JLG 80HX 80HX+6 80HXER Service & Maintenance Manual (3120863) – PDF Download
TABLE OF CONTENTS:
JLG 80HX 80HX+6 80HXER Service & Maintenance Manual (3120863) – PDF Download
Section A. INTRODUCTION - MAINTENANCE SAFETY PRECAUTIONS...................... 3 A General................................................................. 3 B Hydraulic System Safety................................................. 3 C Maintenance............................................................. 3 Section 1. specifications.....................................................11 1.1 Capacities............................................................11 1.2 Component Data........................................................11 1.3 Performance Data......................................................12 1.4 Torque Requirements...................................................14 1.5 Lubrication...........................................................14 1.6 Pressure Settings.....................................................20 1.7 Major Components Weights..............................................21 1.8 Cylinder Specifications...............................................21 1.9 Boom Tape.............................................................21 1.10 Critical Stability Weights...........................................21 1.11 Serial Number Location...............................................22 Section 2. procedures.........................................................23 2.1 General...............................................................23 2.2 Servicing and Maintenance Guidelines..................................23 2.3 Lubrication Information...............................................24 2.4 Cylinders - Theory Of Operation.......................................26 2.5 Valves - Theory Of Operation..........................................26 2.6 Boom Chains (See Figure 2-2.).........................................28 2.7 Wear Pads.............................................................31 2.8 Cylinder Checking Procedure...........................................31 2.9 Cylinder Repair.......................................................33 2.10 Cylinder Removal and Installation....................................41 2.11 Telescope Cylinder Eccentric Bushing.................................43 2.12 Boom Maintenance.....................................................43 2.13 Tilt Alarm Switch....................................................50 2.14 Limit Switch Adjustments.............................................51 2.15 Throttle Checks and Adjustments - Deutz Engine (See Figure 2-16.)....52 2.16 Pressure Setting Procedures..........................................54 2.17 Racine Proportional Air Gap Adjustment...............................54 2.18 Swing Bearing........................................................66 2.19 Torque Hub (See Figure 2-33.)........................................69 2.20 Drive Brake, Ausco - Machines Built Prior to 1992....................77 2.21 Drive Brake, Mico - Machines Built From 1992 to Present..............79 2.22 Controllers..........................................................82 2.23 Oscillating Axle Bleeding Procedure..................................82 2.24 Oscillating Axle Lockout Test........................................83 2.25 Basket Rotator Brake.................................................83 2.26 Free Wheeling Option.................................................84 2.27 Spark Arrestor Mufflers..............................................84 2.28 Footswitch Adjustment................................................84 2.29 Hydraulic Pump W/Hayes Pump Drive Coupling Lubrication...............84 2.30 Dual Fuel System.....................................................84 2.31 Preventive Maintenance and Inspection Schedule.......................85 2.32 Capacity Indicator...................................................88 Section 3. troubleshooting....................................................89 3.1 General...............................................................89 3.2 Troubleshooting Information...........................................89 3.3 Hydraulic Circuit Checks..............................................89
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