Sinoboom GTJZ0612E User manual

GTJZ0612E/0612E/2146E
GTJZ0812E/0812E/2746E
GTJZ1012E/1012E/3346E
GTJZ1212E/1212E/4047E
Maintenance
Manual
Part No.501048110002
Rev: C
Mar. 2022
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, 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 follow your nation regulation.

Please contact us:
Website : www.sinoboom.com
E-mail : [email protected]
Sales Tel : [phone]
Service Tel : [phone]
Address : No.128, East Jinzhou Avenue, Ningxiang High-tech Industrial Park, Changsha,
Hunan, China
Zip Code : 410600
Copyright © Hunan Sinoboom Intelligent Equipment CO., Ltd. All Rights Reserved
The final interpretation right of this manual belongs to Hunan Sinoboom Intelligent Equipment CO., Ltd.
Manual revision history:
REV DATE DESCRIPTION REMARK
AJul, 2020 Original issue of the manual
B Oct, 2021 Updated manual
C Mar, 2022 Updated manual

APPLICATION
Use the following table to identify the specific serial number for models included in this manual. Check
the model of your machine before consulting the manual, and then use the correct manual according to
the serial number of the model. See the nameplate on your machine to identify the model and serial
number.(See Decals/Nameplates Inspection section of the Operation Manual for details.)
MODELS
Trade identification
SERIAL NO.
Metric Imperial
GTJZ0612E 0612E 2146E From 0105100139 to present
GTJZ0812E 0812E 2746E From 0105200562 to present
GTJZ1012E 1012E 3346E From 0104800852 to present
GTJZ1212E 1212E 4047E From 0104901070 to present
NOTE:
•Product model is applied in product nameplate for distinction of products of different main
parameters.
•Product trade identification is applied in marketing and machine decals for distinction of products of
different main parameters, and can be classified as metric type and imperial type: The metric type of
trade identification is applicable to machines for countries/regions using metric system or as spe-
cially required by customers; The imperial type of trade identification is applicable to the machines
for countries/regions using imperial system or as specially required by customers.

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STATEMENTS
Hunan Sinoboom Intelligent Equipment Co., Ltd. (Hereinafter referred to as Sinoboom) will upload the
latest product manual information to the website www. sinoboom. com as soon as possible. However,
due to continuous product improvement, the information in this manual is subject to change without prior
notice.
This manual covers the basic parts information of one or more products. Therefore, please use this
manual according to your needs. If you find problems in the manual or have suggestions for improve-
ment, feel free to share your feedback with Sinoboom, and we will address these issues as soon as
possible.
Feel free to consult and download the Operation Manual,Maintenance Manual and Parts Manual of the
products you need online at www.sinoboom.com.
Hunan Sinoboom Intelligent Equipment Co., Ltd. retains the right of final interpretation of the manual.
All of the above are registered trademarks of Hunan Si-
noboom Intelligent Equipment Co., Ltd..

