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0219 IH-5439
OPERATING ISSUE
CAUSES
RECOMMENDATIONS
The forks do not go up to the
maximum height.
Not enough hydraulic oil.
Oil has impurities.
Pour in hydraulic oil.
Change the oil.
The motor does not turn on.
Emergency Shut-Off is pressed down, the
power is cut off.
The voltage is too low.
Wire connections have come loose.
Connector to DC motor is bad.
Turn it clockwise, switch the power on.
Charge the stacker.
Check and reconnect any loose wires.
Replace with a new one.
The forks do not go down.
Piston rod or mast is damaged, resulting
from incorrect loading or overloading.
Fork was kept in the up position for a
long time and the piston rod rusted or is
jammed.
Release valve of the pump is not opened.
Replace with a new one.
Lubricate piston rod. Always keep the fork
in the lowest position when not in use.
Check it. If damaged, replace with a new
one.
Leaks.
Seals are worn or damaged.
Piston parts are cracked or worn too small.
Replace seal(s).
Replace parts as necessary.
Forks descend without engaging
the lower lever.
Impurities in the oil caused release valve
not to close tightly.
Seals are worn out or damaged.
Release valve is damaged.
Change the oil.
Replace seal(s).
Replace with a new one.
Battery does not charge.
Battery is bad.
Charging plug is loose.
Replace with a new one.
Check connection and reattach if
necessary.
TROUBLESHOOTING
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