SaMASZ DUO 680 User manual

SaMASZ Sp. z o.o.
ul. Trawiasta 1
16-060 Zabłudów
Polska
tel. (+48) (85) 664 70 31
fax (+48) (85) 664 70 41
e-mail: [email protected]
www.samasz.pl
OPERATOR’S MANUAL
Serial number
The original operator’s manual
ENGLISH
IN306USA003
05.05.2020
EDITION No 3
DOUBLE-ROTOR RAKES
DUO 680
DUO 740

2
DUO
DOUBLE-ROTOR RAKE
DWUKARUZELOWA
OPERATOR’S MANUAL
CAUTION:
It is forbidden to turn on rake drive before moving the machine
into its working position.
NOTE:
The manufacturer reserves the right to introduce modifications at any time,
and without notice.
NOTE:
Any repairs of the rake’s components bent after having been hit by obstacles
or stones are done on extra charge.
WARNING:
Do not lift the rake before its working units have come to
a complete standstill.
CAUTION:
Do not operate the rake when any person remains in the danger
area of 170'.
NOTE:
Keep this manual for future reference.
Well-proven design with thousands of machines in regular use in many countries and quality materials
ensure high durability and reliability of SaMASZ rakes.
We congratulate you on the purchase of your new SaMASZ rake and wish you much pleasure and the
very best work results through the years to come.

3
OPERATOR’S MANUAL
DOUBLE-ROTOR RAKES
DUO
Contens
1. IDENTIFYING THE MACHINE......................................................................................................5
2. INTRODUCTION.........................................................................................................................5
3. DESIGNATION ...........................................................................................................................6
3.1. Technical data ...................................................................................................................7
3.2. Design and operaion...........................................................................................................8
3.3. Standard equipment and spare parts...................................................................................9
4. SAFETY ADVICE AND WARNING...............................................................................................10
4.1. General safety rules and regulations .................................................................................10
4.2. Qualifications of operator.................................................................................................12
4.3. Conditions of mounting mower on tractor .........................................................................12
4.4. Transport.........................................................................................................................12
4.4.1. Putting machines onto another vehicle for transport.......................................................13
4.5. Operating parts ................................................................................................................14
4.6. PTO shaft.........................................................................................................................14
4.7. Hydraulic assembly ..........................................................................................................14
4.8. Tires ................................................................................................................................15
4.9. Residual risk ....................................................................................................................15
5. OPERATION ............................................................................................................................19
5.1. Attaching the rake to the tractor .......................................................................................19
5.2. Preparing rake for transport..............................................................................................21
5.3. Transport width rake ........................................................................................................25
5.4. Preparing the rake for transport on public roads................................................................27
5.5. Preparing rake for transportation on a large truck..............................................................28
5.6. Mounting PTO shaft .........................................................................................................29
5.7. Moving from transport to working position........................................................................31
5.8. Preparing the rake for operation .......................................................................................31
5.8.1. Single windrow option ...............................................................................................33
5.8.2. Double windrow option..............................................................................................33
5.9. Raking width adjustment ..................................................................................................34
5.10. Operation .....................................................................................................................34
5.11. Lifting rake on turns......................................................................................................35
5.12. Removing clogging and jams.........................................................................................37
5.13. Unmounting machine from tractor.................................................................................37
6. MOUNTING AND ADJUSTMENTS .............................................................................................38
6.1. Mounting tines .................................................................................................................38
6.2. Setting rotor lifting sequence............................................................................................39
6.3. Wheel replacement...........................................................................................................40
7. MAINTENANCE .......................................................................................................................41
7.1. Daily maintenance............................................................................................................41
7.2. After-season maintenance and storing..............................................................................41
8. LUBRICATING..........................................................................................................................42
8.1. Gear.................................................................................................................................42
8.2. Joints ..............................................................................................................................43
8.3. Risks when lubricating the machine ..................................................................................44
9. DEFECTS AND THEIR REPAIRS.................................................................................................45
10. REPAIR AND WITHDRAWAL FROM USE ....................................................................................45
10.1. Repair...........................................................................................................................45
10.2. Disassembly and withdrawal from use...........................................................................45

