JLG 1230ES Operator Manual - Manual (Page 77)

SECTION 6 - GENERAL SPECIFICATIONS AND OPERATOR MAINTENANCE
3121221 – JLG Lift – 6-13
005 DRIVE & LIFT UP PREVENTED - TILTED &
ELEVATED Driving is not possible since the platform is
elevated and the chassis is not level. • Check that the machine is tilted. If so, lower the platform and reposition
the machine to a level surface.
• Fully stow the platform.
• The tilt sensor is part of the ground control box. Check that the ground
control box is secured to the machine.
• Check that the pothole protection switches are securely mounted.
• Check that the elevation angle sensor is securely mounted.
Refer problem to a qualified JLG mechanic.
006 LIFT UP PREVENTED - MAX HEIGHT
ZONE A The vehicle has reached the maximum
height and further lift up motion is not pos-
sible. Applicable to 2630ES or 3246ES. • Check that the zone is set appropriately for the platform load.
• Check that the platform height is at the rated maximum height specifica-
tion (20’ for 2630 or 26’ for the 3246).
• Check that the elevation angle sensor is securely mounted.
• If there are any elevation sensor faults (DTC 251, 252, 2511, or 2512),
troubleshoot those first.
Refer problem to a qualified JLG mechanic.
007 DRIVING AT CUTBACK - POTHOLE STILL
ENGAGED While stowed, drive speed is reduced since
the control system detected that the pot-
hole protection mechanism failed to retract. • Check for obstructions around the pot-hole protection mechanisms.
• Check that the PHP switches are securely mounted.
Refer problem to a qualified JLG mechanic.
008 FUNCTIONS LOCKED OUT - SYSTEM
POWERED DOWN After 2 hours without activity, the control
system enters a low-power state to preserve
battery charge. • Normal operation should resume after power is cycled off then back on.
• Check batteries charge, condition, etc.
Refer problem to a qualified JLG mechanic.
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DTC FAULT MESSAGE DESCRIPTION CHECK