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Hydro-Park 1127 & 1123
USER MANUAL
44
MUTRADE INDUSTRIAL CORP.
Pressure cannot
be maintained
after platform
lifted up
Cylinder
retracts slowly
when
depressurizing
Cylinder does
not retract at all
when
depressurizing
Working noise
is too loud, or
abnormal noise
Motor does not
work
Valve element of one-way valve is blocked
One-way valve to be cleaned or replaced
Valve element of solenoid valve is blocked
Hydraulic oil deteriorates or is dirty
Throttle valve is blocked
Clean throttle valve and valve element
Throttle valve is not properly adjusted
Throttle valve to be re-adjusted
Valve element of solenoid valve is blocked
Solenoid valve to be cleaned or replaced
Valve element of solenoid valve is blocked
Solenoid valve to be cleaned or replaced
Coil of solenoid valve is broken, or
working voltage is too low
Replace coil of solenoid valve, or supply
normal working voltage
Motor is broken
Motor to be replaced
Hydraulic oil to be replenished into oil tank
Solenoid valve to be cleaned or replaced
Inlet filter is blocked
Replace coupling and clean inlet filter
Gear pump is broken
Gear pump to replaced
Hydraulic oil deteriorates or is dirty
Pressure relief valve is broken
Pressure relief valve to be replaced
Voltage shortage due to low supply voltage
Voltage stabilizer to be added
Voltage shortage due to too long
power line
Power line to be shortened, and
voltage stabilizer to be added
Voltage shortage due to too thin power
line
Thicker power line to be used, and
voltage stabilizer added
Starting capacitor is broken
Starting capacitor to be
replaced
Fitting of outlet pipe is not fastened or
sealing is broken
Fasten fitting of outlet pipe, or replace
sealing
Replace hydraulic oil, clean inlet filter and
oil tank
Air is absorbed into gear pump due to lack
of hydraulic oil in oil tank
Pressure relief valve is turned on to make
hydraulic oil go back to oil tank due to over
loading
Only cars within rated capacity can be parked
on platform. Or turn up setting pressure of
pressure relief valve (with permission by
Mutrade)
Replace hydraulic oil, clean inlet filter and
oil tank