JLG 400S 460SJ Service and Maintenance Manual 2010 – PDF Repair Guide

Description

JLG 400S 460SJ Service and Maintenance Manual – P/N 3120895

This is the complete JLG 400S and 460SJ Service and Maintenance Manual, publication number 3120895, dated December 28, 2010. It is the full workshop reference for these two aerial work platform models, covering every major system from the chassis and turntable through to the boom, platform, hydraulics and the JLG Control System (S/N 61718 to present). The manual also contains detailed engine service and diagnostic sections for the Ford LRG-425, Deutz F3M1011F/F3M2011F, Isuzu 4LE1, Caterpillar 3024/C2.2, GM 3.0L and Perkins 404C-22 engines.

Whether you are performing a routine 250-hour service, diagnosing a CAN bus fault on a Deutz EMR 2 engine, rebuilding a drive hub, or adjusting the swing bearing preload, this manual walks you through the procedure with the correct torque values, pressure settings, wear limits and step-by-step instructions.

File Details

• Manual type: Service and Maintenance Manual
• Brand: JLG
• Models covered: 400S, 460SJ
• Document number: 3120895
• Date: December 28, 2010
• Language: English
• File format: PDF
• Page count: 460 pages

Chapters Covered

• Section A – Introduction, Maintenance Safety Precautions
  • General safety
  • Hydraulic system safety
  • Maintenance precautions
• Section 1 – Specifications
  • Capacities and engine specifications (Ford, Deutz, Isuzu, Caterpillar, GM, Perkins)
  • Tires and performance data
  • Torque requirements and critical stability weights
  • Major component weights
  • Function speeds and pressure settings
  • Cylinder specifications
  • Lubrication and hydraulic oil
  • Operator maintenance and lubrication
  • Propane regulator oil draining and fuel filter replacement
• Section 2 – General
  • Machine preparation, inspection and maintenance
  • Service and guidelines
  • Lubrication and information
  • Cylinder drift test
  • Pins and composite bearing repair
  • Welding on JLG equipment
• Section 3 – Chassis & Turntable
  • Tires and wheels
  • Drive hub disassembly and assembly (2WD, 4WD rear, 4WD steer)
  • Torque hub (4WD machines after S/N 0300076633)
  • Re-aligning torque hub input coupling
  • Drive brake and drive motor
  • Lockout valve adjustment and toe-in adjustment
  • 2WD hub removal and installation
  • Oscillating axle bleeding and lockout test
  • Swing bearing inspection, wear tolerance and replacement
  • Swing brake (prior to S/N 64802 and S/N 64802 to present)
  • Swing drive torque hub
  • Semi-track testing, removal and adjustment
  • Generator service
  • Ford EFI engine diagnostics
  • Deutz engine throttle checks and adjustments
  • Tilt alarm switch
  • Hydraulic welder (225-4) repair and troubleshooting
  • Deutz EMR 2 (S/N 77682 to present)
  • GM engine maintenance and dual fuel system
  • GM engine fuel system repair and LPG diagnosis
  • Perkins engine maintenance and radiator fill
  • DGC diagnostic support and trouble code definitions
• Section 4 – Boom & Platform
  • Boom removal, disassembly, inspection, assembly and installation
  • Articulating jib
  • Limit switch adjustments
  • Drive card setup procedures
  • Helac rotary actuator
• Section 5 – Hydraulics
  • Cylinder theory of operation
  • Cylinder repair (with and without counterbalance valves)
  • Valve theory of operation
  • Pressure setting procedures
  • Hydraulic motor repair (H Series Char-Lynn)
  • Hydraulic pump neutral adjustment
  • Non-feedback proportional electrical control (NFPE)
  • Hydraulic component start-up procedures
  Complete PDF Bookmark Tree

  Complete Bookmarks

  The complete bookmarks in the “JLG 400S 460SJ Service and Maintenance Manual 2010 – PDF Repair Guide” are as follows:

