9-10
SS41-W00
May. 2007
LK30
CLUTCHCLUTCHCLUTCHCLUTCHCLUTCH
ENGINEENGINEENGINEENGINEENGINE
TRANSMISSIONTRANSMISSIONTRANSMISSIONTRANSMISSIONTRANSMISSION
FRONT AXLEFRONT AXLEFRONT AXLEFRONT AXLEFRONT AXLE
STEERINGSTEERINGSTEERINGSTEERINGSTEERING
BARKEBARKEBARKEBARKEBARKE
ELECTRICELECTRICELECTRICELECTRICELECTRIC
INDEXINDEXINDEXINDEXINDEX
HYDRAULICHYDRAULICHYDRAULICHYDRAULICHYDRAULIC
GENERALGENERALGENERALGENERALGENERAL
REAR AXLEREAR AXLEREAR AXLEREAR AXLEREAR AXLE
Symptom
Implement dose not
rise
(no sound emitted)
(sound emitted)
Implement does not
reach maximum height
Implement does not
lower
Implement does not lift
with weight on lower
links
Implement hunts
(Moves up and down)
Oil temperature
increases rapidly or is
extremely hot
3. TROUBLESHOOTING
Provable Causes
• Control linkage improperly adjusted
• Control linkage improperly assembled or damaged
• Control valve malfunctioning (Unload valve, spool,
check valve, poppet valve)
• Relief valve spring weaken or broken
• Hydraulic piston O-ring, cylinder damaged
• Transmission fluid contaminated or low
• Oil filter clogged
• Suction pipe loose or broken
• Suction pipe O-ring damaged
• Relief valve setting pressure too low
• Relief valve spring weaken or damage
• Hydraulic pump malfunctioning
• Position control rod improperly adjusted
• Top link length improperly adjusted
• Position control valve spool joint (1) improperly
adjusted
• Hydraulic arm shaft, hydraulic arm, lift arm improp-
erly assembled
• Three point link improperly set
• Lever guide stopper position improperly adjusted
• Control valve malfunctioning
-
Down control valve closed
-
Spool damaged
-
Poppet valve adjusting nut improperly adjusted
• Hydraulic cylinder worn or damaged
• Hydraulic piston and cylinder cover O-ring worn or
damaged
• Lowering speed adjusting valve damaged
• Position control valve malfunctioning
-
Check valve seat surface damaged
-
Check valve O-ring damaged
-
Poppet valve seat surface damaged
-
Poppet valve O-ring damaged
• Poppet valve, poppet seat surface damaged
• Check valve, check valve seat surface damaged
• Control valve O-ring worm or damaged
• Poppet valve adjusting nut improperly adjusted
• Relief valve operating
• Hydraulic pump weak or damaged
• Oil leaks from valves
Solution
Adjust
Repair or replace
Repair or replace
Replace
Replace
Change or replenish
Clean or replace
Repair or replace
Replace
Adjust
Replace
Repair or replace
Adjust
Adjust
Adjust
Adjust
Adjust
Adjust
Open valve
Replace
Adjust
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Adjust
Adjust
Replace or repair
Replace or repair
HYDRAULIC SYSTEM - TROUBLESHOOTING
Lk30_09_hydraulic.p65
2007-07-26, ¿ÀÈÄ 12:06
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Содержание Kioti LK30
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Страница 194: ...MEMO Lk30_04_transmission p65 2007 07 26 12 05 Page 44 Adobe PageMaker 6 5K Win...
Страница 204: ...MEMO Lk30_05_rear axle p65 2007 07 26 12 05 Page 10 Adobe PageMaker 6 5K Win...
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