JLG 1250AJP Service Manual - Manual (Page 320)

SECTION 4 - BOOM & PLATFORM
4-80 – JLG Lift – 3121171
4.26 MAIN BOOM TELESCOPE CYLINDER
Removal
1. Place the machine on a firm, level surface with the
axles fully extended or the turntable centered
between the rear wheels. The tower boom must also
be fully lowered and retracted.
2. Connect the JLG Control System Analyzer to the
connector at the ground control box.
3. Start the engine.
4. Position the Platform/Ground select switch to the
Ground position.
5. If the Boom Control System allows tower telescope,
skip to step 18. If not, continue with step 6.
6. Plug the analyzer into the connector inside the
Ground control box.
7. Pull out the Emergency Stop switch and start the
engine.
8. The analyzer screen should read:
9. Use the arrow button to reach ACCESS LEVEL 2.
Press the ENTER key.
10. Enter the Access Code, 33271 to get into Access
Level 1 mode.
NOTE: The service mode will only be displayed on the ana-
lyzer when in access level 1 in the ground mode and
be hidden while in access level 2.
THE SERVICE MODE MENU WILL BE SELECTABLE AT THE TOP
LEVEL OF THE ANALYZER MENU STRUCTURE. “SERVICE MODE”
WILL BE DISPLAYED ON THE TOP LINE OF THE ANALYZER WITH
THE CURRENT SUB-MENU SELECTION ON THE BOTTOM LINE.
THE SUB-MENUS WILL SCROLL WITH THE LEFT AND RIGHT
ARROW KEYS.