Sinoboom GTZZ14EJ User manual

GTZZ14EJ&16EJ Operation Manual
Preface to GTZZ14EJ&16EJ Operation
Manual
GTZZ14EJ/AB14EJ/AB460EJ
GTZZ16EJ/AB16EJ/AB520EJ
Operation
Manual
Manual No: 503007100002
REV: D
May 2023
Translated version
GTJZ
0608E (2132E)
GTJZ
0808E (2732E)
GTJZ
0808E (2732E)
GTJZ
0808E (2732E)
长沙市宁乡高新技术产业园区金洲大道东
128 号
0731-87116111 hr@sinoboom . c om . cn ww w .sinoboom . c om . cn
Al w ays F or B e t t er A cc ess Solution s
我们一直在追求新的高 度
尺寸 ：
210×285mm
20mm
20mm
产品说明书
PRODU C T MAN U AL

Operating, servicing and maintaining this vehicle or
equipment can expose you to chemicals including engine
exhaust, carbon monoxide, phthalates and lead, which are
known to the State of California to cause cancer and birth
defects or other reproductive harm. To minimize exposure
and avoid breathing exhaust, do not idle the engine
except as necessary, service your vehicle or equipment in
a well-ventilated area and wear gloves or wash your hands
frequently when servicing. For more information, go to:
www.P65warnings.ca.gov.
For disposal, please comply with local regulations.

All of the above are registered trademarks of Hunan Sinoboom
Intelligent Equipment Co., Ltd.
Contact us:
Website:www.sinoboom.com.cn / www.sinoboom.com
Sales Tel:[phone]
Service Tel:[phone]
E-mail:[email protected]/[email protected]
Address: No.128, East Jinzhou Avenue, Ningxiang High-tech Industrial Park, Changsha,
Hunan, China
Postal code:410600
Copyright©Hunan Sinoboom Intelligent Equipment Co., Ltd.
Hunan Sinoboom Intelligent Equipment Co., Ltd. retains the right of final interpretation of the manual.

To Users
Thank you for choosing and using the machine of Hunan Sinoboom In-
telligent Equipment Co., Ltd.
Use this machine only to transport tools to work locations and for
performing tasks on the work platform. Only authorized personnel who
have received appropriate training on MEWP can operate this machine.
Before using the machine, carefully read and fully understand this manual
and strictly follow its relevant instructions. Different countries, regions or
governments may have different regulations for the operation of the
machine, which may conflict with the manual, and in such case, the
stricter operation regulations should be followed. Our company will not be
liable for any adverse consequences arising from the failure to operate
and use the machine in accordance with this manual or relevant
regulations.
This manual provides necessary safety precautions and operation
instructions for users. This manual covers the basic configuration
information of one or more models. Please refer to the information
applicable to your machine model. Consider this manual as a part of the
machine, and always keep the manual with the machine. Without the
written permission of Sinoboom, do not copy, spread, sell or alter the
manual.
Due to continuous improvement and upgrading of product design and
different product models covered, some charts and texts in the manual
may be not applicable to your machine. Our company reserves the right to
revise the manual due to technical improvement, and the manual is
subject to change without further notice. Please contact Sinoboom or its
authorized agent for the latest manual.
Please go to www.sinoboom.com.cn to download your desired Operation
Manual, Maintenance Manual and Parts Manual.
If you have any questions, contact Hunan Sinoboom Intelligent Equip-
ment Co., Ltd.

Manual Revision History:
REV DATE Description Comment
A March 2020 Original issue
BDecember
2021 Updated manual
CNovember
2022
Revised manual, implemented the BS EN 280-
1:2022 standard requirements, revised the logic
description of drive speed selector switch, etc.
DMay 2023 Comprehensively revised manual

Applicable Models
The manual is applicable to machines with the following models and serial
numbers:
Model Metric Trade
ID
Imperial Trade
ID Serial No.
GTZZ14EJ AB14EJ AB460EJ 0300600596 to present
GTZZ16EJ AB16EJ AB520EJ 0300701188 to present
Note:
•Check the machine model and serial number on the machine nameplate, and whose position can be
found in the Decals Diagram section of the Operation Manual.
•Product model is indicated on the nameplate for distinction of products with different main
parameters.
•Product trade identification is indicated on marketing materials and machine decals for distinction of
products with different main parameters, and can be classified as metric type and imperial type: the
metric trade identification is applicable to the machines for countries/regions using metric system or
as specially required by customers; the imperial trade identification is applicable to the machines for
countries/regions using imperial system or as specially required by customers.