  +Section A. INTRODUCTION – MAINTENANCE SAFETY PRECAUTIONSp. 3

  A Generalp. 3

  B Hydraulic System Safetyp. 3

  C Maintenancep. 3

  +Section 1. SPECIFICATIONSp. 21

  1.1 Capacitiesp. 21

  1.2 Engine Specificationsp. 21

  1.3 Tiresp. 22

  1.4 Specifications and Performance Datap. 22

  1.5 Torque Requirementsp. 23

  1.6 Critical Stability Weightsp. 23

  1.7 Major Component Weightsp. 23

  1.8 Function Speedsp. 24

  1.9 Pressure Settings – PSI (Bar)p. 24

  1.10 Cylinder Specificationsp. 24

  +1.11 Lubricationp. 24

  Hydraulic Oilp. 24

  1.12 Welder, Hydraulic (option)p. 25

  1.13 Serial Number Locationp. 25

  +1.14 Operator Maintenance and Lubricationp. 26

  Draining Oil Build Up From The Propane Regulatorp. 29

  Propane Fuel Filter Replacementp. 30

  Propane Fuel System Pressure Reliefp. 31

  +Section 2. GENERALp. 39

  +2.1 Machine Preparation, Inspection, and Maintenancep. 39

  Generalp. 39

  Preparation, Inspection, and Maintenancep. 39

  Pre-Start Inspectionp. 39

  Pre-Delivery Inspection and Frequent Inspectionp. 39

  Annual Machine Inspectionp. 39

  Preventative Maintenancep. 39

  +2.2 Service and Guidelinesp. 40

  Generalp. 40

  Safety and Workmanshipp. 40

  Cleanlinessp. 40

  Components Removal and Installationp. 40

  Component Disassembly and Reassemblyp. 41

  Pressure-Fit Partsp. 41

  Bearingsp. 41

  Gasketsp. 41

  Bolt Usage and Torque Applicationp. 41

  Hydraulic Lines and Electrical Wiringp. 41

  Hydraulic Systemp. 41

  Lubricationp. 41

  Batteryp. 41

  Lubrication and Servicingp. 41

  +2.3 Lubrication and Informationp. 41

  Hydraulic Systemp. 41

  Hydraulic Oilp. 42

  Changing Hydraulic Oilp. 42

  Lubrication Specificationsp. 42

  +2.4 Cylinder Drift Testp. 42

  Platform Driftp. 42

  Cylinder Driftp. 42

  2.5 Pins and Composite Bearing Repair Guidelinesp. 43

  +2.6 Welding on JLG Equipmentp. 43

  Do the Following When Welding on JLG Equipmentp. 43

  Do NOT Do the Following When Welding on JLG Equipmentp. 43

  +Section 3. CHASSIS & TURNTABLEp. 53

  +3.1 Tires & Wheelsp. 53

  Tire Inflationp. 53

  Tire Damagep. 53

  Tire Replacementp. 53

  Wheel Replacementp. 53

  Wheel Installationp. 53

  +3.2 Drive Hub Part No. 2780243 (2wd Rear) Part No. 2780244 (4wd Rear)p. 54

  Disassemblyp. 54

  Disassembly of Cover Unit (8)p. 55

  Disassembly of First Stage Planetary Assemblyp. 55

  Disassembly of the Second Stage Planet Gears (1)p. 55

  Assembly of First Stage Planetary Assembly (7)p. 55

  Assembly Of End Cover Unit (8)p. 55

  Final Assemblyp. 55

  +3.3 Drive Hub Part No. 2780246 (4wd steer axle Prior to S/N 0300076633)p. 57

  Disassemblyp. 57

  Disassembly of Cover Unit (8)p. 57

  Disassembly of First Stage Planetary Assemblyp. 57

  Disassembly of the Second Stage Planet Gears (1)p. 57

  Assembly of First Stage Planetary Assembly (7)p. 58

  Assembly of End Cover Unit (8)p. 58

  Final Assemblyp. 58

  +3.4 Torque Hub – 4WD (Machines built after S/N 0300076633)p. 60

  Roll and Leak Testingp. 60

  Tightening and Torquing Boltsp. 60

  Oil Informationp. 60

  Main Disassembly for ”B” Drivesp. 60

  Hub-Spindle Disassemblyp. 61

  Cover Disassemblyp. 61

  Carrier Disassemblyp. 61

  Assembly of the Carrierp. 62

  Cover Sub-Assemblyp. 64

  Hub-Spindle Sub-Assemblyp. 65

  Main Assemblyp. 67

  Tool Listp. 72

  +3.5 Re-Aligning Torque Hub Input Couplingp. 73

  Equipment Requiredp. 73

  Procedurep. 73

  +3.6 Drive Brakep. 74

  Pre-Installation Checksp. 74

  Installationp. 75

  Maintenancep. 75

  Disassemblyp. 75

  Examinationp. 75

  Assemblyp. 75

