JLG 800A Operation And Safety Manual page 44

SECTION 3 - MACHINE CONTROLS AND INDICATORS
6. Tower Telescope
The TOWER TELESCOPE control switch provides
extending and retracting of the tower boom when posi-
tioned to IN or OUT. This function works only when the
tower boom is fully elevated (lift up).
TO AVOID UPSET AND SERIOUS INJURY, DO NOT OPERATE MACHINE
IF TOWER LIFT AND TELESCOPE FUNCTIONS DO NOT OPERATE IN
THE ABOVE SEQUENCE.
7. Hourmeter
An hour meter, installed in the bottom portion of the
Ground Control box, registers the amount of time the
machine has been in use, with engine running. By con-
necting into the oil pressure circuit of the engine, only
engine run hours are recorded. The hour meter registers
up to 9,999.9 hours and cannot be reset.
3-4
8. Platform/Ground Select Switch
A three position, key operated switch supplies power to
the platform control console when positioned to PLAT-
FORM. With the switch key held in the GROUND posi-
tion, power is shut off to platform and only ground
controls are operable.
NOTE: With the Platform/Ground Select Switch in the center posi-
tion, power is shut off to controls at both operating sta-
tions.
9. Swing Control
The SWING control switch provides 360 degrees contin-
uous turntable rotation when positioned to RIGHT or
LEFT.
WHEN OPERATING THE BOOM ENSURE THERE ARE NO PERSONNEL
AROUND OR UNDER PLATFORM.
– JLG Lift – 3121209