Skyjack SJ46 AJ+, SJ46 AJ, SJ51 AJ Articulating Boom Lift Service Manual
299 pages · Publication 229042AGA
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What's inside
From the manual's own table of contents: 5 sections, 319 entries. See sample pages (PDF, 614 KB)
Section 1 – Scheduled Maintenance30 topics
- Read and Heed
- 1.1-1 MEWP and Mobile Elevating Work Platform Definition
- 1.1-2 Purpose of Equipment
- 1.1-3 Use of Equipment
- 1.1-5 Service Policy and Warranty
- 1.1-6 Operator Safety Reminders, Warnings and Precautions
- Maintenance and Service
- 1.2-1 Maintenance and Inspection Schedule
- 1.2-2 Owner’s Annual Inspection Record
- 1.2-3 Replacement Parts
- 1.2-4 Maintenance and Service Safety Tips
- 1.2-5 Hydraulic System & Component Maintenance and Repair
- 1.2-6 Hydraulic Maintenance Hints
- 1.2-7 Railing Maintenance and Repair
- Scheduled Maintenance
- 1.3-1 Service Bulletins
- 1.3-2 Maintenance and Inspection
- 1.3-3 Maintenance Instructions
- Owner’s Annual Inspection Record
- Pre-Delivery/Maintenance Inspection Checklist
- Scheduled Maintenance Inspections
- 1.6-1 Electrical
- 1.6-2 Hydraulic
- 1.6-4 Limit switches
- 1.6-5 Engine Compartment
- 1.6-6 Control Compartment
- 1.6-8 Platform
- 1.6-9 Boom Assembly
- 1.6-10 Optional equipment
- Function Tests
Section 2 – Maintenance Tables and Diagrams18 topics
- Standard Hose Numbering System
- Torque Specifications for Fasteners (US Imperial)
- Torque Specifications for Fasteners (Metric)
- Torque Specifications for Hydraulic Couplings & Hoses
- MEWP Torque Specifications
- Axle Torque Specifications
- Axle Maintenance Intervals
- Maximum Platform Capacity
- Tire Specifications
- Floor Loading Pressure
- Hydraulic Specifications
- Hydraulic & Gear Oils
- Specifications & Features - Dimensions & Speeds
- Engine Specifications
- Reach & Dimension Diagrams - SJ46 AJ+ ANSI/CSA
- Reach & Dimension Diagrams - SJ46 AJ CE & AS
- Reach & Dimension Diagrams - SJ51 AJ CE & AS
- Axle Oscillation Diagram
Section 3 – System Component Identification and Schematics59 topics
- Electrical Symbol Chart
- Hydraulic Symbol Chart
- Wire Number and Colour Chart
- Hydraulic Parts List
- Electrical Parts List
- Brake Manifold Components and Ports
- Rotary Manifold Ports
- Drive and System Pump Ports
- Drive Motor Ports
- Jib Valve Ports
- Pressure Reducing Valve Ports
- Main Manifold Ports
- Generator Control Valve and Manifold
- Major Components
- Main Harness and Fuel Level Switch Harness
- Interface Harness - Deutz D2.9L
- Interface Harness - Deutz D2011
- Engine Interface Harness - Deutz D2.2
- Interface Harness - Kubota
- ECU Engine Wiring Diagram - Deutz D2011
- Glow Plug Harnesses - Deutz D2.9L
- Glow Plug Harnesses - Deutz D2011
- Platform Harnesses
- Platform Control Cables - CE & AS
- Limit Switch Connections - ANSI/CSA
- Limit Switch Connections - CE & AS
- Load Sensing Cable Connections - CE & AS
- All Motion Alarm Connections - CE & AS
- Flashing Amber Light Connections
- SGE Wiring Diagram
- SGE Connections - ANSI/CSA
- Moba Load Cell Connections - ANSI/CSA
- Footswitch Connections - ANSI/CSA
- CANbus Cable Connections - ANSI/CSA
- Power Cable Connections - ANSI/CSA
- Oil Cooler and 3.5 kW Generator Base Control Box Wiring
- Generator (3.5 kW) Platform Control Box Wiring
- Oil Cooler and 12 kW Generator Base Control Box Wiring
- Generator (12 kW) Platform Control Box Wiring
- 3.41 12kW Generator Electrical Connections
