SECTION 3 - MACHINE CONTROLS, INDICATORS AND OPERATION
3-6
– JLG Lift –
3121272
Key Selector Switch
- (Item 2 - Figure 3-3.)
The key selector switch on the
Ground Control Station functions to
direct electrical power to the desired
control station. With the switch
turned to the
ground position (1)
,
power is supplied to the controls at
the ground control station. When the
switch is turned to the
platform
position (2)
, power is supplied to the
controls at the platform control sta-
tion. The switch should be set to the
OFF position (3)
when
parking the machine overnight.
Platform Lift/Lower Switch
- (Item 1 - Figure 3-3.)
A three position, momentary contact lift control switch provides
raising and lowering of the platform from the Ground Control
Station.
When operating platform from the ground controls -
Toggle the lift/lower switch to up position and hold to raise plat-
form, or down position and hold to lower an elevated platform.
Release to center position to stop all movement.
MDI-Indicator
- (Item 4 - Figure 3-3.)
The MDI indicator or Multifunction Digital Indicator displays a
Battery Discharge Indicator (BDI), an LCD display which shows
the current hour-meter reading or Diagnostic Trouble Code(s)
(DTC) when a functional problem occurs with the machine, and
a system distress LED.
When a problem occurs (DTC Code displayed):
A
wrench Icon
(item 1)
will display on the
Diagnostic Trouble
Code LCD display
(item 2)
.
•
A three to five digit DTC code will display on the
Diagnostic
Trouble Code LCD display
(item 2)
, below the wrench
icon.
•
The system distress
LED indicator (RED)
(item 3)
lights up
solid on the MDI when a DTC Code is displayed on the LCD
display.
NOTE:
When more than one DTC exists, each DTC will be dis-
played on the LCD for 3 seconds before changing to the
next DTC. Once the last active DTC is displayed, the display
will recycle indefinitely until the DTC’s are corrected.
For DTC’s and descriptions, refer to Section 5.9.
Also located on the MDI are
Battery Discharge Indicators
(BDI)
(items 4 thru 7)
. (4) GREEN LEDs indicate the level of
charge (voltage) remaining in the batteries.
NOTE:
When the battery voltage is low and will need a charge
soon, the
LED (item 4)
in the 0-25% range "red area" will
flash.
Under normal operating conditions the BDI’s and hour-meter
will be displayed. When a DTC exists (other than 00x DTC’s) the
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