JLG 1230ES, Руководство по обслуживанию и ремонту

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SECTION 8 - DIAGNOSTIC TROUBLE CODES
8-6 – JLG Lift – 3121222
006
LIFT UP PREVENTED -
MAX HEIGHT ZONE A
The vehicle has reached the
maximum height and further lift
up motion is not possible. Appli-
cable 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.
• 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.
007
DRIVING AT CUTBACK -
POTHOLE STILL
ENGAGED
While stowed, drive speed is
reduced since the control sys-
tem 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.
• Check PHP switches wiring from the ground board and for proper opera-
tion. 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 out-
put (24V when deployed) is to J1-18.
008
FUNCTIONS LOCKED
OUT - SYSTEM POW-
ERED DOWN
After 2 hours without activity,
the control system enters a low-
power state to preserve battery
charge.
• Normal operation should resume after a power cycle.
• Check batteries charge, condition, etc.
009
DRIVE PREVENTED - ELE-
VATED ABOVE DRIVE
CUTOUT HEIGHT
The platform is elevated above
the calibrated cutout height.
• Check that the elevation angle sensor is securely mounted.
• Check the ANALYZER -> MACHINE SETUP -> MARKET configuration.
• If MARKET is set to Japan, ensure ANALYZER -> MACHINE SETUP -> DRIVE
CUTOUT parameter is set as desired.
2-1 Power-Up
DTC FAULT MESSAGE DESCRIPTION CHECK
211
POWER CYCLE
This help message is issued at
each power cycle. Displays on
the analyzer only.
Normal operation. No check necessary.
212
KEYSWITCH FAULTY
Both platform and ground
modes are selected simultane-
ously. Defaults to ground mode.
• 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. Voltage
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.
2-2 Platform Controls
DTC FAULT MESSAGE DESCRIPTION CHECK
221
FUNCTION PROBLEM -
HORN PERMANENTLY
SELECTED
The horn switch was closed dur-
ing power-up in platform mode.
• 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.
0-0 Help Comments
DTC FAULT MESSAGE DESCRIPTION CHECK