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NOMAD SELF ERECTING TOWER
CRANES
TK32 Foldable Mobile Tower Crane
User Manual
Version 2 20.04.2018
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To Our Users
Thank you for choosing our foldable tower crane. Before using this machine, please read and
fully understand the contents of this manual, comply strictly with the relevant provisions of the
manual.
This manual gives you details on the safety information, important technical parameters, safe
operation, etc. of the foldable mobile tower crane. It is designed to help users safely operate the
folding mobile tower crane and make the machine fully efficient during operation. Please keep this
manual in order to be able to access it at any time.
Do not attempt to operate and repair the machine until you have read and understood the
contents of this manual.
If you have any questions, please contact our local Repair engineers, we will provide you with
timely and effective technical support. Our company will not assume any adverse consequences
arising from inadequate operation according to the provisions of this manual.
The user manual is an integral part of the product. When you decide to transfer this machine, it
is important to transfer this manual to the assignee at the same time.
The contents of the user manual have been protected by intellectual property and are not
allowed to be copied or used for other purposes without permission.
Due to the continuous improvement and upgrading on product design and product
specifications difference, the details of some pictures and text in this manual may differ from the
products you own. If you are in doubt, please contact your local service engineer.
Our company reserves the right to revise the contents of the User Manual due to technical
improvements, subject to change without prior notice.
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Thank you very much for your trust and support of our products, we sincerely wish you all the
best!
safety Information Description
Indicating that if not avoided will lead to death or serious injury to an
emergency situation.
Indicating that if not avoided will lead to death or serious harm to a
potential hazard situation.
Indicates that there is a potential hazard that could result in minor or
moderate injury if not avoided.
Indicates a risk that is not related to personal injury (eg property damage).
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Content
Chapter 1 Overview of Tower Cranes .................................................................................................................... 1
1.1 Overview .......................................................................................................................................................... 1
1.2 The composition and significance of crane model ........................................................................................... 1
Chapter 2 Jib Crane description .............................................................................................................................. 3
2.1 Main parts and configuration description……………………………………………………………………...3
2.2 Tower Crane technical performance ................................................................................................................. 6
2.3 Technical performance parameters ................................................................................................................ 7-9
Chapter 3 Safety Guidance ..................................................................................................................................11
3.1 Safety tips and Signs ........................................................................................................................................11
3.2 Foldable mobile tower crane safety hoisting operation procedures .................................................................11
3.3 Tower crane safety operation .................................................................................................................... 13
3.4 Workplace requirements ................................................................................................................................. 13
3.5 The usage of the hook ..................................................................................................................................... 16
3.6 Power supply .................................................................................................................................................. 16
3.7 Earthing connection. ....................................................................................................................................... 17
3.8 Study of the crane under windy conditions..................................................................................................... 17
Chapter4 Tower crane extension and retraction .................................................................................................... 18
4.1 Outrigger operation ......................................................................................................................................... 18
4.2 The tower crane extension .............................................................................................................................. 25
4.3 Retraction Operation ....................................................................................................................................... 31
Chapter 5 Usage of the crane ................................................................................................................................ 33
5.1 Precautions before using ................................................................................................................................. 33
5.2 Checkings and verifications ............................................................................................................................ 37
5.3 Instructions for working with the crane .......................................................................................................... 38
5.2 Hoisting mechanism operation ....................................................................................................................... 42
5.3 Slewing mechanism operation ........................................................................................................................ 43
5.4 Luffing mechanism operation ......................................................................................................................... 46
Chapter 6 Safety Devices .................................................................................................................................... 49
6.1 Short circuit and overcurrent protection ......................................................................................................... 49
6.2 Voltage protection ........................................................................................................................................... 49
6.3 Hoist Limit……………………………………………………………………………………………………...50
6.4 Trolley mechanism limit ................................................................................................................................. 51
6.5 moment limiter ............................................................................................................................................... 52
6.6 Weight limiter ................................................................................................................................................. 52
Chapter 7 Repair & Maintanance ........................................................................................................................54
7.1 Repair and maintanance of the machine……………………………………………………………………..54
7.2 Repair and maintanance of wire ropes ....................................................................................................... 55-64
Chapter 8 Repair and maintanance of the hydraulic system……………..………………………………..…65-68
8.1 Repair and maintanance of the electrical system………………...………………………………………68-69
8.2 Maintenance schedule for the crane………………………………………………………………………68-73
8.3 Training………………………………………………………………………………………………….…73-76
Chapter 9 Troubleshooting……………………………………………………………..………………………73-81
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9.1 Schematic for hydraulic system ...................................................................................................................... 82
9.2 Schematic for electrical system ................................................................................................................. 83-89
Chapter 10 wire rope reeving for trolley and Hoist ............................................................................................ 90-92
10.4 Hook reeving 2 fall 4 fall ................................................................................................................................. 93
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Chapter 1 Overview of self-erecting Cranes
1.1 Overview
TK32 self-erecting tower crane is combined a variety of fixed tower cranes with majority
truck cranes based on successful experience, through absorbing the latest scientific and
technological achievements at home and abroad, and advanced technology, our company
developed the self-erecting tower crane.
