6C-8 90-13645--2 495POWER-TRIM
Leak Down Check - Pump and
Manifold Assembly
The 1993 and 1994 models listed with power trim date
codes 13011 through 23288 ONLY may experience
a very slow trim rate (one minute or more) with the out-
board drifting back down as soon as the UP trim but-
ton is released. This failure usually occurs when the
unit is new or after 3 or 4 weeks of non use. The cause
may be a stuck spool inside the sleeve due to an over-
size or a hard o-ring on the spool (SERVICE BULLE-
TIN No. 93-22A).
NOTE:
Scribe pump housing and manifold before dis-
assembly.
1. Remove tilt cylinder from the manifold and re-
place pilot valve assembly.
50999
a
a - Sleeve with Spool Inside
2. The spool is considered stuck when the pin end
is protruding out past the end of the sleeve.
52790
a
SPOOL STUCK
a - Spool Pin
SPOOL NOT STUCK
52791
ab c d
e
Pilot Valve and Seat Removal
a - Pilot Valve
b - Valve Seat
c - Return Spring
d - Sleeve
e - Spool
To Next Page
Loading...
