JLG 120-SXJ ANSI Operator Manual - Manual (Page 71)

SECTION 5 - OPTIONAL EQUIPMENT
3121104 – JLG Lift – 5-1
SECTION 5. OPTIONAL EQUIPMENT
5.1 DUAL FUEL SYSTEM (GAS ENGINE
ONLY)
Description
The dual fuel system enables the standard gasoline
engine to run on either gasoline or LP gas. The system
includes pressurized cylinders mounted on the frame, and
the valves and switches needed to switch the fuel supply
from gasoline to LP gas or from LP gas to gasoline.
A two position, FUEL toggle switch at the ground control
station supplies electrical power to open the gasoline gas
shut-off solenoid and close the LP gas shut off solenoid
when positioned to the GASOLINE position. This switch
supplies electrical power to open the LP gas shut-off sole-
noid and close the gasoline shut-off solenoid when posi-
tioned to the LP position.
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 FOL-
LOWING INSTRUCTIONS MUST BE FOLLOWED.
Changing From Gasoline to LP Gas
1. Start engine from Ground Control Station.
2. Open hand valve on LP gas supply tank by turning
counterclockwise.
BE SURE GASOLINE IS EXHAUSTED BEFORE SWITCHING TO LP
GAS. SEE STEP (3) BELOW.
3. While engine is operating, place DUAL FUEL switch
at Ground Control to center OFF position. Allow
engine to operate without load, until engine begins
to stumble from lack of gasoline. As engine begins
to stumble, place the switch to LP position, allowing
LP gas to flow to the fuel regulator.
Changing From LP Gas to Gasoline
1. With engine operating on LP under a no-load condi-
tion, position DUAL FUEL switch at Ground Control
Station to GASOLINE position.
2. If engine stumbles because of lack of gasoline,
place the switch to LP position until engine regains
smoothness, then return switch to GASOLINE posi-
tion. Repeat as necessary until engine runs
smoothly on gasoline.
3. Close hand valve on LP gas supply tank by turning
clockwise.
5.2 MOTION ALARM
A 12-volt alarm horn, mounted on the turntable, provides
an audible warning when the machine is in the travel
(DRIVE) mode. It will function in FORWARD or REVERSE
and for boom functions to warn jobsite personnel the
machine is traveling.
5.3 ELECTRIC GENERATOR
An electric generator mounted on the machine functions
to supply electrical power to the platform. This device will
provide enough power to run assorted power tools.
5.4 STROBE LIGHT
An amber or red rotating beacon may be installed on the
hood or platform. The light will come on when the ignition
switch is in the on position.
5.5 CYLINDER BELLOWS
A one piece accordion shaped rubber bellows may be
attached to the rod end of the cylinder barrel and to the
cylinder rod as close to the rod attach bushing as possi-
ble. The bellows affords protection to the cylinder rod in
either the extended or retracted position. The bellows are
installed on the lift cylinder, slave cylinder, master cylinder
and steer cylinder.