MAINTENANCE
06.9
Maintenance
11-04
RoGator 418
Priming of the Fuel System
If air enters the fuel system, the air must be purged
from the fuel system before the engine can be
started. Air can enter the fuel system when the
following events occur:
•
The fuel tank is empty or the fuel tank has
been partially drained.
•
The low pressure fuel lines are disconnected.
•
A leak exists in the low pressure fuel system.
•
The fuel filter is replaced.
Use the following procedure in order to remove air
from the fuel system:
1. Loosen nut (2) on the fuel injection pump (1).
Fuel injection pump
1. Fuel injection pump
2. Nut
2. Operate the priming lever (4) on the priming
pump (3) until the fuel flows out of nut (2) free
of air.
Priming lever
3. Priming pump
4. Priming lever
3. Tighten nut (2) to a torque of 23 Nm.
4. If the fuel line for the air inlet heater has been
drained, loosen nut (5). Observe the connec-
tion and the flare nut. Operate the priming
lever on the fuel pump until the fuel is free of
air.
Fuel line
5. Nut fuel line
5. Tighten nut (5) to a torque of 22Nm.
6. Loosen flare nuts (6) for the high pressure
fuel lines on all of the fuel injection noz-
zles.
Flare nuts high pressure fuel lines
6. Flare nuts
7. Observe the connection at the flare nut.
Operate the starting motor until the fuel is
free of air.
8. Tighten flare nuts (6) to a torque of 27 Nm.
9. The engine is now ready to start. Operate
the engine at low idle for a minimum of five
minutes immediately after air has been
removed from the fuel system.
