SaMASZ KDT 180, KDT 220 W, KDT 220, KDT 220 S, KDT 260 Operator's Manual

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SaMASZ Sp. z o.o.

Established

– 1984

Poland, 16-060 Zabłudów, ul. Trawiasta 1

NIP PL-966-159-29-76 tel. (+48) (85) 664 70 31 fax (+48) (85) 664 70 41

e-mail: samasz@samasz.pl

www.samasz.pl

OPERATOR’S MANUAL

REAR DISC MOWER

KDT 180 - 5' 11" KDT 220 - 7' 3" KDT 220 W - 7' 3" KDT 220 S - 7' 3" KDT 260 - 8' 6" KDT 260 W - 8' 6" KDT 260 S - 8' 6" KDT 260 SL - 9' 10" KDT 340 - 11' 2" KDT 341 - 11' 2"

Serial No:

The original instruction

IN221USA010

17.03.2017

EDITION № 10

Optimum inclination towards the ground is 0 ÷ 5°

to the mowing direction

It is allowed to work in horizontal position.

Different inclination may damage the mower.

DO NOT

TURN THE DRIVE ON

IF THE MOWER IS NOT IN

WORKING POSITION

DO NOT

LIFT THE MOWER BEFORE THE MOWING DISCS HAVE COME TO

COMPLETE STANDSTILL

DO NOT

OPERATE WHEN ANY

PERSON REMAINS IN THE

DANGER AREA OF 170′.

Well-proven design with thousands of machines in regular use in many countries and quality

CAUTION:

Keep this manual for future use.

materials ensure high durability and reliability of SaMASZ mowers.

- 1 -

Operator’s manual

1. IDENTIFYING THE MACHINE ........................................................................................................................... 2

2. INTRODUCTION .................................................................................................................................................... 2

3. PROPER AND INTENDED USE ........................................................................................................................... 3

3.1. Technical data ....................................................................................................................................................... 4

3.2. Design and working principle ............................................................................................................................... 5

3.3. Standard equipment and spare parts ..................................................................................................................... 6

4. SAFETY PRECATIONS ......................................................................................................................................... 8

4.1. General safety rules and regulations ..................................................................................................................... 8

4.2. Conditions of mounting mower on tractor .......................................................................................................... 10

4.3. Transport ............................................................................................................................................................. 10

4.3.1. Putting the mower onto another vehicle for transport ................................................................................... 11

4.4. Working parts ..................................................................................................................................................... 12

4.5. PTO shaft ............................................................................................................................................................ 12

4.6. Hydraulic assembly ............................................................................................................................................ 12

4.7. Residual risk ....................................................................................................................................................... 13

4.7.1. Danger of machine entanglement .................................................................................................................. 13

4.7.2. Danger of cutting injury ................................................................................................................................ 13

4.7.3. Danger of injury from liquid ejection out of hydraulic system ..................................................................... 13

4.7.4. Forbidden actions .......................................................................................................................................... 13

4.7.5. Residual risk assessment ............................................................................................................................... 14

4.8. Safety labels and their meaning .......................................................................................................................... 14

5. OPERATION .......................................................................................................................................................... 17

5.1. Attaching the mower to the tractor ..................................................................................................................... 17

5.2. Preparing the mower for transport ...................................................................................................................... 18

5.3. Preparing the mower for transport on public roads ............................................................................................. 19

5.4. Mounting PTO shaft ........................................................................................................................................... 19

5.5. Moving from transport to working position ........................................................................................................ 20

5.5.1. Operating positions of the mower ................................................................................................................. 21

5.6. Preparing the mower for work ............................................................................................................................ 22

5.7. Operation (mowing) ............................................................................................................................................ 22

5.7.1. Essential information concerning mowing .................................................................................................... 23

5.7.2. Design and and operation of safety breakaway device .................................................................................. 24

5.7.3. Mower clogging ............................................................................................................................................ 25

5.7.4. Taking turns over swaths ............................................................................................................................... 25