GTZZ14EJ&16EJ Operation Manual i©May 2023
CONTENTS
1 Safety Warning Symbols
and Signs .........................1
2 Important Safety Rules .....5
2.1 General ........................... 5
2.2 Preparing for Operation . . . . . . . . . . . 5
2.3 Operation Safety . . . . . . . . . . . . . . . . . . 6
2.4 Towing, Hauling and Lifting
Safety ............................12
2.5 Maintenance Safety . . . . . . . . . . . . . . 13
3 Responsibilities of Rele-
vant Parties .................... 17
3.1 Owner’s (or Lessor’s)
Responsibilities . . . . . . . . . . . . . . . . . . 17
3.2 Employer’s Responsibilities . . . . . .17
3.3 Trainer’s Responsibilities . . . . . . . . 17
3.4 User’s Responsibilities . . . . . . . . . . . 17
4 Technical Parameters ..... 19
4.1 Machine Specifications . . . . . . . . . . 19
4.2 Movement Speed . . . . . . . . . . . . . . . . 23
5 Pre-operation Inspection 25
5.1 Machine Components. . . . . . . . . . . . 25
5.2 Machine Positions. . . . . . . . . . . . . . . . 26
5.3 Pre-start Inspection . . . . . . . . . . . . . . 26
5.4 Functional Test . . . . . . . . . . . . . . . . . . . 27
6 Controls and Indicator
Lights.............................29
6.1 Turntable Controls . . . . . . . . .. . . . . . 29
6.2 Turntable Display . . . . . . . . . . . . . . . . 31
6.3 Platform Controls . . . . . . . . . . . . . . . . 32
6.4 Platform Display. . . . . . . . . . . . . . . . . . 34
7 Operation Instructions.... 37
7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.2 Working Envelope Diagram . . . . . 38
7.3 Stability. . . . . . . . . . . . . .. . . . . . . . . . . . . 40
7.4 Gradeability . . . . . . . . . . . . . . . . . . . . . . 41
7.5 Charging the Battery . . . . . . . . . . . . . 42
7.6 Turntable Rotation . . . . . . . . . . . . . . . 44
7.7 Traveling . . . . . . . . . . . . . . . . . . . . . . . . . 44
7.8 Boom Movements. . . . . . . . . . . . . . . . 46
7.9 Platform Movements . . . . . . . . . . . . . 46
7.10 Transportation and Lifting. . . . . . . 47
7.11 Storage . . . . . . . . . . . . . . . . . . . . . . . . . 48
8 Emergency Procedures .. 51
8.1 Reporting Accidents. . . . . . . . . . . . . . 51
8.2 Emergency Operation. . . . . . . . . . . . 51
8.3 Emergency Lowering . . . . . . . . . . . . 51
8.4 Emergency Towing. . . . . . . . .. . . . . . 52
9 Decals Diagram .............. 53
10 Maintenance................. 61
10.1 Lubrication . . . . . . . . . . . . . . . . . . . . . . 61
10.2 Oil Requirements . . . . . . . . . . . . . . . 62
10.3 Tire Assembly. . . . . . . . . . . . . . . . . . . 63
Check Wheel Fasteners . . . . . . . . . . . . . 63
Replacement Requirements . . . . . . . . . 64
Replace Tire . . . . . . . . . . . . . . . . . . . . . . . . . 64
10.4 Inspection and Preventative
Maintenance Schedule. . . . . . . . . . . 65
Pre-delivery Inspection . . . . . . . . . . . . . .65
Pre-operation Inspection . . . . . . . . . . . . 65
Frequent Inspection . . . . . . . . . . . . . . . . . 65
Annual Machine Inspection . . . . . . . . . . 65
Preventive Maintenance . . . . . . . . . . . . . 66

