JLG 40RTS Operator Manual - Manual (Page 22)

SECTION 2 - PREPARATION AND INSPECTION
2-10 – JLG Sizzor – 3120825
2.7 DUAL FUEL SYSTEM
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 the engine from the ground control station.
2. Open the hand valve on the LP Gas supply tank by
turning counterclockwise.
BE SURE ALL GASOLINE IS EXHAUSTED BEFORE SWITCHING
TO LP GAS.
3. While the engine is operating, place the three posi-
tion LPG/GAS SELECT switch at the ground control
station to the center OFF position. Allow the engine
to operate, without load, until the engine begins to
stumble from lack of gasoline.
4. As the engine begins to stumble place the switch to
the LPG position, allowing the LP fuel to be sent to
the fuel regulator.
Changing from LP Gas to Gasoline
1. With engine operating on LP under a no-load condi-
tion, position the LPG/GAS SELECT switch at
ground control to the GAS SELECT position.
2. If engine stumbles because of lack of gasoline,
place the switch to the LPG position until engine
regains smoothness, then return the switch to the
GAS SELECT position. Repeat as necessary until
engine runs smoothly on gasoline.
3. Close the hand valve on the LP gas supply tank by
turning clockwise.
2.8 TORQUE REQUIREMENTS
Figure 2-5., Torque Chart consists of standard torque val-
ues based on bolt diameter and grade, also specifying dry
and wet torque values in accordance with recommended
shop practices. This chart is provided as an aid to the
operator in the event he/she notices a condition that
requires prompt attention during the walk-around inspec-
tion or during operation until the proper service personnel
can be notified. Section 1 of the Service and Maintenance
Manual provides specific torque values and periodic
maintenance procedures with a listing of individual com-
ponents. Utilizing this Torque Chart in conjunction with the
preventive maintenance section in Section 2 of the Service
and Maintenance Manual, will enhance safety, reliability
and performance of the machine.