Page 18 of 20
f.
TROUBLESHOOTING
Motor thermal overload tripped
Wait for overload to cool
Faulty wiring connections
Call electrician for checking
Motor runs but lift does
not rise
A piece of trash is under check
valve
Push handle down and push the up
button at the same time. Hold for
10-15 seconds. This should flush
the system.
The clearance between the
plunger valve of the lowering
handle is too small
Check the clearance between the
plunger valve of the lowering
handle. There should be 1/16”
Dirty on the ball and seat of
check valve
Remove the check valve cover and
clean ball and seat
Oil level too low
Oil level should be just under the
vent cap port when the lift is down
Oil Blows out breather
of power unit
Lift lowered too quickly while
under a heavy load
Remove excessive weight from lift.
Reduce the oil to the oil level
Motor hums and does
not run
Impeller fan cover is dented
Lift Overloaded
Remove excessive weight from lift
Lift Jerks going up and
down
Rails lift all the way to the top and
return to the floor. Repeat 4-6
times. Do not let this overheat
power unit.
Oil Leaks around the tank-
mounting flange. Oil reservoir
overfilled
Check the oil level to the tank. The
level should be two inches below
the flange of the tank. Check with a
screwdriver
Oil leaks around the rod end of
the cylinder. The rod seal of
the cylinder is out
Rebuild or replace the cylinder
Oil leaks around the breather
end of the cylinder. The piston
seal of the cylinder is out.
Rebuild or replace the cylinder
Lift makes excessive
noise
Leg of the lift is dry and
requires grease.
Cylinder pulley assembly or
cable pulley assembly is not
moving freely
Grease the pulley assembly.
May have excessive wear on
pins or cylinder yoke
Replace the pins or cylinder yoke.
To Next Page
Loading...
Need help?
General
