JLG 450A_AJ Series II Operator Manual - Manual (Page 29)

SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
3121289 – JLG Lift – 2-5
11. Function Check – Once the “Walk-Around” Inspection is
complete, perform a functional check of all systems in an
area free of overhead and ground level obstructions. Refer to
Section 4 for more specific instructions.
IF THE MACHINE DOES NOT OPERATE PROPERLY, TURN OFF THE MACHINE IMMEDIATELY!
REPORT THE PROBLEM TO THE PROPER MAINTENANCE PERSONNEL. DO NOT OPERATE
THE MACHINE UNTIL IT IS DECLARED SAFE FOR OPERATION.
Function Check
Perform the Function Check as follows:
1. From the ground control panel with no load in the platform:
a. Check that all guards protecting the switches or locks
are in place;
b. Operate all functions and check boom limit switches;
drive speed should switch to creep mode if lower boom
is elevated or main boom is above horizontal.
c. Check auxiliary power (or manual descent);
d. Ensure that all machine functions are disabled when
the Emergency Stop Button is activated.
e. Ensure all boom functions stop when the function
enable switch is released.
2. From the platform control console:
a. Ensure that the control console is firmly secured in the
proper location;
b. Check that all guards protecting the switches or locks
are in place;
c. Operate all functions and check all limiting and cut-out
switches;
d. Ensure that all machine functions are disabled when
the Emergency Stop Button is pushed in.
e. Ensure that all machine functions stop when the foot-
switch is released.
3. With the platform in the transport (stowed) position:
a. Drive the machine on a grade, not to exceed the rated
gradeability, and stop to ensure the brakes hold;
b. Check that the tilt indicator is illuminated to ensure
proper operation.