JLG 400CRT ANSI Service Manual - Manual (Page 36)

SECTION 2 - PROCEDURES
2-22 – JLG Lift – 3121111
2-3 FUNCTION PROBLEM - LIFT PERMANENTLY SELECTED
Lift switch (up or down) in the ground control box closed at start up. Release switch to clear fault
FUNCTION PROBLEM - START PERMANENTLY SELECTED
Start switch in the ground control box closed at start up. Release switch to clear fault
FUNCTION PROBLEM - GLOW PLUG PERMANENTLY SELECTED
Glow plug switch in the ground control box closed at start up. Release switch to clear fault
NO DATA FROM TILT SENSOR - NOT CONNECTED OR FAULTY
No signal from the tilt switch. Check wiring and plug connections at the level sensor and at the ground control board.
2-5 DRIVE & LIFT UP PREVENTED
Oscillating axle not set
4-4 BATTERY VOLTAGE TOO LOW
Battery voltage below 8.0V. Check battery and alternator.
BATTERY VOLTAGE TOO HIGH
Battery voltage above 16V. Check battery and alternator.
5-5 ENGINE SHUTDOWN – OVERSPEED
The engine speed exceeded 4500 RPM for more than 2 seconds. Check throttle actuator for debris or interference, which pre-
vents free movement of actuator. Recycle power to clear the fault and restart.
ENGINE SHUTDOWN - OIL PRES / COOLANT TEMP
The engine oil pressure was too low or the engine coolant temperature was too high for more than 10 seconds. Check engine fluid
levels. Recycle power to clear fault and restart.
Table 2-3. Help Messages and Flash Codes