JLG 740AJ Operator Manual - Manual (Page 34)

SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
2-14 – JLG Lift – 3121295
5. Drive forward and reverse; check for proper operation.
6. Steer left and right; check for proper operation.
7. Check the high-engine cutout for the tower boom
assembly as follows:
a. Place machine on level surface with booms
retracted and lowered.
b. From the platform control, position DRIVE SPEED/
TORQUE SELECT switch to FAST (Forward Posi-
tion).
c. Using extreme caution, partially position the DRIVE
control to FORWARD just enough to obtain high
engine but not enough to cause the machine to
move.
d. Raise the TOWER BASE BOOM until the engine
speed shifts from high speed to mid speed. The
bottom of the upright should NOT be above the
hood level of the machine.
8. Check the high-engine cutout for the main boom assem-
bly as follows:
a. Place machine on level surface with booms
retracted and lowered.
b. From the platform control, position DRIVE SPEED/
TORQUE SELECT switch to FAST (Forward Posi-
tion).
c. Raise the main boom above horizontal.
d. Using extreme caution, partially position the DRIVE
control to FORWARD just enough to cause the
machine to move. The drive speed should be in
slow or creep mode.
9. Swing turntable to LEFT and RIGHT a minimum of 45
degrees. Check for smooth motion.
NOTE: Ensure the turntable lock is disengaged. To disengage
lock, pull snap pin from lock pin, lift lock pin up to unlock
turntable. Return snap pin to lock pin to hold lock pin in
the disengaged position. Reverse procedure to engage
turntable lock.