Chapter 5 Compressor Lubrication & Maintenance
51
PROBLEM
CAUSE
RESOLUTION
Coalescer Element Plugging
Oil breakdown.
Extreme operating temperature -
reduce temperature.
Water in oil. Drain condensate
from oil sump.
Wrong oil. Use only IMT-approved
compressor oil.
Dirty oil - change oil.
Oil return line plugged. Clean oil
return line.
Change oil and oil filter per
maintenance schedule.
Compressor air inlet.
Check system for leaks.
High Compressor Discharge
Temperature
Low oil level.
Add oil if required
Thermal valve
Check thermal valve operation
Reduced flow through cooler.
Clean outside of oil cooler
Clean oil system (cooler) internally.
Check fan relay harness.