3-25. HYDRAULIC SYSTEM TROUBLESHOOTING (CONT)
TEST OR INSPECTION
10. HYDRAULIC SYSTEM OIL TOO HOT (Cont).
S t e p 1 . ( C o n t ).
a. If operator is not moving control levers completely into power
position, instruct him to do so.
b. If operator is moving control levers completely into power posi-
tion, go to step 2 below.
Step 2. Check hydraulic oil for contamination.
Take a sample of hydraulic oil and check if it is dark and thick,
has an odor of burned oil, particles of metal or dirt in oil, or
a p p e a r s t h a t w a t e r i s i n o i l .
If any of the above is seen, oil is contaminated.
a. If oil is contaminated, drain hydraulic system and clean
strainer (page 11-79), and replace oil filters (pages 8-40 and
b. If oil is not contaminated, notify next higher maintenance level
(additional checks must be performed).