Takeuchi TB215R Workshop Manual

TROUBLESHOOTING
BOOM SWING
1
5
BOOM SWING 5G3AX00
BOOM SWING
Swing cylinder does not move.
1. Check the operation of actuators other than of the
swing cylinder.
Determine if only the boom swing cylinder is faulty by
checking the operation of actuators for the devices
listed in the table on the right. If one of them is faulty,
check the main relief valve and the hydraulic pump
(main).
“5. Troubleshooting, Overall machine, All sys-
tems working, but insufficient force”
2. Check the spool operation.
• Spool stroke: 7 mm (0.3. in.)
• If the spool is sticking, try to take it out.
If it can’t be taken out or is scratched, replace the
housing block.
Note that the faulty spool operation could be
caused by the loosened bolt used for the return
spring.
1
Check the operation of
actuators other than of
the swing cylinder.
Normal
2
Check the spool opera-
tion.
Faulty
Repair or replace the housing
block.
Normal
3 Check the linkage.
Faulty
Adjust, repair or replace.
Normal
4
Check the anti-cavitation
valve.
Faulty
Repair or replace the anti-
cavitation valve.
Normal
5
Check the swing cylin-
der.
Faulty
Repair or replace the swing
cylinder.
Lever to operate
Device to check
Relief valve Pump
Right travel R2 P2
5G3AF01Z
5G3AX001

Takeuchi TB215R Specifications

General

Brand	Takeuchi
Model	TB215R
Category	Excavators
Language	English