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2
--
3
-
4
21
Fig. 20 Injection pump
1-·-.-, Air venting screw;
2--
Locating screw;
3--
Inspection window cover;
4--
Control
fork ;5---· Oil
lever indicating palte; 6 - - Triangular
flange;
7 - - Rollerbear~
ing; 8 - - oil seal; 9 - - Camshaft; 10-- Injection pump lower housing; 11-- Control
rod; 12--Tappet and adjusting pad; 13--Check valve; 14--Pump element; IS--
Plunger spring; 16--Injection pump upper housing; 17--Delivery valve; 18--Deliv-
ery valve gasket; 19-- Delivery velve spring; 20-- Delivery velve holder; 21-- Inlet
banjo connection blot.
The· pump element ,delivery ·valve, plunger spring and delivery
valve holder are all installed in the upper housing of the injection
pump. The barrel and the delivery valve seat are pressed tighgtly
together within the upper housing by the delivery valve holder.
The locating screws
~are
used
to
prevent the barrels fro'm rotation.
The air trapped in the upper hous"ing can be vented
by
loosening
the vent screw. The upper housing together with all parts on it are
fastened on the lower housing with bolts.
47
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