Takeuchi TB 250 - Dozer Blade Cylinder Does Not Move or Lacks Force

5-41
5
DOZER BLADE
TROUBLESHOOTING
DOZER BLADE
Dozer blade cylinder does not move or lacks force.
1
Check the operation of
actuators other than of
the dozer blade cylinder
Normal
2
Check
the spool opera-
tion
Faulty
Repair
or replace the housing
block
Normal
3 Check the linkage
Faulty
Adjust, r
epair or replace
Normal
4
Check
the supply pres-
sur
e of the control valve
Faulty
Repair
or replace the housing
block
Normal
5 Check the swivel joint
Faulty
Repair
or replace the swivel
joint
Normal
Dozer blade cylinder is faulty
Repair
or replace the dozer
blade cylinder
1. Check the operation of actuators other than of the
dozer blade cylinder
Determine if only the dozer blade 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).
“5-5”
2. Check the spool operation
“5-39”
3. Check the linkage
“5-39”
Lever to operate
Device to check
Relief valve Pump
Slew R3 P3