4
DUO
DOUBLE-ROTOR RAKE
DWUKARUZELOWA
OPERATOR’S MANUAL
11. WARRANTY CARD ...................................................................................................................46
12. WARRANTY TERMS .................................................................................................................46
12.1. Warranty claim procedures............................................................................................46
12.2. Warranty repairs record.................................................................................................48
13. SCHEME..................................................................................................................................49
13.1. Hydraulic scheme .........................................................................................................49
13.2. Electric scheme DUO 680 ..............................................................................................49
13.3. Elictric scheme DUO 740...............................................................................................50
APPENDIX CALCULATING AXIS LOAD .............................................................................................51

5
OPERATOR’S MANUAL
DOUBLE-ROTOR RAKES
DUO
1. IDENTIFYING THE MACHINE
Data plate, VIN and approval plate are mounted to the rake’s main frame in the place shown in
Fig. 1.
Fig. 1. Data plate placement
Plates includes:
❑name and adress of the manufacturer,
❑machine weight,
❑CE marking means, that the produce conforms
❑machine's serial number,
to 2006/42/EC Directive and harmonized standards,
❑barcode,
❑machine symbol,
❑VIN,
❑date of manufacture,
❑approval number,
❑model year,
❑version number,
information on coupling and axle
load.
NOTE!
It is forbidden to drive the machine on public roads with damaged, illegible or
missing identification plates.
2. INTRODUCTION
❑This operator's manual should be considered the rakes’ basic equipment. If the rakes is handed
over to another operator, it should be in working condition, along with operator's manual, EC
declaration of conformity and its basic equipment.
❑Prior to operating the rakes its user must familiarize himself with this manual as well as common
work safety rules.
❑The rake is manufactured in accordance with safety standards requirements.
❑Respecting recommendations herein shall ensure operation safety.
❑If you have any questions concerning commission and operation of the rake, please contact the
manufacturer.
❑This operator’s manual is an indispensable part of any machine and is intended to familiarize
future user with principles of proper operation and use of the machine as well as the risks
involved.
WARNING:
Operating the rake without previous familiarizing with its contents as well as by
unauthorized personnel, particularly by children, is strictly forbidden.
*SU0DUX740K0050148*
SaMASZ sp. z o.o.
S1a
e32*167 / 2013*xxxxx*xx
SU0DUX740K0050148
2200 kg
A-0: 350 kg
A-1: 1100 kg
A-2: 1100 kg

6
DUO
DOUBLE-ROTOR RAKE
DWUKARUZELOWA
OPERATOR’S MANUAL
3. DESIGNATION
In-line rake DUO is designed to rake up green forage, dried forage and hay. Rake can only be used
by personnel, who learned the machine’s technical specification, dangers which go together with its
operation and ways to avoid them.
NOTE!
Use of the rake for purposes other than mentioned herein is forbidden. Different
use than the above mentioned shall be considered as improper and may lead to
revoking of the warranty. The machine should be operated, maintained and
repaired only by personnel who are learned with its detailed specifications and
safety rules and procedures. Willful modifications to the rake may lead to
revoking of the warranty.

