Oshkosh Corporation JLG 450AJ, Service And Maintenance Manual

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SECTION 6 - JLG CONTROL SYSTEM
6-50 – JLG Lift – 3121659
PLATFORM LEVEL UP VALVE –
SHORT TO GROUND 3382 The UGM detects a short to ground at this output The UGM shall prohibit Plat-
form Level Up;
(340AJ, 400S, 450AJ) The
UGM shall limit Platform
Level Down to Creep speed Power Cycled
PLATFORM LEVEL UP VALVE –
OPEN CIRCUIT 3383 The UGM detects an open circuit at this output The UGM shall suspend Plat-
form Level Up and Down;
(340AJ, 400S, 450AJ) The
UGM shall limit Platform
Level Up and Down to Creep
speed after controls initial-
ized;
(18RS, 24RS) Platform Level
Up and Down permitted after
controls are initialized The UGM no longer detects open circuit;
(340AJ, 400S, 450AJ) Full speed Platform
Level Up and Down permitted after controls
are initialized
PLATFORM LEVEL UP VALVE –
SHORT TO BATTERY 3384 The UGM detects a short to battery at this output The UGM shall prohibit Plat-
form Level Up, Level Down,
and Flow Control Power Cycled
PLATFORM LEVEL DOWN VALVE
– SHORT TO GROUND 3388 The UGM detects a short to ground at this output The UGM shall prohibit Plat-
form Level Up and Down Power Cycled
PLATFORM LEVEL DOWN VALVE
– OPEN CIRCUIT 3389 The UGM detects an open circuit at this output The UGM shall suspend Plat-
form Level Up and Down;
The UGM shall prohibit Plat-
form Level Up;
(340AJ, 400S, 450AJ) The
UGM shall limit Platform
Level Down to Creep speed
after controls initialized;
(18RS, 24RS) Platform Level
Down permitted after con-
trols are initialized The UGM no longer detects open circuit;
(340AJ, 400S, 450AJ) Full speed Platform
Level Up and Platform Level Down permit-
ted after controls are initialized
PLATFORM LEVEL DOWN VALVE
– SHORT TO BATTERY 3390 The UGM detects a short to battery at this output The UGM shall prohibit Plat-
form Level Up, Level Down,
and Flow Control Power Cycled
PLATFORM ROTATE LEFT VALVE
– SHORT TO GROUND 3394 The UGM detects a short to ground at this output The UGM shall prohibit Plat-
form Rotate Left and Right Power Cycled
PLATFORM ROTATE LEFT VALVE
– OPEN CIRCUIT 3395 The UGM detects an open circuit at this output The UGM shall suspend Plat-
form Rotate Left and Right;
(340AJ, 400S, 450AJ) The
UGM shall limit Platform
Rotate Left and Right to
Creep speed after controls ini-
tialized;
(18RS, 24RS) Platform Rotate
Left and Right permitted
after controls are initialized The UGM no longer detects open circuit;
(340AJ, 400S, 450AJ) Full speed Platform
Rotate Left and Right permitted after con-
trols are initialized
PLATFORM ROTATE LEFT VALVE
– SHORT TO BATTERY 3396 The UGM detects a short to battery at this output The UGM shall prohibit Plat-
form Rotate Left, Right and
Flow Control Valve outputs 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