Maintenance and care
48
Fuel system
Fuel
If Diesel fuel which contains moisture is used the injection system and the cylinder liners
/ pistons will be damaged. This can be prevented to same extent by filling the tank as
soon as the engine is switched off while the fuel tank is still warm (formation of con-
densation is prevented). Drain moisture from storage tanks regularly. Installation of a wa-
ter trap upstream of the fuel filter is also advisable. Do not use any additives to improve
flow properties in winter.
Note:
Use only approved fuels, lubricants etc. (see brochure “Fuels, lubricants etc.”).
Otherwise the manufacturer’s warranty will become null and void.
Injection pump
Neither the injection pump nor the control unit must be modified in any way. If the lead
seal is damaged the engine warranty will become null and void.
Faults
We urgently recommend that you have faults in the injection pump rectified only in an au-
thorized specialist workshop.
Cleaning fuel pre-cleaner
D Strip the fuel pre-cleaner À
D Wash out filter housing Á and filter bas-
ket  in clean fuel
D Fit new seals Ã
D Actuate tappet of hand primer until
overflow valve of injection pump is
heard to open
D Screw in the tappet of the hand pump
again and tighten it
D Start engine
D Check fuel pre-cleaner for leaks
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