5B-22 - MID-SECTION 90-826148R2 MARCH 1997
Troubleshooting
Support outboard with tilt lock pin when servicing
power trim system.
IMPORTANT: After debris or failed components
have been found (during troubleshooting proce-
dure) it is recommended that unit be disas-
sembled completely and ALL O-rings be re-
placed. Check ball valve components and
castings must be cleaned using engine cleaner
and compressed air or replaced prior to re-as-
sembly.
IMPORTANT: Power trim system is pressurized.
Outboard must be in the full “UP” position (trim
rod fully extended) prior to fill/drain plug, or man-
ual release valve removal.
Refer to instructions following if disassembly is re-
quired when servicing.
Follow preliminary checks before proceeding to trou-
bleshooting flow diagrams (following).
Preliminary Checks
IMPORTANT: Operate Power Trim system after
each check to see if problem has been corrected.
If problem has not been corrected proceed to
next check.
1. Check that manual release valve is tightened to
full right (clockwise) position.
2. Check trim pump fluid level with outboard in full
“UP” position and fill if necessary. Refer to
“Bleeding Power Trim Unit”.
3. Check for external leaks in Power Trim system.
Replace defective part(s) if leak is found.
4. Outboard not holding tilted position (falls down to
trim position) indicates debris or defective com-
ponents in trim assembly. Clean or replace com-
ponents as required.
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