Factory Service And Maintenance Manual For JLG Boom Lift. Manual Contains Important Information And Instructions For Maintenance Description Of The Functions And Capabilities Of The System. Illustrations, Instructions, Diagrams For Step By Step Remove And Install, Assembly And Disassembly, Service, Inspection, Repair, Troubleshooting, Tune-Ups.

Format: PDF
Language: English
Pages: 530
Number: 3121234 (december 2017)
Bookmarks: Yes
Searchable: Yes
Wiring Diagrams: Yes
Hydraulic Diagrams: Yes

Model

JLG Boom Lift
680S
Prior to SN 0300189341

Contents

-INTRODUCTION – MAINTENANCE SAFETY PRECAUTIONS
General
Hydraulic System Safety
Maintenance
-SPECIFICATIONS
Operating Specifications
Specifications and Performance Data
Capacities
Component Data
Tires
Torque Requirements
Lubrication
Pressure Setting
Major Component Weights
Operator Maintenance
Draining Oil Build Up from the Propane Regulator (Prior to SN 0300134626)
Propane Fuel Filter Replacement
Propane Fuel System Pressure Relief
Serial Number Location
-GENERAL
Machine Preparation, Inspection, and Maintenance
Service and Guidelines
Lubrication and Information
Cylinder Drift
Pins and Composite Bearing Repair Guidelines
Welding on JLG Equipment
-CHASSIS & TURNTABLE
Tires & Wheels
Lockout Cylinder Bleeding
Oscillating Axle Lockout Test (If Equipped)
Emergency Towing
Wheel Drive Assembly, 2WD
Drive Hub (4WD Machines W/ Integral Brake)
Drive Motor – 2WD fPrior to SN 0300083331)
Wheel Drive Assembly
Drive Hub
Drive Brake
Drive Motor (SN 0300183331 through 0300189341)
Re-Aligning Drive Hub Input Coupling
Swing Drive
Swing Hub (Prior to SN 0300134352)
Swing Brake (Prior to SN 0300134352)
Swing Drive Brake
Swing Motor (Prior to SN 0300134352)
Swing Hub (SN 0300134352 through 0300189341)
Swing Motor (SN 0300134352 to 0300189341)
Swing Bearing
Rotary Coupling (Prior to SN 0300137913)
Rotary Coupling (SN 0300137913 through 0300189341)
Generator
Deutz Engine – TD2011L04
Deutz EMR 2
GM Engine General Maintenance
GM Engine Dual Fuel System
GM Engine Fuel System Repair
GM Engine LPG Fuel System Diagnosis
Counterweight
-BOOM & PLATFORM
Platform
Rotator and Slave Cylinder
Main Boom Powertrack
Powertrack Maintenance
Boom Cleanliness Guidelines
Main Boom Assembly
Main Lift Cylinder
Wire Rope
Boom Rope Torqueing Procedures
Elevation & Capacity Switches
Electronic Platform Leveling
Rotary Actuator
Load Sensing Device
Skyguard
-BASIC HYDRAULICS INFORMATION & SCHEMATICS
Lubricating 0-Rings in the Hydraulic System
Hydraulic Cylinders
Pressure Setting Procedure
Start Up Procedures
Piston Pump (Prior to SN 0300180778)
Piston Pump (SN 0300180778 Through 0300189341)
Hydraulic Schematics
-JLG CONTROL SYSTEM
JLG Control System Analyzer Kit Instructions
Machine Personality Settings and Function Speeds
Machine Orientation When Doing Speed Tests
CANBUS Communications
-BASIC ELECTRICAL INFORMATION & SCHEMATICS
General
Multimeter Basics
Applying Silicone Dielectric Compound to Electrical Connections
AMP Connector
Deutsch Connectors
Electrical Component
Electrical Schematics