
Illustration 74
g01238305
3.
Tighten the grub screws (2) to a torque of 90 N·m
(66 lb ft).
4.
Install the guards (not shown).
5.
Restore the electrical supply to the engine.
i08456754
Fuel
Injector
-
Inspect/Adjust
NOTICE
Only qualified service personnel should perform this
maintenance. Refer to the Service Manual or your au-
thorized Perkins distributor for the complete proce-
dure to inspect or adjust the fuel injectors.
Operation of Perkins engines with fuel injectors that
have not been inspected or adjusted can reduce en-
gine efficiency, and also reduce engine component
life.
Refer to Systems Operation, Testing and Adjusting,
“Electronic Unit Injector - Test” and “Electronic Unit
Injector - Adjust” for the correct procedures to inspect
and adjust the fuel injectors.
i07398052
Fuel
Injector
-
Replace
Fuel leaked or spilled onto hot surfaces or electri-
cal components can cause a fire.
NOTICE
Do not allow dirt to enter the fuel system. Thoroughly
clean the area around a fuel system component that
will be disconnected. Fit a suitable cover over any
disconnected fuel system components.
NOTICE
If a fuel injector is suspected of operating outside of
normal parameters it should be removed by a quali-
fied technician. The suspect fuel injector should be
taken to an authorised agent for inspection.
Refer to the appropriate Disassembly and Assembly
manual for the removal and installation procedure.
i08238504
Fuel
System
-
Prime
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 day tank is empty or partially drained
• The low-pressure fuel lines are disconnected
• A leak exists in the low-pressure fuel system
• The fuel filter has been replaced
Use the following procedures to remove air from the
fuel system.
NOTICE
Do not crank the engine continuously for more than
30 seconds. Allow the starting motor to cool for two
minutes before cranking the engine again.
78
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