE

			AVAILABLE REPAIR KIT(S):
	7E-8407	[1]	KIT-ROTOR BALANCE WEIGHT (GENERATOR)
			(INCLUDES WEIGHTS, NUTS, & SCREWS)
	7W-9254	[1]	KIT-HARDWARE (GENERATOR)
			(INCLUDES SCREWS, NUTS, WASHERS, PLUGS, CAPS & BOLTS)
	7C-2696 Y	[1]	KIT-SPACE HEATER (GENERATOR)
	F		NOT SHOWN
	Y		SEPARATE ILLUSTRATION

#M00655481103

125-2114: HEAT SINK AS

HEAT SINK AS

125-2114 HEAT SINK AS
S/N 4GN1-UP; 7TN1-UP
PART OF 142-4452 RECTIFIER GP-REVOLVING

i00520700 M0065548

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Parts for your 3512B GENERATOR SET:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	2R-8159	[4]	BOLT-SOCKET HEAD (10-32X1.5-IN)
2.	4B-2043	[1]	NUT (8-32-THD)
3.	4B-2049	[4]	NUT (10-32-THD)
4.	4P-6009	[1]	VARISTOR
5.	7E-0127	[1]	RESISTOR AS
6.	7S-1197	[1]	SCREW-MACHINE (8-32X0.5-IN)
7.	9B-7233	[1]	LOCKWASHER
8.	110-4422	[1]	RECTIFIER (POSITIVE)
9.	110-4424	[1]	RECTIFIER (NEGATIVE)
10.	117-8556	[4]	WASHER (5.6X7.8X0.5-MM THK)
11.	5P-0537	[2]	WASHER-HARD (7.2X14.5X2-MM THK)
12.	9F-7022	[2]	BOLT (1/4-20X1.5-IN)
13.	9S-8750	[2]	NUT-FULL (1/4-20-THD)

#M00655481104

298-3648: HEAT SINK AS

HEAT SINK AS

298-3648 HEAT SINK AS
S/N 4GN619-UP; 7TN1-UP
PART OF 298-3817 RECTIFIER GP-REVOLVING
ALSO AN ATTACHMENT

i05095430 M0065548

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Parts for your 3512B GENERATOR SET:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	117-8556	[2]	WASHER (5.6X7.8X0.5-MM THK)
2.	6V-7978	[2]	SCREW-MACHINE (10-32X0.375-IN)
3.	4B-2049	[2]	NUT (10-32-THD)
4.	460-7022	[1]	VARISTOR AS
5.	7E-0127	[1]	RESISTOR AS
6.	178-3339	[1]	SCREW (8-32X0.5-IN)
7.	9B-7233	[1]	LOCKWASHER
8.	4B-2043	[1]	NUT (8-32-THD)

#M00655481105

298-3648: HEAT SINK AS

HEAT SINK AS

298-3648 HEAT SINK AS
S/N 9G81-UP
PART OF 298-3817 RECTIFIER GP-REVOLVING
AN ATTACHMENT

i05096010 M0065548

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Parts for your 3512B GENERATOR SET:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5P-0537	[2]	WASHER-HARD (7.2X14.5X2-MM THK)
2.	9F-7022	[2]	BOLT (1/4-20X1.5-IN)
3.	9S-8750	[2]	NUT-FULL (1/4-20-THD)
4.	4P-6009	[1]	VARISTOR
5.	7E-0127	[1]	RESISTOR AS
6.	178-3339	[1]	SCREW (8-32X0.5-IN)
7.	9B-7233	[1]	LOCKWASHER
8.	4B-2043	[1]	NUT (8-32-THD)

#M00655481106

253-3528: HEATER GP-SPACE

HEATER GP-SPACE

253-3528 HEATER GP-SPACE
S/N 7TN1-UP
GENERATOR
PART OF 294-7497, 318-5153 GENERATOR GP

i03601301 M0065548

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Parts for your 3512B GENERATOR SET:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	7W-8876	[4]	BRACKET-SPACE
2.	338-1563	[1]	HARNESS AS-WIRING (SPACE HEATER)
3.	289-0445	[2]	HEATER AS-SPACE (600-WATT)
4.	0S-1615	[8]	BOLT (1/4-20X0.75-IN)
5.	5P-0537	[8]	WASHER-HARD (7.2X14.5X2-MM THK)
6.	9S-8750	[4]	NUT-FULL (1/4-20-THD)

