JLG X550AJ Operator Manual - Manual (Page 50)

SECTION 4 - MACHINE OPERATION
4-6 – JLG Lift – 3128791
4.5 TRACKS - DRIVING, STEERING AND TRACK
WIDTH ADJUST
KEEP EVERYONE A DISTANCE OF AT LEAST 3 FT. (1M) FROM THE
MACHINE WHEN OPERATING THE TRACKS.
NOTE: The base and boom/jib must be aligned and retracted
before this function will operate, see Section 4.4,
BASE AND BOOM/JIB ALIGNMENT.
Track width adjust
DO NOT WIDEN OR NARROW THE TRACKS WIDTH WHEN PARKED
WITH THE TRACKS ON THE GROUND. THE MACHINE MUST BE
TRAVELLING OR RAISED ON ITS OUTRIGGERS WHEN OPERATING
THIS FUNCTION.
Press and hold button 3 for widening or button 9 for narrowing
the track.
Travelling (Drive and Steer)
USE EXTREME CAUTION WHEN APPROACHING A CREST OF ANY
TERRAIN OBSTACLE. CHECK FOR CURBS, LARGE STONES, OR
OTHER TERRAIN OBSTACLES INCLUDING OVERHEAD OBSTACLES
AS THE MACHINE WILL MAKE UNCONTROLLED PIVOTING
MOTIONS WHEN THE CENTER OF GRAVITY (CENTER OF TRACK
FRAME) SHIFTS OVER AN EDGE. SLOW DOWN TO MINIMIZE
ACCELERATION DURING PIVOTING MOVEMENT.
USE EXTREME CAUTION WHEN DRIVING IN REVERSE.
• To drive straight forward or reverse, move the controllers
for both tracks at the same time, direction and position.
• Always fully widen the track prior to driving, if possible,
for easier steering and increased stability.
• Always travel in the slow speed setting unless the travel
path is firm, level and uniform.
3
9