5.8. Storing ................................................................................................................................................................ 25

5.9. Dismounting mower from tractor ....................................................................................................................... 25

6. MOUNTING AND ADJUSTMENTS ................................................................................................................... 26

6.1. Mounting and timing of the knives ..................................................................................................................... 26

6.2. Replacing the knives ........................................................................................................................................... 26

6.3. Adjusting the cutterbar........................................................................................................................................ 27

6.4. Adjusting the cutting height ................................................................................................................................ 29

6.5. 3-point linkage support chain ............................................................................................................................. 30

6.6. Adjusting the space between tine conditioner’s mask and its shaft .................................................................... 30

6.7. Replacing the conditioner’s tines ........................................................................................................................ 31

6.8. Adjusting force of the prssure of roller conditioner ............................................................................................ 32

6.9. Maintenance and service ..................................................................................................................................... 32

6.9.1. Checking the knives and knife holders .......................................................................................................... 32

6.9.2. Checking the tension of the V-belts .............................................................................................................. 33

6.9.3. Inspection of tension of toothed belt for gears of rollers and conditioner ..................................................... 33

6.9.4. Daily maintenance ......................................................................................................................................... 34

6.9.5. After-season maintenance and storing of machine ........................................................................................ 34

7. LUBRICATION ..................................................................................................................................................... 35

7.1. Cutterbar ............................................................................................................................................................. 35

7.2. Intersecting axis gear .......................................................................................................................................... 36

7.3. Roller conditioner’s gearbox .............................................................................................................................. 36

7.4. Bearings and joints ............................................................................................................................................. 37

8. MALFUNCTION AND THEIR REPAIRS .......................................................................................................... 38

9. DISASSEMBLY AND WITHDRAWAL FROM USE ........................................................................................ 39

9.1. Scrapping ............................................................................................................................................................ 39

10. WARRANTY CARD .............................................................................................................................................. 39

11. WARRANTY TERMS ........................................................................................................................................... 39

11.1. Warranty claims procedures ............................................................................................................................... 39

11.2. Warranty repairs record ...................................................................................................................................... 40

APPENDIX CALCULATING AXIS LOAD ................................................................................................................ 41

Rear disc mowers

KDT

- 2 -

Data plate location

Data plate

Data p

late includes:

- name and adress of the manufacturer,

model year,

- CE marking means, that the produce

version number,

conforms to 2006/42/EC Directive and

machine weight,

harmonized standards,

id number,

- machine symbol,

barcode.

- date

of manufacture,

Operator’s manual

1. IDENTIFYING THE MACHINE

Rear disc mowers

KDT

Data plate is mounted to the mower’s main frame in the place shown below (Fig. 1).

Fig. 1.

Fig. 2.

NOTE:

For more detailed information concerning the mower ask your dealer or manufacturer.

2. INTRODUCTION



This operator’s manual is essential for safe and proper use of this mower and should be read before anyone operates this mower. It should be kept near the mower for future use. If the mower is used by other operator, it should be in working condition and include this operator’s manual and all other basic equipment.



Operator’s manual is delivered with every machine so that the operator can familiarize himself with the design, working principle, servicing and adjustment of the mower. The operator should be familiar with common safety rules and procedures.



The mower is manufactured according to international safety rules.



Compliance with the safety precautions in this operator’s manual will enable safe operation.



Please contact your dealer if you have any queries relating to the operation and service of the mower.



Operator’s manual remains part of mower’s equipment.

- 3 -

No tilt

3° tilt

5° tilt

Operator’s manual

3. PROPER AND INTENDED USE

Rear disc mowers

KDT

Mower KDT is equipped with the Perfect Cut cutterbar. The mowing height differences, depending on the inclination angle of the cutterbar are shown below Tab. 1.

