BSL strautmann Zelon CFS 2501 Quick guide

Translation of the Original
Operating Instructions
Short-cut forage wagon
Short-cut forage wagon with beaters
Zelon CFS 2501, 2901, 3301
Zelon CFS 2501 DO, 2901 DO, 3301 DO
74400904 0.000
04.15

EC Declaration of Conformity
according to the EC machinery directive 2006/42/EC, Annex II, 1.A
Manufacturer:
B. Strautmann & Söhne GmbH u. Co. KG
Bielefelder Str. 53
D-49196 Bad Laer
Legal person established within the EC and authorized to compile the technical documentation:
B. Strautmann & Söhne GmbH u. Co. KG
Bielefelder Str. 53
D-49196 Bad Laer
Description and identification of machine:
Designation:
Short-cut forage wagon / Short-cut forage wagon with beaters
Function:
Cutting, charging, transport and distribution of green and dried-out forage
Model:
Zelon CFS / Zelon CFS DO
Type:
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO
Vehicle/Machine ID number:
W09744000_0S38001 - W09749000_0S38999
Trade name:
Zelon CFS / Zelon CFS DO
We hereby explicitly declare that the machine complies with all relevant provisions of the following
EC directives:
2006/42/EC:2006-05-17 EC machinery directive 2006/42/EC
2004/108/EC:2004-12-15 (Electromagnetic compatibility) Directive 2004/108/EC of the European
Parliament and the Council dated 15 December 2004 for approximation
of laws of the member states on the electromagnetic compatibility and for
repeal of directive 89/336/EEC
Bad Laer, 07.01.2015
R. Kleine Niesse
Chief Designer
Vehicle Technology
Dr. J. Marquering
Head of Development
Dipl.-Kfm. W. Strautmann
Managing Director
Dipl.-Wirt.-Ing. P. Strautmann
Managing Director

Identification data
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
3
Identification data
Please enter the machine’s identification data here. They are registered on the type plate.
Manufacturer: B. Strautmann & Söhne GmbH u. Co. KG
Vehicle/Machine ID number: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Type:
Year of manufacture:
Manufacturer’s address
B. Strautmann & Söhne GmbH u. Co. KG
Bielefelder Straße 53
D-49196 Bad Laer
Phone: + 49 (0) 5424 802-0
Fax: + 49 (0) 5424 802-64
E-mail: [e-mail]
Spare parts order service
B. Strautmann & Söhne GmbH u. Co. KG
Bielefelder Straße 53
D-49196 Bad Laer
Phone: + 49 (0) 5424 802-30
Fax: + 49 (0) 5424 802-64
E-mail: [e-mail]
Spare parts catalogue online: www.strautmann-elise.de
Please always refer to the vehicle/machine ID number of your machine when ordering spare parts.
Formal information about the operating instructions
Document number: 74400904 0.000
Date of compilation: 04.15
© Copyright B. Strautmann & Söhne GmbH u. Co. KG, 2015
All rights reserved.
Reproduction, even in excerpts, only allowed with the permission of B. Strautmann & Söhne GmbH u.
Co. KG.

Foreword
4
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
Foreword
Dear customer,
You have decided in favour of a quality product from the large B. Strautmann & Söhne GmbH u. Co.
KG product range. We thank you for the confidence you have shown in us.
Upon receipt of the machine, please check for transport damage or missing parts! Check the delivered
machine for its completeness, including the ordered optional extras, by means of the delivery note.
Only immediate complaints will give reason to compensation!
Read and observe these operating instructions and any other included operating instructions for
individual machine components before the first start-up; in case of doubt, the details and information
contained in such sub-supplier documentation shall prevail! In particular observe the safety
instructions, thus being able to fully benefit from the advantages of your recently acquired machine.
Please make sure that all operators of the machine have read these operating instructions before
starting the machine.
The machines are available with various optional extras. Due to the individual equipment of your
machine, not all descriptions included in these operating instructions apply to your machine. Optional
extras are marked in these operating instructions and are available at extra cost.
In case of any inquiries or problems, please refer to these operating instructions or call us.
Regular service and maintenance and timely replacement of worn-out or damaged parts will result in a
longer service life of your machine.

