Takeuchi TB 250 User Manual

5-12
5
TRAVELING
TROUBLESHOOTING
2nd speed travel is not possible
1 Check the gear pump
Faulty
Repair
or replace the gear
pump
Normal
2
Check
the pilot relief
valve
Faulty
Adjust,
repair or replace the
pilot relief valve
Normal
3 Check the fuse
Faulty
Replace the fuse
Normal
4
Check
the 2nd speed
switch
Faulty
Replace
the 2nd speed
switch
Normal
5
Check
the 2nd speed re-
lay
Faulty
Replace the 2nd speed r
elay
Normal
6
Check
the 2nd speed so-
lenoid valve
Faulty
Repair
or replace the 2nd
speed solenoid valve
Normal
7 Check the swivel joint
Faulty
Repair
or replace the swivel
joint
Normal
8
Check
the 2nd speed
control valve
Faulty
Repair
or replace the 2nd
speed control valve
1. Check the gear pump
Check the gear pump that supplies hydraulic pressure
for the 2nd speed switching.
“5-3”
Also, check the line filter for clogging, and clean it as
necessary.

Takeuchi TB 250 Specifications

General

Brand	Takeuchi
Model	TB 250
Category	Compact Excavator
Language	English