Tab. 1. Mowing height depending on cutterbar's inclination angle

„Perfect Cut” cutting bar

Standard mowing height

Optional heights when using high mowing topping

Optional heights when using high mowing double topping

• The front mounted disc mower is intended for mowing green fodder such as grass and alfalfa

on permanent grassland (pastures), on crop fields without rocks, and forming loose rows of cut fodder. The pasture or field being mown should be even and best if prepared by rolling. In the event there is a majority of tall grass, the first and second mowing should be done at a height of 2.4" - 2.8", while with a majority of short grass, at a height of 2". The last mowing should be done a little higher - at 2.8" - 3.1" from the ground.

• The front mounted disc mower with tine/roller conditioner is intended for mowing green fodder

such as grass and alfalfa on permanent grassland (pastures), on crop fields without rocks, and forming loose rows of cut forage. As a result of the passing of the layers of the green fodder through the flails or rollers, the grass stems are broken and a layer of wax is removed. This facilitates and speeds up the drying process of the fodder by approximately 30 to 40%. The use of rollers is especially recommended when mowing legumes such as alfalfa Rollers are particularly recommended for mowing grass legume such as alfalfa. The pasture or field being mown should be even, best if prepared by rolling. This is especially true of mowers with rollers as they tolerate rocks with a diameter of a few inches. If a larger stone is picked up stop and remove it as it could cause damage of the discs. With a majority of tall grasses the first and second mowing should be done at a height of 2.4" - 2.8", while with a majority of short grass it should be cut at a height of 2". The last cut should be done a little higher - at 2.8" - 3.1"from the ground.

Note: Grass, which has not grown much should be mowed with zero angle inclination

- 4 -

Model:

Working width

5' 11"

7' 3"

8' 6"

9' 10"

11' 2"

Number of knives [pcs.]

8 (2 x 4)

10 (2 x 5)

12 (2 x 6)

14 (2 x 7)

16 (2 x 8)

Tractor PTO rpm

540 rpm

(30 HP)

(50 HP)

(70 HP)

(80 HP)

(90 HP)

0 HP)

3-point linkage category

Working capacity

~ 2.0 ha/h

~ 2.5 ha/h

~ 3.0 ha/h

~ 3.5 ha/h

~ 4.0 ha/h

Transport length

3' 11"

Transport width

6' 1"

7' 1"

7' 3" 7' 3"

Working width

11' 6"

13' 9"

15' 1"

16' 9"

18' 1" 18' 1"

eight

1213

lbs.

1477 lbs.

1599

lbs.

1730

lbs.

1818

lbs.

1818

lbs.

Cutting speed of the knife

91 m/s

Disc rpm

3250 rpm

Noise level

LpA

101 ± 1 dB

Amax

113 ± 1 dB

Cpeak

116 ± 1 dB

Model:

Working width

7' 3"

8' 6"

7' 3"

8' 6"

Number of knives [pcs.]

10 (2 x 5)

12 (2 x 6)

10 (2 x 5)

12 (2 x 6)

Tractor PTO rpm

540 rpm

(60 HP)

(90 HP)

(60 HP)

(90 HP)

3-point linkage category

Working capacity

~ 2,0 ha/h

~ 2,8 ha/h

~ 2,0 ha/h

~ 2,8 ha/h

Transport length

5' 3"

4' 4' 4' 11"

4' 9"

Transport width

7' 7' 7' 7' 7' 3"

Working width

13' 9"

15' 4"

13' 9" 15' 5"

Weight

2073

lbs.

2194

lbs.

2194

lbs.

2095

lbs.

2215

lbs.

Cutting speed of the knives

91 m/s

Disc rpm

3250 rpm

Amax

109 ±

1 dB

109 ±

1 dB

Cpeak

112 ±

1 dB

112 ±

1 dB

Operator’s manual

WARNING

Use of the mower for purposes other than described above is forbidden. Improper use can be dangerous and may lead to voiding the warranty. Mower should be operated and repaired only by persons familiar with its detailed specifications and with all applicable safety rules and regulations as well as the relative dangers. Unauthorized modifications to the mower will lead to voiding the warranty.