- Load Circuit Wiring - SJ46 AJ+
- Hydraulic Schematic - ANSI/CSA
- Hydraulic Schematic - CE & AS
- Platform Control Box Wiring - ANSI/CSA
- Platform Control Box Wiring - CE
- Platform Control Box Wiring - AS
- Base Control Box Wiring - ANSI/CSA
- Base Control Box Wiring - ANSI/CSA with Positive Air Shut-Off Option
- Base Control Box Wiring - CE Deutz D2.2
- Base Control Box Wiring - CE Deutz D2011
- Base Control Box Wiring - AS
- Electrical Schematic - ANSI/CSA
- Electrical Schematic - CE with Deutz D2.2
- Electrical Schematic - CE with D2011
- Electrical Schematic - AS
- Interface & Engine Electrical Schematic - Deutz D2.9L
- Interface & Engine Electrical Schematic - Deutz D2011
- Engine Electrical Schematic - Deutz D2.2
- Interface & Engine Electrical Schematic - Kubota WG2503
Section 4 – Troubleshooting Information118 topics
- Introduction
- Electrical System - ANSI/CSA
- 4.2-1 All Controls are Inoperative from the Base or Platform Console
- 4.2-2 All Controls are Inoperative from the Base Console
- 4.2-3 The Engine will not Crank from the Base or Platform
- 4.2-4 The Engine will not Crank from the Base
- 4.2-5 The Engine will not Crank from the Platform
- 4.2-6 The Boom Controls are Inoperative (Drive Operates)
- 4.2-7 No Boom Up from the Base or Platform Controls
- 4.2-8 No Boom Up from the Base Console
- 4.2-9 No Boom Up from the Platform Console
- 4.2-10 No Boom Down from the Base or Platform Consoles
- 4.2-11 No Boom Down from the Base Console
- 4.2-12 No Boom Down from the Platform Console
- 4.2-13 No Turret Rotate Right from the Base or Platform Consoles
- 4.2-14 No Turret Rotate Right from the Base Console
- 4.2-15 No Turret Rotate Right from the Platform Console
- 4.2-16 No Turret Rotate Left from the Base or Platform Consoles
- 4.2-17 No Turret Rotate Left from the Base Console
- 4.2-18 No Turret Rotate Left from the Platform Console
- 4.2-19 No Riser Up from the Base or Platform Consoles
- 4.2-20 No Riser Up from the Base Console
- 4.2-21 No Riser Up from the Platform Console
- 4.2-22 No Riser Down from the Base or Platform Consoles
- 4.2-23 No Riser Down from the Base Console
- 4.2-24 No Riser Down from the Platform Console
- 4.2-25 No Telescope Out from the Base or Platform Consoles
- 4.2-26 No Telescope Out from the Base Console
- 4.2-27 No Telescope Out from the Platform Console
- 4.2-28 No Telescope In from the Base or Platform Consoles
- 4.2-29 No Telescope In from the Base Console
- 4.2-30 No Telescope In from the Platform Console
- 4.2-31 No Platform Level Up from the Base or Platform Consoles
- 4.2-32 No Platform Level Up from the Base Console
- 4.2-33 No Platform Level Up from the Platform Console
- 4.2-34 No Platform Level Down from the Base or Platform Consoles
- 4.2-35 No Platform Level Down from the Base Console
- 4.2-36 No Platform Level Down from the Platform Console
- 4.2-37 No Platform Rotate or Jib Functions from the Base or Platform Consoles
- 4.2-38 No Platform Rotate Right from the Base or Platform Consoles
- 4.2-39 No Platform Rotate Right from the Base Console
- 4.2-40 No Platform Rotate Right from the Platform Console
- 4.2-41 No Platform Rotate Left from the Base or Platform Consoles
- 4.2-42 No Platform Rotate Left from the Base Console
- 4.2-43 No Platform Rotate Left from the Platform Console
- 4.2-44 No Jib Up from the Base or Platform Consoles
- 4.2-45 No Jib Up from the Base Console
- 4.2-46 No Jib Up from the Platform Console
