Oshkosh Corporation JLG 3394RT Use and care manual

Operation and Safety Manual
Original Instructions, keep this manual with the machine at all times.
ANSI
®
Model
3394RT
4394RT
P/N - 3121132
November 30, 2010

FOREWORD
3121132 – 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 – 3121132
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 BACKGROUND.
INDICATES A POTENTIALITY HAZARDOUS SITUATION. IF NOT
AVOIDED, COULD RESULT IN SERIOUS INJURY OR DEATH. THIS
DECAL WILL HAVE AN ORANGE BACKGROUND.
INDICATES A POTENTIALITY 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.
NOTICE
INDICATES INFORMATION OR A COMPANY POLICY THAT RELATES
DIRECTLY OR INDIRECTLY TO THE SAFETY OF PERSONNEL OR PRO-
TECTION 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
3121132 – JLG Lift – c
THIS PRODUCT MUST COMPLY WITH ALL SAFETY RELATED BULLE-
TINS. CONTACT JLG INDUSTRIES, INC. OR THE LOCAL AUTHORIZED
JLG REPRESENTATIVE FOR INFORMATION REGARDING SAFETY-
RELATED BULLETINS WHICH MAY HAVE BEEN ISSUED FOR THIS
PRODUCT.
NOTICE
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.
NOTICE
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 PERSONAL
PROPERTY OR THE JLG PRODUCT.
Contact:
Product Safety and Reliability Department
JLG Industries, Inc.
13224 Fountainhead Plaza
Hagerstown, MD 21742
or Your Local JLG Office
(See addresses on manual rear cover)
In USA:
Tol l Fr ee : 8 77- JL G-S AF E (8 77-5 54 -7 23 3)
Outside USA:
Phone: [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 Spe-
cial Product Applications
•Questions Regarding Prod-
uct Modifications

FOREWORD
d– JLG Lift – 3121132
REVISION LOG
Original Issue - April 11, 2002
Revised - July 12, 2002
Revised - July 18, 2003
Revised - February 18, 2004
Revised - August 6, 2004
Revised - December 21, 2004
Revised - July 15, 2005
Revised - February 28, 2006
Revised - March 29, 2007
Revised - May 22, 2008
Revised - September 30, 2008
Revised - November 30, 2010

TABLE OF CONTENTS
3121132 – JLG Lift – i
SECTION - PARAGRAPH, SUBJECT PAGE SECTION - PARAGRAPH, SUBJECT PAGE
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. . . . . . . . . . . . . 1-8
1.4 TOWING, LIFTING, AND HAULING . . . . . . . . . . . . .1-9
1.5 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Maintenance Hazards. . . . . . . . . . . . . . . . . . . . 1-10
Battery Hazards . . . . . . . . . . . . . . . . . . . . . . . . 1-10
SECTION - 2 - USER RESPONSIBILITIES, MACHINE PREPA-
RATION 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
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Function Check . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
2.3 LOCKOUT CYLINDER TEST. . . . . . . . . . . . . . . . . . 2-9
2.4 DUAL FUEL SYSTEM (IF EQUIPPED) . . . . . . . . . 2-10
SECTION - 3 - USER RESPONSIBILITIES AND MACHINE CON-
TROL
3.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2 OPERATING CHARACTERISTICS AND
LIMITATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Placards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.3 CONTROLS AND INDICATORS . . . . . . . . . . . . . . . 3-2
Ground Control Station (See Figure 3-1) . . . . . . 3-3
Platform Control Station (See Figure 3-2). . . . . . 3-6
Indicator Control Panel (See Figure 3-3) . . . . . 3-10

