2-24
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
A. PUMP ELEMENT
The pump element (1) consists of a plunger (3) and
cylinder (2) which their sliding surfaces are finely ma-
chined to maintain the fuel tightness. The plunger (3)
is installed in the control sleeve (5) and the sleeve is
engaged with the control rack that rotates the plunger
in the cylinder to control the amount of fuel delivered.
(1) Pump element (5) Control sleeve
(2) Cylinder (6) Control groove
(3) Plunger (7) Sliding surface
(4) Feed hole
T46W237A
(1) Delivery chamber (4) Feed hole
(2) Plunger (5) Fuel chamber
(3) Delivery valve (6) Control
B. OPERATION OF PUMP ELEMENT
a. Before delivery
As the plunger (2) lowers, fuel is drawn into the delivery
chamber (1) through the feed hole (4) from the fuel cham-
ber (5).
b. Beginning of delivery
When the plunger is pushed up by the cam and the
head of the plunger closes the feed hole (4), the pres-
sure in the delivery chamber (1) rises to push the deliv-
ery valve (3) open.
c. Delivery
While the plunger (2) is rising, delivery of fuel continues.
d. End of delivery
When the plunger rises further and the control groove
(6) on its periphery meets the feed hole, the injection
stops because the pressure in the delivery chamber
(1) is reduced to the opening pressure.
T46W238A
4
5
6
7
2
3
1
3
6
5
1
2
4
ENGINE - OPERATING PRINCIPLE
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