7
OPERATOR’S MANUAL
DOUBLE-ROTOR RAKES
DUO
3.1. Technical data
Tab. 1. Technical data
Rake type:
DUO 680
DUO 740
Working width [ft. in]
17' 1"–20' 1"
18' –21' 1"
Rotor diameter [ft. in]
10' 2"
10' 6"
Transport width (max.) [ft. in]
9' 10"
8' 6"
Transport width (min.) [ft. in]
5' 11"
8' 6"
Admissible transport speed
15 mph
Height in operating position [ft. in]
4' 9"
Transport height with folded work
assemblies and removed outermost arms
8' 6" –8'
Transport length [ft. in]
28' 7"
29' 6"
Tractor's PTO rpm
540 rpm
Recommended drive's rotating speed
350-450 rpm
Power demand
37kW/50 HP
59kW/80 HP
Operating efficiency
~ 5 - 6,5 ha/h
~ 8,0 ha/h
Rotor quantity
2 pcs
2 pcs
Rotor arm quantity
2 x 11 pcs
2 x 11 pcs
Axis on rotors
Tandem axis
Tires
Speed / load index 1
18x8,5-8
130/425
Tire pressure
2,0 bar
Weight
1,720 kg / 3,792 lbs
2,060 kg / 4,541 lbs
Coupling load
max 350 kg
Axle load
max 1100 kg
Noise level LpA2
63,8 ± 3,2 dB
LAmax3
64,5 ± 3,2 dB
LCpeak 4
91,5 ± 3,2 dB
1
Use of tyres delivered by other manufacturers is allowable on condition the size, load-capacity index and speed category are matched.
2LpA –noise level related to 8 hour working time. Averaged in time acoustic pressure level corrected by frequency characteristic A.
3LAmax –maximum value corrected by frequency characteristic A of acoustic pressure level.
4LCpeak –peak level of acoustic pressure corrected by frequency characteristic C.

8
DUO
DOUBLE-ROTOR RAKE
DWUKARUZELOWA
OPERATOR’S MANUAL
3.2. Design and operaion
Fig. 2. Overview of DUO 680 double-rotor rake
Tiller (1) enables mounting the rakes on 3-point linkage beam, which is part of each tractor's
equipment. Drive from tractor rpm is transmitted through intersecting axis gear (2) onto rotary gear
with shaft located on rake's front linkage (16). Rear rotor gear (21) is driven by gear (2), roller located
inside the linkage (5) and roller with homo-kinetic joint (18). Both rotors are equipped with numerous
raking arms (8, 3). Safety guards (13) reduce the risk of unwanted objects to get into area of rotating
rotor arms. The rake is equipped with adjustable swath guard both on front and rear raking assembly
(20, 15). Both assemblies are guided onto carts (14, 19). During transport, the outer raking arms are
removed and placed in holders. Raking tines are put in covers.
1 –Tiller
2 –Intersecting axis gear
3 –Safety guard
4 –Front rotor gear
5 –Joint linkage
6 –Turning cylinder
7 –Ground following lock cylinder
8 –Rear raking arm
9 –Tine
10 –Warning plate with lighting
11 –Tiller's support leg
12 –Front support wheel
13 –Front safety guard
14 –Front cart
15 –Front swath guard
16 –Front linkage
17 –Rear support wheel
18 –Wide-angle shaft
19 –Rear cart
20 –Rear swath guard
21 –Rear rotor gear
6
7
8
20
19
17
15
12
11
13
1
5
10
4
21
14
2
9
3
18
16

9
OPERATOR’S MANUAL
DOUBLE-ROTOR RAKES
DUO
3.3. Standard equipment and spare parts
Rakes are sold with the following standard equipment:
❑warranty card,
❑operator's manual with spare part list and declaration of conformity,
❑PTO shaft,
❑warning plates with LED lights,
❑wheel wedges,
❑spray paint (150 ml).
Optional equipment:
❑twin wheels - set,
❑Additional front suport wheel.
Tab. 2. Recommended PTO shaft
Rake
Power
Length
Momentum
Symbol
Clutch
Manufacturer
Remarks
HP
mm
Nm
DUO 680
DUO 740
64
1300-1851
830
8G7R130CEWR7001
unilateral
Bondioli
& Pavesi
Fig. 3. Shaft lubrication
NOTE:
PTO shaft lubrication frequency must be respected. Points shown on Fig. 3 shall
be lubricated every 50 hours. PTO shaft should also be lubricated prior to and
after longer idle period.
PTO shafts of other brands with equivalent technical parameters may be used on the SaMASZ
permission.

