Takeuchi TB53FR - Slewing Speed Is Low, or There Is no Power

TROUBLESHOOTING
SLEWING
V-25 TB53FR
SLEWING SPEED IS LOW, OR THERE IS NO POWER.
1
3
4
Is the time needed for
slewing within the stan-
dard?
Within the standard.
Normal
Inspect the operation of
the spool.
Inspect the slew hydrau-
lic pressure.
Repair or replace the pilot
valve.
Repair or replace the housing
block.
Adjust the set pressure.
Not within the standard
2 Inspect the pilot valve.
Normal
Normal
Normal
Faulty
Faulty
Pressure is low.
Repair or replace the slew re-
lief valve.
Adjust the pressure of
the slew relief valve.
Pressure does not rise.
6
5
Normal
Normal
Faulty
Faulty
Inspect the check valve
of the slew brake valve.
Inspect the slew motor
drainage amount.
The slew bearing is faulty. Replace.
Repair or replace the slew
brake valve.
Repair or replace the slew
motor.
7
Faulty
Inspect the slew reduc-
tion gear.
Repair or replace the slew re-
duction gear.
Normal