Platform Leveling Calibration Procedure - JLG 1200SJP Service Maintenance Manual

SECTION 6 - JLG CONTROL SYSTEM

Platform Leveling Calibration Procedure

STEP 1: SETTING THE PLATFORM VALVE MINIMUMS
1. Put machine into "Ground Mode".
2. Start machine and plug in Analyzer.
3. Go to the "Access Level 2" screen.
4. Enter "33271" to get into Access Level 1 mode.
5. Go to the "Personalities" menu and adjust the following
personalities. Refer to the Personality Ranges/Defaults
table in Section 6 - JLG Control System for proper setting
values.
Basket Level Up Min
Basket Level Up Max
Basket Level Down Max
Jib Up Min
Jib Down Min
6. Recycle EMS.
STEP 2: CALIBRATING THE PLATFORM LEVEL
SENSORS
1. Put machine into "Ground Mode".
2. Start machine and plug in Analyzer.
3. Manually level the platform with the switch on the MTB.
4. Go to the "Access Level 2" screen.
5. Enter "33271" to get into Access Level 1 mode.
6. Go to the "Calibrations" menu and hit ENTER.
7. Use RIGHT ARROW go to "Plat. Leveling" screen.
8. Hit ENTER. "Calibrate?" prompt should appear.
9. Hit ENTER again to calibrate level sensors.
10. When calibration has been successful "Cal. Complete"
should appear.
11. Cycle power to the machine.
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STEP 3: BLEEDING THE PLATFORM VALVES
1. Put machine into "Ground Mode".
2. Start machine and plug in Analyzer.
3. Go to the "Access Level 2" screen.
4. Enter "33271" to get into Access Level 1 mode.
5. Go to the "Personalities" menu.
6. Using the left arrow button, go to the "Ground Mode"
menu.
7. Hit ENTER.
8. Using the UP/DOWN arrows, adjust the following per-
sonalities to 100%.
Basket Rotate
Basket Level
Jib U/D (if configured)
Start up the machine and exercise each above platform
function (from the ground) eight (8) to ten (10) times for
5 seconds in each direction.
9. Return the personality settings back to the values as
shown in the Personality Ranges/Defaults table in Sec-
tion 6 - JLG Control System.
10. Recycle EMS.
STEP 4: CALIBRATING THE PLATFORM LEVEL UP AND
DOWN VALVE CRACKPOINTS
1. Put machine into "Ground Mode".
2. Start machine and plug in Analyzer.
3. Go to the "Access Level 2" screen.
4. Enter "33271" to get into Access Level 1 mode.
5. Go to the "Calibrations" menu and hit ENTER.
6. Go to the "Basket U Crkpt" Screen. Hit ENTER.
7. "Calibrate?" prompt should appear. Hit ENTER again.
8. You will hear engine go to 1800 rpm.
9. Using UP ARROW, increase the value until you see the
basket up movement.
– JLG Lift – 3121142