#M00655481107

514-7316: HEATER GP-SPACE

HEATER GP-SPACE

514-7316 HEATER GP-SPACE
S/N BK31-UP
PART OF 508-4049, 512-9639 GENERATOR GP

i06904259 M0065548

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Parts for your 3512B GENERATOR SET:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	186-0870 M	[4]	STUD-TAPERLOCK
2.	276-0753	[1]	CAP-PLUG
3.	438-8198	[4]	WASHER (10.3X23X2.5-MM THK)
4.	503-7020	[5]	CABLE GP-GENERATOR GROUND
			(EACH INCLUDES)
	503-7060 E		CABLE (36-CM)
	7X-3392	[2]	WASHER-HARD (13.5X22.5X3-MM THK)
	8T-4223	[2]	WASHER-HARD (13.5X25.5X3-MM THK)
	8T-4956 M	[2]	BOLT (M12X1.75X35-MM)
	160-0015	[2]	WASHER-SPRING
	329-3356 M	[2]	NUT (M12X1.75-THD)
5.	503-7031	[1]	TUBE
6.	503-7045	[2]	HEATER-SPACE
7.	503-7047	[1]	PLATE
8.	503-7049	[1]	PLATE
9.	504-2120	[1]	FITTING
10.	504-2125	[7]	PLUG
11.	514-5049	[3]	CLAMP
12.	514-5064	[1]	CONDUIT
13.	514-7297	[2]	PLUG
14.	514-7298	[2]	DETECTOR
15.	514-7299	[2]	FASTENER
16.	515-2393	[1]	CONNECTOR
17.	515-2394	[1]	CONNECTOR
18.	533-0039	[1]	COVER
19.	533-0040	[1]	COVER
20.	134-4126	[8]	WASHER (4.52X8.28X0.76-MM THK)
21.	281-0791 M	[4]	BOLT-SOCKET HEAD (M5X0.8X40-MM)
22.	5C-8312 M	[4]	NUT (M4X0.7-THD)
23.	6V-7357 M	[2]	BOLT (M6X1X25-MM)
24.	6V-8225 M	[2]	NUT (M6X1-THD)
25.	6V-9491 M	[4]	SCREW-MACHINE (M4X0.7X20-MM)
26.	7I-2273 M	[6]	BOLT (M5X0.8X16-MM)
27.	7X-7729	[4]	WASHER (11X25X3-MM THK)
28.	8T-0328	[10]	WASHER-HARD (5.5X10X1-MM THK)
29.	8T-4133 M	[4]	NUT (M10X1.5-THD)
30.	9X-6153 M	[3]	BOLT (M6X1X10-MM)
31.	9X-8256	[4]	WASHER (6.6X12X2-MM THK)
	E		ORDER BY THE CENTIMETER
	M		METRIC PART