TABLE OF CONTENTS
ii – JLG Lift – 3121132
SECTION - PARAGRAPH, SUBJECT PAGE SECTION - PARAGRAPH, SUBJECT PAGE
SECTION - 4 - MACHINE OPERATION
4.1 DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.2 ENGINE OPERATION . . . . . . . . . . . . . . . . . . . . . . . 4-1
Platform/Ground Select Switch . . . . . . . . . . . . . 4-1
Emergency Stop Switch . . . . . . . . . . . . . . . . . . 4-1
Speed Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Starting Procedure . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.3 OPERATING CHARACTERISTICS. . . . . . . . . . . . . . 4-3
Leveling Jacks . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Auto Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Manual Level Adjustment (Trim) . . . . . . . . . . . . 4-4
Power Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Auxiliary Power. . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Lift. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
4.4 DUAL FUEL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . 4-5
4.5 RAISING AND LOWERING . . . . . . . . . . . . . . . . . . . 4-6
Raising . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Lowering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4.6 PLATFORM EXTENSION. . . . . . . . . . . . . . . . . . . . . 4-7
4.7 STEERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4.8 TRAVELING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Traveling Forward . . . . . . . . . . . . . . . . . . . . . . . 4-8
Traveling in Reverse. . . . . . . . . . . . . . . . . . . . . . 4-8
4.9 PARKING AND STOWING . . . . . . . . . . . . . . . . . . .4-10
4.10 PLATFORM LOADING . . . . . . . . . . . . . . . . . . . . . .4-10
4.11 SAFETY PROP . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
4.12 TIE DOWN/LIFT LUGS . . . . . . . . . . . . . . . . . . . . . .4-11
Tie Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
4.13 TOWING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
SECTION - 5 - EMERGENCY PROCEDURES
5.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
5.2 EMERGENCY TOWING PROCEDURES . . . . . . . . .5-1
5.3 EMERGENCY CONTROLS AND THEIR
LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
Emergency Stop Switch . . . . . . . . . . . . . . . . . . . 5-2
Ground Control Station . . . . . . . . . . . . . . . . . . . 5-2
Manual Descent . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5.4 EMERGENCY OPERATION . . . . . . . . . . . . . . . . . . .5-3
Use of Ground Controls . . . . . . . . . . . . . . . . . . . 5-3
Operator Unable to Control Machine . . . . . . . . . 5-3
Platform Caught Overhead. . . . . . . . . . . . . . . . . 5-3
Righting of Tipped Machine . . . . . . . . . . . . . . . . 5-3
Post-Incident Inspection . . . . . . . . . . . . . . . . . . . 5-3
5.5 INCIDENT NOTIFICATION . . . . . . . . . . . . . . . . . . . .5-4
SECTION - 6 - GENERAL SPECIFICATIONS AND OPERATOR

TABLE OF CONTENTS
3121132 – JLG Lift – iii
SECTION - PARAGRAPH, SUBJECT PAGE SECTION - PARAGRAPH, SUBJECT PAGE
MAINTENANCE
6.1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
6.2 SUPPLEMENTAL INFORMATION . . . . . . . . . . . . . .6-1
6.3 OPERATING SPECIFICATIONS . . . . . . . . . . . . . . . .6-2
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Critical Stability Weights . . . . . . . . . . . . . . . . . . . 6-6
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
6.4 OPERATOR MAINTENANCE . . . . . . . . . . . . . . . . .6-15
6.5 TIRES AND WHEELS . . . . . . . . . . . . . . . . . . . . . . .6-20
Tire Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
Tire Replacement . . . . . . . . . . . . . . . . . . . . . . . 6-21
Wheel Replacement . . . . . . . . . . . . . . . . . . . . . 6-21
Wheel Installation . . . . . . . . . . . . . . . . . . . . . . . 6-21
6.6 DRAINING OIL BUILD UP FROM THE PROPANE
REGULATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-22
6.7 PROPANE FUEL FILTER REPLACEMENT. . . . . . .6-24
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
6.8 PROPANE FUEL SYSTEM PRESSURE RELIEF . . 6-26
6.9 PROPANE FUEL SYSTEM LEAK TEST . . . . . . . . 6-26
SECTION - 7 - INSPECTION AND REPAIR LOG