© May 2023 ii GTZZ14EJ&16EJ Operation Manual
Responsible Persons and Qualifi-
cations for Performing Inspection
and Maintenance . . . . . . . . . . . . . .. . . . . . 66
Inspection and Preventative Main-
tenance Schedule . . . . . . . . . . . . . . . . . . . 66
11 Options ........................ 71
11.1 Secondary Guarding Device . . . . 71
PartsList.............................73
Installation and Removal . . . . . . . . . . . . 74
Instructions for Use . . . . . . . . . . . . . . . . . . 74
Wiring Harness and Schematic
Diagram..............................75
11.2 Pipe Cradle . . . . . . . . . . . . . . . . . . . . . 80
PartsList.............................80
Installation and Removal . . . . . . . . . . . . 81
Instructions for Use . . . . . . . . . . . . . . . . . . 82
11.3 Panel Cradle . . . . . . .. . . . . . . . . . . . . 82
PartsList.............................83
Installation and Removal . . . . . . . . . . . . 84
Instructions for Use . . . . . . . . . . . . . . . . . . 85
11.4 Platform Mesh . . . . . . . . . . . . . . . . . . 85
PartsList.............................86
Installation and Removal . . . . . . . . . . . . 88
Instructions for Use . . . . . . . . . . . . . . . . . . 90

GTZZ14EJ&16EJ Operation Manual 1©May 2023
1SAFETY WARNING SYMBOLS AND
SIGNS
The safety warning symbols used on the machine and in the manuals have the following meanings:
Safety warning symbol. This symbol is used to alert you to potential hazards.
Please observe all safety instructions that follow the symbol to avoid possible
injuries.
Indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury.
Indicates an imminently hazardous situation that, if not avoided, could result in death or serious injury.
Indicates an imminently hazardous situation that, if not avoided, could result in minor or moderate injury.
NOTICE
Indicates information directly or indirectly related to personal safety, machine damage, or property loss.

© May 2023 2GTZZ14EJ&16EJ Operation Manual
SAFETY WARNING SYMBOLS AND SIGNS
The safety signs used on the machine and in the man-
uals have the following meanings:
Read maintenance
manual
Anchor point only for 1
person Wind speed Chemical burns hazard Wedge the wheel
Read operation
manual Add lubricant
Crushing hazard-
Please wear work
shoes
Danger of hot, high-
pressure fluid sprays Wind
Noise level Burns hazard
Keep a safe distance
from high
temperatures
Pull out-ON
Press-OFF Alarm sounds
Depress-ON
Release-OFF
Hydraulic oil level-low
level
Hydraulic oil level-high
level Temperature Replace with tires of
the same specification
Only trained
maintenance
personnel can access
the compartment
Electrocution hazard
on platform
Electrocution hazard
on the ground and
platform
Tipping hazard-Avoid
uneven ground
Tipping hazard-Avoid
uneven ground
Tipping hazard-Never
use machine in strong,
gusty wind
Tipping hazard-Never
use machine in strong,
gusty wind
Tipping hazard-Never
push or pull objects
outside platform
Tipping hazard-Never
suspend objects from
platform
Tip-over hazard-Never
place ladders and
scaffolding on platform

SAFETY WARNING SYMBOLS AND SIGNS
GTZZ14EJ&16EJ Operation Manual 3©May 2023
Collision hazard-Keep
extended platform
away from obstacles
below when lowering
platform
Collision hazard-Keep
head away from
overhead obstacles
when raising platform
Crushing hazard-Keep
hands away from
overhead obstacles
when raising platform
Fall hazard-Never
climb on guardrails of
platform
Fall hazard-Never
climb on boom
Keep away from
rotating platform
Engine preheating
explosion hazard
Never use ether or
other starting additives
for machines with glow
plug
Fuel explosion hazard Wear protective
clothing and glasses
Only professional
maintenance
personnel can perform
maintenance
Side force Electrocution hazard Battery explosion
hazard No fire
No smoking Lifting point Lashing point Tire-to-ground load Hydraulic oil filler
Platform carrying
capacity
Do not use damaged
cords Tool or weight Fast/high speed Slow/low speed
Horn

© May 2023 4GTZZ14EJ&16EJ Operation Manual
This Page Intentionally Left Blank
SAFETY WARNING SYMBOLS AND SIGNS

