90-830234R3 DECEMBER 1997 MID-SECTION - 5B-29
Cleaning and Inspection of
Trim Rod Components
CAUTION
Do not remove check ball components from trim
rod piston. Removal and re-installation of check
valve could result in improper operating pres-
sure and possible power trim system damage.
a
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a - Check Ball Components
Inspect check valve for debris; clean debris form
check valve if found. If debris cannot be cleaned from
check valve, replace trim rod piston as an assembly.
Clean trim rod and components with parts cleaner
and dry with compressed air.
It is recommended that all O-rings in trim system be
replaced.
Inspect trim rod. If scraper (located in cap) has failed
to keep rod clean, replace scraper.
Lubricate all O-rings using Quicksilver Power Trim
and Steering Fluid or; (ATF) Type F, FA or Dexron III.
Motor and Electrical
Tests/Repair
Trim Pump Motor Test
WARNING
Do not perform this test near flammables (or ex-
plosives), as a spark may occur when making
connections.
1. Disconnect GREEN (motor) wire and BLUE (mo-
tor) wire from trim system wiring harness.
2. Connect a 12 volt power supply to motor wires
(POSITIVE to BLUE; NEGATIVE to GREEN re-
sults in motor up direction. POSITIVE to GREEN;
NEGATIVE to BLUE results in motor down direc-
tion). Motor should run.
3. If motor does not run, disassemble motor and
check components.
Solenoid Test
WARNING
Do not perform this test near flammables (or ex-
plosives), as a spark may occur when making
connections.
1. Disconnect all wires from solenoid terminals.
2. Set ohmmeter to Rx1 scale and connect meter to
solenoid terminals 1 and 2.
3. Connect a 12 volt power supply to terminals 3 and
4. Solenoid should click and meter should read
zero (0) ohms (full continuity).
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