Four post parking lift Happ25 4 post hoist
24
7. Trouble Shooting
Malfunctions
Cause
Solution
Motor does not
work.
The
power
source
or
power
equipment is malfunctioning.
Check up the power fuse, the
contact in the junction box of
motor, micro switch, and the
condition of up button, change the
damaged part.
Or check limit switch connector
has not been disconnected (open
circuit)
Motor roars and
does not work.
a. The top of vane wheel is
deformed.
b. Capacitor is damaged.
c. The voltage is too low.
The equipment is used overload.
a. Straighten fan blades
b. replace for new parts
c. check up by electric electrician
When the lift is
rising, it creeps.
Air has entered the hydraulic system,
or the oil container lacks oil.
Rise repeatedly to remove the air,
and add oil to oil container.
Noise is too loud
when the lift is
working.
The sliding and rotational part lack
lubrication and or change the pulleysl.
Add dry lubrication, change the
pulleys.
The lift can’t rise. a. There is something wrong with the
power unit.
b. the button on the power unit is
damaged.
c. Leakage of oil pipeline
d. Cables are disconnected
a. Maintain or change for new
parts.
b. Maintain or change for new
parts.
c. Clean, tighten and change for
new parts.
d. Reattach or replace cable.
When lift is rising
the speed is slow
and heavy.
a. There is not enough hydraulic oil.
b. Leakage of oil pipeline
c. Oil filter is stopped up.
a. Add hydraulic oil
b. Maintenance,
tighten
and
change for new parts.
c. Disassemble and clean.
The
lift
can’t
drop.
a. The security block is not open.
b. Magnets are damaged heavily.
c. Blockage in oil return filter
a. Rise first then drop, or maintain.
b. Change for new parts.
c. Remove lowering handle,
remove valve and clean filter
d. Replace filter