TABLE OF CONTENTS
iv – JLG Lift – 3121132
SECTION - PARAGRAPH, SUBJECT PAGE SECTION - PARAGRAPH, SUBJECT PAGE
LIST OF FIGURES
2-1. Walk Around Inspection Diagram . . . . . . . . . . . . . . 2-5
2-2. Walk Around Inspection Points - Sheet 1 of 2 . . . . 2-6
2-3. Walk Around Inspection Points - Sheet 2 of 2 . . . . 2-7
3-1. Ground Control Station . . . . . . . . . . . . . . . . . . . . . . 3-2
3-2. Platform Control Station . . . . . . . . . . . . . . . . . . . . . 3-5
3-3. Indicator Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3-4. Decal Location - Sheet 1 of 2 (ANSI) . . . . . . . . . . 3-11
3-5. Decal Location - Sheet 2 of 2 (ANSI) . . . . . . . . . . 3-12
3-6. Decal Installation - Sheet 1 of 2 (CE/AUS) . . . . . . 3-16
3-7. Decal Installation - Sheet 2 of 2 (CE/AUS) . . . . . . 3-17
4-1. Grade and Sideslope . . . . . . . . . . . . . . . . . . . . . . . 4-9
4-2. Lifting and Tie Down Chart (Sheet 1 of 2). . . . . . . 4-12
4-3. Lifting and Tie Down Chart (Sheet 2 of 2). . . . . . . 4-13
6-1. Engine Operating Temperature Specifications -
Deutz - Sheet 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . 6-8
6-2. Engine Operating Temperature Specifications -
Deutz - Sheet 2 of 2 . . . . . . . . . . . . . . . . . . . . . . . 6-9
6-3. Engine Operating Temperature Specifications -
Ford - Sheet 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . 6-10
6-4. Engine Operating Temperature Specifications -
Ford - Sheet 2 of 2 . . . . . . . . . . . . . . . . . . . . . . . 6-11
6-5. Engine Operating Temperature Specifications -
GM - Sheet 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . . 6-12
6-6. Engine Operating Temperature Specifications -
GM - Sheet 2 of 2 . . . . . . . . . . . . . . . . . . . . . . . . 6-13
6-7. Operator Maintenance and Lubrication Diagram .6-14
6-8. Filter Lock Assembly . . . . . . . . . . . . . . . . . . . . . . .6-24
LIST OF TABLES
1-1 Minimum Approach Distances (M.A.D.). . . . . . . . . 1-6
2-1 Inspection and Maintenance Table . . . . . . . . . . . . 2-3
2-2 Maximum Cutout Height . . . . . . . . . . . . . . . . . . . . 2-8
2-3 Tilt Cutout Settings . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
3-1 Decal Location Legend - ANSI . . . . . . . . . . . . . . . 3-13
3-2 Decal Legend - CE/AUS. . . . . . . . . . . . . . . . . . . . 3-18
4-1 Platform Capacities . . . . . . . . . . . . . . . . . . . . . . . 4-10
6-1 Operating Specifications . . . . . . . . . . . . . . . . . . . . 6-2
6-2 Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6-3 Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6-4 Tire Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
6-5 Ford LRG-425 Specifications . . . . . . . . . . . . . . . . . 6-4
6-6 Deutz F3M2011 Specifications. . . . . . . . . . . . . . . . 6-5
6-7 GM 3.0L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
6-8 Critical Stability Weights. . . . . . . . . . . . . . . . . . . . . 6-6
6-9 Hydraulic Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
6-10 Lubrication Specifications . . . . . . . . . . . . . . . . . . . 6-7
6-11 Wheel Torque Chart . . . . . . . . . . . . . . . . . . . . . . . 6-22
7-1 Inspection and Repair Log . . . . . . . . . . . . . . . . . . . 7-1