GTZZ14EJ&16EJ Operation Manual 5©May 2023
2IMPORTANT SAFETY RULES
2.1 GENERAL
This chapter briefly describes the precautions that must
be followed for safe and correct operation and mainte-
nance of this machine. To ensure safe use and proper
operation of the machine, the operator must perform
routine maintenance on the machine in accordance with
the Operation Manual and Maintenance Manual. In ad-
dition, the machine must be regularly maintained and
serviced by a qualified service technician according to
the instructions provided in the Maintenance Manual.
Please first find out the local regulations regarding
MEWP and related operations. Different countries, re-
gions or governments may have related operation regu-
lations that are conflict with this manual, and in such
case, the stricter operation regulations should be fol-
lowed. If you have any questions about safety, training,
inspection, maintenance, purposes and operation of the
machine, please contact Hunan Sinoboom Intelligent
Equipment Co., Ltd.
Sinoboom could not have foreseen all the dangers that
may arise in relation to this machine, so all relevant par-
ties should pay attention to safety seriously.
Failure to follow the operating instructions and
safety rules in this manual may result in machine
damage, property loss, and personal injury.
2.2 PREPARING FOR OPERATION
Operator’s Training and Knowledge
Requirements
Before operating this machine, the operator should
read, understand and comply with all applicable regula-
tions and requirements of employers, local authorities
and governments related to the use of the machine.
Before operating this machine, the operator should
carefully read and fully understand this manual, and ac-
cept professional training based on the Operation Man-
ual and obtain the qualification to operate the machine
before operating the machine independently. The train-
ing content shall include, but not be limited to, the
following:
•Various warnings and operation instructions on the
machine and the Operation Manual
•Pre-start inspection
•Factors affecting the stability of the machine
•Common hazards and how to avoid them
•Workplace inspection
•Functions and related knowledge of all controls, in-
cluding emergency control
•Use of personal protective equipment appropriate to
the work task, workplace, and environment
•Safe operation
•Transport
•How to avoid unauthorized use
Workplace Inspection
Before and during the operation of the machine, the
user must pay attention to the hazards and take preven-
tive measures to avoid hazards in the work area. Unless
with the written permission of Hunan Sinoboom Intelli-
gent Equipment Co., Ltd., this machine shall not be
used in the following areas or conditions:
•Steep slopes or caves
•Ground with protrusions, obstacles, or debris
•Insecure or slippery surfaces
•Surfaces not sufficient to support the machine (ma-
chine weight + platform load)
•Trucks, trailers, rail cars, ships or other equipment
•Dangerous locations
•Places with overhead electric wires, cranes or other
potential obstacles
•In gusts, strong winds, or lightning weather
•Unauthorized persons
•Other places where unsafe conditions may occur
Machine Inspection
Make sure to complete all checks in strict accordance
with the steps in the Pre-operation Inspection section
of this manual before operating the machine:
•Pre-start inspection : Ensure that all components
are not loosening, missing or altered, and are se-
curely fixed, without visible damage, leakage or ex-
cessive wear, etc., and all parts are kept in their
original positions and working normally; make sure
that all fluid levels, battery level, etc. are appropriate;
ensure that the maintenance work has been

© May 2023 6GTZZ14EJ&16EJ Operation Manual
IMPORTANT SAFETY RULES
completed in accordance with the maintenance re-
quirements specified in the Maintenance Manual.
•Decals Inspection : Ensure that all decals and
nameplates are not missing and damaged and are
clearly visible.
•Functional check : Make sure that all functions of
the machine are working properly.
Without the written permission of Hunan
Sinoboom Intelligent Equipment Co., Ltd., it is
forbidden to alter or modify the machine.
2.3 OPERATION SAFETY

IMPORTANT SAFETY RULES
GTZZ14EJ&16EJ Operation Manual 7©May 2023
General
• This machine shall only be used
to transport tools to work loca-
tions and for performing tasks on
the work platform, and should not
be used for other purposes.
• Operators shall use personal fall
protection equipment (PFPE)
while operating the machine. If the
use of PFPE by persons on the
platform is required in the work-
place or user rules, the PFPE shall
be inspected and used in accord-
ance with the PFPE manufac-
turer’s instructions and applicable
government requirements.
• The operator should concentrate
on work during the operation of
the machine. The use of mobile
phones, wireless walkie-talkies,
etc. may distract the operator and
affect the safe operation of the
machine, so the operator should
completely stop the machine be-
fore using such devices.
• Remove all rings, watches and
other accessories before operat-
ing the machine, do not wear
loose clothing, and do not let long
hair hang loosely.
• People who have consumed alco-
hol or taken medicine, those who
are overtired or depressed, those
who have heart disease or other
diseases such as high blood pres-
sure or epilepsy, those who are
physically unwell, and those who
are afraid of heights are prohib-
ited from operating the machine.
• Do not operate a damaged or mal-
functioning machine. In case of
any failure, stop the machine im-
mediately, have it tagged, and
contact the manufacturer or rele-
vant department.
• Never disassemble, modify or ret-
rofit the machine or its parts.
• Never disable any safety devices
of the machine.
• Never place items on the platform
guardrails.
• Never push the control switch or
joystick through the neutral posi-
tion and directly to the opposite
direction. Before pushing the
switch to the next function posi-
tion, move it back to the neutral
position and stop, and then move
it with slow and uniform force to
perform the next function.
• Unless in case of emergency, it is
forbidden to perform operations
from the ground if any person is
still on the platform.
• When there are two or more oper-
ators on the platform, all opera-
tions of the machine must be
conducted by one person.
• Always operate the machine in
well-ventilated conditions to avoid
carbon monoxide or nitrogen ox-
ide poisoning.
• Before leaving the machine, the
platform should be completely
lowered and all power should be
cut off.

