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WIRING DIAGRAM--24 Volt System 225 EXCAVATOR


ELECTRICAL AND STARTING SYSTEM
WIRING GP
HARNESS GP
WIRING GP
LIGHTING GP
STARTING AR
BATTERY GP
STARTING MOTOR GP

EXCAVATOR 225 EXCAVATOR 51U
 225 EXCAVATOR 51U00590-02033 (MACHINE) UEG0852S 225 51U   (1972)

ELECTRICAL AND STARTING SYSTEM

WIRING GP
BATTERY AND WIRING GROUP
8K-0152 BATTERY AND WIRING GROUP
BATTERY AND WIRING GROUP
8K-0152 BATTERY AND WIRING GROUP
WIRING DIAGRAM
WIRING DIAGRAM
HARNESS ASSEMBLY
3V-5136 HARNESS ASSEMBLY
HARNESS ASSEMBLY
3V-2663 HARNESS ASSEMBLY
HARNESS ASSEMBLY
3V-2767 HARNESS ASSEMBLY
 

#UEG0852S0030
 

WIRING DIAGRAM

WIRING DIAGRAM--24 Volt System
UEG0852S0030 UEG0852S
None WIRING DIAGRAM Parts scheme
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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
 

#UEG0852S0031
 

8K-1407: WIRING HARNESS ASSEMBLY

8K1407 WIRING HARNESS ASSEMBLY
Serial No. 51U590 to 51U1541 inclusive
Part of 8K152 Battery & Wiring Group shown on Pages 22, 22A & 22B
c116791 UEG0852S
8K1407 WIRING HARNESS ASSEMBLY Parts scheme
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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. [4] TERMINAL  
2. [2] TERMINAL  
3. [2] INSULATOR  
4. [2] TERMINAL  
5. [2] INSULATOR  
6. [6] TERMINAL  
7. [2] TERMINAL  
  [2] INSULATOR  
8. [5] TERMINAL  
9. [4] TERMINAL  
10. [1] TERMINAL  
11. [3] TERMINAL  
12. [1] TERMINAL  
 

#UEG0852S0032
 

3V-2477: WIRING HARNESS ASSEMBLY

3V2477 WIRING HARNESS ASSEMBLY
Serial No. 51U1542 to 51U1720 inclusive
Part of 8K152 Battery and Wiring Group shown on Page 22C
c159755 UEG0852S
3V2477 WIRING HARNESS ASSEMBLY Parts scheme
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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7K-4475 [4] TERMINAL  
2. 2L-8049 [6] TERMINAL  
3. 4L-3916 [4] TERMINAL  
4. 2L-8079 [1] TERMINAL  
5. 5P-1477 [1] TERMINAL  
6. 5P-1475 [4] TERMINAL  
7. 5P-3176 [1] CONNECTOR ASSEM.  
    (Includes)
  5P-6642 H WIRE 1.2 m(472.44 in.)  
8. 6K-9704 [1] TERMINAL  
9. 5P-1476 [2] TERMINAL  
10. 2L-8057 [2] TERMINAL  
    THE FOLLOWING WIRES ARE AVAILABLE:
  5P-5623 H WIRE (16 gauge)  
  5P-5624 H WIRE (14 gauge)  
  5P-5622 H WIRE (10 gauge)  
  5P-5621 H WIRE (8 gauge)  
  H   ORDER BY THE METRE-USE AS REQU
 

#UEG0852S0033
 

3V-5136: HARNESS ASSEMBLY

3V5136 HARNESS ASSEMBLY
Serial No. 51U1721-Up
Part of 8K152 Battery and Wiring Group shown on Pages 22D & 22E
c163925 UEG0852S
3V5136 HARNESS ASSEMBLY Parts scheme
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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7K-4475 [4] TERMINAL  
2. 2L-8049 [6] TERMINAL  
3. 4L-3916 [4] TERMINAL  
4. 2L-8079 [1] TERMINAL  
5. 5P-1477 [1] TERMINAL  
6. 5P-1475 [2] TERMINAL  
7. 5P-3176 [1] CONNECTOR ASSEM.  
    (Includes)
  5P-6642 H WIRE 1.2 m(472.44 in.)  
8. 6K-9704 [1] TERMINAL  
9. 5P-1476 [2] TERMINAL  
10. 2L-8057 [2] TERMINAL  
11. 5P-5694 [1] CONNECTOR  
12. 5P-4571 [1] TERMINAL  
    THE FOLLOWING WIRES ARE AVAILABLE:
  5P-5623 H WIRE (16 gauge)  
  5P-5624 H WIRE (14 gauge)  
  5P-5622 H WIRE (10 gauge)  
  5P-5621 H WIRE (8 gauge)  
  H   ORDER BY THE METRE-USE AS REQU
 

