Hatz 2 - 4 L 40 - Maintenance Every 1000 Hours of Operation

5.4.4. Engine oil change
(see Chapters 5.3.1. and 5.1.)
5.4.5. Renewing oil filter
Risk of scalding from hot oil.
Trap the old oil and dispose of it in an
environmentally acceptable manner.
– Using a strap wrench, unscrew the engine oil
filter with replaceable element and pull it out
(Figure 36).
Order number for strap wrench: 620 307 01.
– Wipe escaping oil out of the oil trap plate.
– Oil the sealing lip of the new filter element
lightly. Insert the filter element and screw up
handtight.
– Add engine oil of a suitable specification and
viscosity up to the MAX mark on the dipstick
(See Chapter 4.1.1.).
– After running the engine for a short time,
check the oil level again and correct it if
necessary.
– Check the filter element for leaks and tighten
by hand.
5.5. Maintenance every 1000 hours
of operation
5.5.1. Renewing the fuel filter
Do not smoke and never bring a naked
flame near the fuel system when work-
ing on it.
– On the encapsulated engine, take off the cap-
sule hood (see Chapter 2).
– On non-encapsulated engines, take off the side
trim.
– Place an absorbent cloth or wadding under the
filter to trap escaping fuel.
– Close the fuel supply line.
Note:
Fuel filter maintenance intervals depend on the
purity of the fuel used in the engine and should
be reduced to 500 hours if necessary.
Renewing the fuel filter
– Push on strap wrench „1“ and unscrew the
replaceable filter element by turning to the left
(Figure 37).
Order number for strap wrench: 620 307 01.
– Oil the sealing lip of the new filter element
lightly.
– Install the filter element and screw up
handtight.
– Open the fuel supply line again.
Note:
To make starting easier, it is best to prime the
fuel delivery pump at lever „1“ until fuel is heard
to flow back through return line „2“ and into the
fuel tank (Figure 9).
– Operate the lever to check for leaks.
– Install the enclosure and air guide elements
again.
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