JLG 740AJ ANSI Operator Manual - Manual (Page 51)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3121650 – JLG Lift – 3-5
6. Hourmeter
Registers the amount of time the
machine has been in use, with engine
running. By connecting into the oil
pressure circuit of the engine, only engine run hours are
recorded. The hourmeter registers up to 9,999.9 hours and
cannot be reset.
NOTE: When the Platform/Ground Select Switch is in the
center position, power is shut off to the controls at
both operating stations. Remove the key to pre-
vent the controls from being actuated. The key is
removable in the platform position on CE specifi-
cation machines. The key must be available to
ground personnel in the event of an emergency.
7. Platform/Ground Select Switch
The three position, key operated switch sup-
plies power to the platform control console
when positioned to Platform. With the switch
key turned to the Ground position only
ground controls are operable.