5-7
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
2.3 FUNCTIONS OF EACH COMPONENT
2.3.1 HYDRAULIC PUMP
This is an axial piston pump with rotating swash plate
(variable displacement type).
The cylinder block with swash plate is rotated by the
drive shaft. The angle of the swash plate determines
the stroke of the pistons and the oil comes in and out
through the inlet and outlet port in valve plate at every
180°.
By adjusting the angle of the swash plate with trunnion
shaft, the amount of displacement can be changed. In
addition, the displacement direction can be changed
by angle of the swash plate. When changing the dis-
placement direction, the rotational direction of the mo-
tor can be changed (forward and reverse).
2.3.2 HYDRAULIC MOTOR
This is an axial piston motor with fixed swash plate
(fixed displacement type).
The oil pressure from hydraulic pump pushes the pis-
ton against the angled swash plate and therefore the
pistons slide down along with the slant surface. Due to
this, the cylinder block and output shaft assembled
with pistons are rotated. The angle of the swash plate
determines the stroke of the pistons and the oil comes
in and out through the inlet and outlet port in valve plate
at every 180 degree.
196W499B
196W4A1A
(1) Piston
(4) Valve plate
(2) Trunnion shaft
(5) Cylinder block
(3) Swash plat
(A) Input shaft
(C) Outlet port
(B) Inlet port
(1) Piston
(A) Output shaft
(C) Outlet port
(B) Inlet port
HST - OPERATING PRINCIPLE
Summary of Contents for CK22
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