JLG 80HX_HX+6 ANSI Operator Manual - Manual (Page 75)

SECTION 3 - USER RESPONSIBILITIES AND MACHINE CONTROL
3120270 – JLG Lift – 3-37
TO AVOID PERSONNEL INJURY OR MACHINE DAMAGE, USE
SLOW FUNCTION SPEED CONTROL WHEN POSITIONING THE
PLATFORM IN CLOSE QUARTERS.
12. Pump Volume.
The two-position PUMP VOLUME control switch
allows the operator to select high pump flow, pro-
viding additional speed to all functions when posi-
tioned to HIGH. When used in conjunction with high
H I G H E N G I N E a n d W H E E L M O T O R S P E E D
switches, it gives the machine a faster drive speed
range.
13. Creep.
The CREEP control switch allows the operator to
select a lower speed for DRIVE, LIFT, SWING and
TELESCOPE, when positioned to ON.
14. Drive.
The DRIVE controller provides driving either forward
or backward when positioned to FORWARD or
REVERSE. The controller is ramped to allow infi-
nitely variable driving speed between fast and slow.
15. Platform Level.
The PLATFORM LEVEL control switch allows the
operator to compensate for any difference in the
automatic self-leveling system by positioning the
switch to UP or DOWN.
16. Platform Rotate (If Equipped).
The PLATFORM ROTATE control switch allows
operator to rotate the basket to the left or right when
positioned to the desired direction.
17. Extend-A-Reach (If Equipped).
The EXTEND-A-REACH control switch allows oper-
ator to raise or lower the extend-a-reach, as
required.
18. Choke (If Equipped).
A push-button switch supplies power to the choke
solenoid for cold weather starting.
19. 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.
20. 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.