2500798 FASTENER GP-LIFTING Caterpillar parts
C-12, C12
Rating:
Alternative (cross code) number:
CA2500798
250-0798
2500798
CA2500798
250-0798
2500798
MARINE ENGINE,
Number on catalog scheme:
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Information:
Probable Causes
Engine shutdown switches
Circuit breakers
Machine security system
Battery cables and/or battery
Starting motor solenoid or starting circuit
Starting motor and/or flywheel ring gear
Electrical power supply
Internal engine problemRecommended Repairs
Engine Shutdown Switches (If Equipped)
Verify that there are no active shutdown switches.Circuit Breakers
Check the state of each of the circuit breakers. Reset the circuit breakers if the circuit breakers are tripped. Prior to returning the engine to service, determine the condition that caused the circuit breaker to trip. Make any necessary repairs.Machine Security System
Verify that the correct keyswitch is being used. Turn the keyswitch to the ON position.
Use the electronic service tool in order to check if diagnostic code 1639-09 is active. Verify that the lamp for the machine security system is on.
If diagnostic code 1639-09 is active, the machine security system is armed. Deactivate the machine security system and try to start the engine.
If the engine will not start, use the electronic service tool to check for logged diagnostic codes.
Make repairs for all diagnostic codes. Ensure that the repair has eliminated the fault.
If there are no active diagnostic codes, refer to the Troubleshooting Manual for your machine application. Battery Cables and/or Battery
Inspect the main power switch, battery posts, and battery cables for loose connections and corrosion. If the battery cables are corroded, remove the battery cables and clean the battery cables. Clean the battery posts. Replace the cables. Tighten any loose connections.
Inspect the battery.
Charge the battery.
Load test the battery. Refer to Systems Operation, Testing and Adjusting, "Battery - Test". Starting Motor Solenoid or Starting Circuit
Test the operation of the starting motor solenoid. Refer to Systems Operation, Testing and Adjusting, "Electric Starting System - Test".
Check the wiring to the starting motor solenoid. Starting Motor and/or Flywheel Ring Gear
Test the operation of the starting motor. Check the wiring for the starting motor. Refer to Systems Operation, Testing and Adjusting, "Electric Starting System - Test".
Inspect the pinion on the starting motor and the flywheel ring gear for damage. Electrical Power Supply
If there is no electrical power supply, investigate the cause and rectify any defects. Refer to Systems Operation, Testing and Adjusting, "Charging System - Test".Internal Engine Problem
Remove the glow plugs. Refer to Disassembly and Assembly, "Glow Plugs - Remove and Install".
Attempt to rotate the crankshaft through 360 degrees in both direction. If the crankshaft rotates correctly but fluid is expelled from the hole for the glow plug, investigate the cause of the fluid in the cylinder.
If the crankshaft rotates correctly and no fluid is expelled, install the glow plugs. Refer to Disassembly and Assembly, "Glow Plugs - Remove and Install".
If the engine does not rotate in Step 2, disassemble the engine. Refer to Disassembly and Assembly.
Inspect the internal components for the following conditions:
Seizure
Broken components
Bent components
Engine shutdown switches
Circuit breakers
Machine security system
Battery cables and/or battery
Starting motor solenoid or starting circuit
Starting motor and/or flywheel ring gear
Electrical power supply
Internal engine problemRecommended Repairs
Engine Shutdown Switches (If Equipped)
Verify that there are no active shutdown switches.Circuit Breakers
Check the state of each of the circuit breakers. Reset the circuit breakers if the circuit breakers are tripped. Prior to returning the engine to service, determine the condition that caused the circuit breaker to trip. Make any necessary repairs.Machine Security System
Verify that the correct keyswitch is being used. Turn the keyswitch to the ON position.
Use the electronic service tool in order to check if diagnostic code 1639-09 is active. Verify that the lamp for the machine security system is on.
If diagnostic code 1639-09 is active, the machine security system is armed. Deactivate the machine security system and try to start the engine.
If the engine will not start, use the electronic service tool to check for logged diagnostic codes.
Make repairs for all diagnostic codes. Ensure that the repair has eliminated the fault.
If there are no active diagnostic codes, refer to the Troubleshooting Manual for your machine application. Battery Cables and/or Battery
Inspect the main power switch, battery posts, and battery cables for loose connections and corrosion. If the battery cables are corroded, remove the battery cables and clean the battery cables. Clean the battery posts. Replace the cables. Tighten any loose connections.
Inspect the battery.