#UEG0852S0034
 

3V-2663: HARNESS ASSEMBLY

3V2663 HARNESS ASSEMBLY
Serial No. 51U1542-Up
Part of 8K152 Battery and Wiring Group shown on Pages 22C, 22D & 22E
c160772 UEG0852S
3V2663 HARNESS ASSEMBLY Parts scheme
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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7K-4475 [1] TERMINAL  
2. 2L-8075 [3] TERMINAL  
3. 2L-8076 [2] TERMINAL  
4. 2L-8054 [2] TERMINAL  
5. 2L-8081 [1] TERMINAL  
6. 5P-3176 [1] CONNECTOR ASSEM.  
    THE FOLLOWING WIRES ARE AVAILABLE:
  5P-5623 WIRE (16 gauge)  
  5P-5624 H WIRE (14 gauge)  
  5P-5622 WIRE (10 gauge)  
  H   ORDER BY THE METRE
 

#UEG0852S0035
 

3V-2767: HARNESS ASSEMBLY

3V2767 HARNESS ASSEMBLY
Serial No. 51U1542-Up
Part of 8K152 Battery and Wiring Group shown on Pages 22C, 22D and 22E
c161418 UEG0852S
3V2767 HARNESS ASSEMBLY Parts scheme
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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5P-3175 [2] CONNECTOR ASSEM.  
2. 5P-1475 [1] TERMINAL  
    THE FOLLOWING WIRES ARE AVAILABLE:
  5P-5623 H WIRE (16 gauge)  
  5P-5624 H WIRE (14 gauge)  
  5P-5622 H WIRE (10 gauge)  
  H   ORDER BY THE METRE
 

#UEG0852S0036
 

1M-3385: DASH LAMP ASSEMBLY

1M3385 DASH LAMP ASSEMBLY--24 Volt
Part of 8K152 Battery and Wiring Group shown on Pages 22, 22A, 22B,
22C, 22D and 22E
c114977 UEG0852S
1M3385 DASH LAMP ASSEMBLY Parts scheme
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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2M-1446 [1] NUT  
2. 7M-4870 [1] COVER  
3. 3H-2691 [1] BULB  
4. 2M-1449 [1] LENS  
 

#UEG0852S0037
 

4N-3354: STARTING AR-ELECTRIC

4N3354 DIRECT ELECTRIC STARTING ARRANGEMENT--24 Volt
FOR USE IN TEMPERATURES OF 0 DEGREES FAHRENHEIT OR BELOW
AN ATTACHMENT
UEG0852S0037 UEG0852S
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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  8K-2506 Y [1] BATTERY GROUP  
  7S-3622 Y [1] STARTING MOTOR GROUP  
  Y   SEPARATE ILLUSTRATION
 

#UEG0852S0038
 

8K-2506: BATTERY GP

8K2506 BATTERY GROUP--24 Volt--Heavy Duty
Part of 4N3354 Direct Electric Starting Arrangement
c114971 UEG0852S
8K2506 BATTERY GP Parts scheme
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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4K-8473 [1] FRAME ASSEM.  
2. 4S-9261 [2] BATTERY  
3. 5S-8405 [6] PLUG  
4. 5K-8074 [1] CABLE ASSEM.  
5. 3D-2098 [2] TERMINAL ASSEM.  
6. 2D-8788 [1] BOLT  
  2D-8787 [1] NUT  
 