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GTJZ0612E&0812E&1012E&1212E Maintenance Manual i© Mar. 2022
TABLE OF CONTENTS
Introduction ..............................v
1 Safety............................... 1-1
Safety Definitions . . . . . . . . .. . . . . . . . . . . . 1-1
Reporting Accidents. . . . . . . . . . . . . . . . . . . 1-1
Electrocution Hazards. . . . . . . . . . . . . . . . . 1-2
Tipping Hazards and Rated Load . . . . . 1-2
Work Environment Hazards . . . . . . . . . . . 1-4
Unsafe Operation Hazards. . . . . . .. . . . . 1-5
FallHazards...........................1-6
Collision Hazards . . . . . . . . .. . . . . . . . . . . . 1-7
Crush Hazards . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Explosion and Fire Hazards. . . . . .. . . . . 1-8
Damaged Machine Hazards . . . . . . . . . . 1-8
Bodily Injury Hazards . . . . . . . . . . . . . . . . . 1-9
Battery Hazards . . . . . . . . . . . . . . . . . . . . . . . 1-9
Hydraulic Systems Hazard . . . . . . . . . . . 1-11
Welding and Polishing Requirements 1-11
After Using the Machine. . . . . . . . . . . . . . 1-11
2 Specifications .................... 2-1
Performance Parameters . . . . . . . . . . . . . 2-1
Major Component Weights. . . . . . . . . . . . 2-8
Power System Specifications . . . . . . . . 2-11
Hydraulic Hose and Fitting
Specifications . . . . . . . . . . . . . . . . . . . . . . . .2-12
Hydraulic Hose Torque . . . . . . . . . . . .2-12
Hydraulic Fitting Torque . . . . . . . . . . .2-12
Hydraulic Hose and Fitting Tight-
ening Procedure . . . . . . . . . . . . . . . . . . .2-15
Fastener Torque Specifications . . . . . .2-15
3 System Descriptions............ 3-1
Power .................................3-1
Hydraulic System . . . . . . . . .. . . . . . . . . . . . 3-1
Electrical System . . . . . . . . . . . . . . . . . . . . . 3-1
Machine Control System . . . . . . . . .. . . . . 3-1
Safety Measures . . . . . . . . . . . . . . . . . . . . . . 3-1
4 Service and Guidelines......... 4-1
Machine Preparation, Inspection and
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
General.............................4-1
Preparation, inspection and
maintenance . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Qualified Sinoboom equipment
mechanic ...........................4-1
Pre-operation inspection. . . . . . . . . . . . 4-1
Pre-delivery inspection and
frequent inspection . . . . . . . . . . . . . . . . . 4-1
Annual machine inspection . . . . . . . . . 4-1
Preventive maintenance . . . . . . . . . . . . 4-2
Storage .............................4-3
Maintenance and Servicing
Precautions ...........................4-3
General.............................4-3
Safety and workmanship . . . . . . . . . . . 4-3
Cleanliness . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Component removal and installation4-4
Component disassembly and
assembly ...........................4-4
Scrap of structural parts . . . . . . . . . . . . 4-4
Pressure-fit parts . . . . . . .. . . . . . . . . . . . 4-5
Bearings ............................4-5
Gaskets.............................4-5
Bolt usage and torque application . . 4-5
Hydraulic lines and electrical wiring 4-5
Hydraulic system . . . . . . . . . . . . . .. . . . . 4-5
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Battery..............................4-5
Pins and composite bearing. . . . . . . . . . . 4-5
Application of Insulating Silicone
Grease to Electrical Connections . . . . . 4-6

