2-21
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
(1) Pressure valve (2) Vacuum valve
196W229A
(1) Cooling air (3) Fin
(2) Tube
196W227A
196W228A
ENGINE - OPERATING PRINCIPLE
3.3.4 RADIATOR CAP
The pressure type cap is installed on the radiator, which
prevents the pressure difference between the inside
and the outside of the radiator from deforming the
radiator.
(A) At high pressure(higher than 88 kPa (0.9 kgf/cm², 13 psi))
When the water temperature rises and the pres-
sure in the radiator increase above the specified
pressure, the pressure valve (1) opens to reduce
the internal pressure.
(B) At low pressure
When the water temperature falls and a vacuum is
formed in the radiator, the vacuum valve (2) opens
to allow the air to enter the radiator.
3.3.2 THERMOSTAT
The thermostat is wax pellet type, which controls the
flow of the cooling water to the radiator to keep the
proper temperature. The case has a seat (1) and the
pellet has a valve (2). The spindle attached to the case
is inserted into the synthetic rubber in the pellet. The
pellet is charged with wax.
(A) At low temperature (lower than 71°C (160°F))
The valve (2) is seated by the spring (7) and the
cooling water circulates in the engine through the
water return pipe but does not engine the radiator.
(B) At high temperature (higher then 71°C (160°F))
As the water temperature rises, the wax in the pellet
(3) melts expands, repelling the spindle. The pellet
lowers and the valve (2) opens to send the cooling
water to the radiator.
3.3.3 RADIATOR
The radiator core consists of water carrying tubes (2)
with fins (3) at a right angle to it.
The air flowing through between the tube wall and the
fin cools the water in the radiator.
(1) Seat (6) Wax (solid)
(2) Valve (7) Spring
(3) Pellet (8) Leak hole
(4) Spindle (9) Wax (liquid)
(5) Synthetic rubber
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