#UEG0852S0039
 

7S-4090: STARTING MOTOR GP-ELECTRIC

ELECTRIC STARTING MOTOR (7S4090 N/S)--24 Volt
2P2502 and 3P6 Starting Motor parts are shown on Pages 28 through 31
c205711 UEG0852S
7S4090 STARTING MOTOR GP-ELECTRIC Parts scheme
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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2P-2502 CY [1] MOTOR GROUP  
    -OR-
  3P-0006 CY [1] MOTOR GROUP  
    (Separate Illustration)
2. 7J-8902 C [3] BOLT  
  8D-5054 [3] WASHER  
3. 4H-7869 [1] GASKET  
4. 9F-4337 [1] WIRE ASSEM.  
5. 9F-3068 [1] TERMINAL  
6. 7F-8032 [1] TERMINAL (Ground)  
7. 9F-5509 [1] INSULATOR  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

Information:

Engine News
Correction to The Pocket Guide, SEBD0402 Is Available as a Reference for Routing and Installing Wire Harness Assemblies {1408}
2000/07/01
270-5051 Repair Kit (Electrical Connectors) Available for Repairs to Wiring Harnesses with Ampseal 16 and A4E 2 Connectors {0709, 1408}
2006/03/20
Bulk Wiring Harnesses Are Available for Use with Caterpillar Products {1408}
2010/05/13
Special Instruction
Use of the 4C6534 Speed Switch Calibration Harness{0781, 0785}
Use of the 4C6534 Speed Switch Calibration Harness{0781, 0785}
Retrofit Installation of Coolant Loss Sensor{1353, 1395, 7422, 7470}
Retrofit Installation of Coolant Loss Sensor{1353, 1395, 7422, 7470}
Installation Of 9P3498 Thermostat Switch Assembly{7320}
Installation Of 9P3498 Thermostat Switch Assembly{7320}
Battery Ratings And Cross Reference Chart{1401}
Battery Ratings And Cross Reference Chart{1401}
Cross-Reference for Electrical Connectors {7553}
Cross-Reference for Electrical Connectors {7553}
Circuit Breaker Harness Assembly {1420}
Circuit Breaker Harness Assembly {1420}
Service Replacement Relays Available{4493}
Service Replacement Relays Available{4493}
Ampseal 16 Connector Peripheral Seal Servicing{7553}
Ampseal 16 Connector Peripheral Seal Servicing{7553}
Service Of Machined Terminals And Service of Stamped and Formed Terminals{7553}
Service Of Machined Terminals And Service of Stamped and Formed Terminals{7553}
Installation and Operation of the Exhaust Monitor Used in All Diesel Particulate Filter (DPF) Retrofit Emissions Applications{1091, 1408, 7490, 7498}
Installation and Operation of the Exhaust Monitor Used in All Diesel Particulate Filter (DPF) Retrofit Emissions Applications{1091, 1408, 7490, 7498}
Guidelines for Routing and Installing Wire Harness Assemblies {1408, 7553}
Guidelines for Routing and Installing Wire Harness Assemblies {1408, 7553}
Repair Procedure for Damaged Harness Wiring {1408}
Repair Procedure for Damaged Harness Wiring {1408}
Installation Procedure for Product Link PL421 Retrofit{7606}
Installation Procedure for Product Link PL421 Retrofit{7606}
Installation of Seat Belt Reminder Systems {1408, 1901, 1902, 7327, 7602, 7606, 7610, 7620}
Installation of Seat Belt Reminder Systems {1408, 1901, 1902, 7327, 7602, 7606, 7610, 7620}
DRCP Connector Repair Service Instruction {1408, 7553}
DRCP Connector Repair Service Instruction {1408, 7553}
Tool Operating Manual
Using the 362-3555 Connector Repair Kit to Service Harnesses with Ampseal 16 Connectors{0685, 1408}
Using the 362-3555 Connector Repair Kit to Service Harnesses with Ampseal 16 Connectors{0685, 1408}
Using the U5MK1110 Ampseal Connector Kit for Wiring Harness Repairs on Perkins Engines{7553}
Using the U5MK1110 Ampseal Connector Kit for Wiring Harness Repairs on Perkins Engines{7553}
Using the U5MK1110 Ampseal Connector Kit for Wiring Harness Repairs on Perkins Engines{0374, 0599, 0701, 0709}
Using the U5MK1110 Ampseal Connector Kit for Wiring Harness Repairs on Perkins Engines{0374, 0599, 0701, 0709}
Using the 453-3204 Pressure and Temperature Test Group{0374, 0599, 0706, 0708, 0709, 0731, 0732, 0738, 1408, 1439}
Using the 453-3204 Pressure and Temperature Test Group{0374, 0599, 0706, 0708, 0709, 0731, 0732, 0738, 1408, 1439}
Reuse And Salvage Guidelines
Guideline for Visual Inspection and Repair of Foam Wiring Harness {0649, 1408, 1408, 1408, 1408}
Guideline for Visual Inspection and Repair of Foam Wiring Harness {0649, 1408, 1408, 1408, 1408}
Testing and Adjusting
Electrical Connector - Inspect
Product Link - PL522/523
Wiring Harness (Open Circuit) - Test
Product Link - PL522/523
Wiring Harness (Short Circuit) - Test
Product Link - PL522/523
Electrical Connector - Inspect
Product Link 121S/300
Wiring Harness (Open Circuit) - Test
