Skyjack SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 Electric Scissor Lift Service Manual
185 pages · Publication 223198AFA
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What's inside
From the manual's own table of contents: 5 sections, 167 entries. See sample pages (PDF, 617 KB)
Section 1 – Maintenance31 topics
- Read and Heed
- 1.1-1 Mobile Elevating Work Platform (MEWP) definition
- 1.1-2 Purpose of equipment
- 1.1-3 Use of equipment
- 1.1-4 Service Policy and Warranty
- 1.1-5 Ownership of MEWP
- 1.1-6 Optional equipment
- General information
- 1.2-1 Owner’s annual inspection record
- 1.2-2 Replacement parts
- 1.2-3 Maintenance and service safety tips
- 1.2-4 Hydraulic system & component maintenance and repair
- 1.2-5 Hydraulic oil maintenance
- 1.2-6 Hydraulic maintenance tips
- 1.2-7 Railing maintenance and repair
- 1.2-8 Multi-conduction control cable repair
- Scheduled maintenance and inspections
- 1.3-1 Service bulletins
- 1.3-2 Maintenance and inspections
- 1.3-3 Schedule and instructions
- 1.3-4 Function tests
- Owner’s Annual Inspection Record
- Frequent/Periodic/Annual/Pre-Delivery Inspection Checklist
- Scheduled maintenance inspections
- 1.6-1 Service Bulletins
- 1.6-2 Annual Inspections
- 1.6-4 Pothole Protection Limit Switches
- Base Inspection
- Scissors Inspection
- Platform Inspection
- Function Tests
Section 2 – Maintenance Tables and Diagrams16 topics
- Standard Hose Numbering System
- Torque Specifications for Fasteners (US)
- Torque Specifications for Fasteners (Metric)
- Torque Specifications for Hydraulic Couplings & Hoses
- Torque specifications for cartridges and coils
- Torque Specifications
- Floor Loading Pressure (ANSI/CSA)
- Floor Loading Pressure (CE)
- Floor Loading Pressure (AS)
- Floor Loading Pressure (KC)
- Specifications & Features - SJ3220
- Specifications & Features - SJ3226
- Specifications & Features - SJ4720 & SJ4726
- Specifications & Features - SJ4732
- Maximum Platform Capacities (Evenly Distributed) - ANSI/CSA
- Maximum Platform Capacities (Evenly Distributed) - CE, AS, KC
Section 3 – System Component Identification and Schematics40 topics
- Electrical Symbol Chart
- Hydraulic Symbol Chart
- Wire Number and Color Code
- Hydraulic Parts List
- Electrical Parts List
- Platform Control Box Wiring
- Platform Control Box Wiring - SGLE
- Platform Control Box Wiring - ACPP
- Base to Platform Control Cable
- Base Control Wiring
- Base Control Wiring - ACPP
- Emergency Lowering Switch Wiring
- Limit Switch Wiring
- Limit Switch Wiring - Anti-Overrising Posts (KC Only)
- Anti-Overrising Harnesses (KC Only)
- Electrical Harnesses
- Powerdeck Harnesses
- Interlocks Harness (ANSI/CSA ACPP)
- Outdoor Switch Wiring and Harness (SJ3226 ANSI/CSA Only)
- Inverter wiring
- Single Lift Cylinder Manifold MB5 - SJ3220, SJ4720
- Dual Lift Cylinder Manifold MB3 & MB4 - SJ3226, SJ4726/32
- Powerdeck Manifold MB1 - SJ3220, SJ4720
- Major Component Identification
- Main Manifold MB1
- Hydraulic Schematics - SJ3220/26 ANSI/CSA
- Hydraulic Schematics - SJ3220/26 CE
- Hydraulic Schematics - SJ3220/26 AS/KC
- Hydraulic Schematics - SJ4720/26/32 ANSI/CSA
- Hydraulic Schematics - SJ4720/26/32 CE
- Hydraulic Schematics - SJ4720/26/32 AS/KC
- Telematics Harness
- Electrical Schematic - SJ3220, SJ4726/32 - All Options (ANSI/CSA)
- Electrical Schematic - SJ3226 - All Options (ANSI/CSA)
- Electrical Schematic - All Options (CE)
- Electrical Schematic - All Options (AS)
- Electrical Schematic - All Options (KC)
- Electrical Schematic - SJ4726 - Aircraft Protection Package
- Main Harness Wiring - SJ3220/26
- Main Harness Wiring - SJ4720/26/32
Section 4 – Troubleshooting Information36 topics
- Introduction
- Electrical System
- 4.2-1 All Controls Inoperative
