Sinoboom TB20J Plus User manual

TB20J Plus Maintenance Manual
Preface to TB20J Plus Maintenance
Manual
TB20J Plus/TB660J Plus
TB20J Plus T4
Maintenance
Manual
Manual No: 505050110002
REV: D
Feb. 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 other relevant
regulations.
This manual provides necessary safety precautions and maintenance
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
A Feb. 2021 Original issue
B Jun. 2022 Revised manual, added description of hydraulic generator, Weichai and
Yuchai engines.
CNov. 2022 Revised manual, implemented the BS EN 280-1:2022 standard
requirements, revised the logic description of drive speed selector
switch, etc.
D Feb. 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.
TB20J Plus TB20J Plus TB660J Plus 0505000310 to present
TB20J Plus T4 TB20J Plus T4 / 0505000310 to present
Note:
•Check the machine model and serial number on the machine nameplate, and whose position can be
found in the Diagram of Decals Positions 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.
•In the text, TB20J Plus T4 is referred to as TB20J Plus.

TB20J Plus Maintenance Manual i©Feb. 2023
CONTENTS
1 Safety Warning Symbols
and Signs .........................1
2 Maintenance Safety
Precautions......................5
2.1 General ........................... 5
2.2 Instructions before Maintenance . . 5
Requirements for Maintenance
Personnel ............................ 5
Precautions before Maintenance . . . . . 5
2.3 Maintenance Safety . . . . . . . . . . . . . . . 6
2.4 Considerations after
Maintenance . . . . . . . . . . . . . . . . . . . . . 10
3 Technical Characteristics 11
3.1 Machine Specifications . . . . . . . . . . 11
3.2 Specifications of Major
Components . . . . . . . . . . . . . . . . . . . . . 13
Engine...............................13
Reducer..............................14
Motor ................................15
Battery...............................15
Hydraulic Pump. . . . . . . . . . . . . . . . . . . . . .15
3.3 Function Speed . . . . . . . . . . . . . . . . . .15
3.4 Weight of Major Components . . . . 16
3.5 Pressure Requirements . . . . . . . . . . 17
3.6 Oil Requirements . . . . . . . . . . . . . . . . 18
3.7 Torque Specifications . . . . . . . . . . . . 19
Special Torque Requirements . . . . . . . 19
Fastener Torque Specifications. . . . . . 20
Hydraulic Hose Torque . . . . . . . . . . . . . . 22
Hydraulic Fitting Torque . . . . . . . . . . . . . 22
4 Maintenance Instructions25
4.1 Inspection and Preventative Mainte-
nance Schedule . . . . . . . . . . . . . . . . . . 25
Pre-delivery Inspection . . . . . . . . . . . . . . 25
Pre-operation Inspection . . . . . . . . . . . . 25
Frequent Inspection . . . . . . . . . . . . . . . . . 25
Annual Machine Inspection . . . . . . . . . . 25
Preventive Maintenance . . . . . . . . . . . . . 25
Responsible Persons and Qualifi-
cations for Performing Inspection
and Maintenance . . . . . . . . . . . . . . . . . . . . 26
Inspection and Preventative Main-
tenance Schedule . . . . . .. . . . . . . . . . . . . 26
4.2 General Maintenance
Instructions. . . . . . . . . . . . . . . . . . . . . . . 30
4.3 Major Modification and Repair . . . 34
5 Chassis and Turntable
Assembly ....................... 35
5.1 Chassis and Turntable System. . . 35
Chassis Tilt Sensing System . . . . . . . . 35
Travel Drive System . . . . . . . . . . . . . . . . . 35
Travel Speed Reduction System . . . . 35
Reverse Drive Confirmation System. 35
Outrigger Oscillating System . . . . . . . . 35
5.2 Tire Assembly . . . . . . . . . . . . . . . . . . . . 35
Check Wheel Fasteners . . . . . . . . . . . . . 36
Replacement Requirements . . . . . . . . . 36
Replace Tires . . . . . . . . . . . . . . . . . . . . . . . . 36
5.3 Travel Drive Device . . . . . . . . . . . . . . 37
Check Disengaged Drive Hub Cap . . 38
Check Oil Level in Travel Reducer. . . 38
Replace Gear Oil in Travel Reducer . 38
Disassembly and Installation . . . . . . . . 38
5.4 Slewing Mechanism. . . . . . . . . . . . . . 39

