369
TRIM AND TILT
TROUBLESHOOTING
14
• The “B” adapter, P/N 336659, checks operation
of the DOWN circuit.
This kit does not include a gauge and collar
assembly. Gauge and collar assembly shipped
with Power Trim/Tilt Service Kit, P/N 390010, will
work. Gauge and Collar Assembly, P/N 983975, is
also available.
Be sure to use a fully charged battery.
STEP 1
Screw the manual release valve in the hydraulic
unit until it is seated. Place a large drain pan
under the unit to catch hydraulic fluid.
Operate the unit to the full UP position, then run
the unit down momentarily to reduce pressure.
Loosen the reservoir cap one full turn. Loosen the
manual release valve three turns. Some fluid will
bypass the reservoir cap. These steps will relieve
the pressure in the unit.
Remove the manual release valve retaining ring
using retaining ring pliers.
Remove the manual release valve. Install pres-
sure gauge and adapter “A” to check problems in
the UP circuit.
IMPORTANT: Torque gauge and adapter lightly
to 5 to 10 in. lbs. (0.6 to 1.2 N·m). Excessive
torque might damage adapter or O-rings.
Cycle the unit down and up several times to purge
air. With all rods fully extended, run the unit down
momentarily to reduce pressure. Check fluid level
again, and add fluid if necessary. Remember that
1. A Adapter
2. B Adapter
27340
1. Manual release valve 41736
21
1
1. Manual release valve
2. Reservoir cap
41739
41754
2
1