JLG 340AJ Operator Manual
Operation and Safety Manual
®
Original Instructions - Keep this manual with the machine at all times.
Boom Lift Models
340AJ
ANSI
3121258
January 2, 2013
FOREWORD
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.
3121258 – JLG Lift – a
FOREWORD
IMPORTANT
SAFETY ALERT SYMBOLS AND SAFETY SIGNAL WORDS
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
INDICATES AN IMMINENTLY HAZARDOUS SITUATION. IF NOT
AVOIDED, WILL RESULT IN SERIOUS INJURY OR DEATH. THIS DECAL
WILL HAVE A RED BACKGROUND.
INDICATES A POTENTIALLY HAZARDOUS SITUATION. IF NOT
AVOIDED, COULD
DECAL WILL HAVE AN ORANGE BACKGROUND.
RESULT IN SERIOUS INJURY OR DEATH. THIS
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 INDIRECTLY TO THE SAFETY OF PERSONNEL OR PROTECTION OF PROPERTY.
b – JLG Lift – 3121258
THIS PRODUCT MUST COMPLY WITH ALL SAFETY RELATED BULLE-
IMPORTANT
IMPORTANT
TINS. CONTACT JLG INDUSTRIES, INC. OR THE LOCAL AUTHORIZED
JLG REPRESENTATIVE FOR INFORMATION REGARDING SAFETYRELATED BULLETINS WHICH MAY HAVE BEEN ISSUED FOR THIS
PRODUCT.
For:
• Accident Reporting
• Product Safety Publications
• Current Owner Updates
• Questions Regarding
Product Safety
FOREWORD
• Standards and Regulations
Compliance Information
• Questions Regarding Special Product Applications
• Questions Regarding Product Modifications
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 PERSONAL 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:
3121258 – JLG Lift – c
Phone: 240-420-2661
Fax: 301-745-3713
E-mail: ProductSafety@JLG.com
FOREWORD
REVISION LOG
Original Issue - June 17, 2010
Revised - December 20, 2010
Revised - March 17, 2011
Revised - May 16, 2012
Revised - January 2, 2013
d – JLG Lift – 3121258
TABLE OF CONTENTS
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 . . . . . . . . . . . . . . . . . . . . . . 1-2
1.3 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Trip and Fall Hazards . . . . . . . . . . . . . . . . . . . . . 1-3
Electrocution Hazards . . . . . . . . . . . . . . . . . . . . 1-4
Tipping Hazards . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Crushing and Collision Hazards. . . . . . . . . . . . . 1-7
1.4 TOWING, LIFTING, AND HAULING . . . . . . . . . . . . .1-8
1.5 ADDITIONAL HAZARDS / SAFETY . . . . . . . . . . . . .1-9
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
Function Check. . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
2.3 OSCILLATING AXLE LOCKOUT TEST
(IF EQUIPPED). . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
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 . . . . . . . . . . . . . 3-6
Platform Station . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Platform Control Indicator Panel . . . . . . . . . . . . 3-12
SECTION - 4 - MACHINE OPERATION
4.1 DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.2 BOOM OPERATING CHARACTERISTICS AND
LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.3 ENGINE OPERATION . . . . . . . . . . . . . . . . . . . . . . . 4-2
Starting Procedure . . . . . . . . . . . . . . . . . . . . . . . 4-2
Shutdown Procedure . . . . . . . . . . . . . . . . . . . . . 4-3
Fuel Reserve / Shut-Off System (Gas or Diesel
Engines Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4.3 TRAVELING (DRIVING) . . . . . . . . . . . . . . . . . . . . . . 4-6
Traveling Forward and Reverse . . . . . . . . . . . . . 4-8
3121258 – JLG Lift – i
TABLE OF CONTENTS
SECTION - PARAGRAPH, SUBJECT PAGE SECTION - PARAGRAPH, SUBJECT PAGE
4.4 STEERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
4.5 PLATFORM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Platform Level Adjustment . . . . . . . . . . . . . . . . . 4-8
Platform Rotation . . . . . . . . . . . . . . . . . . . . . . . . 4-8
4.6 BOOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Swinging the Boom . . . . . . . . . . . . . . . . . . . . . . 4-9
Raising and Lowering the Tower Boom . . . . . 4-10