3.1. Technical data

Tab. 2. Specification of the mower KDT

KDT 180 KDT220 KDT260 KDT300 KDT340 KDT 341

Rear disc mowers

KDT

Tractor power required

22 kW

30 kW

50 kW

60 kW

70 kW

KDT 220 S KDT 260 S KDT 260 SL KDT 220 W KDT 260 W

44 kW

66 kW

44 kW

66 kW

Noise level L

S – Mowers with tine conditioner W – Mower with roller conditioner LpA – noise level related to 8 hour working time. Averaged in time acoustic pressure level corrected by

frequency characteristic A.

– maximum value corrected by frequency characteristic A of acoustic pressure level.

Amax

– peak level of acoustic pressure corrected by frequency characteristic C.

Cpeak

98 ± 1 dB 97 ± 1 dB

- 5 -

2 3

5 6

8 9 10

4 –

Cutterbar

11 –

Support legs

Operator’s manual

Rear disc mowers

KDT

3.2. Design and working principle

3-point linkage frame (1) enables attachment of the mower to tractor’s 3-point linkage. Drive

from tractor’s rpm is transmitted through drive unit (3) on the cutterbar (4). Hydraulic cylinder (2) is used to adjust the mower to working position. It is supplied from outer hydraulics of the tractor. Main frame, on which the cutterbar (4) is situated, is supported by the springs (7). Swath discs (5) are mounted on the main frame.

1 – 3-point linkage frame 2 – Hydraulic cylinder with 3 – Drive unit

Fig. 3a. Parts of SaMASZ rear disc mower

5 – Swath discs 6 – Safety curtain 7 – Support springs

3-point linkage frame (1) enables attachment of the mower to tractor’s 3-point linkage. Drive

from tractor’s rpm is transmitted through

intersecting axis gear

(3) on the cutterbar (4). On the

cutterbar, there are discs with two knives each. Apart from that, drive from tractor’s rpm through

chain gear

(9) and PTO shaft (10) is transmitted to tine conditioner (8). Hydraulic cylinder (2) is

used to adjust the mower to working position. It is supplied from outer hydraulics of the tractor. Main frame, on which the cutterbar (4) is situated, is supported by the springs (7). Swath guides (5) are mounted on the main frame.

1 – 3-point linkage frame 2 – Hydraulic cylinder with 3 – Intersecting axis gear 4 – Cutterbar 5 – Swath discs

Fig. 3b. Parts of SaMASZ rear disc mower with tine conditioner

6 – Safety curtain 7 – Support springs 8 – Tine conditioner 9 – Chain gear 10 – PTO shaft

- 6 -

2 3 4 5 6 7 8 9 10

11 –

Support legs

KM ft. in Nm

KDT 180

21 3'-3

' 12'' 270 7G2N086CE007096MA

KDT 260 S/SL/W

Operator’s manual

Rear disc mowers

KDT

3-point linkage frame (1) enables attachment of the mower to tractor’s 3-point linkage. Drive

from tractor’s rpm is transmitted through

intersecting axis gear

(3) on the cutterbar (4). On the

cutterbar, there are disco with two knives each. Apart from that, drive from tractor’s rpm through

Intersecting axis gear

(3) and PTO shaft (10) is transmitted to roller conditioner (8). Hydraulic cylinder (2) is used to adjust the mower to working position. It is supplied from outer hydraulics of the tractor. Main frame, on which the cutterbar is situated, is supported by the springs (7). Swath guides (5) are mounted on the main frame.

Fig. 3c. Parts of SaMASZ rear disc mower with tine conditioner

1 – 3-point linakge frame 2 – Hydraulic cylinder with support springs 3 – Intersecting axis gear 4 – Cutterbar 5 – Swath guides

6 – Safety guard 7 – Springs 8 – Roller conditioner 9 – Chain gear 10 – PTO shaft

3.3. Standard equipment and spare parts

The mowers are sold with the following standard equipment:



warranty card,



operator’s manual with spare parts list,



cutting knives: additional set,



PTO shaft with overrunning clutch,



spray paint (150 ml).

Optional extra equipment:



warning plate with combined lights and reflectors,



warning triangle.

