Peak 409A, Installation And Service Manual

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VIII. TROUBLE SHOOTING
TROUBLE CAUSE REMEDY
Motor does
not run
1. Button does not work
2.Wiring connections are not in good
condition
3. Motor burned out
4. AC contactor burned out
5. Height limit switch is damaged
1.Replace button
2.Repair all wiring connections
3.Repair or replace motor
4.Replace AC contactor
5.Replace
Motor runs
but the lift is
not raised
1.Motor runs in reverse rotation
2. Hydraulic solenoid valve in damage
3.Gear pump in damage
4.Relief valve or check valve in damage
5.Low oil level
1.Reverse two power wire
2.Repair or replace
3.Repair or replace
4.Repair or replace
5.Fill tank
Lift does not
stay up
1.Solenoid valve out of work
2 Relief valve or check valve leakage.
3.Cylinder or fittings leaks
Repair or replace
Lift raises
too slow
1.Oil line is jammed
2.Motor running on low voltage
3. Oil mixed with Air
4.Pump leaks
5.Overload lifting
1.Clean the oil line
2.Check electrical system
3. Fill tank
4.Replace Pump
5.Check load
Lift cannot
lower
1.Air solenoid valve damaged
2. Hydraulic solenoid valve damaged
3.Air Cylinder damaged
4. Air –line leaked
1.Replace or repair
2.Replace or repair
3.Replace the cylinder
4.Check the air-line