Contents
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
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Contents
1User information 10
1.1 Purpose of document 10
1.2 Keeping of operating instructions 10
1.3 Location details in the operating instructions 10
1.4 Applied modes of specification 10
1.5 Applied terms 11
1.6 Activity-related safety instructions and important information 12
1.6.1 Activity-related safety instructions 12
1.6.2 Important information 12
2Product description 13
2.1 General overview of machine 14
2.2 Drawgear 15
2.3 Conveying unit 16
2.4 Brake system 17
2.4.1 Dual-line compressed-air brake system with mechanical automatic load-sensitive
brake (ALB) regulator 17
2.4.2 Braking axle 18
2.5 Stop-cock for securing tailgate 18
2.6 Supply lines between tractor and machine 19
2.6.1 Marking of hydraulic supply lines 20
2.7 Type plate 20
2.8 Technical data 22
2.8.1 General data 22
2.8.2 Tyre pressure 23
2.8.3 Required tractor equipment 23
3Safety instructions 25
3.1 Correct use 25
3.2 Safety-conscious working 25
3.3 Organisational measures 26
3.3.1 User’s obligation 26
3.3.2 Operator’s obligation 26
3.3.3 Qualification of operator 27
3.4 Product safety 27
3.4.1 Hazardous areas and dangerous spots 27
3.4.2 Safety-conscious operation of machine 28
3.4.3 Safety and protective devices 28
3.4.4 Structural alterations 28
3.4.5 Spare and wearing parts, auxiliary materials 29
3.4.6 Warranty and liability 29
3.5 Basic safety instructions 29
3.5.1 General safety and accident prevention instructions 29
3.5.2 Hydraulic system 32
3.5.3 Electrical system 32
3.5.4 Propeller shaft operation 33
3.5.5 Hitched machines 34
3.5.6 Brake system 34
3.5.7 Axles 35
3.5.8 Tyres 35
3.5.9 Operation of machine 36
3.5.10 Service and maintenance of machine 36
3.6 Warning and instruction signs 37
3.6.1 Warning signs 37
3.6.2 Instruction signs 42

Contents
6
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
3.7 Risks in case of non-observance of safety instructions and warning signs 45
4Loading of machine 46
4.1 Loading by means of tractor 46
4.2 Loading by means of lifting devices 47
5Commissioning 48
5.1 Check tractor's compatibility 49
5.1.1 Calculate actual values 49
5.1.2 Preconditions for the operation of tractors with rigid drawbar trailers 50
5.1.2.1 Combination options of coupling devices and drawgears 50
5.1.2.2 Calculate actual DC value for combination to be coupled 51
5.1.2.3 Calculate tractor's admissible towing capacity 52
5.2 Secure tractor and machine against accidental starting and rolling 53
5.3 Hydraulic system of machine 54
5.3.1 Connect hydraulic hose pipes 54
5.3.1.1 Open hydraulic system 55
5.3.1.2 Load-sensing mode 55
5.3.2 Disconnect hydraulic hose pipes 56
5.4 Drawbar 56
5.4.1 Adjust mounting height of folding drawbar 56
5.4.2 Couple drawbar 58
5.4.2.1 Bolt-type coupling 58
5.4.2.2 Ball-type coupling and shell 59
5.4.2.3 Tow-hook (hitch hook) and drawbar lug (hitch ring) 59
5.4.3 Uncouple drawbar 60
5.4.3.1 Bolt-type coupling 60
5.4.3.2 Ball-type coupling and shell 60
5.4.3.3 Tow-hook (hitch hook) and drawbar lug (hitch ring) 61
5.5 Mechanical supporting leg 61
5.5.1 Lift mechanical supporting leg to transport position 61
5.5.2 Lower mechanical supporting leg to support position 62
5.6 Propeller shaft 63
5.6.1 Adjust length of propeller shaft to tractor 64
5.6.2 Couple propeller shaft to tractor 65
5.6.3 Uncouple propeller shaft from tractor 66
5.7 Brake system 67
5.7.1 Dual-line compressed-air brake system with mechanical automatic load-sensitive
brake (ALB) regulator 67
5.7.1.1 Connect brake and feed line 67
5.7.1.2 Disconnect brake and feed line 68
5.7.1.3 Release compressed-air brake via release valve 68
5.7.2 Hydraulic service brake system 69
5.7.2.1 Emergency brake valve 70
5.7.2.2 Connect hydraulic brake system 71
5.7.2.3 Disconnect hydraulic brake system 72
5.7.3 Parking brake 72
5.7.3.1 Release / Apply parking brake 72
5.8 Mount control set on the tractor 73
5.8.1 Mount easy-to-use control set on the tractor 73
5.8.2 Mount ISOBUS control set on the tractor 73
5.9 Pick-up 74
5.9.1 Set operating height 74
5.9.2 Set holding-down device with pulley 75
5.10 Crossover conveyor 76
5.10.1 Pull out crossover conveyor 76
5.10.2 Push in crossover conveyor 78
5.11 Open / Close access door 80
5.12 Body 81