10
DUO
DOUBLE-ROTOR RAKE
DWUKARUZELOWA
OPERATOR’S MANUAL
4. SAFETY ADVICE AND WARNING
The following precautions are for your safety. They must be read carefully and
followed by every person who operates or maintains the machine. Failure to follow these safety
precautions could result in serious injury or death to the operator, maintenance person or
bystanders and property damage to the machine and surrounding property.
Safety Signal Words
This manual and the safety labels attached to this equipment utilize signal words that signify safety
hazards with different levels of severity. Below are the words used and the definitions for these
words:
•DANGER indicates a hazardous situation which, if not avoided, will result in death or
serious injury
•WARNING indicates a hazardous situation which, if not avoided, could result in death or
serious injury
•CAUTION indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury
•NOTICE is used to address practices not related to physical injury
4.1. General safety rules and regulations
The following descriptions are for your safety: They must therefore be read
carefully and applied every time you use the machine.
❑The machine has been designed for use by one single operator.
❑When using, servicing, repairing, moving or storing the machine, the operator must wear safety
footwear, safety gloves plus ear protection and dusk mask if necessary.
❑During use, the machine may give rise to dust, especially if the soil is dry. You are advised to use a
tractor with a cab fitted with filters in the ventilation system. Failing this, wear a dust mask with
filter to protect your respiratory tract
❑Front axis of the tractor should be weighted to keep the balance. If need be, use front wheel weights.
❑In order to keep steering conditions, impact on front axis should be at least 20% of the complete
tractor.
❑Be extremely careful whenever using hydraulic lift lever or buttons. Any operation with hydraulic lift
lever should be done from operator’s seat; DO NOT move the lever from outside of a tractor.
❑In case of tractors equipped with EHR, operating with hydraulic lift is done by the buttons mounted
outside the tractor’s cabin. When operating be extremely careful.
❑When switching from working to transport position, remove the entire PTO shaft or at least one end
of the shaft from the tractor’s PTO so it cannot turn.
❑When attaching the rake to a tractor, the operator should wear protective gloves.
❑DO NOT operate the rake unless all safety guards are in place and operational. In addition, any
damaged protective aprons should be replaced with a new ones.
❑No person (except operator) should stand within danger area which is a minimum of 170' from any
operating part, especially when operating near roads and in areas with stones and other debris. Be
certain that children and animals are at a safe distance away from the machine.

11
OPERATOR’S MANUAL
DOUBLE-ROTOR RAKES
DUO
IMPORTANT: Maintenance and adjustment should ONLY be done after the following has occurred:
❑tractor’s engine has been stopped and ignition key has been taken out,
❑all rotating parts have come to complete standstill (NOTE: raking tines will rotate for
several minutes after engine is turned off),
❑When in standstill the machine should be protected against unauthorised use with a padlock
mounted on hitch pin (Fig. 37).
❑Never tamper with or remove safety devices on the machine or make them inoperable.
❑Before starting work and periodically thereafter, replace any damaged, missing and/or worn tines
and holders.
❑When driving on public roads always comply with local traffic regulations, especially those
concerning warning lights.
❑When the rake is lifted for repair on 3-point linkage, it should be secured against falling by
mechanical support or by chain.
❑The bolts and other fasteners have to be periodically checked and, if necessary, tightened or
replaced. DO NOT work with damaged or worn fasteners.
❑Never lift the rake on tractor linkage when the drive is operating and the rotors are in motion.
❑When operating the rake, the tractor should always be equipped with operator protection that is
required by laws and regulations.
❑Rotating spring tines and other rotary elements pose danger to health and life of persons remaining
within the machine working range. Do not touch any moving machine parts.
❑Never start the rake when the rotors are off the ground.
❑Before you start the tractor make sure that all drives are turned off and the levers that turn the
hydraulics are in neutral position.
❑Never leave tractor’s engine running without supervision. Before you leave the tractor, turn off the
engine and remove the key from tractor’s ignition.
❑DO NOT operate the rake when driving the tractor backwards.
❑Permissible inclination of the rake on a slope when working and during transport is 8°. Exceeding
this incline can result in rake tipover.
❑Never stand between tractor and rake unless tractor and rake are secured against moving by the
tractor’s brake.
❑If any maintenance must be done under an elevated rake, it must be blocked or otherwise secured
against falling.
❑When the parts of the rake need replacement, use only original spare parts as described in the spare
parts list. Pay particular attention to PTO shaft’s guards and rake’s and tractor’s spline shaft guards.
❑Hydraulic hoses are potentially very dangerous. Do the following to minimize any hazards:
❑Hydraulic hoses should be periodically checked and if any damage to the hoses have
occurred or if they have been used more than 5 years, replace with new ones.
❑Never use scotch tape to repair hydraulic hoses.
❑When connecting hydraulic hoses to tractor’s hydraulic connectors, make sure that the
tractor’s or rake’s hydraulic system is not under pressure.
❑The rake should be stored under a roof and in a way as to not be hazardous both to people or
animals.
❑In the event of an accident involving this rake in a field or on a road, follow all applicable first aid
procedures and contact SaMASZ technical service.
❑Rake should be kept clean, so as to avoid danger of fire.
❑The operator is not allowed to leave the tractor while driving.
❑It is prohibited to lift the raking arms when the drive is on and the rotor is rotating.

