Illustration 56 g03409849
2. Ensure that the battery disconnect switch is in the
ON position. Ensure that the keyswitch is in the
OFF position.
3. Remove the protection cap (1). Depress valve (2)
in order to purge air. Perkins recommend that a
tire inflator with a suitable length of clear hose
attached to be used. Refer to illustration 57 .
Illustration 57 g02948436
(A) Connection for clear hose
(B) Inflator
Note: The electric priming pump will only operate
with the keyswitch in the OFF position.
4. With tool (B) installed to valve (2) press button (4)
and keep the button depressed. The button will
illuminate and the priming pump will start to
operate.
5. When fuel has filled the bowl at the bottom of the
filter (3), the tool (B) can be removed. Ensure that
the protection cap (1) is install. The electric
priming pump will stop once the button is released.
6. Press again the button (4) and keep the button
depressed for approximately 2 minutes. After the 2
minutes, the fuel system will be primed and the
engine is ready to start.
7. Start the engine, refer to this Operation and
Maintenance Manual, “Starting the Engine or Cold
Weather Starting” for more information.
8. If the engine will not start repeat step 6 to step 7
Ensure that the keyswitch is in the OFF position
during fuel system prime.
• After the engine has stopped, you must wait for 10
minutes 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, “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”.
• If the engine will not start, refer to
Troubleshooting, “Engine Cranks but will not
Start”.
SEBU8731-04
93
Maintenance Section
Fuel System - Prime
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