Maintenance
8733−1/A1
Winterthur Gas & Diesel Ltd.
1/ 3
Removal, Grind the Sealing Faces and Installation
Tools:
1 Grinding tool 94871 1 Hand drill
1 Stencil 94871A
1. Preparation
1) Stop the engine (refer to the Operation
Manual 4003−1.
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) To release the pressure in the fuel
rail, operate the button on the
pressure control valve (PCV).
d) On the LDU, 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 (1, Fig. 1).
5) Disconnect the electrical
connection (5).
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 (2).
2) On the injection valve (4), remove the
four screws (6) from the flange (7).
3) On the flange (8), remove the four
screws (9).
4) Carefully remove the HP injection pipe
(1) from the injection valve (4) and the
and flow limiter valve (3).
5) Apply protection to the sealing faces
(SF) and the open ends of the HP
injection pipe (1).
HP Fuel Pipe (Injection Valve)
2015
I
WCH02279
I - I
SF
Fig. 1
5
1
3
2
4
7
1
I
III
III
II
II
III - III
SF
9
8
3
6
1
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