SECTION 1 - SAFETY PRECAUTIONS
3121132 – JLG Lift – 1-1
SECTION 1. SAFETY PRECAUTIONS
1.1 GENERAL
This section outlines the necessary precautions for proper
and safe machine usage and maintenance. In order to pro-
mote proper machine usage, it is mandatory that a daily rou-
tine is established based on the content of this manual. A
maintenance program, using the information provided in this
manual and the Service and Maintenance Manual, must also
be established by a qualified person and must be followed to
ensure that the machine is safe to operate.
The owner/user/operator/lessor/lessee of the machine
should not accept operating responsibility until this manual
has been read, training is accomplished, and operation of
the machine has been completed under the supervision of
an experienced and qualified operator.
These sections contain the responsibilities of the owner,
user, operator, lessor, and lessee concerning safety, training,
inspection, maintenance, application, and operation.If there
are any questions with regard to safety, training, inspection,
maintenance, application, and operation, please contact JLG
Industries, Inc. (“JLG”).
FAILURE TO COMPLY WITH THE SAFETY PRECAUTIONS LISTED IN
THIS MANUAL COULD RESULT IN MACHINE DAMAGE, PROPERTY
DAMAGE, PERSONAL INJURY OR DEATH.
1.2 PRE-OPERATION
Operator Training and Knowledge
•The Operators and Safety Manual must be read in its
entirety before operating the machine. For clarification,
questions, or additional information regarding any por-
tions of this manual, contact JLG Industries, Inc.

SECTION 1 - SAFETY PRECAUTIONS
1-2 – JLG Lift – 3121132
•An operator must not accept operating responsibilities
until adequate training has been given by competent and
authorized persons.
•Allow only those authorized and qualified personnel to
operate the machine who have demonstrated that they
understand the safe and proper operation and mainte-
nance of the unit.
•Read, understand, and obey all DANGERS, WARNINGS,
CAUTIONS, and operating instructions on the machine
and in this manual.
•Ensure that the machine is to be used in a manner which
is within the scope of its intended application as deter-
mined by JLG.
•All operating personnel must be familiar with the emer-
gency controls and emergency operation of the machine
as specified in this manual.
•Read, understand, and obey all applicable employer,
local, and governmental regulations as they pertain to
your utilization and application of the machine.
Workplace Inspection
•Precautions to avoid all hazards in the work area must be
taken by the user before operation of the machine.
•Do not operate or raise the platform from a position on
trucks, trailers, railway cars, floating vessels, scaffolds or
other equipment unless the application is approved in
writing by JLG.
•Before operation, check work area for overhead hazards
such as electric lines, bridge cranes, and other potential
overhead obstructions.
• Check floor surfaces for holes, bumps, drop-offs, obstruc-
tions, debris, concealed holes, and other potential haz-
ards.
•Check the work area for hazardous locations. Do not
operate the machine in hazardous environments unless
approved for that purpose by JLG.
•Ensure that the ground conditions are adequate to sup-
port the maximum tire load indicated on the tire load
decals located on the chassis adjacent to each wheel.
•Do not operate the machine when wind conditions exceed
28 mph (12.5 m/s).
•This machine can be operated in nominal ambient tem-
peratures of 0° F to 104° F (-20° C to 40° C). Consult JLG
to optimize operation outside of this temperature range.

