JLG 600A Use and care manual

ANSI
®
Operation and Safety Manual
Original Instructions - Keep this manual with the machine at all times.
Boom Lift Models
600A
600AJ
S/N 0300177361 &
B300001393
to Present
3121615
January 7, 2016

NOTE: This manual also applies to a machine with the following
Serial Number: 0300176207.

FOREWORD
3121615 – JLG Lift – a
FOREWORD
This manual is a very important tool! Keep it with the machine at all times.
The purpose of this manual is to provide owners, users, operators, lessors, and lessees with the precautions and operating
procedures essential for the safe and proper machine operation for its intended purpose.
Due to continuous product improvements, JLG Industries, Inc. reserves the right to make specification changes without
prior notification. Contact JLG Industries, Inc. for updated information.

FOREWORD
b– JLG Lift – 3121615
SAFETY ALERT SYMBOLS AND SAFETY SIGNAL WORDS
INDICATES AN IMMINENTLY HAZARDOUS SITUATION. IF NOT AVOIDED, WILL
RESULT IN SERIOUS INJURY OR DEATH. THIS DECAL WILL HAVE A RED BACK-
GROUND.
INDICATES A POTENTIALLY HAZARDOUS SITUATION. IF NOT AVOIDED, COULD
RESULT IN SERIOUS INJURY OR DEATH. THIS DECAL WILL HAVE AN ORANGE BACK-
GROUND.
INDICATES A POTENTIALLY HAZARDOUS SITUATION. IF NOT AVOIDED, MAY RESULT
IN MINOR OR MODERATE INJURY. IT MAY ALSO ALERT AGAINST UNSAFE PRACTICES.
THIS DECAL WILL HAVE A YELLOW BACKGROUND.
INDICATES INFORMATION OR A COMPANY POLICY THAT RELATES DIRECTLY OR INDI-
RECTLY TO THE SAFETY OF PERSONNEL OR PROTECTION OF PROPERTY.
This is the Safety Alert Symbol. It is used to alert you to the potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury or
death

FOREWORD
3121615 – JLG Lift – c
THIS PRODUCT MUST COMPLY WITH ALL SAFETY RELATED BULLETINS. CONTACT JLG
INDUSTRIES, INC. OR THE LOCAL AUTHORIZED JLG REPRESENTATIVE FOR INFORMA-
TION REGARDING SAFETY-RELATED BULLETINS WHICH MAY HAVE BEEN ISSUED FOR
THIS PRODUCT.
JLG INDUSTRIES, INC. SENDS SAFETY RELATED BULLETINS TO THE OWNER OF
RECORD OF THIS MACHINE. CONTACT JLG INDUSTRIES, INC. TO ENSURE THAT THE
CURRENT OWNER RECORDS ARE UPDATED AND ACCURATE.
JLG INDUSTRIES, INC. MUST BE NOTIFIED IMMEDIATELY IN ALL INSTANCES WHERE
JLG PRODUCTS HAVE BEEN INVOLVED IN AN ACCIDENT INVOLVING BODILY INJURY
OR DEATH OF PERSONNEL OR WHEN SUBSTANTIAL DAMAGE HAS OCCURRED TO PER-
SONAL PROPERTY OR THE JLG PRODUCT.
Contact:
Product Safety and Reliability Department
JLG Industries, Inc.
13224 Fountainhead Plaza
Hagerstown, MD 21742
USA
or Your Local JLG Office
(See addresses on inside of manual cover)
In USA:
Toll Free: 877-JLG-SAFE (877-554-7233)
Outside USA:
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
For:
• Accident Reporting
• Product Safety Publica-
tions
• Current Owner Updates
• Questions Regarding
Product Safety
• Standards and Regulations
Compliance Information
• Questions Regarding Special
Product Applications
• Questions Regarding Prod-
uct Modifications

FOREWORD
d– JLG Lift – 3121615
REVISION LOG
Original Issue - November 6, 2013
Revised - January 1, 2014
Revised - July 4, 2014
Revised - October 1, 2014
Revised - January 5, 2015
Revised - January 7, 2016