12
DUO
DOUBLE-ROTOR RAKE
DWUKARUZELOWA
OPERATOR’S MANUAL
❑When used in storm, the machine is exposed to lightning.
❑When taking turns pay particular attention and consider weight and dimensions of the machine.
4.2. Qualifications of operator
To provide safe machine operation each person being the machine operator must meet the
following requirements:
❑Operator should hold driving license, have ability to drive vehicles safely and know road traffic rules.
❑Operator must be in proper physical condition to be able to operate the machine.
❑Operator must not be under the influence of alcohol, drugs and medicines, which all have influence
on vehicle driving and machine operation.
❑Operator should be familiarized with this manual and follow its provisions.
❑Operator should be familiar with working principles of both the tractor and the machine, and be able
to recognize and avoid hazards resulting from operation of the aggregate.
4.3. Conditions of mounting mower on tractor
❑Prior to the mounting operation, check whether the tractor's and the mower's hitch categories are
compatible and make sure that tractor's hitch load is adequate for the machine aggregated.
❑Prior to mounting the machine, examine technical condition of the mower's hitch assembly and
tractor's 3-point linkage.
❑Use only genuine pins and cotters to mount the mower on a tractor.
❑Once the machine is mounted on tractor check stability and manoeuvrability of the latter. Load on
the front axle should be approx. 20% of the weight of tractor. Otherwise, ballast front of the tractor.
4.4. Transport
The lifting, handling and transporting operations can be very dangerous unless they are carried
out with the utmost caution. Have all persons not involved in the actual work move away from the area
and limit the zone where the operations are to be carried out. Also make sure that the area in which the
operations take place is clear and that there is a sufficient escape route, i.e. a free, safe zone to which
the operators can quickly move if the load should fall.
The safety hooks and ropes used to lift the machine must be of an adequate carrying capacity
To minimize the risk of serious injury or death, do the following:
❑When the machine is converted from the transport position to the working position and vice versa,
you could be pinched or crushed by some of its parts. Take extra care when carrying out these
maneuvers and have all persons keep well clear of the danger zone.
❑Do not change position of the rake until there are no people or animals around (pay particular
attention to children).
❑While transporting the rake, put a warning plate with combined lights and reflectors and warning
triangle on the rake.
❑During transport, always put the rake in its proper and safe transport position. See section 5.3.
❑Before putting the rake in transport position, make sure that the tractor’s PTO is turned off and all
rotating parts have come to a complete stop.
❑Do not drive over 25 km/h (15 mph). Drive slower if road conditions are poor, especially on irregular
surfaces or steep slopes.
❑The behavior of the tractor on the road, such as its turning and braking capacities, are affected by
the implements mounted.

