SECTION 6 - JLG CONTROL SYSTEM
6-138
3121619
33456
3
3
MAIN LIFT FLOW CONTROL VALVE - CUR-
RENT FEEDBACK READING LOST
Current feedback into controller not
detected
Check wiring and coil
33457
3
3
MAIN LIFT FLOW CONTROL VALVE - CUR-
RENT FEEDBACK READING TOO LOW
Current feedback into controller is below
threshold value
33460
3
3
TELESCOPE FLOW CONTROL VALVE - CUR-
RENT FEEDBACK READING LOST
Current feedback into controller not
detected
33461
3
3
TELESCOPE FLOW CONTROL VALVE - CUR-
RENT FEEDBACK READING TOO LOW
Current feedback into controller is below
threshold value
33462
3
3
WARM UP VALVE - SHORT TO BATTERY
Short to Battery detected
Check wiring
33463
3
3
WARM UP VALVE - OPEN CIRCUIT
Open Circuit detected
Check wiring
33464
3
3
WARM UP VALVE - SHORT TO GROUND
Short to Ground detected
Check wiring
33465
3
3
CHASSIS ENABLE VALVE - SHORT TO BAT-
TERY
Short to Battery detected
Check wiring
33466
3
3
CHASSIS ENABLE VALVE - OPEN CIRCUIT
Open Circuit detected
Check wiring
33467
3
3
CHASSIS ENABLE VALVE - SHORT TO
GROUND
Short to Ground detected
Check wiring
33487
3
3
TWO SPEED OR BRAKE VALVE - STUCK OPEN
33488
3
3
SWING FLOW CONTROL VALVE - SHORT TO
GROUND
Short to Ground detected
Check wiring
33489
3
3
SWING FLOW CONTROL VALVE - OPEN CIR-
CUIT
Open Circuit detected
Check wiring
33490
3
3
SWING FLOW CONTROL VALVE - SHORT TO
BATTERY
Short to Battery detected
Check wiring
33563
3
3
LIFT ENABLE VALVE - STUCK OPEN
Lift pilot valve is energized (during auxil-
iary or gravity sequence) and 1deg of
motion is detected prior to the enable valve
being energized
Check enable valve hardware
33564
3
3
COUNTER BALANCE VALVE - STUCK OPEN
Counterbalance valve test completed at the
end of a lift down command. If Lift Cylinder
angle sensor detects 2-deg motion, fault is
activated
Check counterbalance valve hardware
33565
3
3
LIFT ENABLE - CURRENT FEEDBACK READ-
ING LOST
Current feedback into controller not
detected
Check wiring and coil
33566
3
3
LIFT ENABLE - CURRENT FEEDBACK READ-
ING TOO LOW
Current feedback into controller is below
threshold value
Check wiring and coil
340
3
4
<<< PLATFORM OUTPUT DRIVER >>>
343
3
4
PLATFORM LEVEL UP VALVE - SHORT TO
GROUND
There is a Short to Ground to the
Platform Level Up Valve.
344
3
4
PLATFORM LEVEL UP VALVE - SHORT TO BAT-
TERY OR OPEN CIRCUIT
There is a Short to Battery or an Open Circuit
to the Platform Level Up Valve.
- Electronic leveling system equipped vehicles only.
347
3
4
PLATFORM LEVEL DOWN VALVE - SHORT TO
GROUND
There is a Short to Ground to the
Platform Level Down Valve.
348
3
4
PLATFORM LEVEL DOWN VALVE - SHORT TO
BATTERY OR OPEN CIRCUIT
There is a Short to Battery or an Open Circuit
to the Platform Level Down Valve.
- Electronic leveling system equipped vehicles only.
3427
3
4
JIB LOCK VALVE - OPEN CIRCUIT
3428
3
4
JIB LOCK VALVE - SHORT TO BATTERY
Table 6-13. Diagnostic Trouble Code Chart
DTC
Flash
Code
Sequence
Fault Message
Fault Description
Check
Summary of Contents for 1850SJ
Page 1: ...Service and Maintenance Manual Model 1850SJ 3121619 June 29 2018 Rev J AS NZS...
Page 2: ......
Page 21: ...3121619 xvii LIST OF FIGURES FIGURE NO TITLE PAGE NO Thispageleftblankintentionally...
Page 24: ...xx 3121619 LIST OF TABLES TABLE NO TITLE PAGE NO Thispageleftblankintentionally...
Page 50: ...SECTION 2 GENERAL 2 12 3121619 NOTES...
Page 55: ...SECTION 3 CHASSIS TURNTABLE 3121619 3 5 This page left blank intentionally...
Page 56: ...SECTION 3 CHASSIS TURNTABLE 3 6 3121619 Figure 3 4 Axle Hose Routing Sheet 1 of 2...
Page 57: ...SECTION 3 CHASSIS TURNTABLE 3121619 3 7 Figure 3 5 Axle Hose Routing Sheet 2 of 2...
Page 58: ...SECTION 3 CHASSIS TURNTABLE 3 8 3121619 Figure 3 6 Steering Axle Hydraulic Circuit...
Page 61: ...SECTION 3 CHASSIS TURNTABLE 3121619 3 11 Figure 3 9 Turntable Hydraulic System...
