JLG 1250AJP Troubleshooting Manual page 301

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
personalities to 100%.
Basket Rotate
Basket Level
Jib U/D (if configured)
Start up the machine and exercise each above plat-
form 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
Section 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.
10. Hit ENTER again. "Cal. Complete" message should
appear
11. Engine should again return to idle.
12. Hit ESC should return to "Basket U Crkpt" screen.
13. Hit RIGHT ARROWto get to the "Basket D Crkpt"
screen. Hit ENTER.
14. "Calibrate?" prompt should appear. Hit ENTER
again.
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15. You will hear engine go to 1800 rpm.
Using DOWN ARROW, decrease the value until you see
the basket down movement.
Hit ENTER again. "Cal. Complete" message should
appear
Engine should again return to idle.
Hit ESC to exit.
Cycle power to the machine.
1250AJP
SECTION 5 - CALIBRATIONS
5-301