13
OPERATOR’S MANUAL
DOUBLE-ROTOR RAKES
DUO
❑When driving on the road after work, check to make sure that the tires and soil working tools are
clean to prevent the road surface from becoming dirty.
❑Make sure that the machine is not damaged during transport.
4.4.1. Putting machines onto another vehicle for transport
The driver and the carrier are responsible for the rake’s transport safety. Equipment and parts
must be secured during transport. To put the rake onto another vehicle in a safe way, please obey the
following rules.
❑Transport should be done by qualified and specifically trained personnel,
❑Grab the rake by any lifting devices only in places indicated by hook sign,
❑For rake lifting, use only lifting devices with hoisting capacity larger than rake’s weight shown in
data plate. This also applies to ropes and chains used for lifting,
❑Do not lift if transport belts, belt suspensions, ropes are damaged. Whenever damage to these parts
occurs, replace with new ones,
❑When mounting slings, chains, handles etc., always set the machine's center of gravity properly,
❑To safely support the machine, use ropes of adequate length so that the angle between them is no
greater than 120°, and the angle between the strand and the vertical is no greater than 60°,
❑Lift the machine with the utmost caution and move it slowly,
❑No one should be within the range of action of the lifting equipment when any transporting
operations are being carried out,
❑Collapsible parts should be blocked in transport position,
❑When the rake is on the vehicle’s trailer, the machine should be secured against moving.
Fig. 4. Moving machine for transport
Fig. 5. Location of centre of gravity
X
Y

14
DUO
DOUBLE-ROTOR RAKE
DWUKARUZELOWA
OPERATOR’S MANUAL
Tab. 3. Location of centre of gravity
Dimension [mm]
Machine type
DUO 680
DUO 740
X
14' 9"
17' 1"
Y
2' 5"
2' 2"
4.5. Operating parts
❑Prior to operating the rakes check the rotor and the tine condition.
❑Worn or damaged tines should be replaced immediately with new ones.
NOTE:
When replacing working parts wear protective gloves.
4.6. PTO shaft
❑Prior to operating learn instructions given by the shaft's manufacturer found on the shaft.
❑Use only the rake's manufacturer recommended PTO shafts.
❑In order to operate safely use only fit, undamaged telescopic articulated shafts. Damaged
telescopic articulated shaft shall be repaired or replaced with new one.
❑Pay particular attention to PTO shaft’s guards and rake’s and tractor’s spline shaft guards. Never
work with damaged guards.
❑Before operation, check all guards (in tractor, machine and the shaft), if they are in place and are
functional. Any worn or damaged guard must be replaced. Damaged or missing guard of drive shaft
may cause serious accident and even death.
❑Possible inclination of the shaft depends on shape and size of the guard. Before operation check if
guards in any position are not damaged or locked.
❑Always pay attention to the recommended overlap of the PTO shafts in working and transport
positions.
❑Before you start work, you must make sure that the PTO shaft is spinning in the right direction and
that the tractor PTO RPM matches the permissible RPM levels of the machine.
❑When using the power PTO shaft there must be nobody in the danger zone of the rotating telescopic
joint shaft or PTO shaft.
4.7. Hydraulic assembly
❑Caution! Hydraulic assembly is under pressure! Hydraulic oil under pressure may penetrate skin and
cause serious injury. Skin and eyes should be protected in particular. In case of injuries caused by
a liquid under pressure, call a doctor immediately.
❑Hydraulic hoses can be connected to the tractor's hydraulics provided that both the tractor’s and
the rake's hydraulic assemblies are not under pressure. To remove the pressure from the hoses,
start the tractor's hydraulic valves several times with the tractor off.
❑When unmounting the machine from the tractor, set the equipment used aside, deflate the pressure
from hydraulics and turn the tractor's engine off.
❑When inspecting the hydraulic assembly for malfunctions and oil leaks, do not touch any potential
leaks as the assembly is under pressure.
❑Note! Use only hydraulic oil featuring oil purity class 9 - 10 in accordance with NAS 1638.
When using hydraulic hoses:
❑Avoid stretching the hoses when operating.
❑Do not allow hydraulic hoses to get deflected.