Contents
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
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5.12.1 Mount body side panels, ropes and body tarpaulin 81
5.12.2 Unfold / Collapse folding grille 84
5.13 Tailgate with telescopic function 85
5.13.1 Prepare tailgate for telescopic operation 85
5.13.2 Prepare tailgate for normal operation 87
5.14 Activate / Deactivate silage additive pump (with easy-to-use control) 88
6Operation 89
6.1 Easy-to-use control 89
6.1.1 Design 89
6.1.2 Functions of the easy-to-use control 91
6.1.2.1 Switch road travel mode on 92
6.1.2.2 Switch operating mode on 93
6.1.2.3 Switch machine off 94
6.1.2.4 Switch work lights on/off 94
6.1.2.5 Switch automatic charging system on/off 95
6.1.2.6 Switch transport floor on (level I) 96
6.1.2.7 Double feed rate of transport floor for complete emptying (level II) 96
6.1.2.8 Reverse feed direction of transport floor for a short time 97
6.1.2.9 Change feed rate of transport floor 97
6.1.2.10 Open tailgate 98
6.1.2.11 Close tailgate 98
6.1.2.12 Lift folding drawbar 98
6.1.2.13 Lower folding drawbar 99
6.1.2.14 Retract cutting unit 99
6.1.2.15 Extend cutting unit 100
6.1.2.16 Unlock steering axle 100
6.1.2.17 Lock steering axle 100
6.1.2.18 Lift pick-up 100
6.1.2.19 Lower pick-up 101
6.2 ISOBUS control 101
6.2.1 Design of ISOBUS control 101
6.2.2 Display information in Working menu 104
6.2.3 Functions and their symbols 105
6.2.4 Set machine parameters 117
6.2.4.1 Call up SET menu 118
6.2.4.2 Pre-select filling degree of loaded material in cargo space 119
6.2.5 Calibration (ISOBUS control) 119
6.2.5.1 Calibrate automatic charging system 119
6.2.6 Operating hours counter, service hours counter and transported loads counter 120
6.2.6.1 Call up Counter menu 121
6.2.6.2 Reset daily counters 121
7Transport journeys 122
7.1 Transport journeys with partly discharged machine 123
8Use of machine 124
8.1 Charging 125
8.1.1 Charging with easy-to-use control 127
8.1.2 Charging with ISOBUS control 128
8.2 Discharging 129
8.2.1 Discharging with easy-to-use control 129
8.2.1.1 Machine without beaters 129
8.2.1.2 Machine equipped with beaters 130
8.2.2 Discharging with ISOBUS control 132
8.2.2.1 Machine without beaters 132
8.2.2.2 Machine equipped with beaters 133
8.2.3 Determine admissible loading capacity 135
8.2.4 Bulk densities of different materials 135
9Service and maintenance of machine 136
9.1 Operating media 138

