JLG 660SJ Operator Manual - Manual (Page 70)

SECTION 4 - MACHINE OPERATION
4-16 – JLG Lift – 3121297
3. Position Auxiliary Power switch to On and
hold.
4. Operate appropriate control switch or con-
troller for desired function and hold.
5. Release Auxiliary Power switch, and appropriate control
switch or controller.
6. Position Power/Emergency Stop switch to
Off.
4.13 DUAL FUEL SYSTEM (GAS ENGINE ONLY)
The dual fuel system enables the standard gasoline engine
to run on either gasoline or LP gas.
IT IS POSSIBLE TO SWITCH FROM ONE FUEL SOURCE TO THE OTHER
WITHOUT ALLOWING THE ENGINE TO STOP. EXTREME CARE MUST BE
TAKEN AND THE FOLLOWING INSTRUCTIONS MUST BE FOLLOWED.
Changing From Gasoline to LP Gas
1. Start engine from Ground Control Sta-
tion.
2. Open hand valve on LP gas supply tank by turning
counterclockwise.
3. While engine is operating on Gasoline under a
no-load condition, place Fuel Select switch at
Platform Control to LP position.
Changing From LP Gas to Gasoline
1. With engine operating on LP under a no-load
condition, position Fuel Select switch at Plat-
form Control Station to Gasoline position.
2. Close hand valve on LP gas supply tank by
turning clockwise.