JLG 80HX 80HX+6 80HXER Service & Maintenance Manual (3120863) – PDF Download (Eng)

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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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