Home › CDL Practice Tests › Air Brakes Questions › Question 223
Finding a large amount of oil being discharged from the tanks or dryer is a sign of what?
- A.Perfectly healthy operation after any trip
- B.Brake linings that are too dry
- C.A governor set slightly too high
- D.The compressor may be worn or passing excessive oil into the air system and should be checked
Correct answer
D. The compressor may be worn or passing excessive oil into the air system and should be checked
Why
Small traces of oil can appear, but heavy oil carry-over means compressor rings or seals are letting lubricant into the discharge air. That oil fouls dryer cartridges, valves, and seals throughout the system.
Manual topic: Air Brakes - Air Tanks and Draining · From the Air Brakes practice bank (AB-223).