- 4.2-47 No Jib Down from the Base or Platform Consoles
- 4.2-48 No Jib Down from the Base Console
- 4.2-49 No Jib Down from the Platform Console
- 4.2-50 No Drive or Steer Functions
- 4.2-51 No Forward or Reverse Drive
- 4.2-52 No Forward Drive
- 4.2-53 No Reverse Drive
- 4.2-54 The Brake will not Release
- 4.2-55 No Left Steer
- 4.2-56 No Right Steer
- 4.2-57 The Directon Sensing is Inoperative
- 4.2-58 The Load Sense Indicates Overload or Overload Warning with the Platform Empty or Below Weight
- 4.2-59 The Overload Indicator Light does not Turn On when the Platform is Overloaded
- 4.2-60 The Audible Alarm does not Turn On with the Platform Overloaded
- Electrical System - CE & AS
- 4.3-1 All Controls are Inoperative
- 4.3-3 Engine Will Not Crank
- 4.3-4 Engine Cranks but Will Not Start
- 4.3-5 Glow Plug Circuit Inoperative - Deutz D2011 diesel engine
- 4.3-6 All Base Control Console Inoperative
- 4.3-7 No Movement from Base Control Console
- 4.3-8 All Controls Inoperative From Platform Control Console
- 4.3-9 Throttle Inoperative, Mid and High - Deutz D2.9L
- 4.3-10 Mid Throttle Inoperative
- 4.3-11 High Throttle Inoperative
- 4.3-12 Brake will not Release
- 4.3-13 Differential Lock will not Engage
- 4.3-14 Differential Lock Engages Momentarily but will not stay Engaged
- 4.3-15 No Drive and Steer
- 4.3-16 No High Speed Drive
- 4.3-17 No Elevated Drive
- 4.3-18 Direction Sensing Inoperative
- Load Sensing System - CE & AS
- 4.4-1 Green Power LED is not Flashing
- 4.4-2 Load Cell red Alarm LED is ON (with platform empty)
- 4.4-3 Red Error LED is ON
- 4.4-4 Load Cell red Alarm LED is OFF (with platform overloaded)
- 4.4-5 Platform Indicator Light does not turn ON
- 4.4-6 Audible Alarm does not turn ON
- 4.4-7 Boom and Drive Functions are Enabled (with boom extended)
- Hydraulic System
- 4.5-1 All Controls Inoperative
- 4.5-2 All Boom Functions Inoperative
- 4.5-3 No Main Boom Up
- 4.5-4 No Main Boom Down
- 4.5-5 No Riser Boom Up
- 4.5-6 No Riser Boom Down
- 4.5-7 Riser Boom Down Jerky
- 4.5-8 No Turret Rotate Left
- 4.5-9 No Turret Rotate Right
- 4.5-10 No Boom Extend
- 4.5-11 No Boom Retract
- 4.5-14 No Jib Down - ANSI/CSA
- 4.5-16 No Platform Rotation Right - ANSI/CSA
- 4.5-17 No Platform Rotation Right - CE & AS
- 4.5-18 No Platform Rotation Left - ANSI/CSA
- 4.5-19 No Platform Rotation Left - CE & AS
- 4.5-20 Platform will not Level Down Manually
- 4.5-21 Platform will not Level Up Manually
- 4.5-22 Brake will not Release
- 4.5-23 Brake will not Engage
- 4.5-24 Differential Lock will not Engage
- 4.5-25 No Drive Forward or Reverse
- 4.5-26 No Forward Drive
- 4.5-27 No Reverse Drive
- 4.5-28 No High Speed Drive
- 4.5-29 No Right Steer
- 4.5-30 No Left Steer
- 4.5-31 Axle Will Not Oscillate
- 4.5-32 Axle Will Not Lock
Section 5 – Procedures89 topics
- General
- 5.1-1 Safety and Workmanship
- System Control Modules (OCM/SCM)
- 5.2-1 User Interface Keys
- 5.2-2 OCM Character Functions Charts
- 5.2-3 OCM Function Channel Names
- 5.2-4 OCM Operating Values Chart - CE & AS
- 5.2-5 How to Select OCM Functionality - CE & AS
- 5.2-6 How to View OCM Operation - CE & AS
- 5.2-7 How to Unlock and Modify OCM Settings - CE & AS
- 5.2-8 OCM Pin Voltage Reference - CE & AS
- 5.2-9 SCM Pin Reference - ANSI/CSA
- 5.2-10 Check I/O Error - ANSI/CSA
- 5.2-11 How to Unlock and Modify the SCM - ANSI/CSA
- 5.2-12 SCM Select Model - ANSI/CSA
- 5.2-13 SCM Weight Calibration - ANSI/CSA
- 5.2-14 SCM Weight Calibration Flowchart - ANSI/CSA
