JLG 740AJ, Руководство по обслуживанию и ремонту

Страница: 518 / 582

SECTION 6 - JLG CONTROL SYSTE M
6-58 3121160
Table 6-10. Help Fault Codes, Displayed Faults, and Descriptions - Prior to SN 0300066931
Fault Flash Code
Communicated (Displayed on
Analyzer) Fault
Description Priority
None No flash code is indicated for the following help messages. They are intended to hint at a possible problem if the vehicle is not behaving
as expected. 1
EVERYTHING OK The “normal” help message in platform mode
GROUND MODE OK The “normal” help message in ground mode
DRIVING AT CREEP - TILTED Drive speed is limited to creep because the vehicle is tilted.
FSW OPEN A drive or boom function has been selected but footswitch is open.
RUNNING AT CREEP - CREEP SWITCH
OPEN All function speeds are limited to creep because the creep switch is open.
RUNNING AT CREEP - TILTED AND ABOVE
ELEVATION All function speeds are limited to creep because the vehicle is tilted and above elevation.
RUNNING AT CUTBACK - ABOVE ELEVA-
TION Drive speed is limited to “ELEVATED MAX” because the vehicle is above elevation.
TESTS ACTIVE- RECYCLE EMS TO END The system tests have been activated; normal vehicle operation is not allowed.
1/1 Flash code 1/1 indicates a “sleep” mode.
NOT REQUIRED
2/1 Flash code 2/1 indicates problems with footswitch. 2
FSW FAULTY The two foot switch signals do not agree. EMS recycle required.
KEYSWITCH FAULTY Both platform and ground modes are selected simultaneously
2/2 Flash code 2/2 indicates problems with drive & steer selection. 3
DRIVE JOYSTICK FAULTY The drive joystick center tap is out of valid range, or the wiper is wire-off.
DRIVE LOCKED - JOYSTICK MOVED
BEFORE EMS/FSW Drive was selected before and during footswitch closure.
FSW INTERLOCK TRIPPED Footswitch was closed for seven seconds with no function selected.
STEER LOCKED - SELECTED BEFORE
EMS/FSW Steer was selected before and during footswitch closure.
STEER SWITCHES FAULTY Both steer switches are active together.
WAITING FOR FSW TO BE OPEN Footswitch was closed when platform mode was selected.
JOYSTICK FAULTS - CHECK PLATFORM
BOX WIRING More than one of the drive, lift, and swing joystick center tap or wiper voltages is out of
range. This is probably due to a short-circuit across a joystick pot.
2/3 Flash code 2/3 indicates problems with boom function selection. 3
LIFT/SWING JOYSTICK FAULTY The lift or swing joystick center tap is out of valid range, or the wiper is wire-off.
LIFT/SWING LOCKED -
JOYSTICK MOVED BEFORE EMS/FSW Platform upper lift or swing was selected before and during footswitch closure.
PUMP POT FAULTY The pump pot is open-circuit; all platform boom functions except upper lift & swing will run
at creep.
PUMP SWITCHES FAULTY - CHECK DIAG-
NOSTICS/BOOM A boom function (lower lift, telescope, basket level, basket rotate, jib) has both directions
selected together.
PUMP SWITCHES LOCKED - SELECTED
BEFORE EMS/FSW A platform boom function (lower lift, telescope, basket level, basket rotate, jib) was selected
before key switch or footswitch closure.
PUMP SWITCHED LOCKED - SELECTED
BEFORE EMS A ground boom function (lower lift, telescope, basket level, basket rotate, jib) was selected
before key switch.
SWING/LIFT JOYSTICK FAULTY The swing joystick center tap is out of valid range, or the wiper is wire-off.
2/4 Flash code 2/4 indicates that steering digital inputs are faulty.
NOT REQUIRED