Anthony Lifgtates, Inc.
34
L-501 Models
www.anthonyliftgates.com
800-482-0003
10.2.2 Checking Motor Start Solenoid and Power
Cut-off Solenoid
Motor start solenoid.
Power cut-off solenoid.
Both the motor start solenoid and power cut-off solenoid
(if installed) can be checked by bypassing the solenoid
itself.
1. Use jumper cables for this test.
2. Connect one jumper cable to battery side (2) of the
solenoid. Connect the other cable to motor side (1) of
the solenoid.
3. If the liftgate is activated, the solenoid is defective and
should be replaced.
10.2.3 Checking the Power Cable
To check for a defective power cable, run the motor
directly from a spare battery using jumper cables.
1. Remove the battery connection to the motor.
2. Connect the negative jumper cable (ground) directly
to the liftgate. Connect the positive cable to the
terminal on the motor start solenoid.
3. If the motor operates, the battery cable is defective
and should be replaced.
10.2.4 Checking Cylinder Piston Seals
(drifting - caused by seal leakage)
A-1054
1
2
Piston rod seals (1) and packing gland nut and seals (2).
1. Completely raise the liftgate and hold the switch in the
“UP” position while checking for oil flowing out of the
cylinder’s breather port.
2. If a continuous flow of oil comes out of this port
(while the liftgate is all the way up and the switch is
held “UP”), then the piston seals are leaking and the
cylinder should be rebuilt or replaced.
If the cylinder is under warranty, do not rebuild. In these
cases the cylinder will be replaced.
10.2.5 Checking Flow Control Valve
If the cylinder does not operate or operates slower than
normal, remove the fl ow control valve and hook the
hydraulic hose directly to the cylinder. If the cylinder
operates properly, replace the fl ow control valve.
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