Product Link 121S/300
Wiring Harness (Short Circuit) - Test
Product Link 121S/300
Troubleshooting
MID 122 - CID 0269 - FMI 03
Product Link 121S/300
MID 122 - CID 0269 - FMI 04
Product Link 121S/300
Disassembly and Assembly
Disconnect Switch
225-235-245 EXCAVATORS OPERATOR'S STATION
Service Magazine
Use FT1711 Light Table For Cylinder Liner Inspection {0652,1216}
1982/11/29
Maintenance Free Batteries{1401}
1986/03/10
New Oil Pressure Switch Used With EMS Systems{7485}
1986/03/10
Requirements For Shipping Wet Batteries In The U.S.{1401,7500}
1986/04/07
Determining The Cause Of Glow Plug Tip Failures{1053,1105,1412}
1986/06/02
Heavy-Duty Line Of Batteries Available To U.S. Dealers{1400,1401}
1986/09/01
Safety Vent Caps For Caterpillar Batteries{1401}
1977/07/11
5P957 And 5P3514 Coolant And Battery Tester{0786,1395,1401}
1987/03/23
Alternator "R" 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
Testing The Starter On The Engine{1401,1450}
1987/05/04
Be Sure Battery Cable-To-Starter Connection Has Correct Torque{1453}
1988/03/14
Maintenance-Free Batteries Require Different Troubleshooting Procedures{1401}
1988/06/20
Revised Instructions For Installation of New Maintenance Free Batteries{1401,1400}
1988/12/12
Fuse And Wire Assembly Is Available For Protection Of Earlier 6N5906 Service Meters{7480}
1979/01/29
Voltage Regulator Can Cause Variable Ammeter Indications{1410,1401,1405,1406,7467}
1979/10/22
Two Plug Assemblies (Booster Cables) Are Available To Start Machines{1401,1453}
1979/11/05
Batteries Can Be Damaged If Too Much Vacuum Is Used During Electrolyte Fill{1401}
1979/11/26
Better Inlay Is Used On Switch Panel{7451}
1979/12/10
High Performance Maintenance Free Battery Available{1401}
1989/01/16
Limitations On Engine Cranking Time{1453,1401}
1989/03/27
How To Troubleshoot A Short-To-Ground In Power Wiring{1400}
1989/03/27
Preventive Maintenance For Batteries{1401}
1989/03/27
Causes And Effects Of Low Battery Voltage On Electric Starters{1401,1453,1467}
1989/04/24
Procedure For Replacing Batteries Or Battery Cables {1401,1402,1411}
1989/05/01
Procedure For Replacing Batteries, Battery Cables Or Disconnect Switches {1401,1402,1411}
1989/05/01
Procedure For Replacing Batteries, Battery Cables Or Disconnect Switches {1401,1402,1411}
1989/05/01
Special Instruction, "Battery Charging Rate And Time Tables," Available On Oil Resistant Paper{0374,1401}
1989/06/19
Radio Interference With Electronic Control Systems{7338}
1989/09/18
Improved Sealing For Neutral-Start Switch{1424,7415}
1990/07/23
Radio Interference With Electronic Control Systems{7338}
1990/12/10
Adapter Harness Required When Replacing 3T0188 Wiper Motor{7305,1408}
1991/08/12
Compression Ratio Increased On Remanufactured OR1094 & OR1095 Engines To Reduce Amount Of White Smoke On Cold Weather Start-Ups{1000,1254,1290}
1991/09/30
Wiring Harness Conduit Component Sizes {1408}
1995/02/13
Parts Manuals May List Air Conditioning Compressors Incorrectly {1802,1809,7320}
1996/10/07
Special Instruction, REHS0440 is Available for an Index of Electrical System Schematics {7566}
2000/04/10
Correction to The Pocket Guide, SEBD0402, Is Available as a Reference for Routing and Installing Wire Harness Assemblies {1408}
2000/06/26
Dielectric Grease Should Not Be Used in Electrical Connectors {1408, 7553}
2012/05/04
The Main Power Relay Has Improved Sealing {1423}
2009/05/18
New Temperature Indicators May Require an Adapter {0758}
2003/07/14
Service of the Machined Terminals and the Stamped and Formed Terminals {7553}
2006/11/13
Updated Instruction For The Bypass Harness {0785, 1408}
2008/03/17
Bulk Wiring Harnesses Are Available for Use with Caterpillar Products {1408}
2012/03/05
Striped Wire Is Replaced With Improved Ink Jet Identification for Legacy (Parts Service) Wire harnesses {1408}
2012/06/08
Use Conductive Fasteners for Electrical Grounding on All Cat Products {7553, 7556}
2012/05/08
Information On Battery Cables and Wire Assemblies for Assembling at Dealer Site {4459}
2012/09/21
Parts are Now Available to Make Jump Start Receptacle on Cat<SUP>&reg;</SUP> Product {1463}
2014/03/04
Comprehensive List of Electrical Repair and Troubleshooting Information Is Now Available for All CAT Machines {0374, 0709, 1400, 1408, 7490, 7553, 7610}
Comprehensive List of Electrical Repair and Troubleshooting Information Is Now Available for All CAT Machines {0374, 0709, 1400, 1408, 7490, 7553, 7610}

