Takeuchi TB 250 - Right;Left Travel Speed Decelerates, Causing Machine to Veer to Side

5-10
5
TRAVELING
TROUBLESHOOTING
Right or left travel speed decelerates, causing the machine to veer to one side
1
Is the veering within
specs?
W
ithin specs
Problem is caused by the
combination of devices
Normal
Out-of-specs
2
Check
the crawler belt
tension. Check for for-
eign matter caught in the
crawler belt
Faulty
Adjust
to the specified crawler
tension and remove the for-
eign matter
Normal
3
Check
the spool opera-
tion
Faulty
Repair
or replace the housing
block
Normal
4
Switch
the discharge hos-
es between the pumps
V
eering is changed to the op-
posite side
•
Repair or replace the pumps
• Replace the hydraulic oil or
the filter
No change
5
T
est by switching the main
relief valves
Veering is changed
to the opposite side
Check the main relief
valve
Repair
or replace the faulty
main relief valve
No change
6 Check the swivel joint
Faulty
Repair
or replace the swivel
joint
Normal
7
Check
the counter bal-
ance valve
Faulty
Repair
or replace the counter
balance valve
Normal
8
T
ravel motor reduction
gears are faulty
Repair or replace the travel
motor