Kioti RX7320 - Page 49

TROUBLE SHOOTING 10-5
10
PROBLEM POSSIBLE CAUSE CORRECTION
6. System relief valve squeals.

Cold hydraulic uid.

Allow hydraulic uid to warm up to operating temperature.

Excessive load in bucket.

Weight exceeds specied
loader capacity.

Reduce load.

Relief valve setting below
specications.

Check and reset valve setting as needed.

Hydraulic hose, tube line or
quick disconnect coupler re-
striction.

Check for evidence of restriction in hydraulic oil ow. Repair
or replace defective components.
7. Loader drops with control
valve spool in "Centered"
position (no external oil
leakage evident.)
Note : A gradual drop over an
extended period of time is a
normal condition.

Cylinder piston assembly leak-
age.

Check cylinders for leakage.

Control valve internal leakage.

Replace control valve and recheck.
8. Control valve spool(s) will not
return to centered position.

Control lever linkage binding.

Determine origin of binding and repair.

Control valve spool centering
is broken.

Replace centering spring.

Control valve spool binding in
valve body spool bore.

Disassemble valve for inspection and repair.
9. External hydraulic uid
leakage.

Loose hydraulic connection.

Tighten loose connections.

Defective hydraulic hose, tube
line adapter tting & tting
O-ring.

Check for origin of oil leak and replace defective parts.
KL701-AU-10.indd 5 2013-03-29 오전 11:28:44