The cranes include horizontal boom, column, hydraulic legs, trolley, low-level slewing
(360°rotation), wireless remote control, automatic extension and retraction of the crane.
Boom length 32m; maximum Hoisting capacity is 4t, the maximum rated Hoisting
moment is 40t.m. It is generally applied to residential building below 5 story’s, villas, factories
and bridges constructions.
The crane can be transported by 1.1m high drop-deck trailer & 1 x crane truck
. The assembly and disassembly process can be carried out using 1 crane truck which
greatly reduces the installation cost of construction equipment. The foldable tower crane is an
ideal Hoisting machine for building construction to save energy, lower labor costs and reduce
transportation.
The tower crane is equipped with various safety protection devices, including the Hoisting
moment limiter, the maximum weight limiter, the rotation limiter and the Trolley limiter, etc to
ensure the crane safe.
TK32 type folding tower crane advanced parameters, reliable performance modern in
appearance & excellent quality, its design does not only focus on a wide range of small and
medium-sized construction units of the requirements, with simple and practical price reasonable
advantages, but also To meet the low - rise housing, industrial plants, bridge construction
requirements.
1.2 The composition and significance of crane model
The composition and significance of the crane model are shown in Figure 1.1
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fig1.1 The composition and significance of crane model
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NO.
Item
NO.
Item
NO.
Item
1
6
Hoisting
mechanism
11
Outrigger
2
Luffing mechanism
7
Electrical System
12
Cable system
3
Counter Weight
8
Hydraulic system
13
Column
4
Trailer frame
9
Rotary table
14
Hoisting hook
5
10
Rotation
mechanism
15
Trolley truck
Chapter 2 Jib Crane description
2.1: Main parts and configuration description
2.1.1: Machine main parts schematic diagram
The main components of the crane are shown in Figure 2.1. The main parts are shown in
Table 2.1.
fig 2.1 The main components of the crane
table 2.1 The main parts are shown in Table 2.1.
Jib
Frame
2.1.2 Brief description of jib crane structure
The machine consists of metal structure, mechanical transmission, electrical control and
safety protection device. The metal structure includes five jib sections, two columns, rotary table,
counterweight, frame, outrigger, trolley and so on. According to the different characteristics of
each part is summarized as follows:
2.1.2.1 :Jib
chord, diagonal struts, horizontal struts are seamless steel pipe. Lower chord upper surface is
The jib is made of variable cross-section isosceles triangular structure, upper chord, lower
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guaranteed to be flat and straight, in order to act as the trolley track. The jib is light in weight,
small cross-section, small wind-resistance as shown in Figure 2.2. The jib is folded when out of
work, once it starts to work use the hydraulic mechanism to rotate the jib to the flat state. The jib
full expanded length is 32m and the folded length is 14.5m.
fig2.2 Jib diagram
2.1.2.2: Column
The column consists of two quadrilateral box-type columns which is welded by three parts
the head, tail and barrel. The structure is compact, the load capacity is strong and the installation
is convenient. Shown in 2.3. The docking and folding of the two columns is driven by the
hydraulic system, which is simple in operation and fast in efficiency.
fig2.3 Column diagram
2.1.2.3: Rotary table
The rotary table is steel-welded, the front and the column is connected by high-strength
shaft so does the upper section and the pole, Erecting mechanism is installed in the middle . The
lower part is connected by 32 M22 high strength bolts with the inner ring of the slewing support.
On one side of the rotary table is the slewing mechanism , from which the pinion is engaged with
the slewing outer gear.
On the other side we have installed the hydraulic pump and an electrical control box. The rear
deck is for the counterweight.
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2.1.2.4 Counterweight
The counterweight consists of three base components with a counterweight of 2.2 t at the
bottom and a left and right counterweight with a weight of 1400kg each the remaining 8
counterweights all weigh 1600kg each
Total 17.8 t.
2.1.2.5: Frame
The frame is made of welded steel plate, the upper part of the rotary table is connected
with 32 M22bolts and the lower part is connected by the high-strength pin with double-bridge.
You can quickly remove the double bridge conveniently and fast when it transported by flatbed
trailer. In the four corners of the frame, using the high-strength pin to connect four outriggers
separately.
2.1.2.6: Outriggers
NOTE THE CRANE IS EQUIPED WITH 2 DIFFERENT TYPES OF OUTRIGGER
PADS THE HIGHER SET ARE ONLY TO BE USED FOR LOADING AND
UNLOADING FROM TRANSPORT AND IT IS PROHIBITED FOR USE FOR
OPERATION OF THE CRANE IN SERVICE
Outrigger are equipped with full hydraulic legs these are connected to the slewing table
by the high-strength pin. You can quickly fold the outrigger legs conveniently and fast when it
transported by drop deck trailer.
2.1.2.7: Trolley
The trolley is a steel structure that drives the hook and Hoisting objects to reciprocate
along the jib with four wheels (each side has 2 wheels), and the track of the trolley wheels are
the lower chord of the jib.
2.1.2.8: Electrical System
Adopting a PLC control system, the crane is equipped with a variety of safety integrating
mechanical with electrical products, adapting to the harsh construction environment.
All of the above ensure the crane will perform reliably and safely.
The electrical control system uses professional electrical components to introduce foreign
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