JLG TF6-42 (9150-4003) Operator Manual - Manual (Page 86)

P8.2
Engine Start/Auxiliary Power:
Engine Start
Push “UP” on Engine Start/Auxiliary Power switch to start engine. If engine fails
to start within 20 seconds, release Engine Start/Auxiliary Power switch and
allow starting motor to cool for a few minutes before trying again. For engine
starting, the footswitch must be in the released (up) position.
Auxiliary Power
A toggle-type Engine Start/Auxiliary Power control switch energizes the
electrically operated hydraulic pump, when actuated. (Switch must be held
“DOWN” for duration of auxiliary pump use.) The auxiliary pump functions to
provide sufficient oil flow to operate the basic machine functions should the
main pump or engine fail. The auxiliary pump will operate boom lift, telescope
and rotate. It should be noted that the functions will operate at a slower than
normal rate.
Auxiliary power is primarily intended for platform lowering 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:
1. Position CONTROL STATION SELECT switch to PLATFORM.
2. Position POWER/EMERGENCY STOP switch to ON.
3. Depress and hold footswitch.
4. Position AUXILIARY POWER switch to ON and hold.
5. Operate appropriate control switch or lever for desired function and hold.
6. Release AUXILIARY POWER switch, selected control switch or lever, and
footswitch.
7. Position POWER/EMERGENCY STOP switch to OFF.
Footswitch:
This feature makes it necessary to depress the footswitch to allow operation
of the platform controls.
Function Speed:
The knob provides variable speed control of all boom functions grouped together
to the right of the knob. For smoothest operation of these functions, use two
hands: rotate the knob counterclockwise to the slowest position, select the
function switch, and while holding the switch on, rotate the knob to the desired
speed. To achieve a smooth stop, rotate the knob counterclockwise to a slow
speed prior to letting go of the function switch. Rotating the knob fully
counterclockwise until a click is heard puts all controls, including drive, main
lift, and swing into “creep” speed. This slow speed is used for fine positioning
of the platform when close to obstacles. A snail symbol is used to indicate
“creep” speed and is shown at the Function Speed knob as well as near the
proportional controllers to act as a reminder.
Horn:
A push-type HORN switch activates an audible warning device when pressed.
Lights Indicator:
Illuminated when lights are turned on.
To avoid serious injury, do not
operate machine if any control
levers or toggle switches controlling
platform movement do not return
to the off position when released.
WARNING !
To avoid serious injury, do not
remove, modify or disable the
footswitch by blocking or any other
means.
Footswitch must be depressed prior
to activating any function control,
otherwise the function will not
operate.
WARNING !
Footswitch must be adjusted so that
functions will operate when pedal is
approximately at its center of travel.
If switch operates within last 1/4”
of travel, top or bottom, it should
be adjusted.
CAUTION !
NOTE!
NOTE!
When the boom is raised
approximately 7 degrees above
horizontal, the high drive function
will automatically switch to low
drive. This also occurs when
Function Speed Control is set to
creep.
NOTE!
The main function of auxiliary
power is to lower the platform in
the event of primary power
failure.
PLATFORM CONTROLS AND INDICATORS