GILLIG LOW FLOOR, Руководство по обслуживанию

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Engine
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Secondary Fuel Filter Replacement
The secondary fuel filter should be replaced at the intervals specified in the Preventive Maintenance
chapter. The ISL engine on your bus uses the Fleetguard fuel filter (P/N FF5488).
Do not add fuel to the new filter before installing! Unfiltered fuel will
contaminate the fuel system and could necessitate costly repairs!
To replace the filter:
1. Clean the area around the filter head.
The wiring harness and other electrical equipment must be shielded
during the filter change, since diesel fuel can permanently damage
electrical insulation.
2. Remove and properly dispose of the filter.
3. Remove the fuel filter thread adaptor sealing ring.
4. Clean the gasket surface of the filter head.
5. Install the new thread adapter sealing ring supplied with the new filter.
6. Do not add fuel to the new filter (see CAUTION above). Lubricate the new filter’s O-ring seal
with clean 15W-40 lubricating oil.
To prevent air leaks, make sure the filter is installed tightly but not
overtightened. Mechanical overtightening can distort the threads or
damage the filter element seal.
7. Install the filter on the filter head. Turn the filter until the gasket contacts the filter head surface.
Tighten the filter an additional 1/2 to 3/4 of a turn, or as specified by the filter manufacturer if us -
ing a filter other than the Fleetguard.
8. Prime the fuel system using the fuel lift pump as explained in “Priming the Fuel System” above.