Daedong CK22 - Description and Operation

10-12
DS35-W00 May. 2007
CLUTCHCLUTCH CLUTCHCLUTCH
CLUTCH
TRANSMISSIONTRANSMISSION TRANSMISSIONTRANSMISSION
TRANSMISSION
ENGINEENGINE ENGINEENGINE
ENGINE
HSTHST HSTHST
HST
FRONT AXLEFRONT AXLE FRONT AXLEFRONT AXLE
FRONT AXLE
STEERINGSTEERING STEERINGSTEERING
STEERING
BARKEBARKE BARKEBARKE
BARKE
ELECTRICELECTRIC ELECTRICELECTRIC
ELECTRIC
INDEXINDEX INDEXINDEX
INDEX
HYDRAULICHYDRAULIC HYDRAULICHYDRAULIC
HYDRAULIC
GENERALGENERAL GENERALGENERAL
GENERAL
REAR AXLEREAR AXLE REAR AXLEREAR AXLE
REAR AXLE
CK22/CK22H
The double-spool remote valve also contains a spring-
loaded detent mechanism to provide a float position
for loader operation. In float position, fluid is free to
flow between piston and rod sides or the loader lift
cylinder allowing the lift arms to float over uneven terrain.
The double-spool remote control valve contains check
valves located in the valve spool passages. The check
valves function to hold the loader lift and bucket cylin-
ders in a fixed position while the valve is being initially
operated to prevent dropping the load. In operation, the
check valve is retained on its seat by spring force plus
the back side pressure of fluid contained in the loader
cylinder. During initial spool movement, pump-pres-
surized fluid fills the passage to the check valve, and
the remaining pump fluid flows to the sump through
the open center passage. With continued spool
movement, the open center passage closes.
Pump pressure increases on the force of the check
valve, overcoming the backside pressure, and causes
the check valve to open. Pump fluid flow then flows to
the cylinder. This action prevents any backflow out of
the cylinder and provides a smooth-lifting action of the
loader.
196W916A
196W918A
2.5.1 DESCRIPTION AND OPERATION
The Joystick valve is mounted on the right fender.
(1) Joystick valve
HYDRAULIC SYSTME - OPERATING PRINCIPLE