  +3.7 Drive Motorp. 77

  Descriptionp. 77

  Shaft Seal Replacementp. 77

  Loop Flushing Valvep. 78

  Troubleshootingp. 79

  Disassemblyp. 80

  Inspectionp. 84

  Assemblyp. 86

  Initial Start-up Proceduresp. 91

  3.8 Adjustment Procedure For Lockout Valvep. 92

  3.9 Toe-In Adjustmentp. 92

  +3.10 2WD Hubp. 93

  Removal & Disassemblyp. 93

  Cleaning & Inspectionp. 93

  Assembly & Installationp. 94

  3.11 Oscillating Axle Bleeding Procedurep. 95

  3.12 Oscillating Axle Lockout Testp. 95

  +3.13 Swing Bearingp. 96

  Turntable Bearing Mounting Bolt Condition Checkp. 96

  Wear Tolerancep. 97

  Replacement of Swing Bearingp. 98

  Swing Bearing Torque Valuep. 99

  Swing Drive Installationp. 99

  +3.14 Swing Brake (Prior to S/N 64802)p. 102

  Installationp. 102

  Brake Disassemblyp. 102

  Assembly Informationp. 102

  +3.15 Swing Brake S/N 64802 to Presentp. 104

  Disassemblyp. 104

  Assemblyp. 104

  +3.16 Swing Drive Torque Hubp. 106

  Disassembly Procedurep. 106

  Hub Shaft Sub-Assembly Procedurep. 110

  Carrier Sub-Assembly Procedurep. 112

  +3.17 Semi-Trackp. 113

  Testing the Trackp. 113

  Removing the Trackp. 114

  Assuming Normal Wearp. 114

  Adjustmentp. 114

  +3.18 Generatorp. 118

  Every 250 hoursp. 118

  Every 500 hoursp. 118

  Overload Protectionp. 118

  Inspecting Brushes, Replacing Brushes, and Cleaning Slip Ringsp. 118

  +3.19 Ford EFI Enginep. 120

  Performing Diagnosticsp. 120

  Visual/Physical Engine Inspection Checkp. 120

  EFI Diagnostics (Prior to S/N 61718)p. 120

  ECM and Sensorsp. 121

  Fuel Systemp. 127

  +3.20 Throttle Checks and Adjustments – Deutz Engine (Prior to S/N 61718)p. 131

  Generalp. 131

  Procedurep. 132

  Controller Statusp. 132

  Failure Modesp. 132

  +3.21 Tilt Alarm Switch (Prior to S/N 61718)p. 135

  Manual Adjustmentp. 135

  +3.22 Hydraulic Welder (225-4)p. 138

  Replacement of Weld Transformerp. 138

  Replacement of Hydraulic Motorp. 138

  Replacement of Fine Controlp. 138

  Rotor Replacementp. 139

  Replacement of Flow Regulatorp. 139

  Replacement of Exciting Rectifier Bridgep. 139

  Replacement of Weld Rectifier Bridgep. 140

  Replace Brushes on Sky Welderp. 140

  Replacing Range Switchp. 140

  Replacing Selector Switchp. 140

  Replacement of Couplingsp. 141

  Voltage Change Over – 120/240 Voltp. 141

  +3.23 Troubleshooting of the Sky Welderp. 142

  Low Sky Welder Speedp. 142

  Low Welding Ampsp. 142

  No Output on Weld Receptacles or AC Receptaclesp. 142

  No Ac Output but Weld Outputp. 142

  No Output on Weld Receptacle but AC Receptacle Output OKp. 146

  Welder Completely Dead – No AC or Weld Powerp. 146

  Intermittent Welder Operationp. 146

  3.24 Deutz EMR 2 (S/N 77682 to Present)p. 147

  +3.25 GM Engine General Maintenancep. 160

  Maintenance of the Drive Beltp. 160

  Engine Electrical System Maintenancep. 160

  Checking/Filling Engine Oil Levelp. 160

  Changing The Engine Oilp. 161

  Coolant Fill Procedure – Dual Fuel Enginep. 161

  +3.26 GM Engine Dual Fuel Systemp. 163

  Fuel Filterp. 163

  Electric Lock Offp. 163

  EPR Assemblyp. 164

  Low Pressure Regulator (LPR)p. 164

  Air Fuel Mixerp. 165

  Electronic Throttle Control (ETC)p. 165

  Engine Control Modulep. 166

  Heated Exhaust Gas Oxygen Sensorp. 166

  Gasoline Multi Point Fuel Injection System (MPFI)p. 166

  Gasoline Fuel Pumpp. 167

  Gasoline Pressure And Temperature Sensor Manifoldp. 167

  Fuel Filterp. 167

  Fuel Injector Railp. 167

  Fuel Injectorp. 167

  +3.27 GM Engine Fuel System Repairp. 168

  Propane Fuel System Pressure Reliefp. 168

