JLG 510AJ Service Manual - Manual (Page 361)

SECTION 6 - JLG CONTROL SYSTEM
3121181 – JLG Lift – 6-79
4/5 Flash code 4/5 indicates problems with the S-D CAN based PVG
valves currently used on the 1250AJP only.
7
MAIN LIFT PVG COMMUNICATIONS CAN communications lost with the Main Lift PVG valve.
tower lift pvg communications CAN communications lost with the Tower Lift PVG valve.
tOWER TELESCOPE PVG COMUNICA-
TIONS CAN communications lost with the Tower Telescope PVG valve.
MAIN LIFT PVG internal fault Main boom lift pvg valve has an internal fault.
tower lift pvg internal fault Tower boom lift pvg valve has an internal fault.
tOWER TELESCOPE PVG internal fault Tower boom telescope pvg valve has an internal fault.
MAIN LIFT PVG VALVE HIGH VOLTAGE Main boom lift pvg valve has detected high excitation voltage.
TOWER LIFT PVG VALVE HIGH VOLTAGE Tower boom lift pvg valve has detected high excitation voltage.
TOWER TELESCOPE PVG VALVE HIGH
VOLTAGE Tower boom telescope pvg valve has detected high excitation volt-
age.
MAIN LIFT PVG VALVE LOW VOLTAGE Main boom lift pvg valve has detected low excitation voltage.
TOWER LIFT PVG VALVE LOW VOLTAGE Tower boom lift pvg valve has detected low excitation voltage.
TOWER TELESCOPE PVG VALVE LOW
VOLTAGE Tower boom telescope pvg valve has detected low excitation volt-
age.
MAIN LIFT PVG VALVE STUCK NEUTRAL Main boom lift pvg valve detected its' spool is stuck in the neutral
position.
TOWER LIFT PVG VALVE STUCK NEU-
TRAL Tower boom lift pvg valve detected its' spool is stuck in the neutral
position.
TOWER TELESCOPE PVG VALVE STUCK
NEUTRAL Tower boom telescope pvg valve detected its' spool is stuck in the
neutral position.
MAIN LIFT PVG VALVE STUCK
EXTENDED Main boom lift pvg valve detected its' spool is stuck in the extended
position.
TOWER LIFT PVG VALVE STUCK
EXTENDED Tower boom lift pvg valve detected its' spool is stuck in the extended
position.
TOWER TELESCOPE PVG VALVE STUCK
EXTENDED Tower boom telescope pvg valve detected its' spool is stuck in the
extended position.
MAIN LIFT PVG VALVE STUCK
RETRACTED Main boom lift pvg valve detected its' spool is stuck in the retracted
position.
TOWER LIFT PVG VALVE STUCK
RETRACTED Tower boom lift pvg valve detected its' spool is stuck in the retracted
position.
TOWER TELESCOPE PVG VALVE STUCK
RETRACTED Tower boom telescope pvg valve detected its' spool is stuck in the
retracted position.
MAIN LIFT PVG VALVE OBSTRUCTED Main boom lift pvg valve detected its' spool could not achieve com-
mand.
TOWER LIFT PVG VALVE OBSTRUCTED Tower boom lift pvg valve detected its' spool could not achieve com-
mand.
TOWER TELESCOPE PVG VALVE
OBSTRUCTED Tower boom telescope pvg valve detected its' spool could not
achieve command.
Table 6-9. Help Fault Codes, Displayed Faults, and Descriptions
Fault Flash
Code
Analyzer Display Description Priority