Takeuchi TB53FR - Right or Left Travel Is Impossible

TROUBLESHOOTING
MACHINE TRAVEL
V-14TB53FR
1
2
3
4
5
6
RIGHT OR LEFT TRAVEL IS IMPOSSIBLE.
Inspect the operation of
actuators other than the
travel motor.
Inspect spool operation.
Inspect the linkage.
Inspect the swivel joint.
Inspect the counterbal-
ance valve.
Inspect the travel motor.
Normal
Normal
Normal
Normal
Normal
Faulty
Faulty
Faulty
Faulty
Faulty
Repair or replace the housing
block.
Adjust, repair or replace the
parts.
Repair or replace the swivel
joint.
Repair or replace the counter-
balance valve.
Repair or replace the travel
motor.
1. Inspect the operation of actuators other than
the travel motor.
If operation of the right or left travel motor is
impossible, operate each respective actuator in
accordance with the table at right. If operation is
faulty, inspect the main relief valve and pump.
2. Inspect spool operation.
• Spool Stroke : 8.0 mm
• If the spool is sticking, take it out and inspect
it. If it can’t be taken out, or if it is scratched,
replace the housing block.
Another cause of the spool not operating prop-
erly could be that the return spring installation
bolt is loose.
Lever
Operated
Place Inspected
If right travel
is impossible
If left travel is
impossible
Boom
Arm
Main Relief
valve R1
Pump P1
Pump P2