SECTION 1 - SAFETY PRECAUTIONS
3121132 – JLG Lift – 1-3
Machine Inspection
•Do not operate this machine until the inspections and
functional checks have been performed as specified in
Section 2 of this manual.
•Do not operate this machine until it has been serviced and
maintained according to the maintenance and inspection
requirements as specified in the machine’s Service and
Maintenance Manual.
•Ensure all safety devices are operating properly. Modifica-
tion of these devices is a safety violation.
MODIFICATION OR ALTERATION OF AN AERIAL WORK PLATFORM
SHALL BE MADE ONLY WITH PRIOR WRITTEN PERMISSION FROM THE
MANUFACTURER.
•Do not operate any machine on which the safety or
instruction placards or decals are missing or illegible.
•Check the machine for modifications to original compo-
nents. Ensure that any modifications have been approved
by JLG.
•Avoid accumulation of debris on platform deck. Keep
mud, oil, grease, and other slippery substances from foot-
wear and platform deck.
1.3 OPERATION
General
•Do not use the machine for any purpose other than posi-
tioning personnel, their tools, and equipment.
•Before operation, the user must be familiar with the
machine capabilities and operating characteristics of all
functions.
•Never operate a malfunctioning machine. If a malfunction
occurs, shut down the machine. Remove the unit from
service and notify the proper authorities.
•Do not remove, modify, or disable any safety devices.
•Never slam a control switch or lever through neutral to an
opposite direction. Always return switch to neutral and
stop before moving the switch to the next function. Oper-
ate controls with slow and even pressure.
•Hydraulic cylinders, other than the outrigger cylinders,
should never be left at end of travel (fully extended or fully
retracted) before shutdown or for long periods of time.
Always “bump” control in opposite direction slightly when
function reaches end of travel. This applies both to
machines in operation or in the stowed position.

SECTION 1 - SAFETY PRECAUTIONS
1-4 – JLG Lift – 3121132
•Do not allow personnel to tamper with or operate the
machine from the ground with personnel in the platform,
except in an emergency.
•Do not carry materials directly on platform railing unless
approved by JLG.
•When two or more persons are in the platform, the opera-
tor shall be responsible for all machine operations.
•Always ensure that power tools are properly stowed and
never left hanging by their cord from the platform work
area.
•Do not assist a stuck or disabled machine by pushing or
pulling except by pulling at the chassis tie-down lugs.
•Stow scissor arm assembly and shut off all power before
leaving machine.
Trip and Fall Hazards
•JLG Industries, Inc. recommends that all persons in the
platform wear a full body harness with a lanyard attached
to an authorized lanyard anchorage point while operating
this machine. For further information regarding fall protec-
tion requirements on JLG products, contact JLG Indus-
tries, Inc.
•Prior to operation, ensure all gates and rails are fastened
and secured in their proper position. Identify the desig-
nated lanyard anchorage point(s) at the platform and
securely attach the lanyard. Attach only one (1) lanyard
per lanyard anchorage point.

SECTION 1 - SAFETY PRECAUTIONS
3121132 – JLG Lift – 1-5
.
•Keep both feet firmly positioned on the platform floor at all
times. Never position ladders, boxes, steps, planks, or
similar items on unit to provide additional reach for any
purpose.
•Never use the scissor arm assembly to gain access to or
leave the platform.
•Use extreme caution when entering or leaving platform.
Ensure that the scissor arm assembly is fully lowered.
Face the machine when entering or leaving the platform.
Always maintain “three point contact” with the machine,
using two hands and one foot or two feet and one hand at
all times during entry and exit.
•Keep oil, mud, and slippery substances cleaned from foot-
wear and the platform floor.
Electrocution Hazards
•This machine is not insulated and does not provide pro-
tection from contact or proximity to electrical current.

SECTION 1 - SAFETY PRECAUTIONS
1-6 – JLG Lift – 3121132
•Maintain safe clearance from electrical lines, apparatus, or
any energized (exposed or insulated) parts in accordance
with the Minimum Approach Distance (MAD) as specified
in Table 1-1.
•Allow for machine movement and electrical line swaying.
•Maintain a clearance of at least 10 ft. (3m) between any
part of the machine and its occupants, their tools, and
their equipment from any electrical line or apparatus car-
rying up to 50,000 volts. One foot additional clearance is
required for every additional 30,000 volts or less.
Ta bl e 1- 1 .M in i m u m Ap p r oa ch Distances (M.A.D.)
Voltage Range
(Phase to Phase)
MINIMUM APPROACH DISTANCE
in Feet (Meters)
0 to 50KV 10 (3)
Over 50 KV to 200 KV 15 (5)
Over 200KV to 350 KV 20 (6)
Over 350 KV to 500 KV 25 (8)
Over 500 KV to 750 KV 35 (11)
Over 750 KV to 1000 KV 45 (14)
NOTE: This requirement shall apply except where
employer, local or governmental regulations
are more stringent.