© Feb. 2023 ii TB20J Plus Maintenance Manual
Check Oil Level in Slewing Reducer. 40
Replace Gear Oil in Slewing
Reducer..............................41
Lubricate Slewing Bearing . . . . . . . . . . . 41
Inspect Slewing Bearing Bolts . . . . . . . 41
Adjust Gear Backlash of Slewing
Mechanism ..........................43
Disassembly and Installation . . . . . . . . 43
5.5 Counterweight . . . . . . . . . . . . . . . . . . . 45
5.6 Hydraulic Generator. . . . . . . . . . . . . .45
Installation...........................45
Debugging...........................46
5.7 Battery ...........................47
6 Boom and Platform
Assembly ....................... 49
6.1 Boom and Platform System . . . . . . 49
Broken Wire Rope Detection System 49
Platform Control Enable System. . . . . 49
Transport Position Sensing System . 49
Load Sensing System . . . . . . . . . . . . . . . 49
6.2 Platform and Jib Boom . . . . . . . . . . . 50
Platform Controller. . . . . . . . . . . . . . . . . . . 50
Platform Assembly. . . . . . . . . . . . . . . . . . . 50
Jib Boom Assembly. . . . . . . . . . . . . . . . . . 51
Swing Cylinder. . . . . . . . . . . . . . . . . . . . . . . 51
Upward Leveling Cylinder . . . . . . . . . . . 52
6.3 Boom.............................52
Cable Track Assembly . . . . . . . . . . . . . . .52
Downward Leveling Cylinder . . . . . . . . 53
Lift Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Main Boom Assembly . . . . . . . . . . . . . . . 54
Boom Slider. . . . . . . . . . . . . . . . . . . . . . . . . . 55
Telescopic Wire Rope . . . . . . . . . . . . . . . 56
Telescopic Cylinder . . . . . . . . . . . . . . . . . . 58
7 Power System ................ 59
7.1 Deutz D2.9L4 . . . . . . . . . . . . . . . . . . . . 59
7.2 Yuchai YCF30. . . . . . . . . . . . . . . . . . . . 65
7.3 Yanmar 4TNV88-BDFLTC . . . . . . . 71
7.4 Cummins QSF2.8 . . . . . . . . . . . . . . . . 78
7.5 Weichai WP3.2. . . . . . . . . . . . . . . . . . . 84
7.6 Auxiliary Power System . . . . . . . . . . 91
8 Hydraulic System ........... 93
8.1 Layout of Hydraulic Elements . . . . 93
8.2 Function Valves . . . . . . . . . . . . . . . . . . 95
8.3 Hydraulic Oil . . . . . . . .. . . . . . . . . . . 105
Check Oil Level . . . . . . . . . . . . . . . . . . . . 105
Check the Cleanliness of Hydraulic
Oil.................................. 105
Replace Hydraulic Oil. . .. . . . . . . . . . . 105
8.4 Hydraulic Tank . . . . . . . . . . . . . . . . . 106
Air Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Return Filter . . . . . . . . . . . . . . . . . . . . . . . 106
Suction Filter. . . . . . . . . . . . . . . . . . . . . . . 106
8.5 Hydraulic Oil High-pressure
Filter............................ 107
8.6 Oscillating Cylinder Exhausting 107
8.7 Oscillation Function Check. . . . . 107
Check Counterbalance Valve
Locking ............................ 107
Check Tie Rod of Oscillation Multi-
way Valve . . . . . . . . . . . . . . . . . . . . . . . . . 108
Test Oscillating Outrigger Function 108
8.8 Inspect Cylinder Drift . . . . . . . . . . . 108
8.9 Hydraulic Symbols . . . . . . . . . . . . . 108
8.10 Hydraulic Schematic Diagram .110
9 Electrical System.......... 113
9.1 Battery . . . . . . . . . . . . . . . . . . . . . . . . . .113
Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . .113
Adding Water . . . . . . . . . . . . . . . . . . . . . . .114
Equalization . . . . . . . . . . . . . . . . . . . . . . . .114
Storage .............................114
9.2 Fault Codes Description . . . . . . . .115
Machine Fault Codes . . . . . . . . . . . . . . .115
Engine Fault Codes. . . . . . . . . . . . . . . . .118