Tab. 3. PTO shaft for rear disc mower

Model Power Lenght Torque Symbol Clutch Producent

KDT 220 ; KDT 260 KDT 300 ; KDT 340 KDT 341 KDT 220 S/SL/W

35 2'12-4'22'' 460 7G4N091CE007096MA

Overrunning

right

BONDIOLI

& PAVESSI

- 7 -

nd with overrunning

To be mounted

Operator’s manual

PTO shaft’s end without clutch – be mounted on the tractor’s side.

Rear disc mowers

KDT

PTO shaft’s e

clutch –

on mower’s side

NOTE:

Lubricate the PTO shaft with high quality multi-purpose grease every 50 shaft operating hours. If access holes are available, lubricate fittings through access holes.

PTO shafts of other brands with equivalent parameters could be used afer first obtaining SaMASZ permission.

The mower is equipped with such elements as holders and brackets used to mount warning lights and plates. Combined lights and reflectors are mounted on the warning plates.

NOTE:

Optional extra equipment should be ordered separately.

Fig. 4. PTO shaft lubrication points. Mounting directions

- 8 -

Operator’s manual

Rear disc mowers

KDT

4. SAFETY PRECATIONS

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 shoes, safety gloves plus ear protection and dust 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 mowing 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 mower to a tractor, the operator should wear protective gloves.



DO NOT operate the mower unless all safety guards are in place and operational. In addition, any damaged protective aprons should be replaced with a new one



DO NOT exceed 600 PTO rpm.

- 9 -

Operator’s manual



No person (except operator) should stand within danger area which is a minimum of 170’

Rear disc mowers

KDT

from any operating part, especially when operating near roads and in areas with stones and other debris.

machine

Be certain that children and animals are at a safe distance away from the

IMPORTANT: Maintenance and adjustment should ONLY be done after the following has occurred:



tractor’s engine has been stopped



all rotating parts have come to complete standstill (NOTE: cutting knives will

and ignition key has been taken out,

rotate for several minutes after engine is turned off),



the cutterbar is on the ground, and



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 knives and knife holders.



When driving on public roads always comply with local traffic regulations, especially those concerning warning lights.



When the mower 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 mower on tractor linkage when the drive is operating and the cutting discs are rotating.



When operating the mower, the tractor should always be equipped with operator protection that is required by laws and regulations.



Never start the mower when the mower blades 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 mower when driving the tractor backwards.



Permissible inclination of the mower on a slope when working and during transport is 8°.

Exceeding this incline can result in mower tipover.



Never stand between tractor and mower unless tractor and mower are secured against moving by the tractor’s brake.



If any maintenance must be done under an elevated mower, it must be blocked or otherwise secured against falling.



When the parts of the mower need replacement, use only original spare parts as described in the spare parts list. Pay particular attention to PTO shaft’s guards and mower’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 mower’s hydraulic system is not under pressure.



The mower should be stored under a roof and in a way as to not be hazardous bot people or animals.



In the event of an accident involving this mower in a field or on a road, follow all applicable first aid procedures and contact SaMASZ technical service.



Mower should be kept clean, so as to avoid danger of fire.

- 10 -

Operator’s manual

Rear disc mowers

KDT

4.2. Conditions of mounting mower on tractor



Prior to the mounting operation, be sure that the tractor and mower hitches are compatible and that the tractor's hitch load is adequate for the machine which is to be mounted or attached.



Prior to mounting the machine, examine the technical condition of the mower's hitch assembly and tractor's 3-point linkage.



Use only genuine cotter pins to mount the mower on a tractor.

4.3. 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 work 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 mower until there are no people or animals around (pay particular attention to children).



While transporting the mower, put a warning plate with combined lights and reflectors and warning triangle on the mower.



During transport, always put the mower in its proper and safe transport position. See section 5.3.



Before putting the mower 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.



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.

