AAQ AutoLift AL-162016, Руководство по установке и инструкции по эксплуатации

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162016
Chapter 7 TROUBLESHOOTING
Cause and Phenomena Resolutions
① Connection of power
supply wires or zero wire
is not correct.
Check and correct wire connection.
② The AC contactor in the
circuit of the motor does
not pick up.
If the motor operates 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.
The motor does not run
in lifting operation.
③
The limit switch is not
closed.
Short-circuit terminal 10# and 0#, which are
connected with the limit switch, and if the trouble
disappears, check the limit switch, wires and adjust
or replace the limit switch.
①
The motor turns reverse. Change the phases of the power supply wires.
②
Lifting with light load is
normal but no lifting with
heavy load.
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.
③ The amount of hydraulic
oil is not enough.
Add hydraulic oil.
In lifting operation, the
motor runs, but there is
no lifting movement.
④
The “operation stop valve”
is not open.
Turn right and open the “Operation stop valve and
supply hydraulic oil to main oil cylinder.
①
The safety pawl are not
released form the safety
teeth.
First lift a little and then lowering.
②
The safety pawl is not
lifted.
The air pressure is not enough or the safety pawl is
stuck.
③ The solenoid air valve
does not work.
If the solenoid air valve is energized, but does not
open the air loop, check or replace the solenoid air
valve.
④
The lowering solenoid
valve is energized but
does not work.
Check the plug and coil of the lowering solenoid
valve and check the right turn tightness of its end
copper nut and so on.
When press
“Lower” button, the
machine is not lowered.
⑤
The hydraulic oil has too
high viscosity or frozen,
deteriorated (in Winter).
Replace with 20# hydraulic oil in accordance with the
instruction book.
The machine lowers
extremely slowly under
normal loads. The “antiknock valve” for
preventing oil pipe burst is
blocked. Remove or close air supply pipe and thus lock the
safety pawl of the machine without lifting of the safety
pawl. Remove the “antiknock valve” from the oil
supply hole at the bottom of the oil cylinder, and clean
the “antiknock valve”.
① The air in the oil cylinder is
not vent completely.
Refer to “ Ⅶ . Oil Make-up ‘Adjust’ Operation”.
②
Oil leakage on oil pipe or
at its connections.
Tighten oil pipe connections or replace oil seals and
then make-up oil and adjust levelness.
The right and left
platforms are not
synchronous and not in
the same height.
③
The “oil make-up stop
valve” can not be closed
tightly and almost
make-up oil and adjust
every day.
Replace oil make-up stop valve, and then make-up
oil and adjust.
①
Lubrication is not enough. Lubricate all hinges and motion parts (including
piston rod) with machine oil. Noisy lifting and
lowering.
② The base or the machine
is twisted.
Adjust again the levelness of the machine, and fill or
pad the base.