TB20J Plus Maintenance Manual iii ©Feb. 2023
9.3 Basic Trouble Shooting . . . . . . . . .118
9.4 Electrical Symbols . .. . . . . . . . . . . 121
9.5 Electrical Schematic Diagram. . 123
Electrical Schematic Diagram of
Turntable. . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Electrical Schematic Diagram of
Platform............................ 129
Electrical Schematic Diagram of
Engine............................. 131
Electrical Schematic of Hydraulic
Generator. . . . . . . . . . . . . . . . . . . . . . . . . . 133
10 Functions and
Controls ....................... 135
10.1 Drive Function . . . . . . . . . . . . . . . . 135
10.2 Braking Function. . . . . . . . . . . . . . 135
10.3 Tilt Protection Function . . . . . . . 136
10.4 Maximum Working Envelope
Limit Function . . . . . . . . . . . . . . . . . . 136
10.5 Overload Limit Function . .. . . . 137
11 Control System........... 139
11.1 Display Interface . . . . . . . . . . . . . . 139
11.2 Main Interface after Booting. . . 141
11.3 Description of Icon Functions . 141
11.4 Language Setting . . . . . . . . . . . . . 142
11.5 Test-run Information. . . . . . . . . . . 143
Sensor Calibration . . . . . . . . . . . . . . . . . 143
Weight Calibration . . . . . . . . . . . . . . . . . 144
Joystick Calibration . . . . . . . . . . . .. . . . 144
11.6 Advanced Setting (topic) . . . . . . 145
Sensor Configuration . . . . . . . . . . . . . . 145
Turntable Enable . . . . . . .. . . . . . . . . . . 145
Standardization . . . . . . . . . . . . . . . . . . . . 146
Proportional Configuration . . . . . . . . . 147
Parameter Restore/Save . . . . . . . . . . 149
11.7 System Information . . . . . . . . . . . 150
Time Setting . . . . . . . . . . . . . . . . . . . . . . . 150
Sensor Information . . . . . . . . . . . . . . . . 150
Digital Input Information . . . . . . . . . . . 151
Digital Output Information . . . . . . . . . 151
Proportional Information . . . . . . . . . . . 152
Engine Information . . . . . . . . . . . . . . . . 152
11.8 Turntable Panel Information . . 155
11.9 Platform Information . . . . . . . . . . 155
11.10 Alarm Information. . . . . . . . . . . . 156
12 Options ...................... 159
12.1 Anti-pinch Device . . . . . . . . . . . . . 159
Device Components . . . . . . . . . . . . . . . 160
Installation and Removal . . . . . .. . . . 161
Instructions for Use . . . . . . . . . . . . . . . . 161
12.2 Platform Pipe Support Device 162
Device Components . . . . . . . . . . . . . . . 163
Installation and Removal . . . . . .. . . . 164
Instructions for Use . . . . . . . . . . . . . . . . 165
12.3 Glass Panel Bracket Device . . 165
Device Components . . . . . . . . . . . . . . . 166
Installation and Removal . . . . . .. . . . 167
Instructions for Use . . . . . . . . . . . . . . . . 168
12.4 Platform Fence Device . . . . . . . 168
Device Components . . . . . . . . . . . . . . . 169
Installation and Removal . . . . . .. . . . 171
Instructions for Use . . . . . . . . . . . . . . . . 173
13 Appendix.................... 175
13.1 Major Modification and Repair
Record ......................... 175
13.2 Inspection and Preventative
Maintenance Schedule. . . . . . . . . 176

© Feb. 2023 iv TB20J Plus Maintenance Manual

TB20J Plus Maintenance Manual 1©Feb. 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.

© Feb. 2023 2TB20J Plus Maintenance Manual
SAFETY WARNING SYMBOLS AND SIGNS
The safety signs used on the machine and in the manuals 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
TB20J Plus Maintenance Manual 3©Feb. 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

© Feb. 2023 4TB20J Plus Maintenance Manual
This Page Intentionally Left Blank
SAFETY WARNING SYMBOLS AND SIGNS