© Mar. 2022 ii GTJZ0612E&0812E&1012E&1212E Maintenance Manual
5 Maintenance ...................... 5-1
Conducting a Pre-delivery Inspection . 5-1
Following a Maintenance Schedule . . . 5-2
Completing a Repair & Inspection
Report.................................5-2
Major Modification and Repair Record 5-5
Checklist A Procedures . . . . . . . . . . . . . . . 5-6
A-1 Inspect All Manuals. . . . . . . . . . . . . 5-6
A-2 Inspect All Decals . . . . . . . . . . . . . . 5-6
A-3 Inspect Damaged, Loose or
LostParts...........................5-6
A-4 Inspect Hydraulic Oil Level . . . . . 5-7
A-5 Inspect Hydraulic Oil Leakage. . 5-7
A-6 Functional Tests . . . . . . . . . . . . . . . . 5-7
A-7 Inspect the Battery Level . . . . . . . 5-9
A-8 Perform Maintenance After 30
Days...............................5-10
Checklist B Procedures . . . . . . . . . . . . . .5-10
B-1 Inspect Electric Wires . . . . . . . . .5-10
B-2 Inspect Rim, Tire and
Fasteners..........................5-10
B-3 Inspect Battery . . . . . . . . . . . . . . . . 5-11
B-4 Inspect Hydraulic Oil . . . . . . . . . .5-12
B-5 Inspect Air filter of Hydraulic
Tank ...............................5-13
B-6 Inspect Brake Manual Release
Function ...........................5-13
B-7 Inspect Emergency Lowering
Function ...........................5-14
B-8 Test Braking Device . . . . . . . . . . .5-15
B-9 Test Full Lift/Lower Time . . . . . .5-15
B-10 Test Drive Speed. . . . . . . . . . . . .5-15
B-11 Inspect the Tilt Protection
Function ...........................5-16
B-12 Inspect Pothole Guards . .. . . .5-17
Checklist C Procedures . . . . . . . . . . . . . .5-18
C-1 Replace Hydraulic Oil Tank Air
Filter ...............................5-18
C-2 Inspect Platform Weighing
System (optional) . . . . . . .. . . . . . . . . . .5-18
C-3 Inspect Up Limit Switch . . . . . . .5-19
C-4 Inspect Staged Lowering . . . . . .5-19
C-5 Inspect Carbon Brush of Motor5-20
Checklist D Procedures . . . . . . . . . . . . . .5-20
D-1 Inspect Scissor Arm
Installation Bearing . . . . . . . . . . . . . . . .5-20
D-2 Inspect Chassis Slider . . . . . . . .5-20
D-3 Replace Return Oil Filter
Element............................5-21
D-4 Replace Hydraulic Oil . . . . . . . . .5-21
6 Repair............................... 6-1
Platform Components . . . . . . . . . . . . . . . . . 6-1
Platform Controller. . . . . . . . . . . . . . . . . . 6-1
Platform.............................6-1
Extension Platform . . . . . . . . . . . . . . . . . 6-2
Scissor Components . . . . . . . . . . . . . . . . . . 6-2
Scissor Arm Assembly. . . . . . . . . . . . . . 6-2
Lift Cylinder . . . . . . . . . . . . .. . . . . . . . . . . . 6-3
Chassis Components . . . . . . . . . . . . . . . . . 6-3
Tires and Rims. . . . . . . . . . . . . . . . . . . . . . 6-3
Reducer & Drive Motor . . . . . . . . . . . . . 6-4
Front Wheel Bracket . . . . . . . . . . . . . . . . 6-5
Removing Steer Cylinder . . . . . . . . . . . 6-5
Battery..............................6-5
Hydraulic System . . . . . . . . .. . . . . . . . . . . . 6-6
Layout of Hydraulic Elements. . . . . . . 6-6
Hydraulic Valves . . . . . . . . . . . . . . . . . . . . 6-6
Regulating Hydraulic Valve
Pressure...........................6-10
Adjusting the Emergency Lowering
Handle.............................6-11
Hydraulic Symbols . . . . . . . . . . . . . . . . . 6-11
Hydraulic Schematic Diagram . . . . .6-13
Electrical System. . . . . . . . . . . . . . . . . . . . .6-15
Use and Maintenance of Battery. . .6-15
Charger Troubleshooting . . . . . . . . . .6-17
Sinoboom Control System . . . . . . . . .6-17

GTJZ0612E&0812E&1012E&1212E Maintenance Manual iii © Mar. 2022
DTC-K500 Control System . . . . . . . .6-24
Trouble Diagnosis . . . . . . . . . . . . . . . . .6-28
Fundamental Troubleshooting . . . . .6-38
Electrical Symbols . . . . . . . . . . . . . . . . .6-41
Electrical Schematic Diagram . . . . .6-43
Appendix 1: Prepare the Work
Record Before Delivery ....... A-1
Appendix 2：Repair & Inspection
Report .............................A-3
Appendix 3: Major Modification
and Repair Record ............. A-7