Page 92: ...SECTION 3 CHASSIS TURNTABLE 3 42 3121619 Figure 3 39 Swing Bearing Wear Tolerance...
Page 94: ...SECTION 3 CHASSIS TURNTABLE 3 44 3121619 Figure 3 41 Swing Bearing Removal Sheet 2 of 4...
Page 110: ...SECTION 3 CHASSIS TURNTABLE 3 60 3121619 Figure 3 54 Engine Electrical Circuit...
Page 169: ...SECTION 4 BOOM PLATFORM 3121619 4 7 Figure 4 1 Boom Hydraulic System...
Page 173: ...SECTION 4 BOOM PLATFORM 3121619 4 11 Figure 4 2 Boom Assembly Sheet 1 of 9...
Page 174: ...SECTION 4 BOOM PLATFORM 4 12 3121619 Figure 4 3 Boom Assembly Sheet 2 of 9...
Page 175: ...SECTION 4 BOOM PLATFORM 3121619 4 13 Figure 4 4 Boom Assembly Sheet 3 of 9...
Page 176: ...SECTION 4 BOOM PLATFORM 4 14 3121619 Figure 4 5 Boom Assembly Sheet 4 of 9...
Page 177: ...SECTION 4 BOOM PLATFORM 3121619 4 15 Figure 4 6 Boom Assembly Sheet 5 of 9...
Page 178: ...SECTION 4 BOOM PLATFORM 4 16 3121619 Figure 4 7 Boom Assembly Sheet 6 of 9...
Page 179: ...SECTION 4 BOOM PLATFORM 3121619 4 17 Figure 4 8 Boom Assembly Sheet 7 of 9...
Page 180: ...SECTION 4 BOOM PLATFORM 4 18 3121619 Figure 4 9 Boom Assembly Sheet 8 of 9...
Page 181: ...SECTION 4 BOOM PLATFORM 3121619 4 19 Figure 4 10 Boom Assembly Sheet 9 of 9...
Page 187: ...SECTION 4 BOOM PLATFORM 3121619 4 25 Figure 4 16 Boom Assembly Torque Values Sheet 1 of 4...
Page 188: ...SECTION 4 BOOM PLATFORM 4 26 3121619 Figure 4 17 Boom Assembly Torque Values Sheet 2 of 4...
Page 189: ...SECTION 4 BOOM PLATFORM 3121619 4 27 Figure 4 18 Boom Assembly Torque Values Sheet 3 of 4...
Page 190: ...SECTION 4 BOOM PLATFORM 4 28 3121619 Figure 4 19 Boom Assembly Torque Values Sheet 4 of 4...
Page 201: ...SECTION 4 BOOM PLATFORM 3121619 4 39 Figure 4 20 Hose Adjustment...
Page 202: ...SECTION 4 BOOM PLATFORM 4 40 3121619 Figure 4 21 Section 3 Boom Cables...
Page 203: ...SECTION 4 BOOM PLATFORM 3121619 4 41 Figure 4 22 Section 4 Boom Cables...
Page 204: ...SECTION 4 BOOM PLATFORM 4 42 3121619 Figure 4 23 Section 5 Boom Cables...
Page 205: ...SECTION 4 BOOM PLATFORM 3121619 4 43 Figure 4 24 Jib Hydraulics Sheet 1 of 7...
Page 234: ...SECTION 4 BOOM PLATFORM 4 72 3121619 Figure 4 44 Powertrack Shimming Instructions...
Page 239: ...SECTION 4 BOOM PLATFORM 3121619 4 77 Figure 4 49 Powertrack Hose Installation Sheet 1 of 4...
Page 240: ...SECTION 4 BOOM PLATFORM 4 78 3121619 Figure 4 50 Powertrack Hose Installation Sheet 2 of 4...
Page 241: ...SECTION 4 BOOM PLATFORM 3121619 4 79 Figure 4 51 Powertrack Hose Installation Sheet 3 of 4...
Page 242: ...SECTION 4 BOOM PLATFORM 4 80 3121619 Figure 4 52 Powertrack Hose Installation Sheet 4 of 4...
Page 252: ...SECTION 4 BOOM PLATFORM 4 90 3121619 NOTES...
Page 432: ...SECTION 5 BASIC HYDRAULIC INFORMATION HYDRAULIC SCHEMATICS 5 180 3121619 NOTES...
Page 527: ...SECTION 6 JLG CONTROL SYSTEM 3121619 6 95 Figure 6 36 LSS Installation Sheet 1 of 4...
Page 528: ...SECTION 6 JLG CONTROL SYSTEM 6 96 3121619 Figure 6 37 LSS Installation Sheet 2 of 4...
Page 529: ...SECTION 6 JLG CONTROL SYSTEM 3121619 6 97 Figure 6 38 LSS Installation Sheet 3 of 4...
Page 530: ...SECTION 6 JLG CONTROL SYSTEM 6 98 3121619 Figure 6 39 LSS Installation Sheet 4 of 4...
Page 710: ...SECTION 7 BASIC ELECTRICAL INFORMATION ELECTRICAL SCHEMATICS 7 118 3121619 NOTES...
Page 711: ......