Applicable Systems
EMCP 4.2
Symptoms
Rear axle oil temperature above safe limit; possible axle overload or low oil level; axle damage risk.
Possible Causes
- Axle oil level low
- Axle overload (excessive payload)
- Axle bearing failure generating heat
Troubleshooting Steps
- Step 1: Check rear axle oil level
Oil at correct level - Step 2: Verify payload within rated capacity for 950M
Payload within spec - Step 3: Check for metal particles in axle oil
Oil clean, no metal - Step 4: Inspect axle breather for blockage
Breather clear - Step 5: Top up oil, clear code and monitor temp
Temp within normal range
How to Reset
Clear via Cat ET after axle service.
Common Replacement Parts
- Axle Oil (SAE 85W-140)
Frequently Asked Questions
- Q: What is normal axle oil temperature?
Typically 70-90C operating. Above 110C triggers warning. Above 120C may indicate overload or bearing failure.
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Source: caterpillarfaultcodes.com CID list
Category: Heavy Equipment
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