JLG 15MSP Series, Operation And Safety Manual

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SECTION 5 - GENERAL SPECIFICATIONS AND OPERATOR MAINTENANCE
5-20 – JLG Lift – 3121230
5.5 DRIVE MOTOR BRUSH WEAR - WARNING INDICATION
The machines drive motors include brush wear sensors that
activate a warning indicating the drive motor brushes will
require replacment soon. This warning protects the drive
motors from damage due to extreme brush wear.
When the brush wear warning is activated the Ground Con-
trol Station LCD screen will indicate a fault code of 6, also the
hourmeter is set to countdown 25 hours of (DRIVE) operation
remaining.
The Platform Control LEDs will indicate this warning with 8
flashing LEDs and an intermittent beep.
NOTE:
Only the drive function when used will affect the hour
meter count down once the warning has been activated.
The machine will operate normally until the last 10 sec-
onds of the 25 hour countdown.
During the last 10 seconds of the 25 hour (DRIVE) countdown
the machine will only drive in creep/turtle drive mode and
platform lift up will be disabled. At this point cycling power
on/off will only repeat the final 10 second mode cycle.
The machine will not operate normally until the drive motor
brushes are replaced
(repositioning the brush warning sensors),
and the Ground Control Station is programmed to reset the
Brush Wear - Warning Timer per the Service and Maintenance
Manual.