Cav Distributor Pump; Technical Data - Sisu Diesel 320 Workshop Manual

CAV DISTRIBUTOR PUMP

Some 420--- and 620---engines are having a CAV made
DPA ---type distributor pump. The pump is equipped with an
electrical solenoid (ignition key starting and stopping) and
automatic bleeding system. The internal lubrication of the
injection pump is done by the fuel it is pumping. The sepa-
rate feed pump, of diaphragm type, is driven by the cams-
haft of the engine. The system is also equipped with a Ther-
mostart---device that receives the fuel through the fuel filter.

TECHNICAL DATA

Injection pump CAV
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Injection order
420 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
620 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Direction of rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Injection advance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel feed pump
Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel feeding pressure (static)
Fuel feeding pressure min. (used pump)
Injectors CAV
Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control pressure (new injector)
Control pressure (used injector)
Sealing ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tightening torques
Pump gear retaining nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nozzle retaining nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Injector retaining nuts (for the studs)
Fuel System
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
1
213--- 33
1. Installation marks of injection pump
2. Overflow flange
3. Throttle lever
4. Stop lever
5. Stop solenoid
6. Identification plate
DPA
1---2---4---3
1---5---3---6---2---4
clockwise
see pump installation marks
diaphragm pump, separate hand
lever
0,48 bar (48 kPa)
0,20 bar / max. rpm
five ---hole nozzle
+8
250 bar
+8
230 bar
8999 01495
90 Nm
60 Nm
15 Nm
13---16
3
4
5
6