Autoquip DOUBLE PANTOGRAPH LIFT - Manual (Page 44)

44
' PH ' CYLINDER REPACKING (Reference Figure 6)
11. Slip the bearing assembly into place
.
Align the retainer hole in the bearing
assembly groove with the slot in the tube.
12. Insert the retainer hook end in the hole/slot and using a face spanner wrench.
Turn the bearing assembly clockwise until the retainer is completely inserted in
the groove/slot in the tube.
13.
Check the clevis pin bushings in the cylinder rod for wear and replace as
necessary.
14.
Pull out the rod end of the cylinder and install the assembled cylinder into the lift.
Carefully drive the clevis pin through the trunnion clevis and cylinder rod clevis.
Extreme care must be taken to prevent damage to the clevis bushings. Install the
set screw, (engaging the slot in the pin), and torque to 25 ft. lbs. The cylinder rod
may be further extended by hand to allow cylinder to contact the bottom thrust angle
clevis in leg assembly.
15.
Align the bottom cylinder clevis with the bottom thrust tube clevis and carefully drive
the clevis pin through. Extreme care must be taken to prevent damage to the clevis
bushings. Install the set screw, (engaging the slot in the pin), and torque to 25 ft.
lbs.
16.
Align the top cylinder rod clevis with the top trunnion clevis and carefully drive the
clevis pin through. Extreme care must be taken to prevent damage to the clevis
bushings. Install the set screw, (engaging the slot in the pin), and torque to 25 ft.
lbs.
17.
Connect the cylinder hydraulic hose to the tee in the leg assembly using the
recommended sealant. (See below)
18.
Check all pins and other mechanical and hydraulic components to assure that the
assembly is complete and in good working order.
19.
Turn the electrical supply back on and press the “UP” button on the controller to
raise the lift. NOTE: 15 to 30 seconds time may elapse to fill the empty cylinders
before movement is noted. NEVER raise a lift to the full raised height, until the
cylinders and hoses have been completely bled of air.
20. Remove and place the maintenance leg in its storage location, then press the
“DOWN” button on the controller to cycle the lift to the fully lowered position.
Hold the “DOWN” button 30 to 40 seconds to allow air in the cylinders to bleed
back into the reservoir tank.
GENERAL MAINTENANCE