© May 2023 8GTZZ14EJ&16EJ Operation Manual
IMPORTANT SAFETY RULES
Electrocution Hazard
• This machine is not insulated and
not equipped with electrocution
protection function.
• Do not use this machine in thun-
der and lightning or rainstorm
weather. In the event of thunder
and lightning or rainstorm while
operating the machine, immedi-
ately fully lower the platform in a
safe and stable position and cut
off all power sources so as to
avoid personal injury or machine
damage.
• Comply with the national or re-
gional provisions about minimum
safety distance from live conduc-
tors. In absence of such provi-
sions, comply with Page 8, Table
2-1 Minimum Safe Distance, to
keep a minimum safety distance
from electric wires, electrical
equipment or any live (bare or in-
sulated) components. The mini-
mum safety distance shall be
determined with machine move-
ment, electric wire swinging or
drooping considered.
• If rated insulating barriers appro-
priate to the voltage of electric
wire are installed, the minimum
safety distance can be shortened.
Such barriers cannot be taken as
a part of the machine or fixed on
the machine. Reducing the mini-
mum safety distance with insulat-
ing barriers must comply with
relevant national or regional
regulations.
• Do not use the machine as a
ground wire during welding and
polishing operations.
Table 2-1 Minimum Safe Distance
Voltage
(Phase to Phase, kV) Minimum Safe Distance
0-50 3.05m (10ft)
50-200 4.60m (15ft)
200-350 6.10m (20ft)
350 -500 7.62m (25ft)
Table 2-1 Minimum Safe Distance(Continued)
Voltage
(Phase to Phase, kV) Minimum Safe Distance
500 -750 10.67m (35ft)
750 -1000 13.725m (45ft)
Do not operate the machine or transport
personnel with the machine in prohibited live
areas.
Tripping and Fall Hazards
• Before operating the machine, en-
sure that the platform guardrails
are properly installed and that the
platform gates are closed and
properly secured.
• Operators on the platform must
wear the safety belt properly and
secure the safety belt to the speci-
fied fixing point with hook. Each
fixing point shall only be used by
one person.
• Only enter and exit the platform
through the platform gate, never
through the boom tube, and extra
care should be taken. Before en-
tering and exiting the platform,
make sure the platform is fully
lowered. When entering and exit-
ing the platform, face the platform
and maintain “three-point con-
tact” with the machine with both
hands and one foot or both feet
and one hand.
• Feet must stand steadily on the
platform floor at all times. It is for-
bidden to sit, stand or climb on
the platform guardrails.
• Never use ladders, boxes, steps,
boards, or similar items on the
platform to extend the accessible
range.
• Do not allow oil, sludge or other
slippery substances to remain on
work shoes and platform floor.
• Keep the platform floor
unobstructed.