SECTION 1 - SAFETY PRECAUTIONS
3121132 – JLG Lift – 1-7
•The minimum approach distance may be reduced if insu-
lating barriers are installed to prevent contact, and the
barriers are rated for the voltage of the line being guarded.
These barriers shall not be part of (or attached to) the
machine. The minimum approach distance shall be
reduced to a distance within the designed working dimen-
sions of the insulating barrier. This determination shall be
made by a qualified person in accordance with the
employer, local, or governmental requirements for work
practices near energized equipment.
DO NOT MANEUVER MACHINE OR PERSONNEL INSIDE PROHIBITED
ZONE (MAD). ASSUME ALL ELECTRICAL PARTS AND WIRING ARE
ENERGIZED UNLESS KNOWN OTHERWISE.
Tipping Hazards
•Ensure that the ground conditions are adequate to sup-
port the maximum tire load indicated on the tire load
decals located on the chassis adjacent to each wheel. Do
not travel on unsupported surfaces.
•The user should be familiar with the driving surface before
driving. Do not exceed the allowable sideslope and grade
while driving.
.
•Do not elevate platform or drive with platform elevated
while on or near a sloping, uneven, or soft surface. Ensure
machine is positioned on a firm uniform surface before
elevating platform or driving with the platform in the ele-
vated position.
•Before driving on floors, bridges, trucks, and other sur-
faces, check allowable capacity of the surfaces.
•Never exceed the maximum platform capacity. Keep all
loads within the confines of the platform, unless autho-
rized by JLG.

SECTION 1 - SAFETY PRECAUTIONS
1-8 – JLG Lift – 3121132
•Keep the chassis of the machine a minimum of 0.6m (2 ft.)
from holes, bumps, drop-offs, obstructions, debris, con-
cealed holes, and other potential hazards at the ground
level.
•Never attempt to use the machine as a crane. Do not tie-
off machine to any adjacent structure. Never attach wire,
cable, or any similar items to platform.
•Do not cover the platform sides or carry large surface-area
items in the platform when operating outdoors. The addi-
tion of such items increases the exposed wind area of the
machine.
•Do not increase the platform size with unauthorized deck
extensions or attachments.
•If scissor arm assembly or platform is caught so that one
or more wheels are off the ground, all persons must be
removed before attempting to free the machine. Use
cranes, forklift trucks, or other appropriate equipment to
stabilize machine and remove personnel.
Crushing and Collision Hazards
•Approved head gear must be worn by all operating and
ground personnel.
•Keep hands and limbs out of the scissor arm assembly
during operation.
•Watch for obstructions around machine and overhead
when driving. Check clearances above, on sides, and bot-
tom of platform when lifting or lowering platform.
•During operation, keep all body parts inside platform rail-
ing.
•Always post a lookout when driving in areas where vision
is obstructed.
•Keep non-operating personnel at least 6 ft. (1.8 m ) away
from machine during all driving operations.
•Under all travel conditions, the operator must limit travel
speed according to conditions of ground surface, conges-
tion, visibility, slope, location of personnel, and other fac-
tors causing hazards of collision or injury to personnel.