Contents
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Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
9.2 Service and maintenance plan - Overview 139
9.3 Cleaning of machine 141
9.4 Lubrication of machine 142
9.4.1 Lubrication plan 143
9.4.2 Check / Top up central lubrication 144
9.5 Check/top up/change gear lubricant oil 145
9.5.1 Feed gearing of transport floor 145
9.5.2 Main gearbox of cutting unit 146
9.5.3 Angular gear of beater unit 146
9.5.4 Check/Top up oil level 147
9.5.5 Change gear lubricant oil 147
9.6 Cutting unit 148
9.6.1 Clean knife security system 148
9.6.2 Remove and install cutting knives 149
9.6.2.1 Remove cutting knives 150
9.6.2.2 Install cutting knives 151
9.6.3 Grind cutting knives 152
9.6.4 Set distance between cutting knives and rotor 152
9.6.5 Check distance between strippers and rotor 154
9.6.6 Set "Cutting unit retracted" sensor 155
9.7 CFS drum 156
9.7.1 Check / Retighten chain tension of CFS drum 156
9.8 Pick-up 156
9.8.1 Align switch rod of pick-up circuit 156
9.8.2 Bleed friction clutch of pick-up 157
9.8.3 Check/Retighten tension of roller chain for pick-up drive 158
9.9 Beaters 159
9.9.1 Check/Retighten tension of roller chains of beaters 159
9.9.2 Readjust jaw clutch of beater circuit 160
9.10 Transport floor 160
9.10.1 Shorten and tighten transport floor chain 160
9.11 Crossover conveyor 162
9.11.1 Tighten / Adjust crossover conveyor 162
9.12 Hydraulic system 163
9.12.1 Depressurize hydraulic system 163
9.12.1.1 Depressurise folding drawbar with drawbar suspension 164
9.12.2 Hydraulic hose pipes 164
9.12.2.1 Marking and period of use of hydraulic hose pipes 164
9.12.2.2 Inspection criteria for hydraulic hose pipes 165
9.12.3 Replace hydraulic filter 165
9.13 Brake system and chassis 166
9.13.1 Check/Clean in-line filters of compressed-air brake system 166
9.13.2 Set compressed-air brake system 167
9.13.3 Drain compressed-air reservoir of compressed-air brake system 168
9.13.4 Set hydraulic brake system 169
9.13.5 Check tyres 170
9.13.6 Change tyres 170
9.13.7 Lubrication and maintenance plan – Chassis 172
9.13.8 Lubricate brake shaft bearing 173
9.13.9 Lubricate standard slack adjuster 174
9.13.10Check clearance of wheel hub bearing 174
9.13.11Check brake linings 175
9.13.12Check brake 175
9.14 Tightening torques 176
9.14.1 Tightening torques for metric screws 176
9.14.2 Tightening torques for wheel nuts 177
10 Remedy of malfunctions 177
10.1 Eliminate clogging at the pick-up and the feeder rotor 177

Contents
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
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10.2 Replace bolt of shear bolt coupling 178
10.3 Emergency manual operation in case of failure of electrical system 178
10.4 Overview of other malfunctions and remedial actions 182
10.4.1 Hydraulics 182
10.4.2 Electrics 183
10.4.3 Working 184
11 Disassembly / Disposal 185
12 Circuit diagrams 186
12.1 Hydraulics 186
12.2 Electronics – Cable harness overview 188
12.3 Electronics – Valves 190
12.4 Electronics – Sensors 192
12.5 Electronics – Work lights 194

User information
10
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
1 User information
The chapter “User information“ provides information about how to use the operating instructions.
1.1 Purpose of document
These operating instructions:
 describe the operation, service and maintenance of the machine,
 provide important information about safety-conscious and efficient handling of the machine.
Please contact us for further inquiries.
1.2 Keeping of operating instructions
The operating instructions are part of the machine.
Therefore, always keep these operating instructions in the machine.
Hand these operating instructions over to the buyer when the machine is sold.
1.3 Location details in the operating instructions
Any directional data in these operating instructions refer to the direction of motion.
1.4 Applied modes of specification
Instructions and responses
Activities which have to be carried out in a predetermined order are specified as numbered
instructions. Always adhere to this order. In some cases, the response of the machine to the
respective instruction is marked by an arrow.
Example:
1. Instruction 1
→ Response of machine to instruction 1
2. Instruction 2
Lists
Lists without predetermined order are specified as lists with bullet points.
Example:
● Item 1
● Item 2
Position numbers in figures
Numbers in parentheses refer to position numbers in figures. The first number refers to the figure, the
second number to the position number in the figure.
Example: (Fig. 3/6) means figure 3, position 6.
Lines of position in figures
Starting from the position numbers, the lines of position refer to the respective components.

