WinGD W-X82 - Page 507

Operation
8019−1/A2
Winterthur Gas & Diesel Ltd.
11/ 13
WARNING
Injury Hazard: Always put on gloves and safety goggles when you
do work on hot components. When drain screws and plugs are
opened, fuel can come out as a spray and cause injury.
If the level switch (22, Fig. 1) (LS3446A) or (23) (LS3447A) activates an alarm, you
must find the related cylinder. Start at cylinder No.1 and do the procedure that follows
on each cylinder until you find the leakage:
1) On the ICU fuel leakage pipe (3, Fig. 6), carefully loosen the plug (6)
approximately two turns.
2) Do a check for fuel flow. If there is no fuel flow from the plug (6), do the
procedure given in paragraph 4.6.
If fuel flows from the plug (6), do the procedure that follows:
1) Make sure that the screws (5) are tightened correctly to 40 Nm as follows:
a) Symmetrically tighten the screws (5) to 20 Nm.
b) Symmetrically tighten the screws (5) to 40 Nm.
2) Do a check for fuel. If fuel continues to flow, an HP fuel pipe (1) is defective.
WARNING
Injury Hazard: The fuel system has high pressure. Replace a
defective HP fuel pipe only when the engine has stopped.
Note: If the HP fuel pipe cannot be replaced immediately, WinGD recommends
to cut out the related injection control unit (see 0510−1 Operation with
Injection Cut Out and 0515−1 Faults in the High Pressure Fuel System).
When an injection control unit is cut out (Inj. CUT OFF), you can operate
the engine only at decreased load.
To find the defective HP fuel pipe (1, Fig. 6) do the procedure that follows:
1) Stop the engine (see 0310−1 Engine Shutdown, paragraph 2).
2) Make sure that there is no pressure in the fuel system (see 0515−1 Faults in the
High Pressure Fuel System, paragraph 5.3).
3) Remove each of the three HP fuel pipes (1) until you find the defective HP fuel
pipe (1) (see the Maintenance Manual 8733−1).
4) Do a check for damage on the sealing face (7) of the defective HP fuel pipe (1). If
you find damage, you must grind the sealing face (see the Maintenance
Manual 8733−1).
5) If it is necessary to replace the defective HP fuel pipe (1), see the Maintenance
Manual 8733−1 and 0510−1 Faults in the High Pressure Fuel System,
paragraph 2.2.
2015-05
Fuel System 9-cylinders