Caterpillar Parts SIS Catalog 225 :

BATTERY AND WIRING GROUP
8K-0152 BATTERY AND WIRING GROUP
BATTERY AND WIRING GROUP
8K-0152 BATTERY AND WIRING GROUP
BATTERY AND WIRING GROUP
8K-0152 BATTERY AND WIRING GROUP
BATTERY AND WIRING GROUP
8K-0152 BATTERY AND WIRING GROUP
BATTERY AND WIRING GROUP
8K-0152 BATTERY AND WIRING GROUP
BATTERY AND WIRING GROUP
8K-0152 BATTERY AND WIRING GROUP
SWITCH AS-DISCONNECT
7H-7290 SWITCH AS-DISCONNECT
SWITCH AS-LIGHT
3K-1650 SWITCH AS-LIGHT
WIRING HARNESS ASSEMBLY
8K-1407 WIRING HARNESS ASSEMBLY
WIRING HARNESS ASSEMBLY
3V-2477 WIRING HARNESS ASSEMBLY
HARNESS ASSEMBLY
3V-5136 HARNESS ASSEMBLY
HARNESS ASSEMBLY
3V-2663 HARNESS ASSEMBLY
HARNESS ASSEMBLY
3V-2767 HARNESS ASSEMBLY
DASH LAMP ASSEMBLY
1M-3385 DASH LAMP ASSEMBLY
4N-3354 STARTING AR-ELECTRIC
BATTERY GP
8K-2506 BATTERY GP

Truck sale:

CATERPILLAR 225 1985
 
CATERPILLAR 225 1985
- TRACK EXCAVATORS
ZEPPELIN BAUMASCHINEN
Gebrauchtmaschinen Pool Karl-Bröger-Strasse 8 - Alsfeld
 
 
CATERPILLAR 225 1979
- TRACK EXCAVATORS
PETERSON TRACTOR CO
CATERPILLAR 225 1984
 
CATERPILLAR 225 1984
- TRACK EXCAVATORS
MILTON CAT
100 Quarry Drive - MILFORD - Massachus
1986 CAT 225
Call 
1986 CAT 225

Sound Heavy Machinery
North Carolina
1977 CAT 225
USD $26,900 
1977 CAT 225

Construction Station
Wayne, Michigan
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The names Cat, Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Doosan, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
AVSpare.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only. Cat® and Caterpillar® are registered trademarks of Caterpillar, Inc.