Clemens Technologies HEXAGON 723 User manual

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User’s manual
HEXAGON
Compact cultivator
Item number: CL723.000000, CL724.000000, CL729.000000
Manufacturer:
Maschinenfabrik
CLEMENS GmbH & Co.KG
Rudolf - Diesel - Straße 8
D-54516 Wittlich / Germany

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Index
Page
1Preface...................................................................................................................................3
2EC Declaration of Conformity...............................................................................................4
3Machine description: HEXAGON cultivator.........................................................................5
4Commissioning and working with the HEXAGON...............................................................6
4.1 Before initial commissioning ............................................................................................6
4.2 Attachment to tractor .......................................................................................................6
4.3 Working with the HEXAGON cultivator ............................................................................6
4.4 Mounting option C.DRIVE................................................................................................8
4.4.1 Mounting brackets for C.DRIVE components..........................................................................8
4.4.2 Application of the brackets to the HEXAGON cultivator..........................................................9
5Maintenance and care.........................................................................................................10
6Notes on safety....................................................................................................................11
7Technical data: HEXAGON cultivator.................................................................................12
8Spare parts list ....................................................................................................................13
8.1 Fixing points and hydraulic hoses (all models)...............................................................13
8.2 Basic frame with sliding units and hydraulic width adjustment (all models) ....................14
8.3 Master and slave cylinder for HEXAGON 729................................................................16
8.4 Master and slave cylinder for HEXAGON 723................................................................17
8.5 Master and slave cylinder for HEXAGON 724................................................................18
8.6 Extensions, guard rails, lower link extension..................................................................19
8.7 Disk harrow with mounting frame...................................................................................20
8.8 Accessories for disk harrow...........................................................................................21
8.9 Mounting plates for: RADIUS, central tool, chisel body..................................................22
8.10 Cultivator tine C-shaped with clamp...............................................................................23
8.11 Tine 80x25 complete .....................................................................................................24
8.12 Clamp for pivoting disc colter on tine 80x25...................................................................25
8.13 Set of Bison tines for ripping..........................................................................................26
8.14 Frame for land roller with spindle adjustment.................................................................28
8.15 Land roller Ø400 mm (16“) for open soil ........................................................................29
8.16 Cage rollers Ø400 mm (16“) for green cover..................................................................29
8.17 Support, lower link, support wheel mount ......................................................................30
8.18 Steel support wheel.......................................................................................................31
8.19 Support wheel, pneumatic .............................................................................................32
8.20 Oscillating support wheel, pneumatic.............................................................................34
9List of illustrations ..............................................................................................................36

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1 Preface
Dear Customer!
With the HEXAGON cultivator you have acquired an extremely stable cultivator whose width is hydraulically
adjustable. This ensures optimum adaptation to almost every row width. Further equipment features offered for
the CLEMENS HEXAGON are the possibility of attaching a land roller and mounting a CLEMENS RADIUS weeder
on both sides with or without lateral angle correction (mechanical or hydraulic). Furthermore, you can mount lateral
extensions or a disk harrow.
In order to be able to operate the HEXAGON properly, safely and correctly, this operating manual must be read
before commissioning and the instructions provided must be observed conscientiously.
Please familiarize yourself with how to operate the HEXAGON before use and with any attachments that may be
used.
General note:
The HEXAGON may only be operated when all the protective facilities and safety-related devices (like locking
pins) are installed and operable.
Faults which may reduce the machine safety are to be rectified without delay by qualified staff.
Only use the HEXAGON for soil cultivation by help of a tractor.
Do not change any hydraulic connections on the HEXAGON as this can lead to malfunctions and thus jeopardise
people’s safety.
Only have repairs carried out by your authorised dealer or the CLEMENS customer service. Never make changes
to the machine on your own.
Note:
The manufacturer is not liable if the operating manual is not observed or if inadmissible spare parts are
used.
Furthermore, no modifications, attachments and conversions to the HEXAGON which could impair safety
may be undertaken without the manufacturer’s consent.
Subject to technical change without notice!
2018 CLEMENS GmbH & Co. KG / Germany
All rights reserved

