Dual Fuel System (If Equipped) - JLG RT3394 Operation & Safety Manual

Machine Controls, Indicators, and Operation
4. If operating a dual fuel machine, place the LP/gasoline select switch in the
platform to the desired position.
Note: If LPG system is selected, ensure the hand valve on LPG supply tank is
opened prior to attempting to start engine.
If engine fails to start promptly, do not crank for an extended period; do not run
starter motor for more than 20 seconds. Should engine fail to start once again,
allow starter to cool off for 2 to 3 minutes. If engine fails to start after several
attempts, refer to engine manual.
5. To start machine:
• At Ground Controls: Position emergency stop switch to on, depress start
button, and hold until engine starts.
• At Platform Controls: Position ground and platform emergency stop switch(s)
to on, toggle start switch, and hold until the engine starts.
If necessary, activate glow plug switch for up to 20 seconds before starting engine
if temperature is below 50° F (10° C).
If indicator lights remain lit after engine start-up, stop engine immediately and
determine cause.
Allow engine to warm up before applying any load.
6. After engine has warmed, proceed with operation.

3.14 DUAL FUEL SYSTEM (IF EQUIPPED)

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.
3.14.1 Changing from Gasoline to Liquid Propane Gas (LPG)
1. Start the engine from the platform control station.
54
NOTICE
NOTICE
NOTICE
CAUTION
31221544 RT3394, RT4394