Safety System Override; Hardware - JLG TOUCAN 8E Service And Maintenance Manual

SECTION 10 - DIAGNOSTIC TROUBLE CODES
DTC FAULT MESSAGE
8667 STEER SENSOR - NOT
RESPONDING
8668 STEER SENSOR - NOT CALI-
BRATED

8-7 Safety System Override

DTC FAULT MESSAGE
873 MACHINE SAFETY SYSTEM
OVERRIDE OCCURED

9-9 Hardware

DTC FAULT MESSAGE
9992 MASTER MODULE A/D FAIL-
URE
9993 SLAVE MODULE A/D FAILURE
9994 MASTER MODULE EEPROM
FAILURE
9995 SLAVE MODULE EEPROM
FAILURE
10-20
DESCRIPTION
Invalid signal from the steer sensor.
This fault appears when steering is con-
trolled but the sensor output remains
unchanged for more than 1 second.
The steering sensor has not been cali-
brated
DESCRIPTION
Machine Safety System Override (MSSO)
has been used to override a Safety
System or the Platform Operator station.
DESCRIPTION
There is an internal error in the Master
Module (right controller).
There is an internal error in the Slave Mod-
ule (left controller).
There is an internal error in the Master
Module (right controller).
There is an internal error in the Slave Mod-
ule (left controller).
– JLG Lift –
CHECK
• If the wheels do not steer while the function is con-
trolled :
- Pump not running : check the voltage applied to
the pump motor;
- Pump running : check the oil level; check the
hydraulic pressure and the voltage applied to the
pressure relief valve; check the steer and the direc-
tional valves; check that the steering wheels are not
obstructed nor jammed,
• If the wheels steer properly :
-Check the steer sensor for damage.
-Check that the steer sensor is securely mounted.
-Check the steer sensor connections voltages
(refer to Section 8).
-If the sensor power is correct but its output
improper: Replace the sensor and proceed with a
calibration (refer to § 4-3 & 9-3).
• Proceed with a sensor calibration (refer to §4-3 and
9-3).
• If the sensor can not be calibrated :
-Check the steer connection voltages (refer to Sec-
tion 8).
-If the sensor power is correct but its output
improper: Replace the sensor and proceed with a
calibrations (refer to § 9-3).
CHECK
• The record of the use of MSSO must be cleared.
• Fault should be retentive through power cycled;
• Can only be reset by the analyzer with CALIBRA-
TIONS>MSSO>MSSO RESET.
CHECK
• Cycle power to clear the fault.
• If the fault is not cleared : Replace the Master con-
troller.
• Cycle power to clear the fault.
• If the fault is not cleared : Replace the Slave control-
ler.
• Cycle power to clear the fault.
• If the fault is not cleared : Replace the Master con-
troller.
• Cycle power to clear the fault.
• If the fault is not cleared : Replace the Slave control-
ler.
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