JLG 740AJ ANSI Operator Manual - Manual (Page 35)

SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
3121650 – JLG Lift – 2-9
2.3 FUNCTION CHECK
Perform a function check of all systems, once the walk-around
inspection is complete, in an area free of overhead and ground
level obstructions.
A MACHINE MALFUNCTION COULD CAUSE DEATH OR SERIOUS INJURY. IF ANY MAL-
FUNCTIONS OCCUR DURING THE FUNCTION TEST, DISCONTINUE OPERATION AND
CONTACT A QUALIFIED SERVICE TECHNICIAN TO CORRECT THE MALFUNCTION BEFORE
OPERATING THE MACHINE.
From the Ground Control Station with No Load in the
Platform:
1. Check that all guards protecting the function switches or
locks are in place. Ensure that all function controls and
switches return to the "off" or neutral position when
released.
DO NOT OPERATE IF GUARDS OR LOCKS ARE MISSING OR THE SWITCHES DO NOT
RETURN TO THE "OFF" OR NEUTRAL POSITION
2. Raise the tower base boom to approximately 40 degrees,
then lower the tower boom back to the below horizontal
position. While raising and lowering the tower boom assem-
bly, observe the position of the upright. Ensure that the
upright remains vertical relative to the chassis. Refer to Fig-
ure 2-5. and Figure 2-6.
3. Check that all machine functions are disabled when the
Emergency Stop Button is pushed in.
4. Check for proper operation of the auxiliary power and man-
ual descent system (if equipped). Operate each function
control to ensure proper operation.