JLG 660SJ Operator Manual - Manual (Page 40)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3-6 – JLG Lift – 3121297
6. Lift Control
Provides raising and lowering of the
boom.
7. 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 prevent the controls from
being actuated. The key is removable in the
platform position on CE specification
machines. The key must be available to ground personnel
in the event of an emergency.
8. Platform/Ground Select Switch
The three position, key operated switch
supplies power to the platform control
console when positioned to Platform. With
the switch key turned to the Ground posi-
tion only ground controls are operable.