
5-4
OM 25-3503 us – Edition 4.1 * * 2503_3503b510.fm
Maintenance
Bleeding the fuel system
Bleed the fuel system in the following cases:
• After removing and fitting the fuel filter, prefilter or the fuel lines back on again
• After running the fuel tank empty
• After running the engine again, after it has been out of operation for a longer period of time
☞
Bleed the fuel system as follows:
•Fill the fuel tank
•Turn the starting key to the first position
•Wait about 5 minutes while the fuel system bleeds itself automatically
•Start the engine
If the engine runs smoothly for a while and then stops, or if it does not run smoothly:
•Stop the engine
•Bleed the fuel system again as described above
•Have this checked by authorized personnel if necessary
Water separator
Interrupt fuel supply as follows:
☞
Stop the engine.
☞
Turn ball-type cock
B
to the
OFF
mark
➥
Fuel supply is interrupted
☞
Turn ball-type cock
B
to the
ON
mark
➥
Fuel supply is open again
Check the water separator as follows:
• If the red indicator ring has risen to position
C
:
☞
Stop the engine.
☞
Interrupt fuel supply.
☞
Unscrew thread
A
➥
The fuel/water mixture drains
➥
Wait until the indicator ring returns to the bottom of the water separator
☞
Screw thread
A
back on again
Environment!
Thread
A
is fitted with a hose. Collect the fuel/water mixture as it drains with a
suitable container and dispose of it in an environmentally friendly manner.
2503 from AG00790:
3503 from AG00593:
The fuel/water mixture must be drained directly on the fuel filter in addition.
Perform this at regular intervals according to the maintenance plan.
Proceed as follows
☞
Stop the engine.
☞
Place a suitable container underneath the filter.
☞
Unscrew screw
A
.
➥
The fuel/water mixture drains from the filter housing.
☞
Drain about 10 ml (0.3 US fl. oz.) of the fuel/water mixture.
Fig. 265: Water separator
On
Off
B
C
A
Fig. 266: Fuel filter (from AG00580)
A
Содержание 2503
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Страница 40: ...1 28 OM 25 3503 us Edition 4 1 2503_3503b110 fm Introduction...
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Страница 230: ...5 48 OM 25 3503 us Edition 4 1 2503_3503b550 fm Wartung...
Страница 250: ...6 20 OM 25 3503 us Edition 4 1 2503_3503b610 fm Technical datac 2503 3503 long short stick...
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