Genie GR-20J GR-26J Service Manual 227656 – PDF DOWNLOAD
Language : English
Pages : 119
Downloadable : Yes
File Type : PDF
Table of Contents:
Genie GR-20J GR-26J Service Manual 227656 – PDF DOWNLOAD
Front Cover................................................................................. 1 Introduction................................................................................ 2 Revision History............................................................................ 3 Serial Number Legend........................................................................ 5 Safety Rules................................................................................ 6 Table of Contents........................................................................... 8 Specifications.............................................................................. 13 Machine Specifications.................................................................. 13 Performance Specifications.............................................................. 14 Hydraulic Specifications................................................................ 14 Manifold Component Specifications....................................................... 15 Hydraulic Hose and Fitting Torque Specifications........................................ 16 SAE and Metric Fastener Torque Chart.................................................... 18 Scheduled Maintenance Procedures............................................................ 19 Pre-delivery Preparation................................................................ 20 Maintenance Inspection Report........................................................... 23 Checklist A Procedures.................................................................. 25 A-1 Inspect the Manuals and Decals.................................................. 25 A-2 Perform Pre-operation Inspection................................................ 26 A-3 Perform Function Tests.......................................................... 26 A-4 Perform 30 Day Service.......................................................... 26 A-5 Hydraulic Suction Strainer...................................................... 27 Checklist B Procedures.................................................................. 28 B-1 Inspect the Battery............................................................. 28 B-2 Inspect the Electrical Wiring................................................... 29 B-3 Inspect the Tires and Wheels ................................................... 30 B-4 Test the Emergency Stop......................................................... 31 B-5 Test the Horn................................................................... 31 B-6 Test the Key Switch............................................................. 32 B-7 Test the Drive Brakes........................................................... 33 B-8 Test the Drive Speed - Stowed Position.......................................... 34 B-9 Test the Drive Speed - Raised Position.......................................... 35 B-10 Test the Flashing Beacon (if equipped)......................................... 36 B-11 Test the Motion Alarm.......................................................... 37 B-12 Perform Hydraulic Oil Analysis................................................. 38 B-13 Inspect the Breather Cap....................................................... 38 B-14 Inspect the Rear Axle Free-wheeling............................................ 39 B-15 Inspect the Lateral Offset of the Mast......................................... 40 B-16 Inspect the Mast Wear Pads..................................................... 41 Checklist C Procedures.................................................................. 42 C-1 Calibrate the Platform Overload System (if equipped)............................ 42 C-2 Replace the Hydraulic Tank Breather Cap - Models with Optional Hydraulic Oil.... 43 Checklist D Procedures.................................................................. 44 D-1 Replace the Hydraulic Tank Return Filter........................................ 44 Checklist E Procedures.................................................................. 45 E-1 Test or Replace the Hydraulic Oil............................................... 45 Repair Procedures........................................................................... 47 Platform Controls....................................................................... 48 1-1 Circuit Boards.................................................................. 48 1-2 Controller Adjustments.......................................................... 49 Platform Components..................................................................... 53 2-1 Platform........................................................................ 53 2-2 Platform Overlaod System........................................................ 54 Jib Components.......................................................................... 56 3-1 Jib Cylinder.................................................................... 56 Mast Components......................................................................... 57 4-1 Mast Assembly................................................................... 57 4-2 Lift Cylinder................................................................... 70 Ground Controls......................................................................... 72 5-1 Level Sensor.................................................................... 72 Hydraulic Pump.......................................................................... 73 6-1 Function Pump................................................................... 73 Function Manifold....................................................................... 76 7-1 Function Manifold Components.................................................... 76 7-2 Valve Adjustments - Function Manifold........................................... 78 Hydraulic Tank.......................................................................... 81 8-1 Hydraulic Tank.................................................................. 81 Turntable Components.................................................................... 82 9-1 Turntable Rotation Motor........................................................ 82 9-2 Battery......................................................................... 84 9-3 Battery Charger................................................................. 85 Steer Axle Components................................................................... 86 10-1 Yoke........................................................................... 86 10-2 Steer Cylinder................................................................. 87 10-3 Steering Rod................................................................... 88 10-4 Steer Angle Sensor............................................................. 88 Non-steer Axle Components............................................................... 90 11-1 Drive Motors................................................................... 90 11-2 Drive Brake.................................................................... 92 Fault Codes................................................................................. 93 Fault Code Chart........................................................................ 95 Schematics..................................................................................107 Electrical Schematic Abbreviation and Wire Color Legends................................108 ECM Pin-out Legend......................................................................109 Limit Switch and Sensor Legend..........................................................110 Electrical Symbols Legend...............................................................111 Electrical Schematic - ANSI.............................................................112 Schematic - GR-26J..................................................................112 Electrical Schematic - CE...............................................................114 Schematic - GR-20J & GR-26J.........................................................114 Hydraulic Symbols Legend................................................................116 Hydraulic Schematic.....................................................................117 Back Cover..................................................................................119
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