Dato LJCC2040A Manual del usuario - Página 13
Navegue en línea o descargue pdf Manual del usuario para Sistemas de elevación Dato LJCC2040A. Dato LJCC2040A 18 páginas. Two post lift
Imprimir páginaFailure phenomenon
The motor doesn't
run in lifting
operation
When lifting
operation, the motor
runs but it is no
lifting movement
When press lower
button, the lift is not
lowering
Two carriages are not
synchronized when lift
Leak oil
Cause and Phenomena
connection of power supply
wires or zero wire is not
correct
the AC contactor in the
circuit of the motor does not
pick up
UP button failure
The motor turns reverse
lifting with light load is
normal but no lifting with
heavy load
the amount of hydraulic oil
is not enough
the descend valve is not
closed fastened
① the safety pawl are not
released from the safety
teeth
he solenoid air valve does
not work
The force of two steel cable
different or force not enough.
Oil pipe fitting loosen
user's manual
Check and correct wires connection
If the motor works when forcing the
contactor down with an isolation rod, check
the control circuit. If the voltage at two
ends of the contactor coil is normal, replace
the contactor.
Check the contact point of the button and
wires connection and exclude.
Exchange the phases of the power supply
wires
The set safe pressure of the over-flow valve
may be increased by turning the set knob
right ward slightly. The spool of the
lowering solenoid valve is stuck by dirt.
Clean the spool.
Add hydraulic oil
Check the descend valve and exclude.
First lift a little and then lowering
Check the solenoid loop circuit and solution
Adjust the cable adjustment nut.
Screw down the pipe fitting
13
Chapter 6 Trouble Shooting
Resolutions method