  Propane Fuel System Leak Testp. 168

  Propane Fuel Filter Replacementp. 168

  Electronic Pressure Regulator (EPR) Assembly Replacementp. 169

  Temperature Manifold Absolute Pressure (TMAP) Sensorp. 170

  Electronic Throttle Control Replacementp. 171

  MIXER REPLACEMENTp. 172

  Coolant Hose Replacementp. 172

  Vapor Hose Replacementp. 172

  Engine Control Module Replacementp. 173

  Heated Exhaust Gas Oxygen Sensor Replacementp. 173

  +3.28 GM Engine LPG Fuel System Diagnosisp. 173

  Fuel System Descriptionp. 173

  Diagnostic Aidsp. 174

  +3.29 Perkins Engine General Maintenancep. 190

  Replacing the Engine Crankcase Breatherp. 190

  Engine Oil Level – Checkp. 190

  Engine Oil and Filter – Changep. 190

  Fuel Filter/Water Separatorp. 192

  Setting the Actuatorp. 193

  Speed Sensor Installationp. 194

  3.30 Engine Radiator Fill Procedure – Perkins & Caterpillarp. 194

  +3.31 DGC DIAGNOSTIC SUPPORT AND TROUBLE CODE DEFINITIONSp. 196

  Section Layoutp. 196

  List of Abbreviations in this Sectionp. 197

  Fault Code Broadcastp. 198

  Diagnostic Trouble Codesp. 198

  CANp. 198

  MIL Outputp. 199

  Diagnostic Calibration Configuration and Corrective Actionsp. 199

  Fault/Diagnostic Trouble Code Interactionp. 200

  DBW Diagnostic Testp. 205

  +3.32 Diagnostic Trouble Code Fault Descriptionsp. 206

  DTC 116- ECT Higher Than Expected Stage 1p. 206

  DTC 117- ECT/CHT Low Voltagep. 207

  DTC 118- ECT/CHT High Voltagep. 209

  DTC 122- TPS1 Signal Voltage Lowp. 211

  DTC 123- TPS1 Signal Voltage Highp. 214

  DTC 217- ECT Higher Than Expected 2p. 216

  DTC 219- RPM Higher Than Max Allowed Governed Speedp. 217

  DTC 336- Crank Signal Input Noisep. 218

  DTC 337- Loss of Crank Input Signalp. 220

  DTC 521- Oil Pressure Sender/Switch High Pressurep. 221

  DTC 524- Oil Pressure Lowp. 224

  DTC 562- Battery Voltage (VBat) Lowp. 228

  DTC 563- Battery Voltage (VBat) Highp. 230

  DTC 601- Microprocessor Failure – FLASHp. 232

  DTC 604- Microprocessor Failure – RAMp. 234

  DTC 606- Microprocessor Failure – COPp. 236

  DTC 642- 5 Volt External Low Voltagep. 238

  DTC 643- 5 Volt External High Voltagep. 240

  DTC 1612- Microprocessor Failure – RTI 1p. 242

  DTC 1613- Microprocessor Failure – RTI 2p. 243

  DTC 1614- Microprocessor Failure – RTI 3p. 245

  DTC 1615- Microprocessor Failure – A/Dp. 247

  DTC 1616- Microprocessor Failure – interruptp. 249

  DTC 1625- CAN J1939 Shutdown Requestp. 251

  DTC 1626- CAN J1939 Transmit (Tx) Faultp. 252

  DTC 1627- CAN J1939 Receive (Rx) Faultp. 253

  DTC 1628- CAN Address Conflict Failurep. 254

  DTC 1629- J1939 TSC1 Message Reciept Lossp. 256

  DTC 1652- TPS1 Loss of Communicationsp. 257

  DTC 2111- Unable to Reach Lower TPSp. 258

  DTC 2112- Unable to Reach Higher TPSp. 260

  DTC 9999- Throttle Actuator Failsafe Spring Failurep. 261

  DTC to SPN/FMI Tablep. 262

  +Section 4. BOOM & PLATFORMp. 265

  +4.1 Boomp. 265

  Removalp. 265

  Disassemblyp. 266

  Inspectionp. 267

  Assemblyp. 268

  Installationp. 269

  +4.2 Articulating jibp. 270

  Removalp. 270

  +4.3 Limit Switch Adjustmentsp. 270

  Boom Horizontal Limit Switchp. 270

  Dual Capacity Angle Limit Switchp. 270

  Boom Length Limit Switchp. 270

  +4.4 Drive Card Setup Proceduresp. 274

  Machine Orientation When Doing Speed Testsp. 274

  Test Notesp. 274

  Lift, Swing, and Drive Cardsp. 275

  Flow Control Cardp. 275

  +4.5 Helac Rotary actuatorp. 277

  Theory Of Operationp. 277

  Tools Required for Assembly/Disassemblyp. 280

  Disassemblyp. 280

  Inspectionp. 284