#M00655481108

514-7316: HEATER GP-SPACE

HEATER GP-SPACE

514-7316 HEATER GP-SPACE
S/N 9G81-UP
PART OF 508-4049 GENERATOR GP
AN ATTACHMENT

i06904261 M0065548

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Parts for your 3512B GENERATOR SET:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	186-0870 M	[4]	STUD-TAPERLOCK
2.	276-0753	[1]	CAP-PLUG
3.	438-8198	[4]	WASHER (10.3X23X2.5-MM THK)
4.	503-7020	[5]	CABLE GP-GENERATOR GROUND
			(EACH INCLUDES)
	503-7060 E		CABLE (36-CM)
	7X-3392	[2]	WASHER-HARD (13.5X22.5X3-MM THK)
	8T-4223	[2]	WASHER-HARD (13.5X25.5X3-MM THK)
	8T-4956 M	[2]	BOLT (M12X1.75X35-MM)
	160-0015	[2]	WASHER-SPRING
	329-3356 M	[2]	NUT (M12X1.75-THD)
5.	503-7031	[1]	TUBE
6.	503-7045	[2]	HEATER-SPACE
7.	503-7047	[1]	PLATE
8.	503-7049	[1]	PLATE
9.	504-2120	[1]	FITTING
10.	504-2125	[7]	PLUG
11.	514-5049	[3]	CLAMP
12.	514-5064	[1]	CONDUIT
13.	514-7297	[2]	PLUG
14.	514-7298	[2]	DETECTOR
15.	514-7299	[2]	FASTENER
16.	515-2393	[1]	CONNECTOR
17.	515-2394	[1]	CONNECTOR
18.	533-0039	[1]	COVER
19.	533-0040	[1]	COVER
20.	134-4126	[8]	WASHER (4.52X8.28X0.76-MM THK)
21.	281-0791 M	[4]	BOLT-SOCKET HEAD (M5X0.8X40-MM)
22.	5C-8312 M	[4]	NUT (M4X0.7-THD)
23.	6V-7357 M	[2]	BOLT (M6X1X25-MM)
24.	6V-8225 M	[2]	NUT (M6X1-THD)
25.	6V-9491 M	[4]	SCREW-MACHINE (M4X0.7X20-MM)
26.	7I-2273 M	[6]	BOLT (M5X0.8X16-MM)
27.	7X-7729	[4]	WASHER (11X25X3-MM THK)
28.	8T-0328	[10]	WASHER-HARD (5.5X10X1-MM THK)
29.	8T-4133 M	[4]	NUT (M10X1.5-THD)
30.	9X-6153 M	[3]	BOLT (M6X1X10-MM)
31.	9X-8256	[4]	WASHER (6.6X12X2-MM THK)
	E		ORDER BY THE CENTIMETER
	M		METRIC PART

#M00655481109

373-1057: KIT-GENERATOR REPAIR

KIT-GENERATOR REPAIR

373-1057 KIT-GENERATOR REPAIR
S/N 4GN1-UP; 7TN1-UP
FOR USE WITH 822-FRAME, 824-FRAME, 825-FRAME, 826-FRAME, 827-FRAME, 828-FRAME
AN ATTACHMENT

i04934883 M0065548

3731057 KIT-GENERATOR REPAIR Parts scheme

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Parts for your 3512B GENERATOR SET:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name	Comments
1.	359-9732	[1]	SLEEVE-WEAR
2.	361-5555	[2]	INSULATOR

Information:

GENERATORS

GENERATOR GP

General Service Information

Safety
SR4 GENERATOR MOUNTED CONTROL PANEL FOR SPARK IGNITED (SI) E

Identification
SR4 GENERATOR MOUNTED CONTROL PANEL FOR SPARK IGNITED (SI) E

Abbreviations
SR4 GENERATOR MOUNTED CONTROL PANEL FOR SPARK IGNITED (SI) E

Symbols
SR4 GENERATOR MOUNTED CONTROL PANEL FOR SPARK IGNITED (SI) E

Components
SR4 GENERATOR MOUNTED CONTROL PANEL FOR SPARK IGNITED (SI) E

Energize To Run Engine System
SR4 GENERATOR MOUNTED CONTROL PANEL FOR SPARK IGNITED (SI) E

Schematics And Wiring Diagrams
SR4 GENERATOR MOUNTED CONTROL PANEL FOR SPARK IGNITED (SI) E

Operation
FLOOR-STANDING SWITCHGEAR

Automatic Start-Stop
FLOOR-STANDING SWITCHGEAR

Alternating Current Components Troubleshooting
FLOOR-STANDING SWITCHGEAR

Automatic Start-Stop Troubleshooting
FLOOR-STANDING SWITCHGEAR

Engine News

New Part Kits Available For SR4B Generators{4469}
1996/06/12

Special Instruction, REHS0345, "Generator Service Literature Index" Is Available {4450}
1998/11/01

New Maintenance Information For Generators{4450}
1998/12/01

Use 152-7143 Cable Assembly For Flash-Programming Generator Status Control Module{4450}
1999/02/01

Special Instruction, REHS0345-01, "Generator Service Literature Index" Is Available{4450}
1999/04/01

New Control Panel Films Show That SR4B Generators Are Not To Be Wired In The Delta Configuration{7557,7566}
1999/04/01

