Maintenance
8733−1/A1
Winterthur Gas & Diesel Ltd.
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Removal, Grinding and Installation
Tools:
1 Grinding tool 94871
1 Template 94871A
1. Preparation
1) Stop the engine (see the Operation
Manual 4003−1 paragraph 3.4).
2) Make sure that there is no pressure in
the fuel rail as follows:
a) Set to off the fuel booster pump
(plant).
b) Close the shut-off valves to the
fuel inlet and return pipes.
c) Open the drain valve
10.5562_E0_14, (see the
Operation Manual 8019 and the
control diagram 4003−2/A1) to
release the pressure in the fuel
rail.
d) On the flexView, make sure that
the pressure shows zero.
3) Set to off the electrical trace heating
system.
4) If necessary, remove the insulation
from the HP injection pipes (2, Fig.1).
2. Removal
CAUTION
Damage Hazard: Make sure
that you do not damage
the sealing faces or the HP
injection pipes.
1) Remove the applicable pipe
bracket (1).
2) On the injection valve (3) remove the
four screws (6) from the flange (5).
3) On the flange (9), remove the four
screws (7).
4) Carefully remove the applicable HP
injection pipe (2) from the injection
valve (3) and the injection control unit
(ICU) (8).
5) Apply protection to the sealing faces
(SF) and the open ends of the HP
injection pipe (2).
HP Injection Pipe
2015
Fig. 1: HP Injection Pipes − Removal
WCH02955
1
3
2
I
I
2
II
6
5
SF
4
I - I
SF
III - III
II
III
III
7
10
9
8
WCH02954
WCH02954
WCH02954
2