  Assemblyp. 284

  Installing Counterbalance Valvep. 287

  +Section 5. HYDRAULICSp. 289

  +5.1 Cylinders – Theory of Operationp. 289

  Systems Incorporating Double Acting Cylindersp. 289

  Systems Incorporating Holding Valvesp. 289

  +5.2 Cylinder Repairp. 289

  Cylinders Without Counterbalance Valvesp. 289

  Cylinders With Dual Counterbalance Valvesp. 289

  Disassemblyp. 290

  Cleaning and Inspectionp. 291

  Assemblyp. 292

  +5.3 Valves – Theory of Operationp. 302

  Solenoid Control Valvep. 302

  Relief Valvesp. 305

  +5.4 Pressure Setting Proceduresp. 305

  1. Bang-Bang Main Relief Valve;p. 305

  2. Steer;p. 305

  3. Platform Level Up;p. 305

  4. Platform Level Down;p. 305

  5. Articulating Jib Up;p. 305

  6. Articulating Jib Down;p. 306

  7. The Bang-Bang Main Relief Valve;p. 306

  8. The Proportional Main relief valve;p. 306

  9. Lift Down;p. 306

  10. Swing;p. 306

  +5.5 Hydraulic Motor Repair (H Series Char-lynn)p. 306

  Disassemblyp. 306

  Reassembly Shaft Endp. 308

  Gerotor Endp. 310

  Timing Procedurep. 311

  Standard Rotationp. 311

  Reverse Rotationp. 311

  5.6 Hydraulic Pump “Neutral” Or Null Adjustmentp. 314

  +5.7 Non-feedback, Proportional Electrical Control – NFPEp. 314

  Features and Benefits of the NFPE Controlp. 314

  Input Signal requirementsp. 314

  +Section 6. JLG CONTROL SYSTEM (S/N 61718 to Present)p. 317

  6.1 Introductionp. 317

  6.2 To Connect the JLG Control System Analyzerp. 319

  6.3 Using the Analyzerp. 319

  6.4 Changing the Access Level of the Hand Held Analyzerp. 321

  6.5 Adjusting Parameters Using the Hand Held Analyzerp. 323

  6.6 Machine Setupp. 324

  6.7 Level Vehicle Descriptionp. 324

  6.8 Machine Personality Settingsp. 333

  +6.9 System Testp. 378

  Test from the Platformp. 378

  Test from the Ground Stationp. 380

  6.10 Analyzer Diagnostics Menu Structurep. 395

  +Section 7. BASIC ELECTRICAL INFORMATION & SCHEMATICSp. 401

  7.1 Generalp. 401

  +7.2 Multimeter Basicsp. 401

  Groundingp. 401

  Backprobingp. 401

  Min/Maxp. 401

  Polarityp. 401

  Scalep. 401

  Voltage Measurementp. 401

  Resistance Measurementp. 402

  Continuity Measurementp. 402

  Current Measurementp. 403

  +7.3 Checking Switchesp. 403

  Basic Checkp. 403

  Limit Switchesp. 403

  Automatic Switchesp. 404

  Switch Wiring – Low Side, High Sidep. 404

  +7.4 Applying Silicone Dielectric Compound to Electrical Connectionsp. 404

  Installation of Dielectric Greasep. 405

  Deutsch HD, DT, DTM, DRC Seriesp. 405

  AMP Sealp. 405

  AMP Mate-N-Lokp. 406

  DIN Connectorsp. 406

  Exclusionsp. 406

  +7.5 AMP Connectorp. 408

  Applying Silicone Dielectric Compound to AMP Connectorsp. 408

  Assemblyp. 408

  Disassemblyp. 410

  Wedge Lockp. 410

  Service – Voltage Readingp. 410

  +7.6 Deutsch Connectorsp. 412

  DT/DTP Series Assemblyp. 412

  DT/DTP Series Disassemblyp. 412

  HD30/HDP20 Series Assemblyp. 413

  HD30/HDP20 Series Disassemblyp. 413

• Section 6 – JLG Control System (S/N 61718 to Present)
  • Analyzer connection and use
  • Access levels and parameter adjustment
  • Machine setup and level vehicle description
  • Machine personality settings
  • System test (platform and ground station)
  • Analyzer diagnostics menu structure
• Section 7 – Basic Electrical Information & Schematics
  • Multimeter basics
  • Checking switches
  • Dielectric compound application
  • AMP and Deutsch connectors
  • Electrical and hydraulic schematics

What This Manual Helps You Do

