Takeuchi TB53FR - Speed Drops in the Left or Right Travel, Causing the Machine to Travel in a Curve

TROUBLESHOOTING
MACHINE TRAVEL
V-16TB53FR
SPEED DROPS IN THE LEFT OR RIGHT TRAVEL, CAUSING THE MACHINE TO TRAVEL IN A CURVE.
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Is the amount of travel
curve within standard?
Inspect the crawler ten-
sion and inspect for for-
eign matter biting in, etc.
Inspect the operation of
the spool.
Switch the left and right
pump discharge hoses.
Inspect the swivel joint.
Inspect the counterbal-
ance valve.
Not within Standard
Not abnormal
Normal
No change
Normal
Normal
Within
standard
Faulty
Faulty
The direction of travel curve
changes to the opposite side.
Faulty
Faulty
Normal
Adjust to the proper dimen-
sions or remove the foreign
matter.
Repair or replace the housing
block.
•
Repair the pump or replace it.
• Replace the hydraulic oil
and filter.
Repair or replace the swivel
joint.
Repair or replace the counter-
balance valve.
Repair or replace the travel
motor.
Depends on the com-
bination of equipment.
1. Is the amount of travel curve within stan-
dard?
If the amount of travel curve is within standards,
then operation is normal and the variation de-
pends on the combination of equipment.
“II. Specifications, Standards for Judging
Performance”
2. Adjust the tension of the crawler belt.
“II. Specifications, Standards for Judging
Performance”
5
Switch the left and right
main relief valves and
test.
The travel motor’s speed
reducer unit is faulty.
No change
Inspect the main relief
valve.
Repair or replace the main
relief valve.
The direction of travel
curve changes to the
opposite side.