Power-Up; Platform Controls; Lift Up Prevented - Max Height Zone A; Driving At Cutback - Pothole Still Engaged - JLG 1930ES Service Maintenance Manual

0-0 Help Comments
DTC FAULT MESSAGE
006 LIFT UP PREVENTED - MAX
HEIGHT ZONE A
007 DRIVING AT CUTBACK - POT-
HOLE STILL ENGAGED
008 FUNCTIONS LOCKED OUT -
SYSTEM POWERED DOWN
009 DRIVE PREVENTED - ELE-
VATED ABOVE DRIVE CUT-
OUT HEIGHT

2-1 Power-Up

DTC FAULT MESSAGE
211

POWER CYCLE

212

KEYSWITCH FAULTY

2-2 Platform Controls

DTC FAULT MESSAGE
221 FUNCTION PROBLEM -
HORN PERMANENTLY
SELECTED
3121166
DESCRIPTION
The vehicle has reached the maximum
height and further lift up motion is not pos-
sible. Applicable to 2630ES or 3246ES.
While stowed, drive speed is reduced
since the control system detected that the
pot-hole protection mechanism failed to
retract.
After 2 hours without activity, the control
system enters a low-power state to pre-
serve battery charge.
The platform is elevated above the cali-
brated cutout height.
DESCRIPTION
This help message is issued at each
power cycle. Displays on the analyzer
only.
Both platform and ground modes are
selected simultaneously. Defaults to
ground mode.
DESCRIPTION
The horn switch was closed during
power-up in platform mode.
– JLG Lift –
SECTION 6 - DIAGNOSTIC TROUBLE CODES
CHECK
• Check that the zone is set appropriately for the platform load.
• Check that the platform height is at the rated maximum height
specification (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.
• Check that ANALYZER -> MACHINE SETUP -> MODEL setting is
correct.
• Check that ANALYZER -> MACHINE SETUP -> MARKET setting
is correct.
• Check ANALYZER -> DIAGNOSTICS -> ELEV SENSOR ->
ZEROED is about 1.53V for the 3246 or about 1.22V for the 2630
when at full height. If not, repair or replace the elevation angle
sensor.
• Check for obstructions around the pot-hole protection mecha-
nisms.
• Check that the PHP switches are securely mounted.
• Check PHP switches wiring from the ground board and for proper
operation. The left PHP input (24V) is from J1-9 and its output
(24V when deployed) is to J1-10. The right PHP input (24V) is
from J1-17 and its output (24V when deployed) is to J1-18.
• Normal operation should resume after a power cycle.
• Check batteries charge, condition, etc.
• Check that the elevation angle sensor is securely mounted.
• Check the ANALYZER -> MACHINE SETUP -> MARKET configu-
ration.
• If MARKET is set to Japan, ensure ANALYZER -> MACHINE
SETUP -> DRIVE CUTOUT parameter is set as desired.
CHECK
Normal operation. No check necessary.
• Check key switch function.
• Backprobe J2-3 with the keyswitch in the ground position. Voltage
should be under 6V. Otherwise, keyswitch or wiring faulty.
• Backprobe J2-4 with the keyswitch in the platform position. Volt-
age should be under 6V. Otherwise, keyswitch or wiring faulty.
• Check key switch wiring to ground board J2-3 and J2-4 and to
emergency stop switch.
• Replace ground board.
CHECK
• Check if the horn switch is damaged, obstructed or jammed.
• Disconnect the horn switch ribbon cable on the platform board. If
DTC still present, replace the platform board. If DTC 221 is no
longer present, replace the horn switch or platform board.
6-5