JLG 24RS Service Manual - Manual (Page 212)

SECTION 6 - JLG CONTROL SYSTEM
6-36 – JLG Lift – 3121287
FUNCTION SWITCHES LOCKED
- SELECTED BEFORE START
SWITCH 236 The Ground Module detects one of the following conditions:
The machine is in Ground Mode, the engine is stopped, and any
boom control is selected before the ground engine start switch is
selected.
The machine is in Platform Mode, the engine is stopped, any
drive/steer or boom control is already engaged and the foot-
switch is not engaged before the platform engine start switch is
selected
Engine start is disabled Release all function switches.
Start the engine before any
other applicable function
switches are selected.
START SWITCH LOCKED -
SELECTED BEFORE KEY-
SWITCH 237 The engine start switch for the selected station is engaged during the
Ground Module startup sequence. Engine start is disabled Release the engine start
switch. Position the Ground/
Platform Select switch to the
opposite operating station to
verify the engine can be
started. View switch state on
Analyzer under DIAGNOSTICS--
>OPER CONTROLS-->START
SWITCH.
FUNCTION PROBLEM -
GROUND ENABLE PERMA-
NENTLY SELECTED 2310 The machine is in Ground mode and the Enable switch is in the
selected position. Disable Start and Boom func-
tions, including Emergency
Descent. Return the switch to the off
position. View switch state on
Analyzer under DIAGNOSTICS--
>OPER CONTROLS-->AUX
DESCENT SW. Replace the
switch if defective.
FUNCTION PROBLEM - SWING
LEFT PERMANENTLY
SELECTED 2372 The machine is in Ground mode and the Swing switch is selected and
trying to activate the Swing Left function at startup. Swing Left and Right prohib-
ited. With the machine controls not
enabled, return the Swing
switch to neutral. Actuate
switch while monitoring state
changes under appropriate
menu in DIAGNOSTICS-->OPER
CONTROLS on Analyzer.
Replace the switch if defective.
FUNCTION PROBLEM - SWING
RIGHT PERMANENTLY
SELECTED 2373 The machine is in Ground mode and the Swing switch is selected and
trying to activate the Swing Right function at startup. Swing Left and Right prohib-
ited. With the machine controls not
enabled, return the Swing
switch to neutral. Actuate
switch while monitoring state
changes under appropriate
menu in DIAGNOSTICS-->OPER
CONTROLS on Analyzer.
Replace the switch if defective.
BOOM TRANSPORT SWITCH
DISAGREEMENT 23104 The Ground Module detects that Boom Elevation switch #1 and
switch #2 are not in agreement for more than 4 seconds while lifting. The Ground Module assumes
an "Above Elevation" condition
and does not allow Axle Oscilla-
tion. Verify that the two boom angle
switches are adjusted to actu-
ate simultaneously. Cycle
Power.
Table 6-5. Fault Code Troubleshooting Information
Help Message DTC Condition Producing DTC
Control System Response or
Machine Condition
Corrective Action/
Operational Requirement
for Function Movement
and/or to Clear Fault