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SECTION 6 - JLG CONTROL SYSTEM (S/N 61718 TO PRESENT)
3120895
– JLG Lift –
6-21
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 foot-
switch 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 DIAGNOSTICS/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
2/5
Flash code 2/5 indicates that a function is prevented due to a cutout.
4
BOOM PREVENTED - DRIVE
SELECTED
A boom function is selected while a drive function is selected and
drive cutout is configured to prevent simultaneous drive & boom
operation.
DRIVE PREVENTED - ABOVE
ELEVATION
Drive is selected while above elevation and drive cutout is configured
to prevent drive.
DRIVE PREVENTED - BOOM
MOVEMENT SELECTED
Drive is selected while a boom function is selected and drive cutout is
configured to prevent simultaneous drive & boom operation.
DRIVE PREVENTED - TILTED &
ABOVE ELEVATION
Drive is selected while tilted and above elevation and tilt is configured
to cutout drive.
BOOM PREVENTED – FUNCTION
CUTOUT ACTIVE
A boom function is selected while function cutout is active and con-
figured to cutout boom functions.
BOOM & DRIVE PREVENTED-
FUNCTION CUTOUT ACTIVE
Drive or a boom function is selected while function cutout is active
and configured to cutout all functions.
2/7
Flash code 2/7 indicates that the accelerator input is faulty.
NOT REQUIRED
2/8
Flash code 2/8 indicates that the hydraulic filter is being bypassed.
5
RETURN FILTER BYPASSED
Hydraulic return filter clogged
CHARGE PUMP FILTER
BYPASSED
Charge pump filter clogged
3/1
Flash code 3/1 indicates that a contactor did not close when energized.
NOT REQUIRED
Table 6-2. Help Fault Codes, Displayed Faults, and Descriptions - Prior to S/N 66995
Summary of Contents for JLG 400S
Page 1: ...Service and Maintenance Manual Models 400S 460SJ P N 3120895 December 6 2012...
Page 2: ......
Page 20: ...xvi JLG Lift 3120895 LIST OF TABLES TABLE NO TITLE PAGE NO This page left blank intentionally...
Page 52: ...SECTION 2 GENERAL 2 14 JLG Lift 3120895 NOTES...
Page 100: ...SECTION 3 CHASSIS TURNTABLE 3 48 JLG Lift 3120895 Figure 3 35 Swing Drive Installation...
Page 101: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 49 Figure 3 36 Swing Motor...
Page 105: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 53 Figure 3 38 Swing Brake S N 64802 to Present...
Page 107: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 55 Figure 3 39 Swing Torque Hub...
Page 124: ...SECTION 3 CHASSIS TURNTABLE 3 72 JLG Lift 3120895 Figure 3 44 EFI Component Location...
Page 136: ...SECTION 3 CHASSIS TURNTABLE 3 84 JLG Lift 3120895 Figure 3 49 Valve Location Chassis...
Page 137: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 85 Figure 3 50 Hyd Tank Installation...
Page 143: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 91 This page left blank intentionally...
Page 155: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 103 Figure 3 60 EMR2 Fault Codes Sheet 1 of 5...
Page 156: ...SECTION 3 CHASSIS TURNTABLE 3 104 JLG Lift 3120895 Figure 3 61 EMR2 Fault Codes Sheet 2 of 5...
Page 157: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 105 Figure 3 62 EMR2 Fault Codes Sheet 3 of 5...
Page 158: ...SECTION 3 CHASSIS TURNTABLE 3 106 JLG Lift 3120895 Figure 3 63 EMR2 Fault Codes Sheet 4 of 5...
Page 159: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 107 Figure 3 64 EMR2 Fault Codes Sheet 5 of 5...
Page 208: ...SECTION 3 CHASSIS TURNTABLE 3 156 JLG Lift 3120895...
Page 210: ...SECTION 3 CHASSIS TURNTABLE 3 158 JLG Lift 3120895...
Page 213: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 161...
Page 223: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 171 Sensor Transducer Type...
Page 227: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 175 Sensor Transducer Type...
Page 229: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 177...
Page 231: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 179...
Page 233: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 181...
Page 235: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 183...
Page 237: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 185...
Page 255: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 203...
Page 259: ...SECTION 3 CHASSIS TURNTABLE 3120895 JLG Lift 3 207...
Page 264: ...SECTION 3 CHASSIS TURNTABLE 3 212 JLG Lift 3120895 NOTES...
Page 288: ...SECTION 4 BOOM PLATFORM 4 24 JLG Lift 3120895 Figure 4 12 Rotator Counterbalance Valve...
Page 303: ...SECTION 5 HYDRAULICS 3120895 JLG Lift 5 15 Figure 5 22 Main Valve...
Page 313: ...SECTION 5 HYDRAULICS 3120895 JLG Lift 5 25 Figure 5 25 Variable Displacement Hydraulic Pump...
Page 402: ...SECTION 6 JLG CONTROL SYSTEM S N 61718 TO PRESENT 6 86 JLG Lift 3120895 NOTES...
Page 460: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 7 58 JLG Lift 3120895 NOTES...
Page 461: ......