Kioti KL701 Manual page 49

PROBLEM
6. System relief valve squeals.
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.
8. Control valve spool(s) will not
return to centered position.
9. External hydraulic fluid
leakage.
KL701-AU-10.indd 5
POSSIBLE CAUSE
Cold hydraulic fluid.

Excessive load in bucket.

Weight exceeds specified
loader capacity.
Relief valve setting below

specifications.
Hydraulic hose, tube line or

quick disconnect coupler re-
striction.
Cylinder piston assembly leak-

age.
Control valve internal leakage.

Control lever linkage binding.

Control valve spool centering

is broken.
Control valve spool binding in

valve body spool bore.
Loose hydraulic connection.

Defective hydraulic hose, tube

line adapter fitting & fitting
O-ring.
CORRECTION
Allow hydraulic fluid to warm up to operating temperature.

Reduce load.

Check and reset valve setting as needed.

Check for evidence of restriction in hydraulic oil flow. Repair

or replace defective components.
Check cylinders for leakage.

Replace control valve and recheck.

Determine origin of binding and repair.

Replace centering spring.

Disassemble valve for inspection and repair.

Tighten loose connections.

Check for origin of oil leak and replace defective parts.

TROUBLE SHOOTING 10-5
2013-03-29 오전 11:28:44
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