Improved Rectifiers Increases Service Life {4473}
2003/06/01

Proper Application and Operation of Generator Set Will Increase Varistor Life and Will Minimize Generator Set Repair Costs and Down Time {4466}
2003/10/01

Improved Rectifier Assembly Is Now Used {4465}
2005/10/10

Updated Cat EPD Alternator Failure Report Template Is Now Available for Cat Generator Sets {1404}
2011/05/25

Operation and Maintenance Manual

Bearing (Spherical Roller) - Lubricate
SR500 Generators

Insulation - Test
SR500 Generators

Stator Winding Temperature - Measure/Record
SR500 Generators

Bearing Temperature - Measure/Record
SR500 Generators

Rotating Rectifier - Test
SR500 Generators

Varistor - Test
SR500 Generators

Winding - Test
SR500 Generators

Bearing (Ball) - Lubricate - Generator
SR500 Generators

Rotating Rectifier - Test
SR500 Generators

Special Instruction

Cooling Air Filter Installation For 680 And 800 Frame Generators{7263}
Cooling Air Filter Installation For 680 And 800 Frame Generators{7263}

Generator Service Literature Index{4450}
Generator Service Literature Index{4450}

Grounding Design Guide for Electric Power Generation Products {4450, 4459}
Grounding Design Guide for Electric Power Generation Products {4450, 4459}

Generator Bearing Service {4457}
Generator Bearing Service {4457}

Instructions for Installing AssetIQTM for Commercial Generator Set Systems on Caterpillar and non-Caterpillar Products {4450, 7490}
Instructions for Installing AssetIQ^TM for Commercial Generator Set Systems on Caterpillar and non-Caterpillar Products {4450, 7490}

Technical Information Bulletin

Generator Lead Connections Can Rub Against The Terminal Box Or Each Other
Generator Lead Connections Can Rub Against The Terminal Box Or Each Other

Paralleling Generators To Utility Substations
Paralleling Generators To Utility Substations

Reported Failures Of 110-4422 Rectifiers And 110-4424 Rectifiers On 3500-Series Generator Sets
Reported Failures Of 110-4422 Rectifiers And 110-4424 Rectifiers On 3500-Series Generator Sets

Application of Thermally Conductive 4C-6715 Rectifier Silicone Kit when Installing 9Y-0916 Rectifier Assembly
Application of Thermally Conductive 4C-6715 Rectifier Silicone Kit when Installing 9Y-0916 Rectifier Assembly

Specifications

General Information
SR4 and SR4B Electric Power Generation Rewind Data

Generator Identification
SR4 and SR4B Electric Power Generation Rewind Data

Component Views
SR4 and SR4B Electric Power Generation Rewind Data

Connection Diagrams for Exciter
SR4 and SR4B Electric Power Generation Rewind Data

Connection Diagrams for Main Stator and Main Rotor
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 5N-0001 Generator through 5N-0025 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 102-2415 Generator through 108-3052 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 109-1595 Generator through 109-3774 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 5N-0027 Generator through 5N-0050 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 5N-0051 Generator through 5N-0075 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 5N-0076 Generator through 5N-0090 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 5N-0431 Generator through 5N-7207 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 111-8240 Generator through 112-1481 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 115-5101 Generator through 121-6860 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 121-6882 Generator through 123-3185 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 129-1502 Generator through 129-5034 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 5N-7208 Generator through 5N-7232 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 5N-7233 Generator through 5N-7309 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 130-0234 Generator through 130-7595 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 5N-8891 Generator through 5N-8911 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 5N-9081 Generator through 5N-9432 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 4P-2236 Generator through 4P-9907 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 4W-0183 Generator through 4W-9669 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 7C-1601 Generator through 7C-9126 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 7E-0097 Generator through 7E-9695 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 7W-1877 Generator through 7W-8825 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 9Y-0157 Generator through 9Y-0389 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 9Y-0390 Generator through 9Y-0533 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 9Y-1408 Generator through 9Y-9422 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Terminology
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 144-0469 Generator through 144-0583 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 166-2651 Generator through 166-2689 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 166-2691 Generator through 166-7187 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 144-1811 Generator through 144-1951 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 147-9437 Generator through 147-9497 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 153-3081 Generator through 153-3098 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 167-1351 Generator through 167-1354 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 126-8022 Generator through 128-7424 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 136-6580 Generator through 136-6609 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 141-5534 Generator through 142-9900 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 144-1666 Generator through 144-1766 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 136-6610 Generator through 136-6641 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 144-1964 Generator through 144-2088 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 149-2447 Generator through 150-9152 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 158-6410 Generator through 163-8546 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 164-0975 Generator through 164-4946 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 173-7078 Generator through 194-6563 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 203-5749 Generator through 324-5120 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 6I-0053 Generator through 6I-4860 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Winding Data for 109-3776 Generator through 109-7874 Generator
SR4 and SR4B Electric Power Generation Rewind Data

