F
TROUBLESHOOTING
6
▶ STEERING WHEEL
3. STEERING WHEEL & HYDRAULIC SYSTEM TROULESHOOTING
▶ HYDRAULIC SYSTEM
ISSUE CAUSE ACTION
S
T
E
E
R
I
N
G
The steering wheel feels heavy or
The steering wheel vibrates
• Improper toe-in
• Incorrect tire inflation pressure
• Vibration from each connection
• Adjust toe-in
• Set left and right tires to same specified
pressure
• Tighten or replace connection
The free movement of steering wheel is
excessive
• Worn steering wheel shaft
• Worn metal parts
• Free play from each connection
• Have it repaired by workshop
• Have it repaired by workshop
• Tighten free play of each connection
ISSUE CAUSE ACTION
H
Y
D
R
A
U
L
I
C
S
Y
S
T
E
M
Oil leaks from the pipe or hose
• Loose clamps
• Cracked pipes
• Tighten clamps
• Have it replaced by workshop
Hydraulic pressure won’t be decreased
• Lowering speed control lever fixed
• Defective valve
• Damaged cylinder
• Damaged and seized lift shaft rotating part
• Set it to the lowering position
• Have it repaired by workshop
• Have it repaired by workshop
• Have it repaired by workshop
The hydraulic pressure won’t be
increased
• Insufficient engine RPM
• Insufficient transmission fluid
• Air sucked into suction pipe
• Clogged oil filter
• Defective hydraulic pump
• Defective valve
• Damaged cylinder
• Set the speed to 1,000 to 1,500 RPM
• Add to the specified level
• Tighten the connection.
If any pipe or hose is cracked or O-ring is
damaged, replace them.
• Have it repaired by workshop
• Have it repaired by workshop
• Have it repaired by workshop
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