5-4 OM 803 us – Edition 3.7 * * 803b510.fm
Maintenance
Refueling from barrels
If refueling from barrels cannot be avoided, note the following points (see fig. 189):
• Barrels must neither be rolled nor tilted before refueling
• Protect the suction pipe opening of the barrel pump with a fine-mesh screen
• Immerse the suction pipe opening down to a max. 15 cm (6 in) above the bottom of the
barrel
• Only fill the tank using refueling aids (funnels or filler pipes) with integral microfilter
• Keep all refueling containers clean at all times
Bleeding the fuel system
Injury hazard due to rotating parts!
Can cause serious injury or death.
• Before starting the engine, ensure that no one is within danger zone of the
engine/the machine!
• Start the engine only if the engine cover is closed!
Bleed the fuel system in the following cases:
• After removing and fitting the fuel filter, prefilter or the fuel lines back on again
• After running the fuel tank empty
• After running the engine again, after it has been out of service for a longer period of time
Bleed the fuel system as follows:
• Fill the fuel tank
• Turn the starting key to the first position
• Wait about 5 minutes while the feed pump bleeds the fuel system automatically
• Start the engine
• Check for leaks after starting the engine
• Let the fuel system run by performing a test run of 5 minutes at idling speed
If the engine runs smoothly for a while and then stops, or if it does not run smoothly:
• Stop the engine
• Raise the lock lever
• Remove the starting key
• Bleed the fuel system again as described above
• Have this checked by authorized personnel if necessary
Wrong
Right
Fig. 189: Refueling from a barrel
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