90-13645--2 495 6B-7POWER TRIM
TO PURGE:
IMPORTANT: Fill plug and O-ring must be tight-
ened securely before purging system.
IMPORTANT: Run Trim System in short “jogs” un-
til pump is primed and trim system moves. If trim
motor is run without priming pump, driveshaft
failure could result.
Cycle outboard through entire trim/tilt range 4 times.
Check fluid level after purging system.
Push down on outboard when trim rams are slightly
extended. If rams retract more than 1/8 in. (3.2 mm),
air is present in system. Cycle system again and
check fluid level.
TO CHECK:
Tilt outboard to full “Up” position and engage tilt
lock lever before checking fluid level. System is
pressurized. Extend trim and tilt rams fully to
depressurize system.
CAUTION
51368
a
a - Tilt Lock Lever (engage to support engine in “Up” position)
Remove fill plug and O-ring. System is full when oil
level is present at filler hole. Tighten fill plug securely.
Hydraulic System
Troubleshooting
IMPORTANT: Operate Power Trim System after
each check to see if problem is corrected. If prob-
lem has not been corrected, proceed to next
check.
1. Check that Manual Release Valve knob is tight-
ened to full right (clockwise) position.
2. Check trim pump fluid level and fill if necessary.
(Refer to “Fill, Check, and Purge - Power Trim
System”) preceding.
3. Check for external leaks in the system. Replace
defective parts if leak is found.
4. Check for air in the system and purge if neces-
sary. (Refer to “Fill, Check, and Purge - Power
Trim System”) preceding.
NOTE
: When troubleshooting the hydraulic system,
cleanliness, and inspection of sealing surfaces,
seals, O-rings, and moving parts is important. The in-
ternal pressures required for proper operation of the
Power Trim System require these parts to be in excel-
lent condition. Replace any parts that may be suspect
of failure.
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