- 4.2-2 All Controls Except for Down Function Inoperative
- 4.2-3 All Controls Inoperative From Base Control Console
- 4.2-4 No Up Function from Base Control Console
- 4.2-5 No Down Function from Base Control Console
- 4.2-6 No Emergency Down Function from Base Control Console*
- 4.2-7 All Controls Inoperative From Platform Control Console
- 4.2-8 No Up Function from Platform Controls (ANSI/CSA, CE, and AS)
- 4.2-9 No Up Function from Platform Controls (KC)
- 4.2-10 No Down Function from Platform Controls
- 4.2-11 Right Steer Inoperative
- 4.2-12 Left Steer Inoperative
- 4.2-13 Forward Drive Function Inoperative
- 4.2-14 Reverse Drive Function Inoperative
- 4.2-15 No Drive or Steer when Platform Elevated
- 4.2-16 High/Low Torque Inoperative
- 4.2-17 Pressure Transducer PT1 Inoperative
- 4.2-18 Angle Transducers AT1 and/or AT2 Inoperative
- 4.2-19 Power Deck Inoperative (if Option is installed)
- Hydraulic System
- 4.3-1 All Functions Inoperative
- 4.3-2 All System Sluggish
- 4.3-3 Platform Drifts Down
- 4.3-4 Platform Lifts Slowly
- 4.3-5 Platform Does Not Lift
- 4.3-6 Platform Will Not Lower
- 4.3-7 Platform Drives Slow
- 4.3-8 Platform Will Not Drive in Forward or Reverse
- 4.3-9 Brake(s) will not Release (Pin Brakes)
- 4.3-10 Brake(s) will not Release (Wet Brakes)
- 4.3-11 MEWP will not hold on a Grade (Wet Brakes)
- 4.3-12 Platform does not Steer
- 4.3-13 High/Low Torque Inoperative
- 4.3-14 Platform Power Deck Inoperative (if option installed)
Section 5 – Procedures39 topics
- General
- 5.1-1 Safety and Workmanship
- Platform
- 5.2-1 Single Axis Joystick
- 5.2-2 Gate Spring Hinge Adjustment
- 5.2-3 Platform Mounting Hardware
- Base
- 5.3-1 System Relief Pressure Adjustment
- 5.3-2 Lift relief pressure adjustment
- 5.3-3 Pothole Compression Rod Replacement
- 5.3-4 Replace and Adjust the Pothole Limit Switches (LS1 battery tray side & LS2 hydraulic tray side)
- 5.3-5 Pothole Bar Replacement/Removal for Servicing
- 5.3-6 Tightening and Torque Recommendations for Hydraulic Couplings and Hoses
- 5.3-7 Integrated Hub Wheel Removal and Installation
- 5.3-8 Test the DC motor
- Battery Charger
- 5.4-1 Battery service
- 5.4-2 Charger Maintenance
- 5.4-3 Charger Profiles
- 5.4-4 Charger Troubleshooting
- 5.4-5 Charger Fault Codes
- 5.4-6 Charger Error Codes
- Skycoded Module
- 5.5-1 Skycoded Control Module (CM1)
- 5.5-2 Calibration and Diagnostic Tool Key Functions
- 5.5-3 Skycoded Diagnostic Messages
- 5.5-4 Skycoded Help Messages and LED Flash Codes
- 5.5-5 Skycoded Fault Codes
- 5.5-6 Override Mode Procedure
- 5.5-7 Initial Set-up and Change Defaults Procedure
- 5.5-8 Access Levels Procedure
- 5.5-9 Calibrate Level Procedure
- 5.5-10 Calibrate Load Procedure
- 5.5-11 Language Setting Procedure
- 5.5-12 All Motion Alarm
- 5.5-13 Calibration Load - Faults
- Software Updates
- 5.6-1 Flash the controller
- 5.6-2 EZcal pro update
Inside this manual
Real pages from this service manual (185 pages). Open the sample pages (PDF, 615 KB)
- Specifications, page 42: Specifications & Features - SJ3220
- Diagram, page 66: Electrical Harnesses
- Troubleshooting, page 98: Section 4 – Troubleshooting Information
- Color page, page 9: SJ3220, SJ3226, SJ4720, SJ4726, SJ4732
- Color page, page 52: SJ3220, SJ3226, SJ4720, SJ4726, SJ4732
- Foldout diagram (color), page 79: SJ3220, SJ3226, SJ4720, SJ4726, SJ4732
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This is a service manual
Here's how it compares to the other manual types.
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, 185 pages
Quantity one is the manual described above.
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Other editions and similar models
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