SECTION 1 - SAFETY PRECAUTIONS
3121132 – JLG Lift – 1-9
•Be aware of stopping distances in all drive speeds. When
driving in high speed, switch to low speed before stop-
ping. Travel grades in low speed only.
•Do not use high speed drive in restricted or close quarters
or when driving in reverse.
•Exercise extreme caution at all times to prevent obstacles
from striking or interfering with operating controls and per-
sons in the platform.
•Ensure that operators of other overhead and floor level
machines are aware of the aerial work platform’s pres-
ence. Disconnect power to overhead cranes. Barricade
floor area if necessary.
•Avoid operating over ground personnel. Warn personnel
not to work, stand, or walk under a raised platform. Posi-
tion barricades on floor as necessary.
1.4 TOWING, LIFTING, AND HAULING
•Never allow personnel in platform while towing, lifting, or
hauling.
•This machine should not be towed, except in the event of
emergency, malfunction, power failure, or loading/unload-
ing. Refer to Emergency Procedures section of this man-
ual for emergency towing procedures.
•Ensure platform is fully retracted and completely empty of
tools prior to towing, lifting or hauling.
•When lifting machine with a forklift, position forks only at
designated areas of the machine. Lift with a forklift of ade-
quate capacity.
•Refer to the Machine Operation section of this manual for
lifting and tie-down procedures.
1.5 MAINTENANCE
General
This section contains general safety precautions which must be
observed during maintenance of this machine. Additional pre-
cautions to be observed during machine maintenance are
inserted at the appropriate points in this maunual and in the Ser-
vice and Maintenance Manual. It is of utmost importance that
maintenance personnel pay strict attention to these precautions
to avoid possible injury to personnel or damage to the machine
or property. A maintenance program must be established by a
qualified person and must be followed.

SECTION 1 - SAFETY PRECAUTIONS
1-10 – JLG Lift – 3121132
Maintenance Hazards
•Shut off power to all controls and ensure that all operating
systems are secured from inadvertent motion prior to per-
forming any adjustments or repairs.
•Never work under an elevated platform until it has been
fully lowered to the full down position, if possible, or other-
wise supported and restrained from movement with
appropriate safety props, blocking, or overhead supports.
•Always relieve hydraulic pressure from all hydraulic cir-
cuits before loosening or removing hydraulic compo-
nents.
•Always disconnect batteries when servicing electrical
components or when performing welding on the machine.
•Shut down the engine (if equipped) while fuel tanks are
being filled.
•Ensure replacement parts or components are identical or
equivalent to original parts or components.
•Never attempt to move heavy parts without the aid of a
mechanical device. Do not allow heavy objects to rest in
an unstable position. Ensure adequate support is pro-
vided when raising components of the machine.
•Remove all rings, watches, and jewelry when performing
any maintenance. Do not wear loose fitting clothing or
long hair unrestrained which may become caught or
entangled in equipment.
•Use only clean approved non-flammable cleaing solvents.
•Never alter, remove, or substitute any items such as coun-
terweights, tires, batteries, platforms or other items that
may reduce or affect the overall weight or stability of the
machine.
•Reference the Service and Maintenance Manual for the
weights of critical stability items.
MODIFICATION OR ALTERATION OF AN AERIAL WORK PLATFORM
SHALL BE MADE ONLY WITH PRIOR WRITTEN PERMISSION FROM THE
MANUFACTURER.
Battery Hazards
•Always disconnect batteries when servicing electrical
components or when performing welding on the machine.
•Do not allow smoking, open flame, or sparks near battery
during charging or servicing.
•Do not contact tools or other metal objects across the bat-
tery terminals.

SECTION 1 - SAFETY PRECAUTIONS
3121132 – JLG Lift – 1-11
•Always wear hand, eye, and face protection when servic-
ing batteries. Ensure that battery acid does not come in
contact with skin or clothing.
BATTERY FLUID IS HIGHLY CORROSIVE. AVOID CONTACT WITH SKIN
AND CLOTHING AT ALL TIMES. IMMEDIATELY RINSE ANY CONTACTED
AREA WITH CLEAN WATER AND SEEK MEDICAL ATTENTION.
•Charge batteries only in a well ventilated area.
•Avoid overfilling the battery fluid level. Add distilled water
to batteries only after the batteries are fully charged.