This is not a generic overview. It is the same service documentation used by JLG-trained technicians, and it is written for someone who is actually going to put their hands on the machine. The JLG 400S 460SJ Service and Maintenance Manual gives you the procedures, tolerances and diagnostic paths needed to keep the machine safe and productive across its full service life.

Key jobs this manual supports:

• Performing the full pre-start, frequent, annual and preventative maintenance schedules
• Diagnosing and repairing the drive hub, torque hub, drive brake and drive motor
• Setting drive card ramp times and current limits using the flow control card procedure
• Checking swing bearing bolt condition with a feeler gauge and measuring wear tolerance
• Replacing the swing bearing and torquing it to the correct sequence and value
• Bleeding the oscillating axle and performing the lockout test
• Reading and clearing diagnostic trouble codes on the Ford EFI, Deutz EMR 2, GM and DGC engine management systems
• Using the JLG Control System hand-held analyzer to change access levels, adjust personalities and run the built-in system test
• Servicing the hydraulic welder (225-4) including brush replacement, rectifier bridge testing and voltage changeover
• Rebuilding hydraulic cylinders with correct torque values for head, tapered bushing and holding valves
• Adjusting main relief, proportional relief, steer, level, jib and swing pressures
• Working on the Helac rotary actuator – disassembly, inspection and timing of the piston and shaft splines
• Servicing the GM 3.0L dual fuel system including the EPR, LPR, mixer, ETC and TMAP sensor
• Following the Perkins and Caterpillar radiator fill procedure to avoid air locks
• Troubleshooting the Sky Welder and on-board generator

Why It Matters

JLG aerial work platforms operate at high hydraulic pressures and carry people at height. Getting the torque wrong on a swing bearing bolt, or setting a relief pressure incorrectly, or missing a wear limit on a composite bearing, is not a minor issue. The JLG 400S 460SJ service manual gives you the exact values the manufacturer specifies, so the repair is right the first time.

IMAGES PREVIEW

The diagnostic sections in particular save time and money. The Ford EFI, Deutz EMR 2 and DGC trouble code tables tell you what the code means, what conditions set it, and what corrective action is recommended. The analyzer flow charts and system test procedures let you verify switch, valve and sensor operation without guesswork.

A Note on Coverage

This manual covers both the 400S and 460SJ models, and it covers multiple engine and option configurations across the production run. Some sections are marked with serial number breaks (for example, drive hub part numbers 2780243/2780244/2780246, swing brake prior to S/N 64802 and S/N 64802 to present, Ford EFI diagnostics prior to S/N 61718, and Deutz EMR 2 from S/N 77682 to present). Always check your machine serial number against the section heading before following a procedure, so you are using the correct variant.

Instant PDF Delivery

This JLG 400S 460SJ Service and Maintenance Manual PDF is delivered instantly after checkout. There is no shipping, no waiting for a physical book, and no risk of a lost or damaged copy. Download it to your laptop, tablet or phone and take it into the workshop with you. You can print the pages you need for the job in front of you – the torque charts, the wiring schematics, the hydraulic diagrams, the fault code tables – and keep the rest of the manual clean for future reference. If you own, service or maintain a JLG 400S or 460SJ, this is the reference you want within reach.