HATZ Diesel 1D90W - Manual (Page 23)

5.4. Maintenance every 500
hours of operation
5.4.1. Renewing fuel filter
Fuel filter maintenance intervals depend on the
purity of the fuel used; reduce them to 250
hours of operation if necessary.
Do not smoke or bring a naked flame
near the fuel system when working on
it.
– Place a suitable vessel under the filter to trap
escaping fuel.
– Close the fuel supply line.
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– Pull fuel supply line „1“ off fuel filter „2“ at
both sides, and insert the new filter.
Important !
Keep the entire area clean so that no dirt
reaches the fuel. Fuel particles may damage
the injection system.
– Always renew the fuel filter. Note the arrows
indicating the correct direction of fuel flow.
– Open the fuel supply line or prime the pump
until the fuel flows (see Chapter 4.1.2.).
– Run the engine briefly to check the fuel filter
and lines for leaks.
5.4.2. Dry-type air cleaner maintenance
It is best to clean the filter cartridge only when
the maintenance indicator displays the appropri-
ate signal.
Apart from this, the cartridge should be renewed
after 500 hours of operation.
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– Slacken off wing bolt „1“ and remove it with
cover „2“.
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