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2 EC Declaration of Conformity
in line with the EC Directive 2006/42/EEC
Manufacturer / Address: CLEMENS GmbH & Co. KG/Maschinenfabrik
Rudolf-Diesel-Straße 8
D-54516 Wittlich/Germany
We herewith declare that the design of:
Machine type: Cultivator HEXAGON
with hydraulic width adjustment
complies with the following relevant provisions (directives:
Machinery directive
2006/42/EC
The following (harmonized) standards have been applied:
Safety of machines
DIN EN ISO 12100:2011-03
Safety of machines
Safety distances against reaching danger areas with the
upper and lower limbs
DIN EN ISO 13857:2008-06
Agricultural Machinery Safety Part 1
General requirements
DIN EN ISO 4254-1:2016-09
Agricultural Machinery Safety Part 5
Powered soil tillage implements
DIN EN ISO 4254-5:2011-05
Fluid technology
General rules and safety requirements for hydraulic
systems and their components
DIN EN ISO 4413:2011-04
Safety of machines
Minimum distances to avoid squeezing body parts
DIN EN 349:2008-09
The following national technical standards and specifications were applied:
------------
Details on the authorized signatory:
Name, first name: Clemens, Bernhard
Position: Managing Director
Details on the authorized person for EC documentation:
Name, first name: Loch, Christof
Position: Technical Director
Wittlich, 10.02.2017 ____________________________
Place, date legally binding signature

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3 Machine description: HEXAGON cultivator
The CLEMENS HEXAGON mainly consists of the following components:
Figure 1 Overall view
The working principle of the CLEMENS HEXAGON is that the working width of the basic frame is infinitely
adjustable with the aid of a master/slave cylinder and can thus be adapted to suit the individual row widths. The
adjustment range is 2 x 270 mm = 540 mm (21“) for HEXAGON 729, 2 x 200 mm = 400 mm (16”) for HEXAGON
723 and 2 x 430 mm = 860 mm (34”) for HEXAGON 724.
In order to work both the right and left vine rows at the same time in one go, it is possible to attach both a left and
right-hand RADIUS All-around weeder.
The mounted land roller or cage roller serves to guide the depth of the HEXAGON tools. When the frame is used
as a pure carrier frame for devices for under-vine care (for example, RADIUS), the depth guidance can also take
place via support wheels.
The height of the chisel body (tine 70 x 20 mm (approx. 2¾” x ¾”) secured with attachment clamp) can be adjusted
so that it can be adapted to the ground conditions. As alternative, CLEMENS offers you also a tine 80 x 25 mm
(approx. 3⅕x 1”) with adjustable angle of the share and especially hardened chisel share. This chisel body can
be used, due to its easy adjustment by clamping sleeves, for undercutting grass (flat angle) as well as for open
soil or for crumbling work (steep angle). In order not to damage the HEXAGON during operation as a result of
large hidden stones, the chisel bodies are fitted with shearing pins and the chisel body can therefore swivel
backwards. The destroyed shearing pins then have to be replaced by new ones.
Tools e.g. chisel bodies
Land roller
Basic frame
Two sliding units
Width adjustment with
master/slave cylinder

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4 Commissioning and working with the HEXAGON
4.1 Before initial commissioning
Carefully study the operating manual of the HEXAGON and the additional devices and familiarise yourself with
the operation of the equipment.
Check to see whether the hydraulic connections fit to your tractor.
Check whether all screws on the HEXAGON are fastened well.
4.2 Attachment to tractor
The HEXAGON should be attached to the tractor on even ground. Please insert the lower and upper link pins of
the appropriate category and secure them with locking pins. Adjust the upper link so that the basic frame is
horizontal.
Please note that oil emerges when the hydraulic line is unscrewed, thus resulting in pollution of the environment.
Therefore, always place a collecting container underneath.
4.3 Working with the HEXAGON cultivator
Before each use check the condition of the hydraulic hoses and replace if necessary. Check moreover the
attachment of the chisel bodies and the state of wear.
The working speed of the HEXAGON depends on the operating conditions, for example, type of ground, working
depth, number of tools etc.
The HEXAGON must be lowered slowly with the three-point hydraulics in order to prevent damage to the
machine.
The height of the land roller can be adjusted mechanically using a spindle and it serves at the same time as a
depth guide. If the machine is used without a land roller and the tractor has not yet been equipped with control
hydraulics, support wheels must definitely be attached on the sides.
The arrangement of the chisel bodies can be varied and adapted to suit the row widths in question. It should be
ensured that the soil can flow well between the individual tools and that any cut wood does not catch. To prevent
clogging, we recommend using extension plates CL729.220000 to increase the distance between the tools.
Figure 2 Chisel body attachment
(1) The attachment bracket for the central tool can be mounted facing the front or the back, depending on the
desired position of the central tool.
(2) The shearing pin is located in the lower series of holes. It shears off when overloaded and must then be
replaced by a new one, possibly together with the washer and nut.
Please use only CLEMENS spare parts for this.
2
1
3

