376
TRIM AND TILT
SERVICING – THREE PISTON SYSTEM
SERVICING – THREE
PISTON SYSTEM
Disassembly
Thoroughly clean the unit before disassembling.
Scrub all outside surfaces with a stiff brush and
hot, soapy water to prevent surface dirt from con-
taminating internal parts.
Always use a lint free shop cloth when handling
power trim/tilt components.
If painting the unit is required, paint it after it is
completely assembled. Painting of individual com-
ponents may cause flakes of paint to enter the
hydraulic passages during assembly. Tape the
trim/tilt piston rods before painting.
Screw the manual release valve in. Remove the
retaining ring using retaining ring pliers. Remove
the manual release valve.
Inspect O-ring and two plastic split rings on the
manual release valve for nicks and cuts. Inspect
tip of valve for damage. The two plastic split rings
are not available separately. If rings are damaged,
replace the manual release valve.
Remove reservoir cap and drain the fluid into a
container. Inspect the O-ring in the cap.
WARNING
Before removing the manual release valve,
operate the unit to the full UP position,
then run the unit down momentarily and
loosen the reservoir cap one full turn.
To avoid personal injury, always wear eye
protection when servicing the hydraulic
unit. Since there might be significant
residual pressure behind some compo-
nents, cover each component with a shop
cloth as you remove it.
CAUTION
Do not apply heat to the cylinder body or
cylinders. Excessive heat can cause high
pressure leaks or failure of parts.
41739
1. O-ring
2. Plastic split rings
22863
1. Reservoir cap 41736
41751
1
2
1
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