JLG 800A Operation And Safety Manual page 49

NOTE: When main boom is positioned above horizontal and any
of the following switches, DRIVE SPEED/TORQUE
SELECT or FUNCTION SPEED, are positioned to HIGH,
high function speeds are automatically set to creep and
the machine continues to operate at a lower speed.
DO NOT OPERATE MACHINE IF DRIVE SPEED /TORQUE SELECT OR
FUNCTION SPEED SWITCHES OPERATE WHEN MAIN BOOM IS ABOVE
HORIZONTAL.
6. Function Speed
Controls the speed of Boom and Swing Functions.
Rotate CCW for slower speed and CW for faster speed.
To adjust to creep, turn knob fully CCW until it clicks.
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SECTION 3 - MACHINE CONTROLS AND INDICATORS
7. Drive Speed/Torque Select
Drive Speed/Torque Select is a three position switch The
forward position gives maximum drive speed by shifting
the drive motors to minimum the displacement and giv-
ing high engine when drive controller is moved. The
back position gives maximum torque for rough terrain
and climbing grades by shifting the wheel motors to
maximum displacement and giving high engine speed
when the drive controller is moved. The center position
allows the machine to be driven as quietly as possible
by leaving the engine at mid speed and the drive motors
in minimum displacement or fastest speed.
8. Platform Rotate
The Swing control switch provides 360 degrees continu-
ous turntable rotation when positioned to LEFT or RIGHT.
9. Platform Leveling Override
The PLATFORM LEVEL control switch allows the operator
to compensate for any difference in the automatic self lev-
eling system by positioning the ground control switch to
UP or DOWN.
– JLG Lift – 3-9