JLG 800A Operation And Safety Manual page 57

800 series articulating boom lifts
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SECTION 3 - MACHINE CONTROLS AND INDICATORS
5. Drive/Steer
Proportional single axis joystick is provided to control drive.
Push forward to drive forward, pull back to drive in reverse.
Steering is accomplished via a thumb-activated rocker switch
on the end of the handle. Push on the left side of the switch to
steer left, on right side to steer right.
NOTE:
Both drive and steer functions work in the opposite direction
when the main boom is positioned over front of the chassis.
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 auto-
matically set to creep and the machine continues to operate at a
lower speed.
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.
3-12
7. Drive Speed/Torque Select
Drive Speed/Torque Select is a three position switch The for-
ward position gives maximum drive speed by shifting the
drive motors to minimum the displacement and giving 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 displace-
ment and giving high engine speed when the drive control-
ler 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
This switch allows the operator to rotate the basket to the
left or right.
– JLG Lift –
3121209

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