JLG 601S Boom Lift Service Manual
220 pages · Publication 3120866
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- Models
- 601S
- Manual type
- Service Manual
- Pages
- 220
- Publication
- 3120866
- Condition
- Brand new

What's inside
From the manual's own table of contents: 283 sections, 355 entries. See sample pages (PDF, 626 KB)
Maintenance1 topic
- Capacities
Engine Crankcase1 topic
- Component Data
Hydraulic Filter - In-line1 topic
- Performance Data
Wheel base1 topic
- Function Speeds
Show all 283 sections
Test Notes2 topics
- Torque Requirements
- Lubrication
Lubrication Specifications6 topics
- Pressure Settings
- Cylinder Specifications
- Major Component Weights
- Critical Stability Weights
- Serial Number Locations
- Machine Preparation, Inspection, and Maintenance
Preventative Maintenance1 topic
- Service and Guidelines
Lubrication and Servicing1 topic
- Lubrication and Information
Changing Hydraulic Oil1 topic
- Cylinder Drift Test
Cylinder Drift2 topics
- Pins and Composite Bearing Repair Guidelines
- Welding on JLG Equipment
Do NOT Do the Following When Welding on JLG Equipment2 topics
- Applying Silicone Dielectric Compound to Electrical Connections
- AMP Connector
Service - Voltage Reading1 topic
- Torque Hub, Drive
Repair2 topics
- Torque Hub, Drive (Auburn Gear)
- Drive Brake - Ausco
Inspection1 topic
- Drive Brake - Mico
Bleeding1 topic
- Drive Motor (Prior to S/N 85132)
Testing and Setup2 topics
- Drive Motor Adjustment Procedure (Prior to S/N 85132)
- Drive Motor (S/N 85132 to Present)
Initial Start-up Procedures1 topic
- Free Wheeling Option
To Engage Drive Motors and Brakes (Normal Operation)1 topic
- Oscillating Axle Bleeding Procedure and Lockout Test
Oscillating Axle Lockout Test2 topics
- Steer Adjustments
- Swing Hub
Adjustment Procedures1 topic
- Swing Bearing
Swing Bearing Torque Values2 topics
- Swing Brake - Ausco
- Swing Motor
Motor Timing1 topic
- Tilt Alarm Switch (Machines with External Tilt Sensor)
Manual Adjustment2 topics
- Spark Arrester Cleaning Instructions
- Dual Fuel System
Changing from LP Gas to Gasoline1 topic
- Electric Governor Installation and Adjustments - Ford Engine
Single-Turn Adjustment (Gain, Factory Adjust)1 topic
- Throttle Checks and Adjustments - Deutz Engine (Prior to S/N 61306)
Failure Modes2 topics
- Automatic Choke Adjustment - Ford Engine
- Cold Weather Starting Difficulty
Checking the Ignition2 topics
- Checking the Fuel
- Ford EFI Engine (machines after S/N 58209)
Fuel System1 topic
- Boom Maintenance
Installation1 topic
- Boom Rope Torquing Procedures
Torque Procedures1 topic
- Wear Pads
Main Boom1 topic
- Wire Rope
Additional Replacement Criteria3 topics
- Limit Switches and Cam Valve Adjustment
- Rotator - Helac
- Drive Card Setup Procedures
Flow Control Card2 topics
- Foot Switch Adjustment
- Cylinders - Theory of Operation
Systems Incorporating Holding Valves1 topic
- Valves - Theory of Operation
Relief Valves1 topic
- Cylinder Checking Procedure
Cylinders With Dual Counterbalance Valves2 topics
- Cylinder Repair
- Cylinder Removal and Installation
Boom Lift Cylinder Installation1 topic
- Variable Displacement pump (M46 series)
Minor Repair and Replacement1 topic
- Pressure Setting Procedures
Wheel Steer (If Equipped)15 topics
- Directional Control Valve
- Hydraulic Pump W/Hayes Pump Drive Coupling Lubrication
- Hydraulic Component Start-Up Procedures and Recommendations
- Introduction
- To Connect the JLG Control System Analyzer
- Using the Analyzer
- Changing the Access Level of the Hand Held Analyzer
- Adjusting Parameters Using the Hand Held Analyzer
- Machine Setup
- Level Vehicle Description
- Machine Personality Settings
- Analyzer Diagnostics Menu Structure
- General
- Troubleshooting
- Hydraulic Circuit Checks
Inside this manual
Real pages from this service manual (220 pages). Open the sample pages (PDF, 624 KB)
- Specifications, page 17: SECTION 1 - SPECIFICATIONS
- Diagram, page 200: SECTION 6 - JLG CONTROL SYSTEM (ADE)
- Troubleshooting, page 209: SECTION 6 - JLG CONTROL SYSTEM (ADE)
- Color page, page 180: SECTION 6 - JLG CONTROL SYSTEM (ADE)
- Color page, page 108: SECTION 3 - CHASSIS & TURNTABLE
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 601S are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
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This is a service manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 220 pages
Quantity one is the manual described above.
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60-day returns
Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy
Other editions and similar models
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).