© Mar. 2022 iv GTJZ0612E&0812E&1012E&1212E Maintenance Manual

GTJZ0612E&0812E&1012E&1212E Maintenance Manual v© Mar. 2022
INTRODUCTION
Thank you for choosing and using the machinery of
Hunan Sinoboom Intelligent Equipment Co., Ltd. Al-
ways read, understand and become familiar with the
operation requirements of the machine and its associ-
ated safety procedures before operating, maintaining
and repairing the machine. Operating the machine with-
out becoming familiar with its specific operation require-
ments and safety procedures poses serious risks.
Operators who follow safety rules and operate the ma-
chine carefully and effectively will prevent personal in-
jury, property loss and accidents.
Use this machine only to transport tools to work loca-
tions and for performing tasks on the work platform. Op-
erators must be competent and must obtain training to
carefully use the machine and follow safety procedures.
Only trained and authorized personnel may operate the
machine.
This manual guides the operator and authorized per-
sonnel in maintaining the machine. The operator is re-
sponsible for reading, understanding and implementing
the maintenance and safety procedures in this manual
and for following the manufacturer’s instructions before
beginning any work. Read, understand and follow all
safety rules and operating instructions. The operator
must also consider the machine’s uses and limitations
and the conditions at the jobsite before using this ma-
chine. Strictly following all safety requirements in this
manual is critical.
Consider this manual a part of the machine, along with
Operation Manual and Parts Manual, and always keep
the manuals with the machine. The owner or adminis-
trator of the machine shall offer all manuals and other
necessary information provided by the machine manu-
facturer regarding the daily inspection and maintenance
to each of the renters. If the machine is sold, the owner
or administrator must pass along the manuals and other
necessary information to the purchaser. The owner or
administrator of the machine shall also provide the
manufacturer’s maintenance information to the person
responsible for maintaining the machine.
If you have any questions, contact Hunan Sinoboom In-
telligent Equipment Co., Ltd..

© Mar. 2022 vi GTJZ0612E&0812E&1012E&1212E Maintenance Manual
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GTJZ0612E&0812E&1012E&1212E Maintenance Manual 1-1 © Mar. 2022
1SAFETY
Read, understand and comply with the safety rules and
regulations of your workplace and your government.
Before using the machine, ensure the operator is prop-
erly trained and qualified in safely operating the ma-
chine. The training includes but is not limited to：
•Warning and instruction decals on the machine
•Pre-operation inspection
•Any factors that may affect the machine stability
•Common hazards and countermeasures
•Jobsite inspection
•Functions of all controls and associated knowledge,
including emergency control.
•Personal protection equipment that suits the task,
workplace and environment.
•Safety operation
•Transporting the machine
•Measures against unauthorized use
•Operating instructions
Understand that as the operator you have the responsi-
bility and right to shut down the machine in case of fail-
ure with the machine or other emergency at your
workplace.
NOTICE
People suffering from heart disease, hypertension,
epilepsy and other diseases and people who fear
heights must never operate or use this machine. Al-
so, people who have alcohol or drugs in their system,
or experience excessive fatigue or depression, are
prohibited from operating or using this machine.
SAFETY DEFINITIONS
This safety alert symbol appears with
most safety statements. It means atten-
tion, become alert, your safety is in-
volved! Please read and abide by the
message that follows the safety alert
symbol.
Indicates a hazardous situation that, if not
avoided, will result in death or serious injury.
Indicates a hazardous situation that, if not
avoided, could result in death or serious injury.
Indicates a hazardous situation that, if not
avoided, could result in minor or moderate injury.
NOTICE
Indicates a situation that can cause damage to the
engine, personal property and/or the environment, or
cause the equipment to operate improperly.
NOTE: Indicates a procedure, practice or condition that
should be followed in order for the engine or component
to function in the manner intended.
REPORTING ACCIDENTS
In case of any accident involving the machine of Hunan
Sinoboom Intelligent Equipment Co., Ltd., notify Hunan
Sinoboom Intelligent Equipment Co., Ltd. immediately,
even if no personal injury or property damage occurs in
the accident. Contact Hunan Sinoboom Intelligent
Equipment Co., Ltd. by telephone and provide all nec-
essary details. Failure to notify the manufacturer within
48 hours of the incident involving the machine of Hunan
Sinoboom Intelligent Equipment Co., Ltd. may void the
product's warranty.
NOTICE
Thoroughly inspect the machine and all its functions
after any accident. Make sure to test it first from the
ground controller and then from the platform control-
ler. Ensure the machine's lifting height does not ex-
ceed 3 m (9.8 ft) until all damage has been repaired
and all controllers operate properly.

