CLAS PE 6001, Manual

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PE 6001
DOUBLE SCISSOR LIFT 3T
Symptom
The engine does not
work
If the engine works by forcing the contactor with an
isolation rod, replace the contactor.
Connect the power cable to the power socket.
Modify the phases of the power cables
Check the limit switch, its cable and adjust or replace
the limit switch.
Check the plug and the descent valve, check that the
nut is properly sealed.
The safety pressure set on the overflow valve can be
increased by slightly rotating the right knob. The valve
is defective and should be replaced.
Remove the “antiknock valve” from the oil supply hole
placed at the bottom of the oil cylinder, and clean the
“antiknock valve”.
Replace the oil with an oil conforming to the operating
manual.
Refer to page 16 “Oil pressure adjustment
Operation”.
Check the hydraulic circuit and seals, then adjust the
pressure and the level of the oil.
Lubricate all pins and slider parts (including piston
rod) with mechanical oil.
Remove the “antiknock valve” from the oil supply hole
placed at the bottom of the oil cylinder, clean the
“antiknock valve” or replace it.
Add hydraulic oil.
The power cable is not plugged in by
the power outlet.
The AC contactor does not work.
The limit switch is not closed.
The motor turns reverse.
Lifting with light load works
normally but not with heavy load.
The hydraulic oil has a high viscosity, is
deteriorated or frozen (in Winter).
The air in the hydraulic circuit has not
been completely removed.
Oil leakages along the oil pipe or one
of its joints.
The lubricant is not enough.
The “antiknock valve” is blocked.
The amount of hydraulic oil is not
enough.
The descent valve is activated but does
not work.
The “antiknock valve” is blocked.
In lifting
operation, the motor
runs, but there is no
lifting
movement
The lift lowers very slowly
when subjected
to standard weight loads.
Platform P1 and P2 are
misaligned
Noisy lifting and
lowering
Cause Troubleshooting
Maintenance operations are only allowed to personnel with adequate training.
All pins and upper/lower sliding blocks of the lift must be lubricated regularly.
Hydraulic oil should be replaced once a year.
The oil level should always reach at least the upper limit indicated.
When replacing the oil, the lifting platforms of the lift must always be in the closed position, then
proceed with the extraction of the used oil.
The lift maintenance technicians must check that the pneumatic safety valve is reliable and in
operation.
Using the Lift:
MAINTENANCE & CARE
TROUBLESHOOTING