15
NOTE beveled
gear orientation
TOP will be
marked on top side
of restraint gear
15. Oil Filling & Bleeding: Use Dexron III ATF, or Hydraulic
Fluid that meets ISO 32 specifications. Remove fill-
breather cap, Fig. 10. Pour in (8) quarts of fluid. Start
unit, raise lift about 2 ft (62 cm). Open cylinder bleeders
approximately 2 turns, Fig. 12.
Close bleeders when fluid streams. Torque values for
the bleeders are 15 ft-lbs (20 Nm) minimum and 20 ft-lbs
(27 Nm) maximum. Fully lower lift. Add more fluid until it
reaches the MIN______ mark on the tank. Replace fill-
breather cap.
If fill-breather cap is lost or broken, order
replacement. Reservoir must be vented.
16. Overhead switch: Check overhead switch assembly
to assure that switch bar is depressing switch plunger
sufficiently to actuate the switch. The overhead switch is
wired normally open, see Fig. 21, Fig. 22, and Fig. 22b. Lift
will not operate until weight of switch bar is depressing
switch plunger. Verify that Power Unit stops working
when switch bar is raised, and re-starts when the bar is
released.
17. Arms & Restraints: Before installing arms, raise
carriages to a convenient height. Grease swivel arm pins
and holes with Lithium grease. Slide arm into yoke, Fig.
23a. Install 1-3/4” diameter arm pin(s), Fig. 23a.
After installing arms and pins, install arm Restraint Gears
as follows: Install Restraint Gear onto arm clevis, as
shown, Fig. 23b. Ensure side of gear marked TOP is facing
upward, Fig. 23b.
NOTE: TOP is stamped on top side of gear. You may
need to pull up on the pin-ring to allow enough room to
install Restraint Gear.
Arms With 5 Holes In Bearing Bar: Then, install the (2)
3/8”-16NC x 1-1/2” HHCS (8 total for all 4 arms) and 3/8”
Spring Lock washers into the gear and arm, but do not
tighten.
Fig. 23a
Fig. 23b
Installation
Pinch Point
Keep Hands
Above Groove
CAUTION
NOTE: Once arm is installed in yoke, pull up
actuator pin and swing arm fully around, being
sure that the Restraint Gear and Gear Block always
stay aligned. If they do not stay aligned, remove
restraint gear and install in the opposite position.
Reference Fig. 23c, Fig. 24a, and Fig. 24b. Arms With 3
Holes In Bearing Bars: Then, install the (2) 3/8”-16NC x
1-1/2” Lg. HHCS ((8) total for all (4) arms) into the gear and
arm. Using 3/8” hex jam nuts, secure restraint gears to
arms. Reference Fig. 23c and Fig. 24b.
Torque the Restraint Gear bolts to 30-34 ft-lbs (41-46Nm).
NOTE: To check operation of arm restraints, raise carriage
1” (25mm) min. from full down position. Pull up on pin-ring
and adjust arms to desired position. To engage restraint,
let pin-ring down allowing gear teeth to mesh together. It
may be necessary to rotate arm slightly to engage gear
teeth.
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