© Mar. 2022 1-2 GTJZ0612E&0812E&1012E&1212E Maintenance Manual
SAFETY
ELECTROCUTION
HAZARDS
NOTE: This machine is not insulated and does not have
an electric shock protection function.
All operators and managers shall comply with national
or local regulations regarding the minimum safe dis-
tance of live conductors above the ground. In the ab-
sence of such requirements, operators and managers
should follow the minimum safety distance require-
ments in Table 1-1 Minimum Safe Distance, page 1-
2.
ELECTRICAL SHOCK HAZARDS
• Always maintain a safe distance
from power lines and electrical
equipment in accordance with ap-
plicable government regulations
and see Table 1-1 Minimum Safe
Distance, page 1-2.
• Consider platform movement,
wire swinging or drooping, be-
ware of strong winds or gusts,
and do not operate the machine
when there is lightning or heavy
rain.
• If the machine comes into contact
with live wires, keep away from
the machine. Personnel on the
ground or on the platform must
not touch or operate the machine
until the power is switched off.
• Do not use the machine as a
ground wire during welding and
polishing operations.
Table 1-1 Minimum Safe Distance
Voltage
(Phase to Phase, kV)
Minimum Safe Distance
(m/ft)
0-50 3.05 (10)
50-200 4.60 (15)
200-350 6.10 (20)
350 -500 7.62 (25)
500 -750 10.67 (35)
750 -1000 13.725 (45)
TIPPING HAZARDS AND
RATED LOAD
Maximum rated load bearing capacity of the platform:
Table 1-2
GTJZ0612E
Platform assembly 550 kg (1213 lb)
Extending: Extension only 120 kg (265 lb)
GTJZ0812E
Platform
assemblyRetracting 450 kg (992 lb)
Extending: Extension only 120 kg (265 lb)
GTJZ1012E
Platform assembly 320 kg (705 lb)
Extending: Extension only 120 kg (265 lb)
GTJZ1212E
Platform assembly 320 kg (705 lb)
Extending: Extension only 120 kg (265 lb)