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(3) Clamping sleeves which serve to accommodate M16 screws (shearing screw and attachment screws of the
clamps) are located in the bottom series of holes. If attachment clamps are used, clamping sleeves must also be
inserted in the top holes. It must be ensured that the slit in the clamping sleeve always points upwards.
If you work with Bison tines, always mount them on the base frame, never on the sliding parts!
In order to be also able to work broad rows, extensions with hexagon profile, like the basic frame, can be
attached. They have a length of 200 mm (CL729.240000, approx. 8”) resp. 400 mm (CL729.140000, approx. 16“)
and allow the mounting of 2 additional chisel bodies on each side. CLEMENS points out that only one of these
extensions is allowed on each side.
For the undervine care, RADIUS or Rotary Brush/MULTICLEAN can be attached at both sides. In place of a land
roller a rotary cultivator, rotary harrow or sowing machine, for example, are possible. If the additional machine is
driven by a PTO shaft, for this purpose the attachment bracket for the central tool must be dismantled so that the
propeller shaft can be passed through.
If a two-sided CLEMENS RADIUS is used, please observe the connection instructions for mounting in the
operating manual of the RADIUS. The fastening for RADIUS has to be mounted on the outside (see Figure 3).
Figure 3 RADIUS attachment
If you have acquired a HEXAGON without hydraulic width adjustment, retrofitting is possible at any time. You
can also carry out the assembly yourself. First push the left-hand side sliding unit into the frame and tighten the
appropriate adjusting screws slightly. Then push the right-hand side sliding unit into the frame. Secure the
master/slave cylinder, push the sliding parts right together and then evenly tighten the clamping levers at the top
and bottom.
Figure 4 Hydraulic width adjustment
Master/slave cylinder
Adjusting screw
Sliding unit,
right-hand side
Sliding unit,
left-hand side

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4.4 Mounting option C.DRIVE
In order to make optimum use of the advantages of the CLEMENS C.DRIVE controller on the HEXAGON
cultivators, parts of the hardware provided for this purpose must be mounted on the respective cultivator frame,
depending on the equipment.
The 2 variants of the bracket shown are intended for this purpose.
Components from the C.CONNECT line (relay boxes, distribution boxes, etc.) are combined with components
from the C.MOTION group (control unit blocks, hydraulic blocks, flow dividers, etc.) and attached to these
brackets.
4.4.1 Mounting brackets for C.DRIVE components
Figure 5 Mounting brackets for C.DRIVE
Both holder variants can be attached to the base frame of the cultivator. Depending on the mounting situation,
these holders can be mounted either on the right or on the left (see Figure 6).
Figure 6 Mounting points of the brackets
The following pages show examples of how these components are mounted on the basic frame of the cultivator
with the control units and the hydraulic components.
2
1

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4.4.2 Application of the brackets to the HEXAGON cultivator
1. Support small for HEXAGON (CL846.402000)
Figure 7 Mounting with support small
2. Support large for HEXAGON (CL846.404000)
Figure 8 Mounting with support large
Relay box
Control unit block 4DA
1
Flow divider
2
Hydraulic block 5
Cable set
Cable set
Relay box

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5 Maintenance and care
The CLEMENS HEXAGON is designed so that it requires a minimum of maintenance and care.
However, the following points should be observed:
After the first 2 hours of operation, all screws are to be checked for a tight fit, afterwards check them before every
day of operation.
At the same time all the adjusting screws are to be retightened. The adjusting screws should be checked from
time to time for a tight fit (see Figure 4). The sliding units should be mobile without too much floating.
When cleaning the HEXAGON with a high-pressure cleaner, please make sure that the high-pressure jet is not
aimed at bearing and sealing points or hydraulic connections. This can result in damage and premature failure.
The hydraulic oil should be filtered through a filter at a point in the hydraulic system of the tractor.
The HEXAGON should be stored in a dry place and on level and firm ground (risk of tipping over). Care must be
taken to ensure that the machine is moved together to protect the piston rods of the hydraulic cylinders against
damage and corrosion.
The guideways of the hexagonal profiles are lubricated in the factory and should be lubricated after one or two
days of operation, depending on the intensity of work. This is done by help of the two lubricating nipples next to
the upper link hitch. For this purpose, the HEXAGON must be moved together as otherwise not all the bearing
points can be reached by the lubricant.
As the spindle for the mechanical adjustment of the land roller has no lubricating nipples, it should be dismantled
at least once a year for being lubricated.