3121615 – JLG Lift – i
SECTION - PARAGRAPH, SUBJECT PAGE SECTION - PARAGRAPH, SUBJECT PAGE
TABLE OF CONTENTS
SECTION - 1 - SAFETY PRECAUTIONS
1.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 PRE-OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Operator Training and Knowledge . . . . . . . . . . . . . . . . . 1-1
Workplace Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Machine Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.3 OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Trip and Fall Hazards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Electrocution Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Tipping Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Crushing and Collision Hazards . . . . . . . . . . . . . . . . . . 1-10
1.4 TOWING, LIFTING, AND HAULING. . . . . . . . . . . . . . . . . . . . 1-11
1.5 MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Maintenance Hazards. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Battery Hazards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
SECTION - 2 - USER RESPONSIBILITIES, MACHINE PREPARATION,
AND INSPECTION
2.1 PERSONNEL TRAINING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Operator Training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Training Supervision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Operator Responsibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2 PREPARATION, INSPECTION, AND MAINTENANCE . . . . . 2-2
Pre-Start Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Function Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
SkyGuard Function Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2.3 LIMIT SWITCH FUNCTIONAL CHECK. . . . . . . . . . . . . . . . . . . 2-7
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
SECTION - 3 - MACHINE CONTROLS AND INDICATORS
3.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2 CONTROLS AND INDICATORS . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Ground Control Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Ground Control Indicator Panel . . . . . . . . . . . . . . . . . . 3-10
Platform Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Platform Control Indicator Panel . . . . . . . . . . . . . . . . . 3-18
SECTION - 4 - MACHINE OPERATION
4.1 DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.2 OPERATING CHARACTERISTICS AND LIMITATIONS . . . . 4-1
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.3 ENGINE OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Starting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Shutdown Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Fuel Reserve / Shut-Off System. . . . . . . . . . . . . . . . . . . . . 4-5
4.4 TRAVELING (DRIVING) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Traveling Forward and Reverse . . . . . . . . . . . . . . . . . . . . 4-8
Traveling on a Grade. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

ii – JLG Lift – 3121615
TABLE OF CONTENTS
SECTION - PARAGRAPH, SUBJECT PAGE SECTION - PARAGRAPH, SUBJECT PAGE
4.5 STEERING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
4.6 PLATFORM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Platform Level Adjustment . . . . . . . . . . . . . . . . . . . . . . . 4-10
Platform Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
4.7 BOOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Swinging the Boom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Raising and Lowering the Tower Boom. . . . . . . . . . . . 4-11
Raising and Lowering the Main Boom . . . . . . . . . . . . . 4-12
Telescoping the Main Boom . . . . . . . . . . . . . . . . . . . . . . 4-12
4.8 RE-SYNCHRONIZE THE LOWER LIFT CYLINDER . . . . . . . 4-13
Level Override Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
4.9 MACHINE SAFETY SYSTEM OVERRIDE (MSSO)
(CE ONLY). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
4.10 SKYGUARD OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
4.11 SHUT DOWN AND PARK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
4.12 OSCILLATING AXLE LOCKOUT TEST (IF EQUIPPED) . . . 4-17
4.13 STEER/TOW SELECTOR (IF EQUIPPED). . . . . . . . . . . . . . . . 4-17
4.14 TOWING (IF EQUIPPED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
4.15 AUXILIARY POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Activating from the Platform Control Station . . . . . . 4-21
Activating from the Ground Control Station . . . . . . . 4-21
4.16 DUAL FUEL SYSTEM (GAS ENGINE ONLY) . . . . . . . . . . . . 4-22
Changing From Gasoline to LP Gas. . . . . . . . . . . . . . . . 4-22
Changing From LP Gas to Gasoline. . . . . . . . . . . . . . . . 4-22
4.17 TIE DOWN AND LIFTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23
SECTION - 5 - EMERGENCY PROCEDURES
5.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.2 INCIDENT NOTIFICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.3 EMERGENCY OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Operator Unable to Control Machine. . . . . . . . . . . . . . . 5-1
Platform or Boom Caught Overhead . . . . . . . . . . . . . . . 5-2
5.4 EMERGENCY TOWING PROCEDURES. . . . . . . . . . . . . . . . . . 5-2
5.5 MACHINE SAFETY SYSTEM OVERRIDE (MSSO)
(CE ONLY). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

3121615 – JLG Lift – iii
SECTION - PARAGRAPH, SUBJECT PAGE SECTION - PARAGRAPH, SUBJECT PAGE
TABLE OF CONTENTS
SECTION - 6 - GENERAL SPECIFICATIONS & OPERATOR
MAINTENANCE
6.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.2 OPERATING SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Engine Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Tires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Hydraulic Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Critical Stability Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Serial Number Locations . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
6.3 OPERATOR MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
6.4 TIRES & WHEELS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27
Tire Inflation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27
Tire Damage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27
Tire Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
Wheel Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
Wheel Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
6.5 OSCILLATING AXLE LOCKOUT TEST (IF EQUIPPED). . . . 6-30
6.6 PROPANE FUEL FILTER REPLACEMENT . . . . . . . . . . . . . . . 6-31
Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-31
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32
6.7 PROPANE FUEL SYSTEM PRESSURE RELIEF . . . . . . . . . . . 6-32
6.8 SUPPLEMENTAL INFORMATION . . . . . . . . . . . . . . . . . . . . . 6-33
SECTION - 7 - INSPECTION AND REPAIR LOG

iv – JLG Lift – 3121615
TABLE OF CONTENTS
SECTION - PARAGRAPH, SUBJECT PAGE SECTION - PARAGRAPH, SUBJECT PAGE
This Page Left Blank Intentionally.