SAFETY
GTJZ0612E&0812E&1012E&1212E Maintenance Manual 1-3 © Mar. 2022
TIPPING HAZARDS
• Personnel, equipment and materi-
als on the platform must not ex-
ceed the maximum load capacity.
• Only raise or extend the platform
when the machine is on solid, lev-
el ground.
• Do not use the tilt alarm as a level
indicator. The tilt alarm on the
platform will sound only if the ma-
chine is heavily tilted. If the tilt
alarm sounds:
–Be very careful to lower the
platform. Transfer the machine
to solid, level ground. Do not
change the level or limit
switch.
• Do not drive faster than 0.8 km/h
(0.5 mph) when the platform is
raised.
• When the platform is raised, the
machine cannot travel on uneven
terrain, unstable surfaces or in
other dangerous conditions.
• Do not operate the machine dur-
ing strong winds or gusts, and do
not increase the surface area of
the platform or load. Increasing
the area exposed to the wind will
reduce the stability of the
machine.
• When the machine is on rough
ground, with gravel or other un-
even surfaces, or near holes and
steep slopes, use caution and re-
duce the speed.
• When on the platform do not push
and pull objects outside of it. The
maximum lateral force allowed is:
GTJZ0612E: 400N (90 lbf) indoor/
outdoor
GTJZ0812E: 400N (90 lbf) indoor/
outdoor
GTJZ1012E: 400N (90 lbf) indoor/
200 N (45 lbf)
outdoor
GTJZ1212E: 400N (90 lbf) indoor/
200 N (45 lbf)
outdoor
TIPPING HAZARDS
• Do not change any machine parts
that may affect safety and
stability.
• Do not replace key parts that af-
fect machine stability with parts of
different weights or
specifications.
• Do not modify or change moving
aerial platforms without the manu-
facturer’s prior written
permission.
• On the platform, do not attach an
additional device for placing tools
or other materials to the guardrail.
This will increase the platform
weight, surface area and load.
• Do not place on, or fasten to, any
overhanging load to any part of
this machine.
• Do not place ladders or scaffold-
ing on the platform or any parts of
the machine.
• Do not use the machine on a mov-
ing or active surface or on a ve-
hicle. Ensure all tires are in good
condition, the slotted nuts tight-
ened and the cotter pins
complete.
• Do not use a battery that weighs
less than the original lead acid
battery (30kg [66lb]) or lithium bat-
tery (60kg [132lb]). Do not use a
battery that weighs less than the
original lead acid battery (40kg
[88lb]) or lithium battery (60kg
[132lb]). The battery not only pro-
vides power, but also serves as a
counterweight. The battery is vital
to maintaining the stability of the
machine.
• Do not use a platform to propel
machines or other objects.
• Do not let the platform touch near-
by objects.
• Do not tie off the platform with
rope or other binding materials to
nearby objects.
• Do not put a load outside the
platform.
• Do not operate the machine when
the chassis doors are open.

© Mar. 2022 1-4 GTJZ0612E&0812E&1012E&1212E Maintenance Manual
SAFETY
TIPPING HAZARDS
• When the platform is caught or
stuck or when other objects in the
vicinity impede its normal move-
ment, do not use the platform con-
troller to lower the platform. If you
intend to lower the platform with
the ground controller, you must
operate it only after all personnel
have left the platform.
WORK ENVIRONMENT
HAZARDS
UNSAFE JOBSITE HAZARDS
• Do not operate the machine on
surfaces, edges or potholes that
cannot bear the weight of the ma-
chine. Raise or extend the plat-
form only when the machine is on
firm, flat ground.
• 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 while lifting
the platform, be very careful when
lowering the platform. Do not
change the level or limit switch.
• Running speed should not exceed
0.8 km/h (0.5 mph) when the plat-
form rises.
• If the machine can be used out-
doors, never operate it during
strong winds or gusts. Do not lift
the platform when the wind speed
exceeds 12.5 m/s (28 mph). If the
wind speed exceeds 12.5 m/s (28
mph) after the platform is lifted,
fold the platform and do not con-
tinue to operate the machine.
• Do not use any device that may in-
crease the wind load on the
machine.
• Never travel on uneven terrain or
unstable surfaces or in other dan-
gerous conditions when raising
the platform.
• When the machine retracts, be
careful and slow down when the
machine is moving on uneven ter-
rain, crushed stone, unstable or
smooth surfaces, steep slopes
and near cave entrances.
• Do not drive or lift the machine on
slopes, steps or vaulted surfaces
that exceed the maximum climb-
ing capacity of the machine.
Before or during machine operation, check the jobsite
for possible hazards and pay attention to the environ-
mental restrictions, including flammable and explosive
gas/dust. If the machine is to be used in any other appli-
cations, or by any other means, other than those

