Daedong CK22, Workshop Manual

Page: 307 / 372

10-27 DS35-W00 May. 2007
CLUTCHCLUTCHCLUTCHCLUTCHCLUTCH
TRANSMISSIONTRANSMISSIONTRANSMISSIONTRANSMISSIONTRANSMISSION
ENGINEENGINEENGINEENGINEENGINE
HSTHSTHSTHSTHST
FRONT AXLEFRONT AXLEFRONT AXLEFRONT AXLEFRONT AXLE
STEERINGSTEERINGSTEERINGSTEERINGSTEERING
BARKEBARKEBARKEBARKEBARKE
ELECTRICELECTRICELECTRICELECTRICELECTRIC
INDEXINDEXINDEXINDEXINDEX
HYDRAULICHYDRAULICHYDRAULICHYDRAULICHYDRAULIC
GENERALGENERALGENERALGENERALGENERAL
REAR AXLEREAR AXLEREAR AXLEREAR AXLEREAR AXLE
CK22/CK22H
Symptom
External leakage
control kit or opposite
side.
Excessive internal
leakage on A and B
ports.
Dropping load during
transition while raising.
Inability to build
pressure on A and B
ports.
3.2 JOYSTICK VALVE
Provable Causes
• Worn spool seal due to mechanical actuation or
high back pressure.
• Increase clearance between spools and body due
to high wear
• High leakage of the load check valve.
• Main pressure relief valve blocked open.
• Low pump pressure and flow.
Solution
Locate the leakage and
replace the seal.
Check back pressure level.
Replace the direction
control valve and check the
oil contamination level.
Remove the load check
valve and clean the seat.
Remove and clean or
replace the main relief valve.
Check the pump and circuit.
HYDRAULIC SYSTME - TROUBLESHOOTING