WinGD X92DF, Operation Manual

Page: 537 / 608

PROCEDURE
1 Do a check of the level switch LS3426A (if applicable also LS3427A) for free flow. If
necessary, clean the bore of the pipe of the level switch.
2 Carefully do a check of the temperature of the fuel leakage pipe (002, Figure 10-2 ) of
each fuel pump (001) to find the leakage pipe that has a fuel flow.
NOTE: There is a fuel flow in the leakage pipe that has a higher temperature than the
other leakage pipes.
3 Continue with Step 4 to find the location of the leakage at the related fuel pump and its
HP fuel pipes.
4 Do a check of the HP fuel pipe (005) at the highest inspection point (004) for leaks.
4.1 Carefully loosen the screw plug a maximum of two turns.
4.2 Do a check for fuel flow.
4.3 If there is fuel flow, repair the cause of the fuel flow as soon as possible, refer to
the Maintenance Manual 8752
‑
1.
NOTE: The fuel system has high pressure. Replace a defective HP fuel pipe
only when the engine has stopped and the pressure in the system is
released.
4.4 Tighten the screw plug.
Fig 10-2 Supply unit (example) and example of inspection point
001
002
003
004 005
Legend
001 Fuel pump 004 Inspection point
002 Fuel leakage pipe 005 HP fuel pipe
003 Supply unit
X92DF
AA00-0000-00AAA-311B-A
Operation Manual Examine the supply unit for fuel leakage
Winterthur Gas & Diesel Ltd.
- 537 - Issue 002 2020-08