15
OPERATOR’S MANUAL
DOUBLE-ROTOR RAKES
DUO
❑Do not expose hydraulic hoses to contact with any sharp edges.
❑If damaged or worn, replace the hoses with new ones.
❑Useful life for hydraulic hoses is 5 years from their production date.
4.8. Tires
❑The air pressure in the wheels must be regularly checked and maintained at the appropriate level
recommended by the manufacturer.
❑Repair work on the machine’s tyres and wheels may only be carried out by qualified personnel with
the appropriate tools for this type of work.
❑When carrying out maintenance and repair work on tyres and wheels, ensure that the machine is
properly parked and secured against rolling away (use wedges).
❑Disassembly and assembly of the wheels requires appropriate skills and equipment.
4.9. Residual risk
Despite the fact that SaMASZ, the manufacturer of the rake, has taken great care in the design
and manufacturing of the rake, certain risks during rake operation and maintenance are unavoidable. A
major source of risk that could result in serious injury or death can occur during the performance of
these operations.
Major source of risk follows performance of these operations:
❑operation of rake by minors,
❑operation by individuals who have not read the operator's manual and safety labels,
❑operation of rake by persons under influence of alcohol or other substances,
❑not being cautious during transportation and moving rake during operation,
❑transport of persons who are on the machine,
❑presence of persons and animals within the rake operation range,
❑performing servicing and machine adjustments with the engine on.
4.9.1. Danger of machine entanglement
This risk occurs when (1) changing position of a rake, (2) operating near rotating parts, and (3)
working without safety guards. During operation, maintenance and adjustment, always wear protective
gloves, shoes and clothes without loose parts, belts and so on. Always comply with safety labels placed
on the rake.
4.9.2. Danger of wound, abrasion and damage of skin
Present when replacing working parts with sharp edges, cleaning the machine and removal of any
clogging and jams. For any repair and maintenance works always wear safety gloves.
4.9.3. Forbidden actions
During rake’s operation, do not do the following:
❑never unblock the rake, make any regulations or repairs of the rake while it is in motion,
❑never change order of operation and maintenance activities described in operator’s manual,
❑never operate the rake when it is not in working order or has damaged safety guards,
❑never get your hands and legs close to rotating parts of the rake,
❑during repair and maintenance of the rake, always comply with descriptions included in operator’s
manual. Always do these activities when the tractor’s drive is off,
❑never operate the rake under influence of alcohol, drugs, or strong medicine that impair your
attention,

16
DUO
DOUBLE-ROTOR RAKE
DWUKARUZELOWA
OPERATOR’S MANUAL
❑do not wear clothes or jewelry that are too loose or too tight. Too loose clothing or jewelry may be
pulled in by the rotating parts of the rake,
❑the rake should not be operated by children or by handicapped people,
When describing residual risk, the rake complies with the state of the art in technology on the date it
was manufactured.
4.9.4. Residual risk assessment
Residual risk occurs from not complying with the instructions and safety precautions. Such risk
can be minimized by doing the following:
❑thorough familiarizing yourself with operator’s manual,
❑allow no persons on the machine when operating,
❑allow no persons within the rake operation range,
❑adjust, maintain and lubricate the machine with the engine off,
❑only skilled persons should perform repairs of the machine,
children and strangers must keep away when the machine is operating,
When the risk of being exposed to noise cannot be avoided or eliminated by any
group protective means or organization of work, employer (operator) must:
1) provide the operator with individual means of noise protection, if the noise
level in work place exceeds 80 dB.
2) provide the operator with individual means of noise protection and supervise
its proper use, if the noise level in work place reaches or exceeds 85 dB.
N-01
Be extremely careful
when PTO shaft is
rotating!
N-03
Caution –read the
operator’s manual before
putting the rake into
operation!
N-04
Caution –while making
repairs the machine must
be stopped!
N-06
Caution –rotating parts
N-07
Operating is forbidden
when any person is within
the danger
area of 50 m / 170 ft
N-11
Lubrication point
N-40
Transport hook for lifting
of the rake
N-49
Do not get too close to
the hoist of the tractor
during operation of the
hoist

