JLG M4069 Operator Manual - Manual (Page 27)

SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION AND INSPECTION
3121638 – JLG Lift – 2-5
Preparing the Machine for Operation
Emergency Ground Control Station
1. Turn key-switch to ground control select.
2. Pull emergency stop switch to the On position.
3. Check the function of the protective scissor cage.
Platform Control Box
1. Ensure the control box is connected at the platform.
2. Complete pre-operational checks:
a. Check all functions
b. Machine should not be drivable with outriggers
extended.
c. Check all limit switches
d. Check the emergency-STOP button
e. Check the automatic self levelling
IF THE MACHINE DOES NOT OPERATE PROPERLY, TURN OFF THE MACHINE
IMMEDIATELY! REPORT THE PROBLEM TO THE PROPER MAINTENANCE PER-
SONNEL. DO NOT OPERATE THE MACHINE UNTIL IT IS DECLARED SAFE FOR
OPERATION.
Function Check
Perform the Function Check as follows:
1. From the ground emergency control panel with no
load in the platform:
a. Check for proper lifting and lowering of the plat-
form.
b. Check manual descent.
c. Ensure that all machine functions are disabled
when the Emergency Stop Button is activated.
NOTE: Be sure the platform extension is retracted before lower-
ing.
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 function con-
trol switches are in place.
c. Check the high drive cut out switch by raising the
platform beyond the preset high drive speed cut-
out height (stowed) and ensure the high drive
speed cuts out.
d. Ensure that all machine functions are disabled
when the Emergency Stop Button is pushed in.