TB20J Plus Maintenance Manual 5©Feb. 2023
2MAINTENANCE SAFETY
PRECAUTIONS
2.1 GENERAL
This chapter covers safety precautions that must be tak-
en when servicing the mobile elevating work platform.
Before carrying out any repair work, the maintenance
personnel must carefully read and understand all warn-
ings and precautions, and follow the maintenance in-
structions in this manual to perform all necessary
maintenance on the mobile elevating work platform.
Without the written permission of Hunan
Sinoboom Intelligent Equipment Co., Ltd., it is
forbidden to alter or modify the machine.
2.2 INSTRUCTIONS BEFORE
MAINTENANCE
Requirements for Maintenance
Personnel
The maintenance personnel are responsible for main-
taining the machine and ensuring its safe use and nor-
mal operation. Before inspecting and maintaining this
machine, the maintenance personnel should read,
understand and comply with all applicable regulations
and requirements of employers, local authorities and
governments related to the application of this machine,
and read and fully understand this manual.
The maintenance personnel shall:
•obtain appropriate qualification or authorization
•be experienced professional technicians or
engineers
•be familiar with the machine being repaired and its
hazards
•receive appropriate training, including but not limited
to training on the use of special equipment
•be familiar with the safety precautions and related
operating procedures for maintaining this machine
NOTICE
•Only authorized personnel who have received ap-
propriate training and obtained qualifications can
repair this machine.
•People who have consumed alcohol or taken med-
icine, those who are overtired or depressed, and
those who are physically unwell are prohibited
from repairing the machine.
Precautions before Maintenance
Before machine inspections and maintenance and dur-
ing maintenance, maintenance personnel must be care-
ful and take measures to avoid dangerous situations.
Those measures include, but are not limited to, the
following:
1. Choose an appropriate place for maintenance.
•Always park the machine on level, firm ground
for maintenance, and ensure that the mainte-
nance site is clean and unobstructed.
•If the machine uses the engine as the main
power source, ensure that the maintenance site
is open and well ventilated. The exhaust gases
from the engine contain chemicals that may
cause suffocation or poisoning, so forced venti-
lation measures must be taken if it is necessary
to start the engine in a restricted indoor area. A
hose can be connected to the exhaust pipe to
discharge the exhaust gases to the outside, and
the doors and windows shall be opened for air
circulation.
2. Choose appropriate safety protective devices.
•The maintenance personnel must find out vari-
ous potential hazards that may arise during the
inspection and maintenance work, and select
appropriate safety protective devices according
to the maintenance work and work place condi-
tions, such as safety helmets, protective masks,
protective gloves, goggles, protective clothing,
safety belts and safety shoes.
•Before carrying out inspection and maintenance
work, check and ensure that the protective devi-
ces are not damaged and are used correctly.
•Safety protective devices must be inspected

© Feb. 2023 6TB20J Plus Maintenance Manual
MAINTENANCE SAFETY PRECAUTIONS
regularly and replaced if any damage is found.
3. Choose appropriate repair tools.
•Before conducting any inspection and mainte-
nance work, the maintenance personnel shall
prepare appropriate tools as required by the
work, such as wrench, screwdriver, pliers, multi-
meter, pressure gauge, lubrication device, jack
and lifting equipment.
•While choosing a jack or lifting equipment, con-
firm whether its carrying capacity can meet the
requirements of use. Refer to the Weight of Ma-
jor Components section to select the device
with sufficient load capacity.
•Service tools must be kept clean and in good
condition.
4. Lock the wheels after the machine is parked to pre-
vent the machine from rolling.
5. Do not perform inspection and maintenance work
while the machine is started.
•Before performing inspection and maintenance
work, make sure the machine is turned off and
remove the key. A “No Operation” warning sign
can be placed next to the ground controller and
platform controller, or the main power switch can
be pressed to prevent unrelated personnel from
inadvertently starting the machine.
If an unrelated person inadvertently starts
the machine during inspection or mainte-
nance, it may cause machine damage or
personal injury.
•If inspection or maintenance work must be car-
ried out while the machine is started, at least two
people should work together. One person must
stand in front of the turntable controller panel or
platform controller panel so as to turn off the ma-
chine at any time if necessary, another person
shall carry out inspection or maintenance work,
and they shall maintain close contact with each
other.
6. Before maintaining electrical components, always
press the main power switch.
7. Before carrying out inspection and maintenance
work, clean the machine. Prevent dust or debris
from getting into the machine parts during mainte-
nance and affecting machine performance.
Please strictly follow the above requirements during the
maintenance process. In addition, take other measures
to ensure safety during the maintenance process as ap-
propriate for the actual environment.
2.3 MAINTENANCE SAFETY

