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SkyJack SJIII 3220 SJIII 3226 SJIII 4620 SJIII 4626 SJIII 4632 Service Manual
SJIII 3220 60 002 259 & Above
SJIII 3226 27 006 432 & Above
SJIII 46xx 70 007 139 & Above
Content:
Section 1 - SCHEDULED MAINTENANCE
Operators Responsibility for Maintenance
Aerial Platform and Mobile Elevating Work Platform Definition
Purpose of Equipment
Use of Equipment
Manuals
Service Policy and Warranty
Operator Safety Reminders, Warnings and Precautions
Maintenance and Inspection Schedule
Owners Annual Inspection Record
Replacement Parts
Maintenance and Service Safety Tips
Hydraulic System & Component Maintenance and Repair
Maintenance Hints
Service and Maintenance
About this Section
Service Bulletins
Maintenance and Inspection
Maintenance Instructions
Tables
Table 1.1 Owners Annual Inspection Record
Table 1.2 Pre-Delivery/Maintenance Inspection Checklist
Scheduled Maintenance
1.1 Scheduled Maintenance Inspections
1.2 Function Tests
SECTION 2 - MAINTENANCE TABLES AND DIAGRAMS
Tables
Table 2.1 Specifications and Features
Table 2.1 Specifications and Features (Continued)
Table 2.2 Floor Loading Pressure
Table 2.3 Maximum Platform Capacities (Evenly Distributed)
Table 2.4 Torque Specifications
Table 2.5 Torque Specifications for Fasteners (Imperial)
Table 2.6 Torque Specifications for Fasteners (Metric)
Table 2.7 Torque Specifications for Hydraulic Couplings & Hoses
SECTION 3 - SYSTEM COMPONENT IDENTIFICATION AND SCHEMATICS
Charts
3.1 Electrical Symbol Chart
3.2 Hydraulic Symbol Chart
3.3 Wire Number and Color Code
3.4 AC Cord Color Code
Parts List
3.5 Hydraulic Schematic Parts List
3.5 Hydraulic Schematic Parts List (Continued)
3.6 Electrical Components Parts List
3.6a Electrical Component Parts List (Continued)
3.6b Electrical Component Parts List (Continued)
3.7a Hydraulic Manifold and Port Identifications
3.7b Hydraulic Manifold and Port Identifications
Diagrams and Schematics
3.8a Platform Control Console Diagram
3.8b Platform Control Console Diagram - Long Cable Option
3.9a Powerdeck Platform Modification Diagram
3.9b Powerdeck Platform Modification Diagram
3.10 Powered Extension Platform Control Console and Harness
3.11a Base Control Console Diagram (Including EE-Rated)
3.11b Base Control Console Diagram (Non EE-Rated Only)
3.12 Scissor Arm Control Cable Diagram
3.13 Limit Switch Assembly Wire Diagrams
3.14 Harness Wire Diagrams
3.15 Telematics Harness - ZTR
3.16a Hydraulic Schematic (Models 322x)
3.16b Hydraulic Schematic (Models 322x)
3.17a Hydraulic Schematic (Models 46xx)
3.17b Hydraulic Schematic (Models 46xx)
3.18 Main Manifold Harness
3.19a Electrical Panel Diagram
3.19b Electrical Panel Diagram
3.20a Electrical Panel Diagram with Power Deck
3.20b Electrical Panel Diagram with Power Deck
3.21a Electrical Panel Diagram (EE Rated)
3.21b Electrical Panel Diagram (EE Rated)
3.22a Electrical Panel Diagram (EE Rated) with Power Deck
3.22b Electrical Panel Diagram (EE Rated) with Power Deck
3.23a Electrical Panel Diagram - Inverter
3.23b Electrical Panel Diagram - Inverter
3.24a Electrical Panel Diagram with Power Deck - Inverter
3.24b Electrical Panel Diagram with Power Deck - Inverter
3.25 Telematics Wiring - Morey (Non EE-Rated)
3.26 Horn/Tilt Switch/Flashing Light Diagram
