Winco 1B40 - Manual (Page 18)

5.4. Maintenance every 500
operating hours
5.4.1. Renewing fuel filter
The maintenance intervals for the fuel filter are
dependent upon the purity of the diesel oil being
used and, if necessary, may have to be reduced
to 250 hours.
When working on the fuel system, do
not expose it to naked flames; do not
smoke.
Important:
Keep the entire area clean so that no dirt
reaches the fuel.
Model with fuel filter in fuel tank
– Open the tank cover and pull the fuel filter out
of the tank by its cord; Fig. 40.
– Pull fuel supply line „1“ off fuel filter „2“ and
insert a new filter, Fig. 41.
– Fit the fuel filter again and close the tank cap.
Bleeding of the fuel injection system takes
place automatically.
Model with external fuel filter
– Empty the fuel tank by taking out screw „1“,
Fig. 25 or Fig. 26 and allow the fuel to drain
into a clean vessel. This fuel can be re-used
later.
– Unscrew the fuel filter from its mount, Fig. 42.
– Place a suitable vessel under the filter to trap
the residual fuel.
– Pull off fuel supply line „1“ at both ends of fuel
filter „2“ and insert the new filter, Fig. 43.
– Always renew the fuel filter. Note the arrows
indicating the correct direction of flow.
– Secure the filter to its mount.
– Fill the fuel tank with diesel oil; Chapter 4.1.3.
Air is vented from the fuel system automati-
cally.
– Check the fuel filter and lines for leaks after a
short test run.
5.4.2. Air cleaner maintenance
The filter cartridge should only be cleaned when
the maintenance lamp lights at maximum speed,
Chap. 5.2.3.
However, the filter cartridge should always be re-
placed after 500 operating hours at the latest.
– Remove the air cleaner cover, Fig. 30.
– Unscrew and remove knurled nut „1“ and take
off air cleaner element „2“, Fig. 44.
– Clean the filter compartment and the cover.
Dirt and other foreign bodies must not be
allowed to enter the engine’s air inlet points.
– On versions with a mechanical air cleaner
service indicator, check the condition and
cleanliness of valve plate „1“, Figure 45.
– The filter cartridge should either be renewed
or, depending upon the degree of contamina-
tion, cleaned, or checked, as follows:
Cleaning the filter cartridge
Dry contamination
Use compressed air to blow through the filter
cartridge from the inside outwards, until no fur-
ther dirt emerges, Fig. 46.
Important !
The pressure must not exceed 5 bar.
Moist or oily contamination
Renew the filter cartridge.
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