JLG M600 Operator Manual - Manual (Page 45)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3121217 – JLG Lift – 3-13
3. System Distress Light
The system distress light indicates an abnormal condi-
tion for machine control system.
The three likely causes of a system fault are:
a. The seven second enable time has been allowed to
lapse or a function was selected before pushing
down the footswitch.
b. The maximum power limit has been reached and
the machine is not moving. This condition is the
same as stalling the engine by asking it to provide
more power than it was designed to do.
c. There is some other fault in one of the circuits. Refer
to the service manual.
4. Posi-Track Indicator
This indicator lights when posi-traction is operating.
5. Footswitch/Enable Indicator
To operate any function, the footswitch must be
depressed and the function selected within seven sec-
onds. The enable indicator shows that the controls are
enabled. If a function is not selected within seven sec-
onds, or if a seven second lapse between ending one
function and beginning the next function, the enable
light will go out and the footswitch must be released and
depressed again to enable the controls.
Releasing the footswitch removes power from all con-
trols and applies the drive brakes.
TO AVOID SERIOUS INJURY, DO NOT REMOVE, MODIFY OR DISABLE
THE FOOTSWITCH BY BLOCKING OR ANY OTHER MEANS.
FOOTSWITCH MUST BE ADJUSTED IF FUNCTIONS ACTIVATE WHEN
SWITCH ONLY OPERATES WITHIN LAST 1/4" OF TRAVEL, TOP OR BOT-
TOM.
6. Low Battery Light
This light indicates when battery voltage is below 45
volts and flashes below 40 volts. The machine will shut
down below 33 volts.
7. Creep Speed Indicator
When the Function Speed Control is turned to the creep
position, the indicator acts as a reminder that all func-
tions are set to the slowest speed.