User information
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
11
A line without an arrow
head means:
the component can be seen in the figure,
A line with an arrow head
means:
the component cannot be seen in the figure (e.g.
hidden by protective device).
References
An arrow head (►) in front of a sentence indicates a reference to further information elsewhere in the
operating instructions.
Example:
► Also observe the information in the chapter "Technical data", page 22.
1.5 Applied terms
Term
The term means
third person/party
… all other persons apart from the operator.
risk
… the source of a possible injury or damage to health.
manufacturer
… B. Strautmann & Söhne GmbH u. Co. KG.
machine
… Short-cut forage wagon / Short-cut forage wagon with beaters Zelon
CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO.
operating element
… the component of an operating element system which is directly
actuated by the operator, e. g. by pressing. An operating element may be
an adjusting lever, a key button, rotary switch, key etc.

User information
12
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
1.6 Activity-related safety instructions and important information
Activity-related safety instructions and important information are included in the operating instructions.
Signal words and symbols help to identify activity-related safety instructions and important information
at a glance.
1.6.1 Activity-related safety instructions
Activity-related safety instructions:
 warn about risks which may occur in a certain situation or in connection with a certain behaviour,
 are directly mentioned in front of a hazardous activity in the individual chapters,
 are marked by the triangular hazard symbol and a preceding signal word. The signal word refers
to the seriousness of the risk.
DANGER
DANGER
marks a direct danger bearing a high risk, which will cause most
serious bodily injury (loss of limbs or long-term harm) or even
death if it is not prevented.
Non-observance of the safety instructions marked by “DANGER“
directly causes most serious bodily injury or even death.
WARNING
WARNING
marks a possible danger bearing a moderate risk, which might
cause most serious bodily injury or even death if it is not
prevented.
Non-observance of the safety instructions marked by
“WARNING“ may cause most serious bodily injury or even
death.
CAUTION
CAUTION
marks a possible danger bearing a low risk, which might cause
light or moderate bodily injury or material damage if it is not
prevented.
Non-observance of the safety instructions marked by
"CAUTION" may cause light or moderate bodily injury or
material damage.
1.6.2 Important information
Important information:
 provides details for proper use of the machine,
 provides user hints for optimum use of the machine,
 is marked by the following symbols.

Product description
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
13
IMPORTANT
marks an obligation to behave in a particular manner or to act in
a certain way, in order to use the machine properly.
Non-observance of these instructions may cause malfunctions
of the machine or in its vicinity.
INFORMATION
marks user hints and particularly useful information.
This information will help you to use all functions of your
machine in the best possible way.
2 Product description
This chapter includes
 comprehensive information about the machine design,
 the designations of the individual assemblies and operating elements.
Please read this chapter in the immediate vicinity of the machine if possible, thus acquainting yourself
with the machine in the best possible way.
The machines are available with various optional extras. Due to the individual equipment of your
machine, not all descriptions included in these operating instructions apply to your machine. Optional
extras are marked in these operating instructions and are available at extra cost.

Product description
14
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
2.1 General overview of machine
Fig. 1

Product description
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
15
(1) Beater
(2) Tailgate
(3) Body side panels
(4) Ropes
(5) Body tarpaulin
(6) Tubular support
(7) Load-protection bars with automatic
charging system *
(8) Front grating
(9) Electro-hydraulic control block
(10) Switch for silage additive pump * (only with
easy-to-use control set)
(11) Hydraulic filter
(12) Folding drawbar
(13) Pressure accumulator for drawbar
suspension *
(14) Central lubrication for spur gear of feeder
rotor and roller chains of CFS drum and
pick-up drive
(15) Supporting leg
(16) Holding-down device with pulley
(17) Pick-up
(18) Guide wheel
(19) Additional guide wheel
(20) Main gearbox for conveying unit
(21) Spur gear for feeder rotor
(22) Access door with ladder
(23) Front angular gear (for beaters)
(24) Rear angular gear (for beaters)
(25) Feed gearing for transport floor
(26) Parking brake
(27) Braking axle
(28) Passive steering axle *
(29) Side reflector
(30) Chock
(31) Multi-function light with rear and brake
light, reversing light, indicator, side-marker
lamp, reflector
(32) License plate light
(33) Speed sign
(34) Triangular reflector
(35) Knife bag for unused cutting knives, tools:
knife lever, mounting lever
(36) Drawgear
* Optional extra
2.2 Drawgear
(1) Drawbar lug 40
(2) Shell 80 *
(3) Drawbar lug 50, rotating (hitch ring) *
* Optional extra
Fig. 2

