7
Maintenance. Fuel system
Change
the filter elements
Stationary engine:
(Single and switchable filters)
1. Close the fuel valve/valves.
. Clean the filter bracket and put a suitable vessel
under the filter.
3. Relieve pressure inside the filter by first opening
the drain tap (1) at the bottom of the water trap
and then the venting nipple () to drain the filter
of fuel.
WARNING!
High pressure, open the tap with
caution. Hot fuel can spray out in any direction.
4. Remove the cables (3) from the water trap (4)
and unscrew the water trap from the filter.
5. Unscrew the filter, use a filter wrench if needed.
6. Clean the sealing surfaces of the filter bracket.
Make sure the filter is absolutely clean and the
sealing surfaces are undamaged. Moisten the
sealing rings with engine oil, including the inner
rubber seal located inside the threaded hole in
the center of the filter.
NOTE!
Do not fill the new filter with fuel before
assembly. Contaminations may get into the
system and cause damage and malfunction.
7. Screw the new filter on by hand until the seal
just touches the mating surface. Then tighten a
further 1/ turn. Reinstall the water trap and the
cables. Close the drain tap.
8. Open the fuel valve.
9. Open the venting nipple and pump up fuel with
the hand pump (5) until air-free fuel flows out.
Tighten the venting nipple while fuel is flowing out.
10. Remove the hose and put the protective cap
back on the venting nipple.
11. Start the engine and check for leakages.
1
3
2
4
5
Содержание D12
Страница 1: ...OPERATOR SMANUAL D12 ...
Страница 105: ...Notes ...
Страница 111: ......
Страница 112: ...7746214 English 05 2007 ...