U-Line H-2651 Manual Download Page 4

0812 IH-2651

PAGE 4 OF 4

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 with a new one.

Replace with a new one.

Forks descend without engaging 

the lower lever. 

Impurities in the oil caused release valve 

to not close tightly.

Seals are worn out or damaged.

Release valve is damaged.

Change the oil.

 

Replace with a new one.

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

π

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