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BELT-SERPENTINE 2431276 - Caterpillar


2431276 BELT-SERPENTINE Caterpillar parts 365C, 365C L, 365C L MH, 374D L, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, C15, C18, CX35-P800
Rating:
69
Alternative (cross code) number:
CA2431276
243-1276
2431276
Caterpillar 2431276 BELT-SERPENTINE
Weight: 0.75 pounds 0 kg.

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Number on catalog scheme: 5
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Compatible equipment models: 2431276:

FRONT SHOVEL  385C  
INDUSTRIAL ENGINE  C18  
MOBILE HYD POWER UNIT  365C L   385C   385C L  
PETROLEUM ENGINE  C15   C18  
PETROLEUM PACKAGE  CX35-P800   Caterpillar

Information:

Introduction
This troubleshooting guide can be an aid for the service personnel to find the cause of existing problems. Several common problems are covered in the guide, but these problems are not arranged in any particular sequence.Identify your particular type of problem from the Troubleshooting Index, then go directly to that problem in the guide. However, when you begin the procedure for that problem, start at Step 1 and follow through the step by step procedure. The steps that follow in a particular problem provide a definite sequence to be followed for a logical, one by one elimination of many variables. These steps are arranged in order from the more probable/easiest to check, to the less probable/more complex to check.Whenever the cause of the problem is found and corrected, stop the test. Do not continue through the complete procedure just because it is there.Governor Only
Problem No. 1: Governor Does Not Open On Starting
Probable Cause:1. No signal from magnetic pickup. Verify with AC voltmeter or Oscilloscope.Excessive pickup clearance. Adjust clearance to 0.5 to 0.8 mm (.02 to .03 in) if necessary.Check resistance at cable socket of governor control unit A2/B2 (approx. 200 ohms). Replace cable or speed pickup if needed.Check starting speed voltage at cable socket of governor control unit A2/B2 (approx. 5V AC). Replace or clean speed pickup if needed. The governor must have its own speed pickup. It cannot share a pickup with another device.Wiring fault - magnetic pickup defective. Repair or replace as needed.Control lamp must be lit when power supply is on and must go out from starting frequency upwards. If the governor works with the governor test unit but not on the engine, the fault is in the speed pickup or speed pickup cable.2. Shutdown switch on.Disconnect shutdown at pins H3 & I3 for troubleshooting.3. Set point potentiometer connections wrong or incomplete.Disconnect 14 pin connector from governor control unit and use ohmmeter to verify the resistance at the cable socket of the wiring harness.Remote speed set point potentiometer at minimum speed: Remote speed set point potentiometer at maximum speed: 4. Set point potentiometer or maximum speed/low speed potentiometer settings too low.Verify speeds are correct with governor test unit.5. Wiring fault in cable harness.6. Supply voltage inadequate or polarity reversed.Verify with DC voltmeter.7. No DC voltage at governor control unit.Verify with DC voltmeter.8. Actuator impeded or linkage adjusted wrong.Manually move linkage to verify.9. Start fuel limit incorrectly adjusted (if used).Put start fuel limit switch in position 2 or 3. Try to start engine. If engine starts, shut down engine, put start fuel limit slide switch in position 4. Re-adjust start fuel limit according to "Start Fuel Limit Adjustment" procedure in the Initial Checks & Adjustments section.10. Open or shorted speed pickup cable or speed set point cable.Verify with ohmmeter.11. Actuator defective.Check resistance at terminals B-C on actuator (approx. 2 ohms).Replace actuator.12. Governor control unit defective.Replace governor control unit.Problem No. 2: Governor Moves To Maximum Fuel Injection When Power Supply Is On
Probable Cause:1. Wiring fault in harness.2.

Caterpillar parts catalog:

Caterpillar parts catalog
C18 Industrial Engine WJH00001-UP
C15 Petroleum Engine JDK00001-UP
C18 Petroleum Engine WJW00001-UP
CX35-P800-C18I Petroleum Power Train Package PCZ00001-UP
385C L Excavator JCM00001-UP (MACHINE) POWERED BY C-18 Engine
365C L Excavator ELC00001-UP (MACHINE) POWERED BY C-15 Engine
385C Excavator KBC00001-UP (MACHINE) POWERED BY C18 Engine
385C FS Excavator MMA00001-UP (MACHINE) POWERED BY C-18 Engine
365C L Excavator MEM00001-UP (MACHINE) POWERED BY C-15 Engine
365C L Excavator MCS00001-UP (MACHINE) POWERED BY C-15 Engine
365C L Excavator FEN00001-UP (MACHINE) POWERED BY C-15 Engine
385C L Excavator T2E00001-UP (MACHINE) POWERED BY C-18 Engine
385C L Excavator EDA00001-UP (MACHINE) POWERED BY C18 Engine
385C Excavator MNZ00001-UP (MACHINE) POWERED BY C-18 Engine
385C FS Excavator T2F00001-UP (MACHINE) POWERED BY C18 Engine
385C FS Excavator GLT00001-UP (MACHINE) POWERED BY C18 Engine
385C & 385C L Excavator KGB00001-UP (MACHINE) POWERED BY C18 Engine
385C FS Excavator EAM00001-UP (MACHINE) POWERED BY C-18 Engine
365C L Hydraulic Excavator PAR00001-UP (MACHINE) POWERED BY C-15 Engine
385C Material Handler WAW00001-UP (MACHINE) POWERED BY C-18 Engine
365C L Excavator MCY00001-UP (MACHINE) POWERED BY C-15 Engine
365C L Material Handler GWC00001-UP (MACHINE) POWERED BY C-15 Engine
365C L Mobile Hydraulic Power Unit GSZ00001-UP (MACHINE) POWERED BY C15 Engine
390D L Excavator WAG00001-UP (MACHINE) POWERED BY C18 Engine
390D L Excavator WBT00001-UP (MACHINE) POWERED BY C18 Engine
390D L Excavator WAP00001-UP (MACHINE) POWERED BY C18 Engine
374D L Excavator PJA00001-UP (MACHINE) POWERED BY C15 Engine
374D L Excavator PAX00001-UP (MACHINE) POWERED BY C15 Engine
374D L Excavator PAP00001-UP (MACHINE) POWERED BY C-15 Engine
374D L Excavator PAS00001-UP (MACHINE) POWERED BY C15 Engine
385C Mobile Hydraulic Power Unit MSF00001-UP (MACHINE) POWERED BY C18 Engine
390D Excavator BYP00001-UP (MACHINE) POWERED BY C18 Engine
390D Excavator KCZ00001-UP (MACHINE) POWERED BY C18 Engine
385C L Mobile Hydraulic Power Unit M3W00001-UP (MACHINE) POWERED BY C18 Engine


Parts belt Caterpillar catalog:

1184914 BELT TIGHTENER GP
3406E, 3456, C-15, C-16, C15, C18, CX31-C15I, CX35-P800, TH35-C15I
1900642 BELT TENSIONER
3126, 3126B, 3406E, 345B II, 621B, 621G, 623G, 627F, 627G, 631D, 631E, 631G, 637D, 637E, 637G, 657E, 657G, 773F, 775F, 777C, 777D, 793F, 793F-XQ, 795F AC, 797, 797B, 797F, 854K, 924H, 924HZ, 928HZ, 99...
2178938 BELT TENSIONER
24M, 3126B, 3406E, 735, 740, 770, 772, 793F, 824C, 824G II, 824H, 825G II, 825H, 826G II, 826H, 834G, 834H, 836G, 836H, 844H, 980G, 980G II, 980H, 986H, 988G, 988H, 990H, AD55B, AD60, C-15, C-16, C15,...
3298797 BELT TENSIONER
24M, 621B, 621G, 623G, 627F, 627G, 631D, 631E, 631G, 633E II, 637D, 637E, 637G, 657E, 657G, 735B, 740B, 770G, 770G OEM, 772G, 772G OEM, 777C, 777D, 777F, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 79...
1900649 BELT TENSIONER
12M, 140G, 140H, 140M, 143H, 14H, 160H, 163H, 16H, 3126B, 3126E, 3176C, 3196, 3406E, 385B, 5090B, 725, 730, AD30, BG-2455D, C-10, C-12, C-15, C-16, C-18, C15, C18, C7, C9, CX31-C9I, CX35-P800, TH31-E6...
3368955 BELT TENSIONER
AD45B, AD55, C-15, C-16, C15, TH35-C15T
1974567 BELT-SERPENTINE
120H, 135H, 3126B, C15, C9, CX31-C15I, TH35-C15I
3414938 BELT-SERPENTINE
621B, 621G, 623G, 627F, 627G, 631D, 631E, 631G, 633E II, 637D, 637E, 637G, 657E, 657G, C18, CX35-P800
3414938 BELT-SERPENTINE
621B, 621G, 623G, 627F, 627G, 631D, 631E, 631G, 633E II, 637D, 637E, 637G, 657E, 657G, C18, CX35-P800
1974567 BELT-SERPENTINE
120H, 135H, 3126B, C15, C9, CX31-C15I, TH35-C15I
2193303 BELT-SERPENTINE
938G II, 950G II, 962G II, C7, CP-56, CP-64, CP-76, CS-56, CS-64, CS-74, D5K2 XL, IT38G II, IT62G II
2115022 BELT-SERPENTINE
330C, 330C L, 330C MH, 584, C13, C7, C9, CX31-C9I, TH31-E61
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