Raising and Lowering the Main Boom . . . . . . 4-10
Telescoping the Main Boom . . . . . . . . . . . . . . 4-10
4.7 FUNCTION SPEED CONTROL . . . . . . . . . . . . . . . 4-10
4.8 DUAL FUEL SYSTEM (GAS ENGINE ONLY) . . . . 4-10
Changing From Gasoline to LP Gas . . . . . . . . 4-10
Changing From LP Gas to Gasoline . . . . . . . . 4-11
4.9 SHUT DOWN AND PARK . . . . . . . . . . . . . . . . . . . 4-11
Shut Down and Park . . . . . . . . . . . . . . . . . . . . 4-11
Storage Position. . . . . . . . . . . . . . . . . . . . . . . . 4-14
4.10 LIFTING AND TIE DOWN. . . . . . . . . . . . . . . . . . . . 4-14
Lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Tie Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
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 AUXILIARY DESCENT SYSTEM. . . . . . . . . . . . . . . .5-2
5.5 MANUAL SWING OVERRIDE . . . . . . . . . . . . . . . . . .5-2
5.6 EMERGENCY TOWING PROCEDURES . . . . . . . . .5-4
SECTION - 6 - GENERAL SPECIFICATIONS & OPERATOR
MAINTENANCE
6.1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
6.2 OPERATING SPECIFICATIONS AND PERFORMANCE
DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Operating Specifications . . . . . . . . . . . . . . . . . . 6-1
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Engine Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Hydraulic Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Major Component Weights. . . . . . . . . . . . . . . . . 6-9
6.3 OPERATOR MAINTENANCE . . . . . . . . . . . . . . . . .6-13
6.4 TIRES & WHEELS . . . . . . . . . . . . . . . . . . . . . . . . .6-18
Tire Replacement . . . . . . . . . . . . . . . . . . . . . . . 6-18
Wheel and Tire Replacement . . . . . . . . . . . . . . 6-19
Wheel Installation . . . . . . . . . . . . . . . . . . . . . . . 6-19
ii – JLG Lift – 3121258
TABLE OF CONTENTS
SECTION - PARAGRAPH, SUBJECT PAGE SECTION - PARAGRAPH, SUBJECT PAGE
6.5 SUPPLEMENTAL INFORMATION . . . . . . . . . . . . .6-20
SECTION - 7 - INSPECTION AND REPAIR LOG
LIST OF FIGURES
2-1. Basic Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . .2-7
2-2. Daily Walk-Around Inspection - Sheet 1 of 3 . . . . . .2-8
2-3. Daily Walk-Around Inspection - Sheet 2 of 3 . . . . . .2-9
2-4. Daily Walk-Around Inspection - Sheet 3 of 3 . . . . .2-10
3-1. Ground Control Station . . . . . . . . . . . . . . . . . . . . . .3-3
3-2. Ground Control Indicator Panel. . . . . . . . . . . . . . . .3-7
3-3. Platform Control Console. . . . . . . . . . . . . . . . . . . . .3-9
3-4. Platform Control Indicator Panel . . . . . . . . . . . . . .3-13
4-1. Position of Least Forward Stability . . . . . . . . . . . . .4-4
4-2. Position of Least Backward Stability . . . . . . . . . . . .4-5
4-3. Grade and Side Slopes . . . . . . . . . . . . . . . . . . . . . .4-7
4-4. Stowed Position . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
4-5. Storage Position. . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
4-6. Lifting and Tie Down Chart . . . . . . . . . . . . . . . . . .4-15
4-7. Decal Location Sheet 1 of 10. . . . . . . . . . . . . . . . .4-16
4-8. Decal Location Sheet 2 of 10. . . . . . . . . . . . . . . . .4-17
4-9. Decal Location Sheet 3 of 10. . . . . . . . . . . . . . . . .4-18
4-10. Decal Location Sheet 4 of 10. . . . . . . . . . . . . . . . .4-19
4-11. Decal Location Sheet 5 of 10. . . . . . . . . . . . . . . . .4-20
4-12. Decal Location Sheet 6 of 10 . . . . . . . . . . . . . . . . 4-21
4-13. Decal Location Sheet 7 of 10 . . . . . . . . . . . . . . . . 4-22
4-14. Decal Location Sheet 8 of 10 . . . . . . . . . . . . . . . . 4-23
4-15. Decal Location Sheet 9 of 10 . . . . . . . . . . . . . . . . 4-24
4-16. Decal Location Sheet 10 of 10 . . . . . . . . . . . . . . . 4-25
5-1. Auxiliary Descent Decal and Hand Pump . . . . . . . 5-3
6-1. Oil Sampling Port . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
6-2. Hydraulic Oil Operation Chart - Sheet 1 of 2 . . . . . 6-7
6-3. Hydraulic Oil Operation Chart - Sheet 2 of 2 . . . . . 6-8
6-4. Engine Oil Operation Chart - GM . . . . . . . . . . . . . 6-10
6-5. Engine Oil Operation Chart - Kubota . . . . . . . . . . 6-11
6-6. Operator Maintenance and Lubrication Diagram. 6-12
3121258 – JLG Lift – iii
TABLE OF CONTENTS
SECTION - PARAGRAPH, SUBJECT PAGE SECTION - PARAGRAPH, SUBJECT PAGE
LIST OF TABLES
1-1 Minimum Approach Distances (M.A.D.) . . . . . . . . . 1-5
1-2 Beaufort Scale (For Reference Only) . . . . . . . . . . 1-10
2-1 Inspection and Maintenance Table . . . . . . . . . . . . . 2-3
6-1 Operating Specifications . . . . . . . . . . . . . . . . . . . . .6-1
6-2 Dimensional Data. . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6-3 Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6-4 Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6-5 Kubota D1105-E3. . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6-6 GM 0.97L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
6-7 Hydraulic Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
6-8 Critical Stability Weights . . . . . . . . . . . . . . . . . . . . . 6-9
6-9 Lubrication Specifications. . . . . . . . . . . . . . . . . . . 6-13
6-10 Wheel Torque Chart. . . . . . . . . . . . . . . . . . . . . . . . 6-20
7-1 Inspection and Repair Log . . . . . . . . . . . . . . . . . . .7-1
iv – JLG Lift – 3121258
SECTION 1 - SAFETY PRECAUTIONS
SECTION 1. SAFETY PRECAUTIONS
1.1 GENERAL
This section outlines the necessary precautions for proper
and safe machine operation and maintenance. For proper
machine use, it is mandatory that a daily routine 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 followed to ensure the
machine is safe to operate.
The owner/user/operator/lessor/lessee of the machine shall
not operate the machine 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.
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
• Read and understand this manual before operating the
machine.
• Do not operate this machine until complete training is performed by authorized persons.
• Only authorized and qualified personnel can operate the
machine.
3121258 – JLG Lift – 1-1
SECTION 1 - SAFETY PRECAUTIONS
• Read, understand, and obey all DANGERS, WARNINGS,
CAUTIONS, and operating instructions on the machine
and in this manual.
• Use the machine in a manner which is within the scope of
its intended application set by JLG.
• All operating personnel must be familiar with the emergency 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
operation of the machine.
Workplace Inspection
• The operator is to take safety measures to avoid all hazards in the work area prior to machine operation.
• Do not operate or raise the platform while on trucks, trailers, railway cars, floating vessels, scaffolds or other equipment unless approved in writing by JLG.
• Do not operate the machine in hazardous environments
unless approved for that purpose by JLG.
• Be sure that the ground conditions are able to support the
maximum load shown on the decals located on the
machine.
Machine Inspection
• Before machine operation, perform inspections and functional checks. Refer to Section 2 of this manual for
detailed instructions.
• Do not operate this machine until it has been serviced and
maintained according to requirements specified in the
Service and Maintenance Manual.
• Be sure the footswitch and all other safety devices are
operating properly. Modification of these devices is a
safety violation.
MODIFICATION OR ALTERATION OF AN AERIAL WORK PLATFORM
SHALL BE MADE ONLY WITH WRITTEN PERMISSION FROM THE MANUFACTURER
• Do not operate any machine on which safety or instruction
placards or decals are missing or illegible.
• Avoid any buildup of debris on the platform floor. Keep
mud, oil, grease, and other slippery substances from footwear and platform floor.
1-2 – JLG Lift – 3121258
SECTION 1 - SAFETY PRECAUTIONS
1.3 OPERATION
General
• Do not use the machine for any purpose other than positioning personnel, their tools, and equipment.
• Never operate a machine that is not working properly. If a
malfunctions occurs, shut down the machine.
• 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. Operate controls with slow and even pressure.
• 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. Contact
JLG for approved material handling accessories.
• When two or more persons are in the platform, the operator 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.
• Supplies or tools which extend outside the platform are
prohibited unless approved by JLG.
• When driving, always position boom over rear axle in line
with the direction of travel. Remember, if boom is over the
front axle, steer and drive functions will be reversed.
• Do not assist a stuck or disabled machine by pushing,
pulling, or by using boom functions. Only pull the unit
from the tie-down lugs on the chassis.
• Do not place boom or platform against any structure to
steady the platform or to support the structure.
• Stow boom and shut off all power before leaving machine.
Trip and Fall Hazards
During operation, occupants in the platform must wear a full
body harness with a lanyard attached to an authorized lanyard anchorage point. Attach only one (1) lanyard per lanyard anchorage point.
3121258 – JLG Lift – 1-3
SECTION 1 - SAFETY PRECAUTIONS
• Before operating the machine, make sure all gates are
closed and fastened in their proper position.
• Keep both feet firmly positioned on the platform floor at all
times. Never use ladders, boxes, steps, planks, or similar
items on platform to provide additional reach.
• Never use the boom assembly to enter or leave the platform.
• Use extreme caution when entering or leaving platform.
Be sure that the boom is fully lowered. It may be necessary to telescope out to position the platform closer to the
ground for entry/exit. Face the machine, maintain “three
point contact” with the machine, using two hands and one
foot or two feet and one hand during entry and exit.
Electrocution Hazards
• This machine is not insulated and does not provide protection from contact or proximity to electrical current.
1-4 – JLG Lift – 3121258
SECTION 1 - SAFETY PRECAUTIONS
Table 1-1. Minimum Approach Distances (M.A.D.)
• Maintain distance from electrical lines, apparatus, or any
energized (exposed or insulated) parts according to the
Minimum Approach Distance (MAD) as shown in Table 1-
1.
• Allow for machine movement and electrical line swaying.
Voltage Range
(Phase to Phase)
0 to 50 KV 10 (3)
Over 50KV to 200 KV 15 (5)
Over 200 KV 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.
• 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 carrying up
to 50,000 volts. One foot additional clearance is required for
every additional 30,000 volts or less.
MINIMUM APPROACH DISTANCE
in Feet (Meters)
3121258 – JLG Lift – 1-5
SECTION 1 - SAFETY PRECAUTIONS
• The minimum approach distance may be reduced if insulating 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 dimensions 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
• The user must be familiar with the surface before driving.
Do not exceed the allowable sideslope and grade while
driving.
1-6 – JLG Lift – 3121258
SECTION 1 - SAFETY PRECAUTIONS
• Do not elevate platform or drive with platform elevated
while on a sloping, uneven, or soft surface.
• Before driving on floors, bridges, trucks, and other surfaces, check allowable capacity of the surfaces.
• Never exceed the maximum platform capacity. Distribute
loads evenly on platform floor.
• Do not raise the platform or drive from an elevated position unless the machine is on firm, level and smooth surfaces.
• Keep the chassis of the machine at least 2 ft. (0.6m) from
holes, bumps, drop-offs, obstructions, debris, concealed
holes, and other potential hazards on the floor/surface.
• Do not push or pull any object with the boom.
• Never attempt to use the machine as a crane. Do not tieoff machine to any adjacent structure.
• Do not elevate the machine when wind conditions exceed
28 mph (12.5 m/s). Refer to Table 1-2, Beaufort Scale (For
Reference Only).
• Do not increase the surface area of the platform or the
load. Increase of the area exposed to the wind will
decrease stability.
• Do not increase the platform size with unauthorized deck
extensions or attachments.
• If boom assembly or platform is in a position that one or
more wheels are off the ground, all persons must be
removed before attempting to stabilize the machine. Use
cranes, forklift trucks, or other appropriate equipment to
stabilize machine.
Crushing and Collision Hazards
• Approved head gear must be worn by all operating and
ground personnel.
• Check work area for clearances overhead, on sides, and
bottom of platform when lifting or lowering platform, and
driving.
• During operation, keep all body parts inside platform railing.
3121258 – JLG Lift – 1-7
SECTION 1 - SAFETY PRECAUTIONS
• Use the boom functions, not the drive function, to position
the platform close to obstacles.
• Always post a lookout when driving in areas where vision
is obstructed.
• Keep non-operating personnel at least 6 ft. (1.8m) away
from machine during all driving and swing operations.
• Limit travel speed according to conditions of ground surface, congestion, visibility, slope, location of personnel,
and other factors which may cause collision or injury to
personnel.
• Be aware of stopping distances in all drive speeds. When
driving in high speed, switch to low speed before stopping. 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 persons in the platform.
• Be sure that operators of other overhead and floor level
machines are aware of the aerial work platform’s presence. Disconnect power to overhead cranes.
• Warn personnel not to work, stand, or walk under a raised
boom or platform. Position barricades on floor if 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/unloading. Refer to the Emergency Procedures section of this
manual for emergency towing procedures.
• Ensure boom is in the stowed position and the turntable
locked prior to towing, lifting or hauling. The platform must
be completely empty of tools.
• When lifting machine, lift only at designated areas of the
machine. Lift the unit with equipment of adequate capacity.
• Refer to the Machine Operation section of this manual for
lifting information.
1-8 – JLG Lift – 3121258
SECTION 1 - SAFETY PRECAUTIONS
1.5 ADDITIONAL HAZARDS / SAFETY
• Do not use machine as a ground for welding.
• When performing welding or metal cutting operations,
precautions must be taken to protect the chassis from
direct exposure to weld and metal cutting spatter.
• Do not refuel the machine with the engine running.
• Battery fluid is highly corrosive. Avoid contact with skin
and clothing at all times.
• Charge batteries only in a well ventilated area.
3121258 – JLG Lift – 1-9
SECTION 1 - SAFETY PRECAUTIONS
DO NOT OPERATE THE MACHINE WHEN WIND CONDITIONS EXCEED 28
MPH (12.5 M/S).
Table 1-2. Beaufort Scale (For Reference Only)
Beaufort
Number
0 0 0-0.2 Calm Calm. Smoke rises vertically
1 1-3 0.3-1.5 Light air Wind motion visible in smoke
2 4-7 1.6-3.3 Light breeze Wind felt on exposed skin. Leaves r ustle
3 8-12 3.4-5.4 Gentle breeze Leaves and smaller twigs in constant motion
4 13-18 5.5-7.9 Moderate breeze Dust and loose paper raised. Small branches begin to move.
5 19-24 8.0-10.7 Fresh breeze Smaller trees sway.
6 25-31 10.8-13.8 Strong breeze Large branches in motion. Whistling heard in overhead wires.
7 32-38 13.9-17.1 Near Gale/Moderate Gale Whole trees in motion. Effor t needed to walk against the wind.
8 39-46 17.2-20.7 Fresh Gale Twigs broken from trees. Cars veer on road.
9 47-54 20.8-24.4 Strong Gale Light structure damage.
Wind Speed
mph m/s
Description Land Conditions
Umbrella use becomes difficult.
1-10 – JLG Lift – 3121258
SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
SECTION 2. USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
2.1 PERSONNEL TRAINING
The aerial platform is a personnel handling device; so it is
necessary that it be operated and maintained only by trained
personnel.
Persons under the influence of drugs or alcohol or who are
subject to seizures, dizziness or loss of physical control must
not operate this machine.
Operator Training
Operator training must cover:
1. Use and limitations of the controls in the platform and at
the ground, emergency controls and safety systems.
2. Control labels, instructions, and warnings on the
machine.
3. Rules of the employer and government regulations.
4. Use of approved fall protection device.
5. Enough knowledge of the mechanical operation of the
machine to recognize a malfunction or potential malfunction.
6. The safest means to operate the machine where overhead obstructions, other moving equipment, and obstacles, depressions, holes, or drop-offs exist.
7. Means to avoid the hazards of unprotected electrical
conductors.
8. Specific job requirements or machine application.
Training Supervision
Training must be done under the supervision of a qualified
person in an open area free of obstructions until the trainee
has developed the ability to safely control and operate the
machine.
Operator Responsibility
The operator must be instructed that he/she has the responsibility and authority to shut down the machine in case of a
malfunction or other unsafe condition of either the machine
or the job site.
3121258 – JLG Lift – 2-1
SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
2.2 PREPARATION, INSPECTION, AND MAINTENANCE
The following table covers the periodic machine inspections
and maintenance required by JLG Industries, Inc. Consult
local regulations for further requirements for aerial work platforms. The frequency of inspections and maintenance must
be increased as necessary when the machine is used in a
harsh or hostile environment, if the machine is used with
increased frequency, or if the machine is used in a severe
manner.
JLG INDUSTRIES, INC. RECOGNIZES A FACTORY-TRAINED SERVICE
TECHNICIAN AS A PERSON WHO HAS SUCCESSFULLY COMPLETED
THE JLG SERVICE TRAINING SCHOOL FOR THE SPECIFIC JLG PRODUCT
MODEL.
2-2 – JLG Lift – 3121258
SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
Table 2-1. Inspection and Maintenance Table
Type Frequency
Primary
Responsibility
Pre-Start Inspection Before using each day; or
whenever there’s an Operator change.
Pre-Delivery Inspection
(See Note)
Freque nt Inspec tion
(See Note)
Annual Machine Inspection
(See Note)
Preventative Maintenance At intervals as specified in the Service and Main-
NOTE: Inspection forms are available from JLG. Use the Service and Maintenance Manual to perform inspections.
Before each sale, lease, or rental delivery. Owner, Dealer, or User Qualified JLG
In service for 3 months or 150 hours, whichever
comes first; or
Out of service for a period of more than 3 months;
or
Purchased used.
Annually, no later than 13 months from the date of
prior inspection.
tenance Manual.
User or Operator User or Operator Operator and Safety Manual
Owner, Dealer, or User Qualified JLG
Owner, Dealer, or User Factory-Trained
Owner, Dealer, or User Qualified JLG
Service
Qualification
Mechanic
Mechanic
Service Technician
(Recommended)
Mechanic
Reference
Service and Maintenance
Manual and applicable JLG
inspection form
Service and Maintenance
Manual and applicable JLG
inspection form
Service and Maintenance
Manual and applicable JLG
inspection form
Service and Maintenance
Manual
3121258 – JLG Lift – 2-3
SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
Parent Metal Crack Weld Crack
Pre-Start Inspection
The Pre-Start Inspection should include each of the following:
1. Cleanliness – Check all surfaces for leakage (oil, fuel,
or battery fluid) or foreign objects. Report any leakage to
the proper maintenance personnel.
2. Structure - Inspect the machine structure for dents,
damage, weld or parent metal cracks or other discrepancies.
3. Decals and Placards – Check all for cleanliness and
legibility. Make sure none of the decals and placards are
missing. Make sure all illegible decals and placards are
cleaned or replaced.
4. Operation and Safety Manuals – Make sure a copy of
the Operator and Safety Manual, AEM Safety Manual
(ANSI markets only), and ANSI Manual of Responsibilities (ANSI markets only) is enclosed in the weather
resistant storage container.
5. “Walk-Around” Inspection – Refer to Figure 2-2.
6. Battery – Charge as required.
7. Fuel (Combustion Engine Powered Machines) – Add the
proper fuel as necessary.
8. Engine Oil Supply - Ensure the engine oil level is at the
Full mark on the dipstick and the filler cap is secure.
9. Hydraulic Oil – Check the hydraulic oil level. Ensure
hydraulic oil is added as required.
10. Accessories/Attachments - Reference the Operator
and Safety Manual of each attachment or accessory
installed upon the machine for specific inspection, operation, and maintenance instructions.
2-4 – JLG Lift – 3121258
SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
11. Function Check – Once the “Walk-Around” Inspection
is complete, perform a functional check of all systems in
an area free of overhead and ground level obstructions.
Refer to Section 4 for more specific operating instructions.
IF THE MACHINE DOES NOT OPERATE PROPERLY, TURN OFF THE
MACHINE IMMEDIATELY! REPORT THE PROBLEM TO THE PROPER
MAINTENANCE PERSONNEL. DO NOT OPERATE THE MACHINE UNTIL IT
IS DECLARED SAFE FOR OPERATION.
Function Check
Perform the Function Check as follows:
1. From the ground control console with no load in the
platform:
a. Check that all guards protecting the switches or
locks are in place;
b. Operate all functions and ensure proper operation;
c. Check auxiliary descent and ensure proper opera-
tion;
d. Ensure that all machine functions are disabled
when the Emergency Stop Button is pushed in.
e. Ensure all boom functions stop when the function
enable switch is released.
3121258 – JLG Lift – 2-5
SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
2. From the platform control console:
a. Ensure that the control console is firmly secured in
the proper location;
b. Check that all guards protecting the switches or
locks are in place;
c. Operate all functions and ensure proper operation;
d. Ensure that all machine functions are disabled
when the Emergency Stop Button is pushed in.
e. Ensure that all machine functions stop when the
footswitch is released.
3. With the platform in the stowed position:
a. Drive the machine on a grade, not to exceed the
rated gradeability, and stop to ensure the brakes
hold;
b. Check that the tilt indicator is illuminated to ensure
proper operation.
4. Swing the boom over either of the rear tires and ensure
that the Drive Orientation indicator illuminates and that
the Drive Orientation Override switch must be used for
the drive function to operate.
2-6 – JLG Lift – 3121258
SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
1
2
3
4
5
6
7
8
10
11
9
15
14
13
12
Figure 2-1. Basic Nomenclature
1. Platform
2. Platform Console
3. Jib
4. Fly Boom Section
5. Base Boom Section
6. Main Lift Cylinder
7. Master Cylinder
8. Upper Upright
9. Lower Upright
10. Tower Lift Cylinder
11. Tower Boom
12. Front Drive/Steer Wheels
13. Rear Drive Wheels
14. Frame
15. Turntable
3121258 – JLG Lift – 2-7
SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
1
2
15
8
8
8
3
5
6
7
9
8
13
6
5
2
8
12
10
5
6
4
7
6
5
11
14
Figure 2-2. Daily Walk-Around Inspection - Sheet 1 of 3
2-8 – JLG Lift – 3121258
SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
General
Begin the "Walk-Around Inspection" at Item 1, as noted on
the diagram. Continue checking each item in sequence for
the conditions listed in the following checklist.
TO AVOID POSSIBLE INJURY, BE SURE MACHINE POWER IS OFF.
DO NOT OPERATE MACHINE UNTIL ALL MALFUNCTIONS HAVE BEEN
CORRECTED.
INSPECTION NOTE: On all components, make sure there
are no loose or missing parts, that they are securely fastened, and no visible damage, leaks or excessive wear
exists in addition to any other criteria mentioned.
1. Platform Assembly and Gate - Footswitch works
properly, not modified, disabled or blocked. Latch and
hinges in working condition.
2. Platform & Ground Control Consoles - Switches and
levers return to neutral, decals/placards secure and
legible, control markings legible.
3. Boom Sections/Uprights/Turntable - See Inspection
Note.
4. Swing Motor and Worm Gear - No evidence of damage.
5. Wheel/Tire Assemblies - Properly secured, no missing lug nuts. Inspect for worn tread, cuts, tears or other
discrepancies. Inspect wheels for damage and corrosion.
6. Drive Motor, Brake, and Hub - No evidence of leakage.
7. Hood Assemblies - See Inspection Note.
8. All Hydraulic Cylinders - No visible damage; pivot
pins and hydraulic hoses undamaged, not leaking.
9. Turntable Bearing - Evidence of proper lubrication.
No evidence of loose bolts or looseness between
bearing and machine.
10. Tie Rod Ends and Steering Spindles - See Inspection Note.
Figure 2-3. Daily Walk-Around Inspection - Sheet 2 of 3
3121258 – JLG Lift – 2-9
SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
11. Hydraulic Pump - See Inspection Note.
12. Fuel Tank - See Inspection Note.
13. Hydraulic Reservoir - See Inspection Note.
14. Battery - Batteries have proper electrolyte level;
cables tight; see Inspection Note.
15. Platform Rotator - See Inspection Note.
Figure 2-4. Daily Walk-Around Inspection - Sheet 3 of 3
2-10 – JLG Lift – 3121258
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