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MAINTENANCE INSTRUCTIONS
E706 E707 E708
FUEL FILTER ELEMENT
REPLACEMENT
Before you replace fuel filter,
place a suitable vessel under the
engine for catching dripping fuel
from the filter.
1. release the nut (1)
2. unscrew bulb (2)
3. clean the bulb and replace the filter
element
4. check proper positioning of bulb seal-
ing
5. do the bulb back assembly
6. do fuel system venting
FUEL SYSTEM VENTING
Before you vent, place a suitable
vessel under the engine to catch
dripping fuel from the filter and in-
jection pump.
1. by several heaves of a manual con-
trol of feeding pump (1) pressurize
the fuel system
2. release the screw of branch pipe of
fuel feeder to filter (2) and allow the
fume to escape
3. tighten the screw (2) and repeat the
procedure to the moment when a
clear fuel starts flowing smoothly
from the filter.
4. vent injection pump in a similar pro-
cedure
5. vent with a screw (3) placed on the
body of the pump
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