- 5.2-15 CAN Bus Communication Check - ANSI/CSA
- Platform
- 5.3-1 Fly Boom Switch Voltage References
- 5.3-2 Platform Controller Voltage References
- 5.3-3 Load cell 10% error troubleshooting
- 5.3-4 Replace the load cell
- Load Sensing System - CE & AS
- 5.4-1 Load Sensing System
- 5.4-2 Verify Proper Operation of the Load Sensing System
- 5.4-3 Calibration of Load Sensing System (with “Teach In” Handset)
- Boom
- 5.5-1 Check Wear Pads
- 5.5-2 Shim Wear Pads
- 5.5-3 Cable Carrier Repair
- 5.5-4 Rotary Actuator Bolt Torque Procedure
- 5.5-5 Master Cylinder Replacement
- 5.5-6 Limit Switch Locations - SJ46 AJ+ ANSI/CSA
- 5.5-7 Limit Switch Locations - SJ46 AJ & SJ51 AJ CE & AS
- Turret
- 5.6-1 Check and Replace the High Pressure Filter
- 5.6-2 Ring Gear Bolt Torque Sequence
- 5.6-3 Check the Ring Gear for Axial Wear
- 5.6-4 Electronic Tilt Switch Setup Procedure
- 5.6-5 Battery Replacement
- Deutz Diesel Engines
- 5.7-1 Replace Engine Oil and Filter
- 5.7-2 Replace the Fuel Filter
- 5.7-3 Replace the Air Filter
- 5.7-4 Check the Engine Belt
- 5.7-5 Check the Oil Cooler (Deutz D2011 only)
- 5.7-6 Retrieve Engine Fault Codes - Deutz D2.9L
- 5.7-7 Deutz D2.9L Fault Codes
- Hydraulic Tank
- 5.8-1 Hydraulic Oil Replacement
- 5.8-2 Hydraulic Filter Replacement
- Kubota WG2503 Dual Fuel Engine
- 5.9-1 Engine Parameter Display (KAntrak 1700)
- 5.9-2 Kubota WG2503 Diagnostic Trouble Codes
- 5.9-3 ECU Pin Reference Chart (Kubota WG2503)
- 5.9-8 TPS & Engine Speed (Kubota WG2503)
- 5.9-9 Fuel Temperature Sensor (Kubota WG2503)
- 5.9-10 Oil Pressure Sensor (Kubota WG2503)
- Manifold and Hydraulic Pumps
- 5.10-1 Hydraulic Brake Pressure Adjustment
- 5.10-2 Hydraulic System Relief Valve Adjustment
- 5.10-3 Riser Down Relief Valve Adjustment
- 5.10-4 Turret Rotate Relief Valve Adjustment
- 5.10-5 Platform Level Relief Valve Adjustment
- 5.10-6 Test Charge Pump Pressure on Drive Pump
- 5.10-7 Test Forward Drive Pressure on Drive Pump
- 5.10-8 Test Reverse Drive Pressure on Drive Pump
- Axles
- 5.11-1 Change the Oil in the Axles
- 5.11-2 Check the Oil Level in the Torque Hubs
- 5.11-3 Change the Oil in the Torque Hubs
- 5.11-4 Check the Oil Level in the Axle Gearbox
- 5.11-5 Change the Oil in the Axle Gearbox
- 5.11-6 Oscillating Cylinder Bolt Replacement
- 5.11-7 Oscillating Cylinder Replacement
- 5.11-8 Bleed the Oscillating Axle Cylinders
- 5.11-9 Test the Oscillating Axle Cylinders
- 5.11-10 Pin Brake Adjustments
- 5.11-11 Brake Inspection
- 5.11-12 Axle U-Bolt Torque
- Grease Points
- 5.12-1 Grease the Turret Ring Gear
- 5.12-2 Grease the Turret Swing Drive
- 5.12-3 Grease the Axles
- 5.12-4 Grease the Drive Shaft
- Options
- 5.13-1 Generator Troubleshooting
- 5.13-2 Generator Frequency/Voltage Check & Adjustment
Inside this manual
Real pages from this service manual (299 pages). Open the sample pages (PDF, 613 KB)
- Specifications, page 46: Specifications & Features - Dimensions & Speeds
- Troubleshooting, page 122: 4.1 Introduction
- Diagram, page 274: Kubota WG2503 Dual Fuel Engine
- Color page, page 233: SJ46 AJ+, SJ46 AJ, SJ51 AJ
- Color page, page 12: SJ46 AJ+, SJ46 AJ, SJ51 AJ
- Foldout diagram (color), page 74: SJ46 AJ+, SJ46 AJ, SJ51 AJ
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This is a service manual
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Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 299 pages
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