Charge the battery.
Load test the battery. Refer to Systems Operation, Testing and Adjusting, "Battery - Test". Starting Motor Solenoid or Starting Circuit
Test the operation of the starting motor solenoid. Refer to Systems Operation, Testing and Adjusting, "Electric Starting System - Test".
Check the wiring to the starting motor solenoid. Starting Motor and/or Flywheel Ring Gear
Test the operation of the starting motor. Check the wiring for the starting motor. Refer to Systems Operation, Testing and Adjusting, "Electric Starting System - Test".
Inspect the pinion on the starting motor and the flywheel ring gear for damage. Electrical Power Supply
If there is no electrical power supply, investigate the cause and rectify any defects. Refer to Systems Operation, Testing and Adjusting, "Charging System - Test".Internal Engine Problem
Remove the glow plugs. Refer to Disassembly and Assembly, "Glow Plugs - Remove and Install".
Attempt to rotate the crankshaft through 360 degrees in both direction. If the crankshaft rotates correctly but fluid is expelled from the hole for the glow plug, investigate the cause of the fluid in the cylinder.
If the crankshaft rotates correctly and no fluid is expelled, install the glow plugs. Refer to Disassembly and Assembly, "Glow Plugs - Remove and Install".
If the engine does not rotate in Step 2, disassemble the engine. Refer to Disassembly and Assembly.
Inspect the internal components for the following conditions:
Seizure
Broken components
Bent components
Caterpillar SIS machinery equipment:
Parts fastener Caterpillar catalog:
3127842
FASTENER GP-FRONT COVER
C-12, C12
C-12, C12
1805168
FASTENER GP-DAMPER & PULLEY
3176C, 3196, 65E, 75E, 85E, 95E, C-10, C-12, C11, C12, C13, CX31-C13I, R1600, R1600G, R1700G, SBF214, SUF557, TH35-C11I, TH35-C13I, TH35-C13T
3176C, 3196, 65E, 75E, 85E, 95E, C-10, C-12, C11, C12, C13, CX31-C13I, R1600, R1600G, R1700G, SBF214, SUF557, TH35-C11I, TH35-C13I, TH35-C13T
1773616
FASTENER GP-REGULATOR HOUSING
3196, C-12, C12
3196, C-12, C12
1773601
FASTENER GP-REGULATOR HOUSING
3196, C-12, C12
3196, C-12, C12
1230479
FASTENER GP-WIRING HARNESS
3176C, 3196, C-12, C12
3176C, 3196, C-12, C12
2147872
FASTENER GP-WIRING HARNESS
C-12, C12
C-12, C12
1230480
FASTENER GP-OIL COOLER
3176C, 3196, C-12, C12
3176C, 3196, C-12, C12
1420392
FASTENER GP-ENGINE
3176C, 3196, C-12, C12
3176C, 3196, C-12, C12
3195343
FASTENER GP-FLYWHEEL
C-12, C12
C-12, C12
2470873
FASTENER GP-FUEL LINES
C-12, C12
C-12, C12
140H, 143H, 14H, 14M, 160H, 163H, 16H, 16M, 3196, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L, 349E L HVG, 349E L VG, 349F L, 621H, 621K, 623H, 623K, 623K LRC, 627H, 627...
1321980
FASTENER GP-DAMPER
3126, 3126B
3126, 3126B
5N8941
FASTENER GP-ENGINE WIRING
3512, 3512B, G3512
3512, 3512B, G3512
1736551
FASTENER GP-ENGINE
3116, 3126
3116, 3126
2045024
FASTENER GP-FRONT HOUSING
C15, C18, MTC835
C15, C18, MTC835
1108228
FASTENER GP-TMSN ADAPTER
3406B, 3406C, 3406E, C-15, C-16, C-18, C15
3406B, 3406C, 3406E, C-15, C-16, C-18, C15
4414267
FASTENER GP-FUEL FILTER
3512B, 3512C
3512B, 3512C
1418953
FASTENER GP-FUEL LINES
3406E, 3456, C-15, C-16, C15, C18, CX31-C15I, CX35-P800, TH35-C15I
3406E, 3456, C-15, C-16, C15, C18, CX31-C15I, CX35-P800, TH35-C15I
7N8341
FASTENER GP-GOVERNOR
G3304, G3306
G3304, G3306
2498533
FASTENER GP-MANIFOLD SHIELD
D10N, D10R, D10T, D11R, D11T
D10N, D10R, D10T, D11R, D11T