IMPORTANT SAFETY RULES
GTZZ14EJ&16EJ Operation Manual 9©May 2023
Tipping Hazard
• Before driving the machine onto
any ground, bridges, trucks and
other surfaces, check if the load-
ing capacity of these surfaces is
sufficient to support the machine
(machine weight + platform load).
Never drive the machine on surfa-
ces or edges that are not sup-
ported or under-supported.
• Operators must know about the
ground conditions in the work
area before work.
• Do not use the machine on mov-
ing surfaces or vehicles.
• The total weight of personnel, de-
vices and materials on the plat-
form shall not exceed the
maximum carrying capacity of the
platform, and all loads shall be
kept within the specified range of
the platform.
• The machine can only be driven
at low speed on slopes.
• It is forbidden to drive the ma-
chine on slopes, steps or arched
surfaces that exceed the maxi-
mum allowable climbing angle of
the machine.
• Do not use the tilt alarm as a hori-
zontal indicator. The tilt alarm on
the platform will sound only when
the machine is heavily tilted.
• If the tilt alarm sounds when the
machine drives up a slope, lower
the boom as per the following in-
structions and move the machine
to firm and level ground. Make
sure not to rotate the boom while
lowering it.
1. Lower the main boom;
2. Lower the articulated boom;
3. Retract the telescopic boom.
• If the tilt alarm sounds when the
machine drives down a slope, low-
er the boom as per the following
instructions and move the ma-
chine to firm and level ground.
Make sure not to rotate the boom
while lowering it.
1. Retract the telescopic boom;
2. Lower the articulated boom;
3. Lower the main boom.
• When the platform is raised, do
not drive the machine on uneven
or soft surfaces, or slopes that ex-
ceed the maximum allowable
climbing angle of the machine, or
in other dangerous conditions.
• The boom can only be raised or
extended when the machine is on
solid, flat ground.
• When the machine is traveling on
uneven ground, or on other rough
ground with gravel, or near cave
openings, steep slopes, etc.,
maintain a distance of at least
0.6m (2ft) from the potentially dan-
gerous objects, and reduce the
speed.
• Do not push or pull any objects
outside the platform.
• Never push or pull other equip-
ment or objects with the platform
or boom.
• Do not place or attach any sus-
pended load on or to any part of
the machine.
• Do not place any load outside the
perimeter of the platform.
• It is forbidden to use the machine
as hoist or crane.
• Never attach the machine or its
parts to any adjacent objects.
• When one or more tires are off
the ground, first evacuate all per-
sonnel and then stabilize the ma-
chine with cranes, hoists,
forklifts, or other suitable
equipment.
• Without the written authorization
of the manufacturer, it is forbid-
den to modify, remove or install
any parts, including counter-
weights, which may affect the
safety and stability of the
machine.
• Do not replace critical parts that
affect the stability of the machine
with parts of different weights or

© May 2023 10 GTZZ14EJ&16EJ Operation Manual
IMPORTANT SAFETY RULES
specifications. For example, the
batteries, because they not only
provide power, but also play the
role of counterweight, which is es-
sential to maintain the stability of
the machine.
• Do not operate the machine when
the wind speed exceeds 12.5m/s
(28mph). Please check the Beau-
fort wind force scale in Page 10,
Table 2-2 . Factors that affect wind
speed include: platform height,
surrounding terrain, local weath-
er. For example, the wind speed at
high places may be much faster
than those on the ground.
• Wind speeds might change at any
time. The upcoming weather con-
ditions, the time required to lower
the platform, and ways to monitor
current and potential wind condi-
tions must always be considered.
• When operating the machine out-
doors, do not carry items with a
large surface area on the platform,
do not cover the surface of the
platform or load, and never use
other additional items to increase
the surface area of the platform or
load. Adding additional items will
increase the area of the machine
exposed to wind, and increasing
the windward area will lead to re-
duced machine stability.
Table 2-2
BEAUFORT
SCALE
WIND SPEED DESCRIP-
TION LAND CONDITIONS
METER/
SECOND MILE/HOUR
0 0～0.2 0～0.5 Calm Calm. Smoke rises vertically.
1 0.3～1.5 1～3Light air Direction of wind shown by smoke drift.
21.6～3.3 4～7Light breeze Wind felt on exposed skin. Leaves rustle.
3 3.4～5.4 8～12 Gentle
breeze Leaves and smaller twigs in constant motion.
4 5.5～7.9 13～18 Moderate
breeze
Dust and loose paper rise. Leaves and smaller
twigs in constant motion.
5 8.0～10.7 19～24 Fresh breeze Smaller trees sway.
6 10.8～13.8 25～31 Strong
breeze
Large branches in motion. Flags waving near
horizontal. Umbrella use becomes difficult.
7 13.9～17.1 32～38
Near gale/
moderate
gale
Whole trees in motion. Effort needed to walk
against the wind.
8 17.2～20.7 39～46 Fresh gale Twigs broken from trees. Cars veer on road.
9 20.8～24.4 47～54 Strong gale Light structure damage.
If the wind speed increases to exceed 12.5m/s (28mph) after the platform is raised, the platform should be
retracted immediately, and then all power supplies should be cut off, and the machine should be stopped.