JLG T500J Operator Manual - Manual (Page 49)

SECTION 4 - MACHINE CONTROLS AND INDICATORS
3121197 – JLG Lift – 4-5
13. Platform/Ground Select Switch
A three position, key operated switch supplies power to the
platform control console when positioned to PLATFORM.
With the switch key in the GROUND position, power is shut
off to platform and only ground controls are operable.
NOTE: With PLATFORM/GROUND SELECT switch in the center position,
power is shut off to controls at both operating stations.
14. Hourmeter
Registers the amount of time the machine has been in use.
On electric machines, all functions when motion is com-
manded are recorded. On engine powered machines, by
connecting into the oil pressure circuit of the engine, only
engine run hours are recorded.
Platform Station
See Figure 4-2., Platform Control Console - Standard Machine and Fig-
ure 4-3., Platform Control Console w/Drive & Set Option
TO AVOID SERIOUS INJURY, DO NOT OPERATE MACHINE IF ANY CONTROL LEVERS OR
TOGGLE SWITCHES CONTROLLING PLATFORM MOVEMENT DO NOT RETURN TO THE
OFF OR NEUTRAL POSITION WHEN RELEASED.
1. Power/Emergency Stop
A two-position red mushroom shaped switch supplies
power to PLATFORM Controls when pulled out (on). The
switch must be twisted clockwise to pull it out.
When pushed in (off ), power is shut off to the platform con-
trols.
Within about 2 seconds of pulling the switch out, the
machine will perform a diagnostic check of the various elec-
trical circuits, and if everything is functioning correctly, the
platform alarm will beep once. During this time the lights on
the indicator panel will also blink once as a bulb check.