3.27a Electrical Schematic (ANSI/CSA except EE rated - Equipped with no options)
3.27b Electrical Schematic (ANSI/CSA except EE rated - Equipped with no options)
3.28a Electrical Schematic (EE Rated - Equipped with no options)
3.28b Electrical Schematic (EE Rated - Equipped with no options)
3.29a Electrical Schematic (All Models - Equipped with all options)
3.29b Electrical Schematic (All Models - Equipped with all options)
3.29c Electrical Schematic (All Models - Equipped with all options)
SECTION 4 - TROUBLESHOOTING INFORMATION
Introduction
Electrical System
4.1-1 All Controls Inoperative
4.1-2 All Controls Except for Down Function Inoperative
4.1-3 All Controls Inoperative From Base Control Console
4.1-4 All Controls Inoperative From Platform Control Console
4.1-5 No Drive or Up Function from Platform or Base Controls (CE only)
4.1-6 No Down or Reverse Only Function from Platform Controls
4.1-7 No Up or Forward Only Function from Platform Control Console
4.1-8 No Up Function from Platform or Base Control Console
4.1-9 No Down Function from Platform or Base Control Console (ANSI/CSA)
4.1-10 No Down Function from Platform or Base Control Console (CE)
4.1-11 No Up Function from Base Control Console
4.1-12 No Down Function from Base Control Console
4.1-13 Steer Only Inoperative
4.1-14 Drive Only Inoperative
4.1-15 No Drive or Steer when Platform Fully Lowered
4.1-16 No Drive or Steer when Platform Elevated
4.1-17 Elevated Drive Speed Does not Activate
4.1-18 Work Platform Drives in Slow Speed Only
4.1-19 Forward Drive Function Inoperative
4.1-20 Reverse Drive Function Inoperative
4.1-21 Brake will not Release
4.1-22 High/Low Torque Inoperative
4.1-23 Right Steer Inoperative
4.1-24 Left Steer Inoperative
4.1-25 Power Extension Platform will not Extend or Retract
4.1-26 Power Extension Platform will not Extend
4.1-27 Power Extension Platform will not Retract
4.1-28 Two or more Functions at one time
Hydraulic Systems
4.2-1 All Function Inoperative
4.2-2 Platform Drifts Down
4.2-3 Platform Lifts Slowly
4.2-4 Platform does not Lift
4.2-5 Platform will not Lower
4.2-6 Platform Drives Slow
4.2-7 Platform will not Drive in Forward or Reverse
4.2-8 Brake(s) will not Release
4.2-9 Brake(s) will not Release (Additional for machines with Integral Brakes)
4.2-10 Aerial Platform will not hold on a Grade (Machines with Integrals Brakes)
4.2-11 Platform does not Steer
4.2-12 All System sluggish
4.2-13 Power Extension Platform will not Extend or Retract
4.2-14 High/Low Torque Inoperative
SECTION 5 - PROCEDURES
Service & Maintenance
General
Safety and Workmanship
Platform
5.1-1 OEM Controller Electronics Information
5.1-2 OEM Controller Troubleshooting
5.1-3 OEM Controller Switch Wiring
5.1-4 Gate Spring Hinge Adjustment
Base
5.2-1 System Relief Pressure Adjustment
5.2-2 Lift Pressure Adjustment
5.2-3 Electronic Tilt Switch Setup Procedure
5.2-4 Pothole Limit Switches (LS4 & LS5) Replacement and Adjustment
5.2-5 Wheel Reinstallation and Torquing Procedure
5.2-6 Tightening and Torque Recommendations for Hydraulic Couplings and Hoses
Scissors
5.3-1 High Speed Cutout Limit Switches (LS1A & LS1B) & Drive Override Limit Switch (LS6) Replacement and
Adjustment
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