Operation8016−1/A1
Winterthur Gas & Diesel Ltd.
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5. Servo Oil Leakage System
The level switches (LS) monitor all important leakages in the servo oil system.
If there is a large quantity of leakage oil, the related alarm is activated. See the table
below:
Level switch
Monitored components
LS3444A Monitors fuel and oil leakage from the rail unit
LS2055A Leakages from the HP servo oil pipes
LS2076A Leakages from hydraulic pipes
5.1 HP Servo Oil Pipes − Leakage
If the level switch(7, Fig. 4) (LS2055A) activates an alarm, the leakage inspection
point on the HP servo oil pipes (1) lets you find the location of the leakage. You can
then do the applicable procedure (see paragraph 5.2).
5.2 Procedure
WARNING
Injury Hazard: Always use gloves and safety goggles when you
do work on hot components. Oil can come out as a spray when
you open the drain screws.
1) On the flange (2, Fig. 4) of the HP servo oil pipe (1), carefully loosen the drain
screw (3) a maximum of one turn.
2) Do a check for oil.
3) If oil flows from the leakage inspection point, do as follows:
a) On the servo oil pump (6) of the related HP servo oil pipe (1), use the pressure
controller to adjust the pressure to minimum.
Note: You can operate the engine until the defective HP servo oil pipe is
replaced.
3
4
5
6
21
6
4
1
5
WCH01147
WCH01150
7
Fig. 4: Leakage Inspection Point − HP Servo Oil Pipes
1 HP servo oil pipe 5 Leakage oil pipe (HP servo oil pipes)
2 Flange 6 Servo oil pump
3 Drain screw 7 Level switch (LS2055A)
4 Connecting block
2014
Lubricating Oil System 6-cylinders to 8-cylinders
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