Calibration - Pre Ade Machines - JLG 740AJ Service And Maintenance Manual

SECTION 4 - BOOM & PLATFORM

Calibration - Pre ADE Machines

CALIBRATION OF THE UPRIGHT MONITORING SYSTEM REQUIRES THE
MACHINE TO BE ON A FIRM AND LEVEL SURFACE WITH SUFFICIENT OVERHEAD
CLEARANCE TO FULLY ELEVATE THE TOWER BOOM.
1. Refer to Section 6 for operating instructions and menu
structures for the hand-held analyzer, #2901443.
2. Connect the hand-held analyzer at the ground control
station using the four-pin analyzer connector shown
below.
3. Pull out the emergency stop button at the ground con-
trol station and start the engine from the ground con-
trols.
NOTE: The boom malfunction indicator light at the ground con-
trols will flash until the initial calibration is performed.
4. To calibrate the Upright Monitoring System through the
hand-held analyzer, you must be in access level 1. To
advance to access level 1, scroll to the ACCESS LEVEL
menu and press "ENTER"
keypad, enter the password "33271" and press "ENTER"
.
NOTE: Repeat step #4 if the correct access level is not displayed.
5. Calibrate the Upright Monitoring System (UMS) sensors
by the following procedure:
THE UPRIGHT SENSOR AND TURNTABLE SENSOR WILL BE CALIBRATED SIMUL-
TANEOUSLY THROUGH THIS STEP.
4-50
. Using the arrows on the
a. In access level 1, scroll through the menu items until
"CALIBRATIONS" is displayed on the second line of
the analyzer screen as shown below.
b. When "CALIBRATIONS" is displayed, press "ENTER"
to advance to the next screen. The screen will
display the following:
3121160