JLG 80HX_HX+6 Operator Manual - Manual (Page 57)

SECTION 3 - USER RESPONSIBILITIES AND MACHINE CONTROL
3-22 – JLG Lift – 3120890
17. Glo-Plug (If Equipped).
This push-button switch when depressed supplies
power to the diesel engine glow plugs for cold
weather start. See diesel engine operator manual
for instructions.
18. Auxiliary Power.
The AUXILIARY POWER control switch energizes
the electrically operated hydraulic pump, when
actuated. The switch must be held ON for duration
of auxiliary pump use.
The auxiliary pump functions to provide sufficient oil
flow to operate the basic machine system should
the main pump or engine fail. The auxiliary pump
will operator boom lift, telescope and swing.
It should be noted that the functions will operate at
a slower than normal rate because of lower hydrau-
lic flow.
WHEN OPERATING ON AUXILIARY POWER, DO NOT OPERATE
MORE THAN ONE FUNCTION AT THE SAME TIME. SIMULTA-
NEOUS OPERATION CAN OVERLOAD THE AUXILIARY PUMP
MOTOR.
NOTE: The main function of the auxiliary power is to lower
the platform in the event of primary power failure.
Determine the reason for primary power failure and
have the problem corrected by a qualified service
technician.
NOTE: Auxiliary power is primarily intended for platform low-
ering in the event of primary power failure. However,
auxiliary power may be used for platform positioning
when operating in close quarters in the following
sequence:
a. Position PLATFORM/GROUND switch to PLAT-
FORM.
b. Position IGNITION/EMERGENCY STOP switch
to ON.
c. Depress and hold footswitch.
d. Operate appropriate control switch or lever for
desired function and hold.
e. Position AUXILIARY POWER switch to ON and
hold.
f. Release AUXILIARY POWER switch, selected
control switch or lever, and footswitch.
g. Position IGNITION/EMERGENCY STOP switch
to OFF.
19. Lights Switch (If equipped).
The LIGHTS switch allows the operator to turn the
installed light options (except beacon light) on or
off.
20. Axles Set Indicator (If equipped).
The red Axles Set or red Axles Not Set indicator illu-
minates until the axles are properly extended and
locked. The green Axles Set indicator lamp illumi-
nates when the axles are extended and locked.
21. 2 Wheel Drive/4 Wheel Drive.
The two position 2 WHL DRIVE/4 WHL DRIVE con-
trol switch allows the operator to select high speed
(2 WHEEL DRIVE) or low speed (4 WHEEL DRIVE).
22. Beacon Switch (If equipped).
The BEACON switch allows the operator to turn the
beacon light on or off.
23. Capacity Indicator (If equipped).
The CAPACITY INDICATOR GAUGE is on the left
side of the platform console. The indicator scale is
visible through a lens and indicates the maximum
platform load allowable at any given boom angle
and extension based on the color stripe visible at
the point where the fly boom enters the mid boom.
Steer/Axle Selector Valve
A two-position selector valve, located on the frame
adjacent to the right front wheel, regulates oil flow
for the steer and axle circuit. The valve handle must
be positioned to AXLE for axle extension and to
STEER for normal operation.