JLG M450 ANSI Service Manual - Manual (Page 99)

SECTION 3 - CHASSIS & TURNTABLE
3121127 – JLG Lift – 3-59
Priming the Fuel Line
The following procedure is for re-priming the fuel line on
the generator engine in the event fuel system components
have been replaced or the unit has been run dry of fuel.
1. Make sure the fuel line isn’t blocked or kinked.
2. Make sure fuel tank has fuel.
3. Disconnect the rubber fuel line at the fuel injector
pump.
4. When fuel starts to flow out of the rubber line, re-
connect the fuel line to the fuel injector pump.
5. Clean up any spilled fuel and try to start the genera-
tor engine.
6. If the engine still doesn’t start, remove the steel line
from the fuel injector pump.
7. Once fuel starts to flow, re-connect the fuel line to
the fuel injector pump.
8. Clean up any spilled fuel and try to start the genera-
tor engine.
9. If no fuel flows there are some possibilities:
a. There is no fuel getting to the injector pump. No
fuel in tank, or obstruction in fuel line, or clogged
inline fuel filter.
b. The engine/camshaft rotation is not opening the
injection fuel pump. Using the recoil starter,
rotate the engine 1/3 of a turn and fuel should
spill from the fuel injector pump.
10. Engine might run rough for 20 seconds or so, but it
will clean out.