Test The Fuel Select Operation - Ford And Gm Models - Genie GS-3384 Service Manual

Section 3 • Scheduled Maintenance Procedures
CHECKLIST B PROCEDURES
B-13
Test the Fuel Select Operation -
Ford and GM Models
The ability to select and switch between
gasoline and LPG fuels as needed is essential to
safe machine operation. A fuel selection can be
made while the engine is running or not.
Fuel switching malfunctions and/or the failure of
the engine to start and run properly in both fuel
modes and through all idle speeds can indicate
fuel system problems that could develop into a
hazardous situation.
Perform this test after checking
the gasoline and LPG fuel levels.
1 Start the engine from the platform controls and
allow the engine to run at low idle.
2 Press high idle button at the platform controls to
allow the engine to run at high idle.
Result: The high idle indicator light should be on
and the engine should start promptly and
operate smoothly in low and high idle.
3 Press high idle button again to return the engine
to low idle.
Result: The high idle indicator light should turn
off and the engine should return to low idle.
4 Press the engine stop button.
Result: The engine should stop.
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5 Press the LPG operation button.
Result: The LPG indicator light should be on.
6 Start the engine and allow it to run at low idle.
7 Press high idle button to allow the engine to run
at high idle.
Result: The high idle indicator light should be on
and the engine should start promptly and
operate smoothly in low and high idle.
The engine may hesitate
momentarily and then continue
to run on the selected fuel if the
fuel source is switched while
the engine is running.
GS-3384
September 2005
REV D
Part No. 82259