TYM T474 - 4. Hydraulic System

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TROUBLESHOOTING
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4. HYdRaULIc SYSTEM
TROUBLE PROBaBLE caUSE SOLUTION
Hydraulic system
Oil leaks from the pipe
or hose
Loose clamp
•
Tighten
•
Cracked pipe
•
Have it replaced by workshop
•
The hydraulic pressure
won't be decreased
Lowering speed control lever xed to stop position
•
Set it to the lowering position
•
Defective valve
•
Have it repaired by workshop
•
Damaged cylinder
•
Have it repaired by workshop
•
Damaged and seizured lift shaft rotating part
•
Have it repaired by workshop
•
The hydraulic pressure
won't be increased
Insufcient engine RPM
•
Set the speed to 1000 to 1500 RPM
•
Insufcient transmission uid
•
Add to the specied level
•
Air sucked into suction pipe
•
Tighten the connection. If any pipe or hose is
cracked or O-ring is damaged, replace it
•
Clogged oil lter
•
Clean
•
Defective hydraulic pump
•
Have it repaired by workshop
•
Defective valve
•
Have it repaired by workshop
•
Damaged cylinder
•
Have it repaired by workshop
•
T474NH-영문-08(아).indd 7 2019-03-06 오전 10:05:57