TM 5-3805-290-23-2
PRIMING FUEL SYSTEM - CONTINUED
0029 00
PRIMING FUEL SYSTEM
1.
Turn battery disconnect switch to ON position (TM 5-3805-290-10).
2.
Turn engine start switch to ON position (TM 5-3805-290-10) for 60 seconds to operate fuel priming pump (3).
3.
Start and run engine for minimum of 5 minutes (TM 5-3805-290-10).
4.
If engine does not start, repeat steps 1 thru 3. If on second attempt, engine does not start, perform steps 5 thru 9.
CAU T I ON
Running engine for at least five minutes will help ensure that pump is completely free of air. It will also pre-
vent damage to internal parts of pump caused by metal-to-metal contact. If engine stops or runs roughly,
check for air in fuel system. If air is in fuel system, leakage in low pressure fuel system probably exists.
Damage to fuel injection pump, battery, and starter motor can occur if starter motor is used excessively to
purge air from fuel system.
Utilize two line wrenches to avoid damage to fittings.
N OT E
If engine does not run satisfactorily or will not start after two attempts of priming have been made, perform
steps 5 thru 9.
5.
Loosen two flare nuts (1) for high pressure fuel lines
on two fuel injection nozzles (2).
N OT E
DO NOT crank starter motor continu-
ously for more than 30 seconds. Allow
starter motor to cool for two minutes
before cranking engine again.
6.
Operate starter motor until fuel is flowing from fuel
lines (TM 5-3805-290-10).
427-B0276
CAU T I ON
Engine will start and run during cranking operation. Be aware of all moving parts during this procedure.
7.
Run engine until fuel from injector lines appears free of bubbles.
8.
Tighten flare nuts (1) to 16 lb-ft (22 Nm).
9.
Operate engine at low idle for a minimum of five minutes immediately after air has been removed from fuel system.
WAR N I N G
Before operating equipment, secure the steering frame lock in the stowed position. DO NOT operate
machine with steering frame lock connected. Failure to lock steering frame lock into the stowed position
before operating can result in loss of steering and injury or death to personnel.
10.
Secure steering frame lock in stowed position (TM 5-3805-290-10).
END OF WORK PACKAGE
0029 00-2
