• A leak exists in the low pressure fuel system.
• The fuel filter has been replaced.
Hand Fuel Priming Pump
Use the following procedures in order to remove air
from the fuel system:
1.
Ensure that the fuel system is in working order.
Check that the fuel supply valve (if equipped) is in
the
“
ON
”
position.
Illustration 53
g01333855
typical example
2.
Operate fuel priming pump (1). Count the number
of operations of the fuel priming pump. After 100
depressions of the fuel priming pump stop.
3.
The engine fuel system should now be primed and
the engine should now be able to start.
4.
Operate the engine starter and crank the engine.
After the engine has started, operate the engine at
low idle for a minimum of five minutes,
immediately after air has been removed from the
fuel system.
Note:
Operating the engine for this period of time will
help ensure that the fuel system is free of air.
Note:
Do not loosen the high pressure fuel line in
order to purge air from the fuel system. This
procedure is not required.
Contact with high pressure fuel may cause fluid
penetration and burn hazards. High pressure fuel
spray may cause a fire hazard. Failure to follow
these inspection, maintenance and service in-
structions may cause personal injury or death.
After the engine has stopped, you must wait for 60
seconds in order to allow the fuel pressure to be
purged from the high pressure fuel lines before any
service or repair is performed on the engine fuel
lines. If necessary, perform minor adjustments.
Repair any leaks from the low pressure fuel system
and from the cooling, lubrication or air systems.
Replace any high pressure fuel line that has leaked.
Refer to Disassembly and assembly Manual, “Fuel
Injection Lines - Install”.
If you inspect the engine in operation, always use the
proper inspection procedure in order to avoid a fluid
penetration hazard. Refer to Operation and
Maintenance Manual, “General hazard Information”.
Electric Fuel Priming Pump
1.
Ensure that the fuel system is in working order.
Check that the fuel supply valve (if equipped) is in
the
“
ON
”
position.
NOTICE
The electric fuel priming pump will operate for 90 sec-
onds. If necessary the electric fuel priming pump can
be stopped during the 90 seconds of operation, by
operation of the switch.
2.
Turn the keyswitch to the
“
RUN
”
position. Operate
the switch for the electric priming pump. After 90
seconds of the electric fuel priming pump
operation the fuel system will be primed and the
electric fuel priming pump will turn off.
3.
The engine should now be able to start.
4.
Operate the engine starter and crank the engine.
After the engine has started, operate the engine at
low idle for a minimum of five minutes,
immediately after air has been removed from the
fuel system.
Note:
Operating the engine for this period of time will
help ensure that the fuel system is free of air.
Note:
Do not loosen the high pressure fuel line in
order to purge air from the fuel system. This
procedure is not required.
88
SEBU8119-04
