Service Manual Manual

SECTION 6 - JLG CONTROL SYSTEM
6-94 – JLG Lift – 3121171
859 85 9 LOAD PIN/TOWER LIFT CYLINDER ANGLE DISAGREE-
MENT
There is a disagreement
between the Load Pin and
the Tower Lift cylinder
Angle.
-1250
8510 85 10 LOAD PIN - FORCE VALUES NOT CHANGING The Load Pin is not chang-
ing.
-1250
8511 85 11 LOAD PIN - FORCE TOO LOW OVER TOWER ANGLE
CHANGE
Load pin force did not
change enough for the
tower angle movement.
-1250
8512 85 12 LOAD PIN - FORCE TOO LOW OVER MAIN ANGLE
CHANGE
Load pin force did not
change enough for the
main angle movement.
-1250
8513 85 13 LOAD PIN - FORCE TOO LOW OVER MAIN LENGTH TRAN-
SITION
Load Pin force did not
change enough for main
length movement.
-1250
860 86 0 <<< STEERING / AXLE >>>
861 86 1 RESTRICTED TO TRANSPORT - OSCILLATING AXLE
PRESSURE SWITCH DISAGREEMENT
The Oscillating Axle Pres-
sure Switch indicates pres-
sure while not driving or
does not indicate pressure
while driving and restricted
to transport.
- Electrically released Oscil-
lated Axles equipped vehi-
cles only.
862 86 2 AXLE EXTEND VALVE - SHORT TO BATTERY OR OPEN
CIRCUIT
There is a Short to Battery
or an Open Circuit to the
Axle Extend Valve.
863 86 3 AXLE EXTEND VALVE - SHORT TO GROUND There is a Short to Ground
to the Axle Extend Valve.
864 86 4 AXLE RETRACT VALVE - SHORT TO BATTERY OR OPEN
CIRCUIT
There is a Short to Battery
or an Open Circuit to the
Axle Retract Valve.
865 86 5 AXLE RETRACT VALVE - SHORT TO GROUND There is a Short to Ground
to the Axle Retract Valve.
866 86 6 RIGHT FRONT STEER RIGHT VALVE - SHORT TO BAT-
TERY OR OPEN CIRCUIT
There is a Short to Battery
or an Open Circuit to the
Right Front Steer Right
Valve.
867 86 7 RIGHT FRONT STEER RIGHT VALVE - SHORT TO
GROUND
There is a Short to Ground
to the Right Front Steer
Right Valve.
868 86 8 RIGHT FRONT STEER LEFT VALVE - SHORT TO BATTERY
OR OPEN CIRCUIT
There is a Short to Battery
or an Open Circuit to the
Right Front Steer Left
Valve.
869 86 9 RIGHT FRONT STEER LEFT VALVE - SHORT TO GROUND There is a Short to Ground
to the Right Front Steer Left
Valve.
Table 6-6. Diagnostic Trouble Code Chart
DTC
Flash
Code
Sequence
Fault Message Fault Description Check