PROCEDURE
1 Set to off the trace heating.
2 If necessary, remove the insulation from the HP fuel pipes (003 and 005, Figure 13-12).
3 If necessary, disconnect the trace heating pipes.
4 Put an oil tray under the applicable fuel pump.
5 Loosen the four screws (002) on the flange (001) a maximum of three turns.
6 Move the flange (001) away from the valve housing (004) and make sure that air goes
into the HP fuel pipe (003).
7 Loosen the four screws (009) on the flange (007) a maximum of three turns.
8 Move the HP fuel pipe (005) up. Make sure that there is a distance of approximately
3.0 mm between the fuel pump cover (007) and the HP fuel pipe.
NOTE: The fuel will drain through the drain bore (006) into the fuel leakage pipe.
9 Open the screw plug (010). If no fuel flows out, the HP fuel pipes (003, 005) are fully
drained.
10 Tighten the screw plug (010).
Fig 13-12 HP fuel pipe - preparation
010
00564
002
II
II
I - I
II - II
I
I
001
004
006
003
009
008
007
005
CLOSE UP
• None
X72DF
AA00-8752-00AAA-523A-A
Maintenance Manual HP fuel pipe (fuel pump to fuel rail) - prepare before removal
Winterthur Gas & Diesel Ltd.
- 757 - Issue 002 2020-10
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