17
OPERATOR’S MANUAL
DOUBLE-ROTOR RAKES
DUO
N-50
Do not get under the rake
N-55
N-117
Avoid fluid escaping
under pressure
N-167
Do not remain on the
machine while driving
N-168
Do not touch the machine
before the rotating parts
have not come to a
complete standstill
N-183
Caution! Danger of leg
entanglement
N-52
Use protective gloves
N-100
Use protective glasses
N-101
Use protective clothing
N-102
Use head protection
N-103
Use hearing protection
N-104
Use protective shoes
N-41
Point of support of rake
N-42
Safety padlock
N-15
Danger operating when
any person remains in the
danger area of 50m/170
ft
N-162
It is forbidden to drive on
public roads it the
transport width exceeds
3m or the transport height
exceeds 4 m
N-156
Valve identifier V1
N-157
Valve identifier V2

18
DUO
DOUBLE-ROTOR RAKE
DWUKARUZELOWA
OPERATOR’S MANUAL
N-136
Raking height
adjustment
N-124
N-197
N-144
Description of hydraulic hoses
N-145
Regulation of the speed of hydraulic
cylinders lifting front frame
N-146
Regulation of the speed of hydraulic
cylinders lifting rear frame

19
OPERATOR’S MANUAL
DOUBLE-ROTOR RAKES
DUO
N-01; N-49
N-03; N-04; N-06; N-07;
N-117; N-167; N-168; N-183
N-15; N-52
N-162
N-136
N-156; N-157
N-144; N-145
N-146
N-41; N-42
N-50; N-100
N-101; N-102
N-103; N-104
Fig. 6. Warning decals placed on the machine
5. OPERATION
WARNING:
Before beginning to use this machine, do the following:
❑Read manual, especially safety precautions in section 4.
❑Make sure you are familiar with all controls and functions.
❑Make sure all safety devices are in place and working. Fix or replace if not
working or damaged.
❑Replace protective cover if damaged.
5.1. Attaching the rake to the tractor
NOTE:
When attaching the rake, there should be no persons between the machine and
the tractor. Any accidental manoeuvring with the aggregate might cause
crushing of unauthorized personnel.
NOTE:
The machine should be mounted on a level ground.
Rakes DUO 640 and 740 are suitable for mounting on a tractor by means of tiller (1). Connect the
rake to tractor' links with pins (3) and protect with cotters (4) (Fig. 7).

20
DUO
DOUBLE-ROTOR RAKE
DWUKARUZELOWA
OPERATOR’S MANUAL
Fig. 7. Mounting rake
As the rake is mounted on the tractor, examine the longitudinal balance and steerability of the
tractor-rake aggregate. To do this, calculate to formulas given in the appendix or weigh the set, and
then drive on the scales only with front axis of the tractor. If the pressure on the front axis is at least
20% of the whole set’s pressure, it means the set is stable. Otherwise, front axis should be balanced.
Due to the fact that rake DUO 740 is equipped with hydraulic rear swath curtain folding assembly it is
necessary to additionally connect machine's controller (1) (see Fig. 8) to tractor's lighter outlet (12V)
by means of plug (1) and a three-pin plug (3) to socket (4) on the rake's linkage. Fix the controller in
tractor's cabin by means of magnetic holder in a visible place. Controller ARDUO allows for switching
control from double-sided operation of the machine's rear star to cylinder for lifting and lowering the
rear swath curtain. Selected option is signalled with lighting up of the corresponding diode (6) found
under the option. To switch work mode push button (5) on controller until the corresponding diode (6)
is lit.
3
1
4