Oshkosh Corporation JLG 450AJ, Service And Maintenance Manual

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SECTION 6 - JLG CONTROL SYSTEM
6-44 – JLG Lift – 3121659
FUNCTION PROBLEM - LIFT UP
PERMANENTLY SELECTED 23107 Machine is in Ground Mode;
The Lift Up switch input = High at Startup
The UGM shall prohibit Lift Up
and Down The Lift Up switch input = Low;
Lift Up and Down permitted after controls
are initialized
FUNCTION PROBLEM - LIFT
DOWN PERMANENTLY
SELECTED 23108 Machine is in Ground Mode;
The Lift Down switch input = High at Startup
The UGM shall prohibit Lift Up
and Down The Lift Down switch input = Low;
Lift Up and Down permitted after controls
are initialized
FUNCTION PROBLEM - TELE-
SCOPE IN PERMANENTLY
SELECTED 23109 Machine is in Ground Mode;
The Telescope In switch input = High at Startup
The UGM shall prohibit Tele-
scope In and Out The Telescope In switch input = Low;
Telescope In and Out permitted after con-
trols are initialized
FUNCTION PROBLEM - TELE-
SCOPE OUT PERMANENTLY
SELECTED 23110 Machine is in Ground Mode;
The Telescope Out switch input = High at Startup
The UGM shall prohibit Tele-
scope In and Out The Telescope Out switch input = Low;
Telescope In and Out permitted after con-
trols are initialized
FUNCTION PROBLEM - PLAT-
FORM LEVEL UP PERMANENTLY
SELECTED 23111 Machine is in Ground Mode;
The Platform Level Up switch input = High at Startup
The UGM shall prohibit Plat-
form Level Up and Down The Platform Level Up switch input = Low;
Platform Level Up and Down permitted
after controls are initialized
FUNCTION PROBLEM - PLAT-
FORM LEVEL DOWN PERMA-
NENTLY SELECTED 23112 Machine is in Ground Mode;
The Platform Level Down switch input = High at Startup
The UGM shall prohibit Plat-
form Level Up and Down The Platform Level Down switch input =
Low;
Platform Level Up and Down permitted
after controls are initialized
FUNCTION PROBLEM - PLAT-
FORM ROTATE LEFT PERMA-
NENTLY SELECTED 23113 Machine is in Ground Mode;
The Platform Rotate Left switch input = High at Startup
The UGM shall prohibit Plat-
form Rotate Left and Right The Platform Rotate Left switch input =
Low;
Platform Rotate Left and Right permitted
after controls are initialized
FUNCTION PROBLEM - PLAT-
FORM ROTATE RIGHT PERMA-
NENTLY SELECTED 23114 Machine is in Ground Mode;
The Platform Rotate Right switch input = High at Startup
The UGM shall prohibit Plat-
form Rotate Left and Right The Platform Rotate Right switch input =
Low;
Platform Rotate Left and Right permitted
after controls are initialized
TELESCOPE RETRACT
SWITCHES - DISAGREEMENT 23154 The UGM detects the following conditions:
Telescope Retracted Switch #1 and Telescope Retracted
Switch #2 readings disagree for longer than 5 seconds;
Telescope In or Telescope Out output value ≥ Creep output
value
The UGM shall assume the
Boom is Not Retracted Power Cycled
SWING SWITCHES - DISAGREE-
MENT 23155 The UGM detects the following conditions:
Swing Switch #1 and Swing Switch #2 readings disagree for
longer than 5 seconds;
Swing Left or Swing Right value ≥ Creep output value
The UGM shall assume the
Boom is Swung Power Cycled
FUNCTION PROBLEM – MSSO
PERMANENTLY SELECTED 23163 The MSSO switch input = Low at Startup No response required for this
DTC Power Cycled
BOOM ANGLE SENSOR - SINGLE
POINT CALIBRATION PER-
FORMED 23170 Single point Boom Angle calibration is successfully completed No response required for this
DTC
Fault shall be retentive through Power
Cycled;
Can be reset if CALIBRATIONS > BOOM
ANGLE is successfully completed
CAPACITY LENGTH SWITCHES -
DISAGREEMENT 23173 Dual Capacity is configured;
The UGM detects the following conditions:
Capacity Length Switch #1 and Capacity Length Switch #2
readings disagree for longer than 5 seconds;
Telescope In or Telescope Out output value ≥ Creep output
value
The UGM shall assume Dual
Capacity = 600# Power Cycled
Table 6-5. Diagnostic Trouble Code Chart
Help Message DTC
Fault Condition/Trigger
(For configurable items, fault applies only if
configured. All listed conditions to be met unless
stated otherwise)
Required Control
Response or State
Assignment
Conditions Required for Movement
and/or to Clear Fault