Takeuchi TB 250 User Manual

5-17
5
SLEWING
TROUBLESHOOTING
Slew right or left is not possible
1 Check the pilot valve
Faulty
Repair
or replace the pilot
valve
Normal
2
Check
the spool opera-
tion
Faulty
Repair
or replace the housing
block
Normal
3
Check
the slew relief
valve
Faulty
Repair
or replace the slew re-
lief valve
Normal
4
Check
the check valve of
the slew brake valve
Faulty
Repair
or replace the brake
valve
Normal
5 The slew motor is faulty
Repair
or replace the slew
motor
1. Check the pilot valve
It is likely that only the pilot valve spool on the side
where slewing is not possible is faulty.
“5-16”
2. Check the spool operation
It is likely that the spool does not move in the direction
in which slewing is not possible.
“5-16”
3. Check the slew relief valve
Switch between the left and right slew relief valves. If
slewing becomes possible, the relief valve is faulty.
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Takeuchi TB 250 Specifications

General

Brand	Takeuchi
Model	TB 250
Category	Compact Excavator
Language	English