MAINTENANCE SAFETY PRECAUTIONS
TB20J Plus Maintenance Manual 7©Feb. 2023
Unsafe Maintenance Hazard
• Before performing any adjust-
ment or service operations, power
off all control units and ensure
that all moving parts are securely
secured and free from accidental
movement.
• Before performing any adjust-
ment or service operations, en-
sure that the boom is stowed, and
do not work under the raised plat-
form/boom. If anyone needs to
work under the raised platform/
boom, the platform and boom
must be supported with appropri-
ate safety supports.
• When lifting or moving heavy
parts of the machine, use equip-
ment with sufficient capacity, and
never place heavy objects in un-
stable positions after moving.
• When machine parts are lifted by
other equipment, ensure that
there are no people under and
around the equipment.
• When striking the brass rod with
a mallet, make sure to wear
goggles.
• If you need to replace parts, use
the original parts designated by
Sinoboom.
• Do not wash the machine with
water. The machine contains
many electronic components
such as solenoid valves and sen-
sors, which may fail or work
poorly after water ingress. If water
washing is necessary, please turn
off the main power switch firstly,
and dry the machine thoroughly
before turning on the power.
• Make sure the machine is turned
off before using flushing equip-
ment (such as high-pressure
water gun) to clean the machine. It
is forbidden to direct the water or
vapor ejected from the flushing
equipment at the electrical com-
ponents, otherwise short circuit
or electric shock may result.
• After maintenance, clean the
spilled hydraulic oil thoroughly
and do not spill the hydraulic oil
on the ground.
• After maintenance, immediately
wash any hydraulic oil on the
skin.
• Waste hydraulic fluids, fuels,
coolants and refrigerants should
be recycled or disposed as per lo-
cal regulations.

© Feb. 2023 8TB20J Plus Maintenance Manual
MAINTENANCE SAFETY PRECAUTIONS
High Temperature and High Pressure
Hazards
• Some parts may have high sur-
face temperature when the ma-
chine is running or after the
machine has running for some
time, which may cause burns
through skin contact. Do not
touch any hot parts!
• It is forbidden to repair or tighten
hydraulic hoses or seals while the
machine is live or when the oil
system is under pressure.
• Before loosening or disassem-
bling the hydraulic parts (espe-
cially the counterbalance valve on
the cylinder), the hydraulic pres-
sure of all hydraulic lines should
be released and ensure that the
hydraulic oil is completely cooled
down.
• Disassemble the hydraulic com-
ponents slowly to prevent the hy-
draulic oil from splashing and
injuring people.
• It is forbidden to check the hy-
draulic leakage point by hand.
Use a piece of cardboard or stiff
paper to find leaks, and wear
gloves to protect your hands from
hydraulic fluid sprays.
• Do not operate the machine in
case of hydraulic oil or air leaks.
Oil or air leaked from the hydraul-
ic system may penetrate and burn
the skin.
• It is forbidden to plug leaking hy-
draulic oil by hand. If there is a
leak, the pressure of the hydraulic
system should be released first,
and the maintenance should be
carried out after the hydraulic oil
has cooled down.
• If you are injured by ignoring the
dangers of high temperature and
high pressure, seek immediate
medical attention. If treatment is
not carried out immediately, seri-
ous complications can result.
Welding and Polishing Operation
Hazards
• Welding, grinding and polishing
operations must follow the appro-
priate local safety operating
procedures.
• Before performing welding, grind-
ing and polishing operations, the
machine should be powered off,
and ensure that the wires or ca-
bles are connected correctly.
• Do not use the machine as a
ground wire during welding and
grinding operations.
• Always make sure that all power
tools are completely placed within
the perimeter of the platform. Do
not hang the wires of power tools
on the guardrail of the platform or
in any work area outside the plat-
form, or hang the power tools di-
rectly with wires.
Fire and Explosion Hazards
• Do not operate the machine,
charge the battery or refuel the
machine in places where poten-
tially flammable or explosive
gases may be present.
• Refueling and charging should be
carried out in a well-ventilated
place without flames, sparks, and
other hazards that may cause fire
or explosion.
• For machines powered by an en-
gine, do not refuel the machine
while the engine is running.
• Never spray ether into the engine
with a glow plug (if the machine is
equipped with an engine).
• Never touch the battery terminals
or cable clamps with tools that
can generate sparks.
• Only approved non-flammable
cleaning solutions should be used
on the machine.