Injection Pump
Maintenance / Disassembly and reassembly
A5.05. 07.03.01.01
M20
en / 19.02.1996 IB002110 2/3
07
Ĺ
ĭ Safety note:
Caution spring tension!
1.4 Loosen fillister head screws (Fig. 1/4)
uniformly.
Remove injection pump bottom part (3)
with lower spring seat from injection
pump housing (5). Take care of fixing
pin.
1.5 Remove the following single
components from injection pump
housing (6):
Cam follower body (7), pressure plate
(8), distance plate (9), slot washer (10)
(a unit), pump spring (11), spring seat
(12), control sleeve (13), pump plunger
(14).
1.6 Unscrew guide screw (15), pull control
rod (16) out of injection pump housing
(6) and check toothing.
1.7 Clamp injection pump housing (6) with
valve support pointing upwards (17).
Unscrew locking screw (18).
1.8 Loosen fillister head screws (19) and
remove valve support (17). Take care of
stop (20) pressure valve spring (21), and
pressure valve (22).
1.9 Drive barrel (23) and constant pressure
release (24) with suitable piece of
rounded wood out of the injection
pump housing (6).
1.10 Clean all parts with gas oil and
a hard brush and blow through with
compressed air. Check lube oil bores
for free passage.
1.11 Renew all O-rings and sealing rings.
19
17
24
1
18
6
15
16
4
7
Fig. 1
21
20
22
23
2
14
13
12
11
10
9
8
3
25
5
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