Chapter 5 Maintenance - SATA AE5302 Manual Del Uso

Chapter 5 Maintenance

The maintenance of the lift shall be performed by trained personnel.
1 ） Apply oil at all hinge shafts of this machine with an oiler once a week.
2） Apply lubricating grease on the moving parts, including the safety gear rack and the upper and lower sliding blocks, once a month.
3） Disassemble the side slide plate and apply lubricating grease once a year.
4） After the new machine is used for three months, the hydraulic oil must be changed for the first time. After that the hydraulic oil
must be changed once a year, and the pump oil inlet filter and oil filler port filter shall be cleaned. The oil level shall always be kept
at the upper limit.
5） Safety determination of the structural strength of the lift must be conducted by the specialized department every five years.
6） For change of hydraulic oil, lower the machine to the lowest position and discharge the old oil from the hydraulic tank. The fresh oil
added into the hydraulic tank shall be filtered.
7） Inspect the pneumatic safety device for flexibility and reliability every shift.
1 ） Troubleshooting must be conducted by trained and experienced technicians
2） Fault symptoms and troubleshooting methods:
Fault symptom
② The AC contactor of the pump
The motor does not
motor main circuit does not pull
rotate when the Up
button is pressed
② The platform ascends with a
The motor rotates
③ The hydraulic oil is insufficient
but the platform
does not rise when
the Up button is
pressed.
⑤ The solenoid valve connector
AE5302/AE5302-3
Cause
① The power supply is
abnormal.
in.
③ Phase loss
④ The button switch is faulty.
① The motor rotates reversely.
light load but not with a heavy
load.
or the grade is incorrect.
④ The manual oil drain plug
of the solenoid valve is not
tightened.
is blown.
中文
Troubleshooting method
Inspect and eliminate the fault and connect the electric wires.
The motor will run if the contactor is pressed with an insulating rod
forcibly. Inspect the control circuit and replace the contactor if the
voltage at the contactor coil terminal is normal.
Check if all the voltage values between the three phases are 380V
with a multimeter. Note: a circuit tester cannot determine phase loss
Inspect the button contracts and wires and eliminate the fault.
Exchange the phase sequence of the incoming power lines.
Increase the safe pressure setting of the relief valve by rightwardly
rotating the valve slightly. If there is dirt in the valve core of the
lowering solenoid valve, clean the valve core.
Add or change the hydraulic oil.
Tighten the oil drain plug of the main lift or sub lift.
Replace the solenoid valve connector of the main lift or the sub lift.
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