Systems Operation

Generator Operation
SR4B Generators

General Information
SR4B Generators

Component Descriptions
SR4B Generators

Glossary
SR4B Generators

Main Revolving Field Connections (All Except SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options

Options (All Except SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options

Main Revolving Field Connections (SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options

Options (SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options

General Information (All Except SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options

General Information (SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options

Generator Wiring Diagrams (SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options

Main Stator and Voltage Sensing Lead Connections (All Except SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options

Main Stator and Voltage Sensing Lead Connections (SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options

Oil Field Generator Connections (SR4)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options

Testing and Adjusting

General Information
SR4B Generators

Troubleshooting
SR4B Generators

Generator Set - Test
SR4B Generators

Varistor - Test
SR4B Generators

Rotating Rectifier - Test
SR4B Generators

Winding - Test
SR4B Generators

Resistor - Test
SR4B Generators

Exciter Field - Flash
SR4B Generators

Generator - Dry
SR4B Generators

Insulation - Test
SR4B Generators

Disassembly and Assembly

Coupling - Install
SR4B Generators

Coupling - Remove
SR4B Generators

Bearing - Remove and Install
SR4B Generators

Rotor - Remove and Install
SR4B Generators

Generator - Align
SR4B Generators

Generator - Install
SR4B Generators

Generator - Remove
SR4B Generators

Exciter - Remove and Install
SR4B Generators

Service Magazine

Use 139-2788 Ferrule (AWG 24-12) And 139-2789 Ferrule (AWG 10-6) Crimp Tools For Repairing 3500 SR4B Generator Wiring Harness {1403}
1998/03/02

Use 142-5055 Insulation Tester Group To Measure And Check Insulation Resistance{4450,0785}
1998/03/23

Special Instruction, REHS0345, "Generator Service Literature Index" Is Available{4450}
1998/10/26

Special Instruction, REHS0345-01, "Generator Service Literature Index" Is Available {4450}
1999/04/12

New 155-5175 AC Current Probe For Generator Sets Now Available{1400,4450,0734,7002}
1999/05/24

A List Of Contacts For Caterpillar Product Support Is Available {1000, 4450, 7000}
2002/03/25

Caterpillar Parts SIS Catalog 3512B :

320-3715 GENERATOR GP

512-9639 GENERATOR GP

508-4049 GENERATOR GP

434-7057 GENERATOR GP

382-4979 GENERATOR GP

371-9666 GENERATOR GP

363-1217 GENERATOR GP

320-3715 GENERATOR GP

508-4049 GENERATOR GP

7C-9126 GENERATOR GP

125-2114 HEAT SINK AS

298-3648 HEAT SINK AS

253-3528 HEATER GP-SPACE

514-7316 HEATER GP-SPACE

Truck sale:

Caterpillar 3512B
- Stationary Generator Sets
MACALLISTER MACHINERY CO., INC

182,189

Caterpillar 3512B, mobile generator sets, Construction
- mobile generator sets
FINANZAUTO S.A.

Caterpillar 3512B, Marine Propulsion / Auxiliary Engines, Construction
- Marine Propulsion / Auxiliary Engines
ZEPPELIN POWER SYSTEMS GMBH

Caterpillar 3512B
- Industrial engines
FOLEY EQUIPMENT COMPANY

190,000

Caterpillar 3512B, Stationary Generator Sets, Construction