Operation
0510−1/A1
Winterthur Gas & Diesel Ltd.
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Operation with Injection Cut Out (One or More Cylinders)
1. Cut Out the Injection
If the injection of one or more cylinders must be cut out, do the procedure give in
steps 1) to 5).
1) In the LDU−20, get the FUEL INJECTION page (see 4002−2, paragraph 3.7 Fuel
Injection).
2) In the Inj. Cutoff column, set the parameter for the applicable cylinder to 1 to
isolate the injection.
Note: If there is a defect in the injection system (injection valve, high pressure
pipe, etc) only cut out the injection of the related cylinder. If possible, the
exhaust valve must always operate.
3) Disconnect the plug (3, Fig. 1) from the injection valve (1).
If it is necessary to operate the engine with the injection cut out for an extended
period, do steps 4 and 5.
4) Record the settings of the lubricating oil feed rate.
5) Decrease the lubricating oil feed rate for the related cylinder to the minimum
setting (see 4002−2, paragraph 3.9 Cylinder lubrication).
2. Injection Start
Replace the defective injection valve (see the Maintenance Manual 2722−1 Injection
valve ).
WARNING
Injury Hazard: You must put on gloves and safety goggles when
you do work on hot components. Oil can come out as a spray and
cause injury.
2.1 Defective High Pressure Pipe
Replace the defective high pressure pipe to the fuel injection valve as given in steps
1) to 3):
1) Stop the engine.
2) Disconnect the plug (3) from the injection valve (1).
3) Replace the defective high pressure pipe (2) (see the Maintenance Manual
8733−1 Fuel Pressure Pipes).
Note: If an HP fuel pipe between the fuel pumps and the fuel rail has a leak, do
the procedures given in 8019−1, paragraph 4 to find the leak.
Operation during Unusual Conditions
2014