JLG 740AJ Service Manual - Manual (Page 263)

SECTION 4 - BOOM & PLATFORM
3121160 – JLG Lift – 4-47
Calibration - Pre ADE Machines
CALIB RATION OF THE UPRIGH T 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 con-
trol station using the four-pin analyzer connector
shown below.
3. Pull out the emergency stop button at the ground
control station and start the engine from the ground
controls.
NOTE: The boom malfunction indicator light at the ground
controls will flash until the initial calibration is per-
formed.
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" .
Using the arrows on the keypad, enter the password
"33271" and press "ENTER" .
NOTE: Repeat step #4 if the correct access level is not dis-
played.
5. Calibrate the Upright Monitoring System (UMS) sen-
sors by the following procedure:
THE UPRIGHT SENSOR AND TURNTABLE SENSOR WILL BE CALI-
BRATED SIMULTANEOUSLY THROUGH THIS STEP.
a. In access level 1, scroll through the menu items
until "CALIBRATIONS" is displayed on the sec-
ond 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: