LGMG AR20J User manual

Operation Manual
AR20J
Articulated Boom
Mobile Elevating Work Platform
△
!WARNING
Before operation and maintenance, the
drivers and service personnel shall
always read and thoroughly understand
all information in this manual. Failure to
do so may result in, fatal accidents or
personal injury.
This manual must be kept with this
machine at all times.
LINGONG HEAVY MACHINERY CO., LTD.

Articulated Boom Mobile Elevating Work Platform
Operation Manual
880*1230 mm sixteen format 8 printed sheet
First edition and printed for the first time in April 2023
Lingong Heavy Machinery Co., Ltd.
Add: F12,Building 3 LushangGuoao Plaza, 9777 Jingshi Road,Lixia District, Jinan,
Shandong, 250000,China
Tel: [phone] Technical service: 86-0531-67605017
Web: www.LGMG.com.cn Sales of accessories: 86-0531-67605016

Operation Manual of Articulated Boom
Mobile Elevating Work Platform
I
Contents
Contents.......................................................................................................I
Foreword....................................................................................................III
Safety Notices...........................................................................................IV
Chapter 1 Safety.........................................................................................1
1.1 Hazards............................................................................................ 3
1.2 Before Operation, Please Ensure that:.............................................. 3
1.3 Classification of Hazards .................................................................. 3
1.4 Intended Use.................................................................................... 3
1.5 Safety Sign Maintenance.................................................................. 3
1.6 Electric Shock Hazard ...................................................................... 4
1.7 Danger of Tip-over............................................................................ 4
1.8 General Safety.................................................................................. 6
1.9 Operating Hazards on Slopes........................................................... 6
1.10 Falling Hazard ................................................................................ 7
1.11 Collision Hazard.............................................................................. 7
1.12 Components Damage Hazard......................................................... 7
1.13 Explosion and Fire Hazards............................................................ 8
1.14 Machine Damage Hazard............................................................... 8
1.15 Danger of Bodily Injury.................................................................... 8
1.16 Battery Safety................................................................................. 8
1.17 Locked After Each Use ................................................................... 9
1.18 Personal Fall Protection.................................................................. 9
1.19 Ground Information......................................................................... 9
Chapter 2 Legend .....................................................................................11
Chapter 3 Label.........................................................................................15
Chapter 4 Overall Machine Parameters ....................................................21
Chapter 5 Control Box...............................................................................29
5.1 GCU ............................................................................................... 31
5.2 PCU................................................................................................ 33
Chapter 6 Pre-operation Inspection...........................................................37

Operation Manual of Articulated Boom
Mobile Elevating Work Platform
II
6.1 Before Performing This Operation, Ensure that .............................. 39
6.2 Basic Principles .............................................................................. 39
6.3 Pre-operation Inspection................................................................. 39
Chapter 7 Workplace Inspection ...............................................................41
7.1 No Operation Is Allowed Unless...................................................... 43
7.2 Basic Principles .............................................................................. 43
7.3 Workplace Inspection...................................................................... 43
Chapter 8 Functional Testing.....................................................................45
8.1 Basic Principles .............................................................................. 47
8.2 At GCU ........................................................................................... 47
8.3 On the Platform .............................................................................. 47
Chapter 9 Operating Instructions...............................................................51
9.1 No Operation is Allowed Unless...................................................... 53
9.2 Basic Principles .............................................................................. 53
9.3 Starting the Engine......................................................................... 53
9.4 Emergency Shutdown..................................................................... 53
9.5 Emergency Power .......................................................................... 54
9.6 Operation on the Ground................................................................ 54
9.7 Operation on the Platform............................................................... 54
9.8 Platform Overload........................................................................... 56
9.9 Machine Not Level.......................................................................... 56
9.10 Red Guard Protective System....................................................... 57
9.11 System Failure.............................................................................. 57
9.12 After Each Use.............................................................................. 59
Chapter 10 Transportation Instructions......................................................61
10.1 Observing the Regulations............................................................ 63
10.2 Brake Release.............................................................................. 63
10.3 Ensuring Transportation Safety..................................................... 63
10.4 Guidance for Lifting....................................................................... 64

Operation Manual of Articulated Boom
Mobile Elevating Work Platform
III
Foreword
You are welcome to purchase and use the elevating work platform produced by LINGONG HEAVY
MACHINERY CO., LTD. This machine is designed according to AS/NZS 1418.10:2011+A1:2017. This
manual introduces the use safety, operation instructions and maintenance of the mobile elevating work
platform.
Getting the best out of your machine is a goal that we pursue together with you, depending on how
familiar you are with it and how carefully and thoroughly it is maintained.
We sincerely hope that you can read through this manual before starting, performing operation and
maintenance for the first time, and be handy about the operation and maintenance introduced therein.
The illustrations and instructions in this manual are correct at the time of publication, but the structure
and performance of our products are constantly improved and perfected. The design, operation and
maintenance instructions are subject to change without notice. Please understand.
For the latest information about the machine and questions about this manual, please consult our
company.
This manual is suitable for mobile elevating work platform. Under no circumstances shall any act or
operation prohibited in this manual be performed. Users shall strictly follow the maintenance interval
specified in this manual and other materials delivered with the product.
This manual should always be kept in the specified location for easy reference. This manual is part of
the machine and should be handed over with it when ownership or use of the machine is transferred. If
the manual is missing, damaged or illegible, please replace it in time!
The copyright of this manual belongs to LINGONG HEAVY MACHINERY CO., LTD., and cannot be
copied or reproduced without the written permission of our company.
△
!WARNING
Operators and maintenance personnel must read, understand and abide by the
safety regulations and operating instructions specified in this manual before
operating and maintaining this machine, otherwise, it may lead to casualties!
Only specially trained and qualified personnel can operate, maintain and repair the
machine.
Improper operation, maintenance and repair are dangerous and may result in injury
or death.
Users shall be familiar with the rated load, and overloading is strictly prohibited. The
users shall be responsible for all the consequences caused by overloading or
unauthorized modification.
The operating procedures and precautions provided in this manual are only
applicable to the specified purposes of this machine. If it is used for operations other
than those specified but not prohibited, make sure that there is no potential safety
hazard.

Operation Manual of Articulated Boom
Mobile Elevating Work Platform
IV
Safety Notices
Operators should understand and follow the current national and local safety regulations, and use the
safety instructions in this manual if there are no corresponding regulations.
Most accidents are caused by the user's violation of the regulations on machine operation and
maintenance. To avoid accidents, please read, understand and comply with all requirements,
precautions and warnings in this manual and machine labels before operation and maintenance.
This manual is not a training manual for elevating work platform operators! All operating instructions are
for professionals who have received elevating work platform relevant training.
Since it is impossible to foresee all possible hazards and accidents, the safety instructions in this manual
cannot include all safety precautions, and other existing safety risks must be taken into account in the
actual operation. If a procedure or operation not recommended in this manual is used, the operator must
carry out a risk assessment and must ensure the safety of himself and others and that no damage is
done to the machine. If the safety of some operations is not certain, please contact our company or
dealer.
If the content of this manual is inconsistent with the standards or laws and regulations issued by the local
government or authorities, please enforce the stricter policy.
The operation and maintenance precautions given in this manual are only applicable to the specified use
of this machine. If the machine is used outside the specified purpose, our company will not assume any
responsibility, and all responsibilities shall be borne by the user and the operator.
In any instance, the prohibited operations in the manual can not be carried out.
The following markers are used to identify safety information in this manual:
△
! DANGER - Indicating any dangers that, if not avoided, will cause serious injury
or even death, and also serious machine damage.
△
! WARNING - Indicating any dangers that, if not avoided, may cause injury,
serious injury or even death, and also serious machine damage.
△
! CAUTION - Indicating dangers that, if not avoided, may cause minor or
moderate injury, and also machine damage or shortened machine service life.

Operation Manual of Articulated Boom
Mobile Elevating Work Platform
1
Chapter 1 Safety

Operation Manual of Articulated Boom
Mobile Elevating Work Platform
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Operation Manual of Articulated Boom
Mobile Elevating Work Platform
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1.1 Hazards
△
! WARNING: Failure to follow the
instructions and safety rules in this
manual may result in serious injury or
death. Alcoholics, drug addicts, and
those taking reaction inhibiting drugs
are strictly prohibited from
approaching and operating the
machine.
1.2 Before Operation, Please
Ensure that:
1) Equipped with PFPE, such as helmet, seat
belt, safety shoes, goggles, protective
gloves, etc., and in good physical condition.
2) You have understood and implemented the
safety rules for machine operations in this
Operation Manual.
3) Know and understand the rules for safe
operation of the machine before proceeding
to the next step.
4) Always perform the check before the
operation.
5) Always perform a functional test before
use.
6) Check the workplace.
7) Use the machine only for specified
purposes.
8) All applicable laws and regulations shall be
read, understood and complied with.
9) Been trained to operate the machine safely.
1.3 Classification of Hazards
Symbols, color codes and symbolic words used
in LGMG products have the following meanings:
1) Safety warning sign - used to warn of
potential personal injuries. Observe all
safety tips at the back of the sign to avoid
possible personal injury or death.
2) Red indicates a dangerous situation. If it is
not avoided, it will lead to death or serious
injury.
3) Orange indicates a dangerous situation. If
not avoided, it may cause death or serious
injury.
4) Yellow indicates a dangerous situation. If
not avoided, it may cause minor or
moderate personal injury.
5) Blue indicates a dangerous situation. If not
avoided, it may result in property loss.
1.4 Intended Use
The use of this machine is limited to lifting
personnel and their tools and materials to
workplaces at heights and it can be used
indoors and outdoors.
△
! WARNING: It is strictly forbidden
to modify the machine without
permission, carry goods, and hang or
lift articles.
1.5 Safety Sign Maintenance
1) Replenish missing and replace damaged
safety sign.
2) Clean the safety sign with neutral cleaning
agent or clean water.

Operation Manual of Articulated Boom
Mobile Elevating Work Platform
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3) Solvent-based cleaners may damage the
safety sign. Do not use solvent-based
cleaners to clean the safety sign.
1.6 Electric Shock Hazard
△
! WARNING: This machine is not
insulated and does not provide shock
protection when in contact with or near
wires, power supplies or electrical
equipment.
1) Please maintain a sufficient safe distance
from the wires, power supplies and power
equipment in accordance with applicable
laws and regulations and the following
table.
Voltage
Required safety
distance
0-50 KV
3.05m
50 KV-200 KV
4.60m
200 KV-350 KV
6.10m
350 KV-500 KV
7.62m
500 KV-750 KV
10.67m
750 KV-1,000 KV
13.72m
△
! CAUTION: The influence of
strong wind or gust on the movement
of the platform, the swing and
relaxation of wires should be
considered.
2) If the machine comes into contact with live
wires, immediately keep away from the
machine.
3) Before cutting off the power supply of wires,
it is forbidden for personnel to come in
contact with or operate the machine.
4) Do not operate and use the machine in
case of lightning or storm.
5) Do not use the machine as a ground wire
during welding.
1.7 Danger of Tip-over
1) The total weight of the personnel,
equipment and materials on the platform
shall not exceed the maximum bearing
capacity of the platform.
2) Never overload the platform.
3) Only when the machine is on solid, flat
ground can the boom be raised and
extended.
4) If the platform is overloaded, the buzzer will
alarm. Please reduce the platform load first.
5) When the platform is raised, the speed of
the machine shall not exceed 0.8 km/h.
6) The tilt sensor cannot be considered as a
level indicator. The buzzer on the rotary
table will only sound when the machine is
heavily tilted.
7) If the buzzer sounds when the platform is
lifted, be very careful, as the Machine not
level indicator lamp will come on and the
drive function will not be available in both
directions. First determine the state of the
boom on the slope, as shown below. Then
lower the boom as follows before moving
the machine to a solid, level ground. Do not
rotate the boom when lowering.