Product description
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Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
2.3 Conveying unit
(1) Pick-up
(2) Spring-loaded tines
(3) Strippers
(4) CFS drum
(5) Conveying trough
(6) Conveyor duct
(7) Feeder rotor
(8) Conveying tines
(9) Stripper
(10) Cutting knife
(11) Knife protection system
(12) Upper link
Fig. 3

Product description
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
17
2.4 Brake system
2.4.1 Dual-line compressed-air brake system with mechanical automatic load-
sensitive brake (ALB) regulator
(1) Feed line with hose coupling (red)
(2) Brake line with hose coupling (yellow)
(3) Blank connection for brake line
(4) Trailer brake valve
(5) ALB regulator (mechanical)
The setting dimension (L) must not be
changed! It must correspond to the value
indicated on the ALB plate.
(6) Release valve
(7) Operating element for release valve (can
only be actuated in uncoupled condition)
(8) Diaphragm brake cylinder
(9) Compressed-air reservoir
(10) Drain valve
(11) Test connection in front of ALB regulator
(12) Test connection behind ALB regulator
(13) Test connection, diaphragm brake cylinder
(14) Test connection, compressed-air reservoir
(15) Parking brake
Fig. 4

Product description
18
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
2.4.2 Braking axle
(1) Diaphragm brake cylinder
(2) Slack adjuster for brake camshaft
(3) Brake camshaft
(4) Connecting rods for parking brake
(5) Test connection for pressure gauge
Fig. 5
2.5 Stop-cock for securing tailgate
The stop-cock for securing the tailgate is located at the right-hand
rear of the machine.
Always secure the tailgate by closing the stop-cock
● before carrying out work beneath or behind the lifted tailgate.
● as long as the machine is operated with the crossover
conveyor (optional extra) pulled out.
Stop-cock on machine without beaters
Fig. 6
Fig. 7
Stop-cock open
Tailgate can lift and lower
Stop-cock closed
Tailgate is secured against lifting and lowering.

Product description
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
19
Stop-cock on machine with beaters
Fig. 8
Fig. 9
Stop-cock open
Tailgate can lift and lower
Stop-cock closed
Tailgate is secured against lifting and lowering.
2.6 Supply lines between tractor and machine
(1) Hydraulic connector "Flow line" SN 16 (red)
(2) Hydraulic connector "Return line" SN 20
(blue)
(3) Load-sensing connector SN 6 (only with
available load-sensing connector)
(4) Compressed-air brake, feed line (red)
(5) Compressed-air brake, brake line (yellow)
(6) Lighting connector, 7-pole
(7) Power supply, 3-pole
(8) ISOBUS connector for ISOBUS control unit
(only with available ISOBUS control unit)
(9) Hydraulic connector for hydraulic brake
system with hydraulic clutch according to
ISO 5676 (only with available hydraulic
brake system)
Fig. 10

Product description
20
Zelon CFS 2501, 2901, 3301 / Zelon CFS 2501 DO, 2901 DO, 3301 DO 04.15
2.6.1 Marking of hydraulic supply lines
Hydraulic connector "Flow line"
 Label
Arrows: white
Background: red
Hydraulic connector "Return line"
 Label
Arrows: white
Background: blue
Explanation of hydraulic connector symbols
 P: Pressure pipe (red)
 T: Tank line (blue)
Load-sensing connector
 Label
Explanation of the following symbols:
 Load-sensing connector (blue)
 Hydraulic brake system (red)
2.7 Type plate
The complete marking is treated as a document and must not be
altered or made unrecognizable.