JLG 450AJ Operator Manual - Manual (Page 57)

SECTION 5 - OPTIONAL EQUIPMENT
3120868 – 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 SELECT toggle switch at the plat-
form control station supplies electrical power to open the
gasoline 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 solenoid and close the gasoline shut-off solenoid when
positioned 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 FOLLOWING 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.
3. While engine is operating on GASOLINE under a no-
load condition, place FUEL SELECT switch at Plat-
form Control to LP position.
Changing From LP Gas to Gasoline
1. With engine operating on LP under a no-load condi-
tion, position FUEL SELECT switch at Platform Con-
trol Station to GASOLINE position.
2. Close hand valve on LP gas supply tank by turning
clockwise.
5.2 OSCILLATING AXLE
The oscillating front axle is attached to the frame by a
pivot pin which allows all four wheels to remain on the
ground when traveling on rough terrain. The oscillating
axle also incorporates two lockout cylinders connected
between the frame and each wheel end. The lockout cylin-
ders permit axle oscillation when the boom is centered
over the rear, and lock and hold the axle when the boom is
moved off center.
5.3 PLATFORM W/SOFT TOUCH PROXIMITY
SYSTEM BUMPER
This optional system incorporates a lower padded rail,
slightly larger than the platform. Four Proximity switches
are attached to each corner of the lower rail. The proximity
switches are set so that when the antenna comes into
contact with an object, electrical power is cut off from the
platform controls, shutting down all functions.
5.4 FOUR WHEEL DRIVE
Provides drive motors, brakes (rear only) and torque hubs
at each wheel to give extra traction. The system is avail-
able with either a fixed or oscillating front axle.
5.5 COLD WEATHER PACKAGE
Deutz Engine with Glow Plugs
The glow plugs are installed in the engine and automati-
cally come on with the ignition circuit and remain on for a
period of seven seconds.
In addition to the glow plugs, the cold weather package
also includes an electric immersion heater for the hydrau-
lic oil tank, and an electric blanket type heater for the bat-
tery. These components can be plugged in together or
singly to preheat their associated components for easier
cold weather starting.