SAFETY
GTJZ0612E&0812E&1012E&1212E Maintenance Manual 1-5 © Mar. 2022
specified by Sinoboom, it must be approved or guided
by the manufacturer.
Table 1-3
BEAUFORT
NUMBER
METERS/
SECOND
MILE/
HOUR DESCRIPTION GROUND CONDITION
0 0～0.2 0～0.5 Calm Calm. Smoke rises vertically.
10.3～1.5 1～3Light air Wind motion visible in smoke.
2 1.6～3.3 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. Small
branches begin to move.
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.
NOTICE
Maximum climbing ability is suitable for machines
with platform retracted.
Maximum Slope:
GTJZ0612E: 25% (14°)
GTJZ0812E: 25% (14°)
GTJZ1012E: 25% (14°)
GTJZ1212E: 25% (14°)
Climbing capacity means the maximum allowable tilt
angle of the machine when it is on solid ground and
the platform is only capable of carrying one person.
As the weight of the machine’s platform increases,
the machine’s climbing capacity reduces.
UNSAFE OPERATION
HAZARDS
At a minimum, operators must operate and maintain the
machine as stated in the Operation Manual and the
Maintenance Manual in addition to following more strin-
gent industry regulations and workplace rules. Never
engage in unsafe machine operation.
Do not use the machine in the following situations:
•Unrelated personnel/equipment is present in the
working envelope of the machine.
•Use as a crane (except the custom-made ones with
such functions).
•Use on the truck, trailer, tracked vehicle, ship, scaf-
fold and the like without written consent by the man-
ufacturer or a qualified professional.
•Improper securing of the machine to another object
by just sitting it against, fastening or binding.
•Stunt or imprudent use of the machine.
•Overloaded or over-moment situation.
•Other situations as specified in the Operation Man-
ual and the Maintenance Manual.

© Mar. 2022 1-6 GTJZ0612E&0812E&1012E&1212E Maintenance Manual
SAFETY
UNSAFE OPERATION HAZARDS
• Do not push any object outside
the platform. The maximum lateral
force allowed is:
GTJZ0612E: 400N (90 lbf) indoor/
outdoor
GTJZ0812E: 400N (90 lbf) indoor/
outdoor
GTJZ1012E: 400N (90 lbf) indoor/
200 N (45 lbf)
outdoor
GTJZ1212E: 400N (90 lbf) indoor/
200 N (45 lbf)
outdoor
• Do not change any machine parts
that may affect safety and
stability.
• Do not replace key parts that af-
fect machine stability with parts of
different weights or
specifications.
• Do not change or modify moving
aerial platforms without the manu-
facturer’s written permission.
• On the platform, do not attach an
additional device for placing tools
or other materials to the guardrail.
This will increase the platform
weight, surface area and load.
• Do not put ladders or scaffolding
on the platform or any part of this
machine.
• Do not use additional devices to
increase the working height of the
machine.
• Do not use the machine on any
mobile or movable surface or ve-
hicle. Ensure all tires are in good
condition, the slotted nuts tight-
ened and the cotter pins
complete.
• Do not use a battery that weighs
less than the original lead acid
battery (30 kg [66 lb]) or lithium
battery (60kg [132lb]). Do not use
a battery that weighs less than the
original lead acid battery (40kg
[88lb]) or lithium battery (60kg
[132lb]) about GTJZ1212E. The
battery not only provides power,
but also serves as a
UNSAFE OPERATION HAZARDS
counterweight. The battery is vital
to maintaining the stability of the
machine.
• Do not place or attach any sus-
pended load onto any part of the
machine.
• Do not use the machine as a
crane.
• Do not use the platform to push
the machine or other objects.
• Do not allow the platform to touch
nearby objects.
• Do not tie the platform onto near-
by objects.
• Do not put the load outside the
platform.
• When the platform is caught or
stuck or when other objects in the
vicinity impede its normal move-
ment, do not use the platform con-
troller to lower the platform. If you
intend to lower the platform with
the ground controller, you must
operate it only after all personnel
have left the platform.
• Do not operate the machine when
the chassis door box is open.
• When one or more of the ma-
chine’s tires are off the ground,
evacuate all personnel before at-
tempting to stabilize the equip-
ment. Use a crane, forklift or other
suitable apparatus to stabilize the
equipment.
FALL HAZARDS
At a minimum, operators must operate and maintain the
machine as stated in Operation Manual and in the
Maintenance Manual in addition to following more
stringent industry regulations and workplace rules.