JLG 600A_AJ Operator Manual - Manual (Page 27)

SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
3121204 – JLG Lift – 2-5
Function Check
Perform the Function Check as follows:
1. From the ground control panel with no load in the plat-
form:
a. Check that all guards protecting the switches or
locks are in place;
b. Operate all functions and check all limiting and cut-
out switches;
c. Check auxiliary power (or manual descent);
d. Ensure that all machine functions are disabled
when the Emergency Stop Button is activated.
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.
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 the tilt sensor alarm to ensure proper opera-
tion.
2.3 LIMIT SWITCH FUNCTIONAL CHECK
TO AVOID MACHINE UPSET DO NOT USE MACHINE IF TOWER BOOM
SWITCHING IS OUT OF SEQUENCE.
IF THE TOWER BOOM LIFTS ‘DOWN’ WITH THE TOWER BOOM TELE-
SCOPED ‘OUT’, SHUT DOWN MACHINE AND CONTACT A CERTIFIED JLG
TECHNICIAN.
IF THE TOWER BOOM ‘TELESCOPES’ WITH THE TOWER BOOM LESS
THAN FULLY ELEVATED ‘UP’, SHUT DOWN MACHINE AND CONTACT
QUALIFIED JLG TECHNICIAN.
TO AVOID UPSET IF TOWER BOOM SWITCHING MALFUNCTIONS:
— LOWER THE PLATFORM TO GROUND VIA MAIN BOOM LIFT AND
TELESCOPE FUNCTIONS.
— HAVE CONDITION CORRECTED BY A CERTIFIED JLG SERVICE TECH-
NICIAN BEFORE CONTINUING USE OF MACHINE.