JLG 3969electric ANSI Operator Manual - Manual (Page 24)

SECTION 3 - USER RESPONSIBILITIES AND MACHINE CONTROL
3-2 – JLG Sizzor– 3120767
of the machine. See foreword for definitions of the above
placards.
Capacities
Raising platform above horizontal with or without any load
in platform, is based on the following criteria:
1. Machine is positioned on a smooth, firm and level
surface.
2. Load is within manufacturers rated design capacity.
3. All machine systems are functioning properly.
Stability
This machine as originally manufactured by JLG when
operated within its rated capacity on a smooth, firm and
level supporting surface provides a stable aerial platform
for all positions.
3.4 CONTROLS AND INDICATORS
Machines are equipped with control panels that use sym-
bols and words to indicate control functions. On some
machines, the control panels may use symbols only. Refer
to Table 3-2 for these symbols and their corresponding
functions.
Ground Control Station
ONLY OPERATE FROM THE GROUND CONTROL STATION WITH
PERSONNEL IN THE PLATFORM IN AN EMERGENCY.
FOR PERFORMING AS MANY PRE-OPERATIONAL CHECKS AND
INSPECTIONS FROM GROUND CONTROLS AS POSSIBLE.
NOTE: When machine is shut down for overnight parking or
battery charging, the Emergency Stop switch must
be positioned to OFF to prevent draining the batter-
ies.
1. ENABLE SWITCH - The enable switch must be
depressed and release before activating the lift func-
tion. A built-in timer shuts off power to these func-
tions if they are not activated within 3 seconds after
the enable switch is released. In addition, this timer
will shut off power to the lift function 3 seconds after
it is deactivated, making it necessary to depress and
release the enable switch before activating lift again.
NOTE: Holding enable button “IN” while operating lift will
cause function to lift very slow.
2. PLATFORM/GROUND SELECT SWITCH - A three
position, key operated switch supplies power to plat-
form control console when positioned to platform.
With the switch key held in the ground position,
power is shut off to platform and only ground con-
trols are operable. When released from ground posi-
tion the switch spring returns to the (off) position.
NOTE: With Platform/Ground Select in center position,
power is shut off to controls at both operating sta-
tions.
3. LIFT SWITCH - A three position, momentary contact
lift control switch provides raising and lowering of
the platform when positioned to up or down.
4. HOURMETER - The hourmeter indicates the number
of hours the machine has been operated.
5. BATTERY INDICATOR AND HOURMETER (If
Equipped) - - Provides a visual indication of the con-
dition of the batteries’ charge. The hourmeter to indi-
cate the number of hours the machine has been
operated.
Platform Control Station
1. ENABLE SWITCH - The enable switch must be
depressed and released before activating the drive
or lift functions. A built-in timer shuts off power to
these functions if they are not activated within 3 sec-
onds after the enable switch is released. In addition,
this timer will shut off power to the drive and lift func-
tions 3 seconds after they are deactivated, making it
necessary to depress and release the enable switch
before activating drive or lift again.
2. EMERGENCY STOP - A two-position red mushroom
shaped switch furnishes power to Platform Controls
when pulled out (on). When pushed in (off), power is
shut down to the platform functions.
3. TILT ALARM WARNING HORN - The tilt alarm warn-
ing horn is activated by the tilt alarm switch when the
chassis is on a slope (over 5 degrees).
4. TILT ALARM AND WARNING LIGHT - A red warning
light on the control console that lights when the
chassis is on a slope (over 5 degrees).
IF OPTIONAL TILT ALARM HORN AND WARNING LIGHT IS ACTI-
VATED WHEN PLATFORM IS RAISED, LOWER PLATFORM COM-
PLETELY, THEN REPOSITION MACHINE SO THAT IT IS LEVEL
BEFORE RAISING PLATFORM.
NOTE: The drive and steer controller automatically return to
the center position when released.