Fav 900
Engine / Fuel Supply System
Purging Air from Fuel Supply System
G
Repair
Fav 900 Chassis Number 23/3001
02.11.2000
2060 000001
G
a
1/1
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Purging Air from Fuel Supply System
PM-Picturemodule
PM-Picturemodule
PM-Picturemodule
Text-module
Important:
Start engine an run it idle for apprx. 30 sec in order to allow the complete system to purge
residual air.
Caution:
Fuel runs within the lines! Any fuel spill must be cleaned up with rags . Be aware of safety and
environmental regulations!
PMTAB_Picture
For Operating EDC Injection System, careful
purging of the fuel Supply system is
compulsory!
Unscrew purging screw of the fuel filter by one to
two turns.
PMTAB_Picture
Actuate manual fuel lifting pump until fuel flows
without any bubbles.
Repeat this procedure on the second purging
screw
Check for leaks within the fuel supply system.
PMTAB_Picture
If air reaches the high pressure section of the
injection pump (Type VP 44), a further purging
step is to be carried out:
Purging the high pressure system becomes
necessary when the engine does not start any
more or if the tank went dry.
On steep slopes and with little fuel in the tank, air
may be aspirated by the injection pump
eventually. (Failure Code)
or after repairs on the fuel supply system.
Following steps must be carried out on at least 3
following cylinders :
● Loosen nut of the injection line on the injection
valve approx 1/2 turn.
● Crank engine with starter motor until fuel runs
out of .
● Tighten Nut (10 Nm) then for 60° angle.
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