1205-040
UnclassifiedCooling
What This Code Means
Damper is hot; Damper temperature reaches 100°C (212 °F); Paint on damper is discolored from heat; Damper is dented; Damper is cracked; Silicone fluid leak from damper; Excessive torsional vibrations; Damage to crankshaft and other engine components; Engine failure due to a broken crankshaft; Excessive wear on crankshaft bearings; Large amount of gear train wear not caused by a lack of oil
Possible Causes
- •Excessive torsional vibration
- •Worn bearings
- •Damage to the damper
- •Damage to the crankshaft vibration damper
- •Failure of the damper
- •Deteriorating damper
Suggested Actions
- 1Monitor damper temperature during operation using an infrared thermometer
- 2Consult Caterpillar dealer if temperature reaches 100°C (212 °F)
- 3Repair or replace the damper
- 4Inspect damper for dents, cracks, and fluid leaks
- 5Determine the type of fluid (silicone is transparent, viscous, and smooth)
Related Caterpillar Inc. Fault Codes
ASK RUDY ABOUT THIS FAULT
Get a diagnosis walkthrough for 1205-040 on your specific Caterpillar Inc. unit — cited to the OEM manual, not a forum guess.
GET THE ANSWER
Free account required — we'll bring your question with you.