- 11 -

Operator’s manual

Rear disc mowers

KDT

4.3.1. Putting the mower onto another vehicle for transport

The driver and the carrier are responsible for the mower’s transport safety. Equipment and parts must be secured during transport. To put the mower onto another vehicle in a safe way, please obey the following rules:



Transport should be done by qualified and specifically trained personnel,



Grab the mower by any lifting devices only in places indicated by hook sign (Fig. 5),

Fig. 5. Transport holders



For mower lifting, use only lifting devices with hoisting capacity larger than mower’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 mower is on the vehicle’s trailer, the machine should be secured against moving.

- 12 -

Operator’s manual

Rear disc mowers

KDT

Fig. 6. Location of centre of gravity on mowers KDT

Tab. 4. Location of centre of gravity

Dimension

[ft in]

KDT 180 KDT 220 KDT 260 KDT 300 KDT 340 KDT 341

Model

A 2′ 5″ 2′ 4″ 2′ 8″ 2′ 4″ 2′ 4″ 2′ 4″

B 5′ 1′ 6″ 1′ 1′ 7″ 1′ 7″

C 2′ 9″ 3′ 2″ 3′ 4″ 3′ 5″ 3′7″ 3′7″

Dimension

[ft in]

KDT 220 S KDT 220 W KDT 260 S KDT 260 SL KDT 260 W

Model

A 2′ 9″ 2′ 9″ 2′ 8″ 2′ 8″ 2′ 9″ B 4′ 5.5″ 8″ 8″ 9″ C 3′ 4″ 3′ 6″ 3′ 5″ 3′ 4″ 3′ 7″

4.4. Working parts



Before operating the mower check knife’s and knife holder’s condition.



Worn or damaged knives or knife holders should be immediately replaced with new one.

4.5. PTO shaft



Before operating, read bar manufacturer's manual placed on the bar. Follow all safety precautions in that manual.



Use only PTO shafts recommended by mower’s manufacturer with guards in good condition.



In order to operate safely, use only undamaged PTO shafts and shields. Damaged PTO shafts and shields must be repaired or replaced with new ones before use.

4.6. Hydraulic assembly



Hydraulic assembly is under high pressure. Hydraulic oil under pressure may penetrate skin and cause serious injury or death. Skin and eyes should be protected when working around this assembly.



In case of injury 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 mower'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.

- 13 -

Operator’s manual



When looking for oil leaks, do so safely. Use a cardboard card. Do not touch any potential

Rear disc mowers

KDT

leaks until the entire hydraulic assembly has been relieved of pressure.



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.



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.

4.7. Residual risk

Despite the fact that SaMASZ, the manufacturer of the mower, has taken great care in the design and manufacturing of the mower, certain risks during mower 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 mower by minors,



operation by individuals who have not read the operator's manual and safety labels,



operation of mower by persons under influence of alcohol or other substances,



not being cautious during transportation and moving mower during operation,



transport of persons who are on the machine,



presence of persons and animals within the mower operation range,



performing servicing and machine adjustments with the engine on.

4.7.1. Danger of machine entanglement

This risk occurs when (1) changing position of a mower, (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 mower.

4.7.2. Danger of cutting injury

This risk occurs during replacement of working parts with sharp edges. During any maintenance work, always use safety gloves.

4.7.3. Danger of injury from liquid ejection out of hydraulic system

During connection of hydraulic hoses to hydraulic connectors, be sure that tractor’s or mower’s hydraulic system is not under pressure. Regularly check hydraulic hoses for leaks.

4.7.4. Forbidden actions

During mower’s operation, do not do the following:



never unblock the mower, make any regulations or repairs of the mower while it is in motion,



never change order of operation and maintenance activities described in operator’s manual,



never operate the mower when it is not in working order or has damaged safety guards,



never get your hands and legs close to rotating parts of the mower,



during repair and maintenance of the mower, always comply with descriptions included in operator’s manual. Always do these activities when the tractor’s drive is off,



never operate the mower under influence of alcohol, drugs, or strong medicine that impair your attention,



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 mower,



the mower should not be operated by children or by handicapped people, When describing residual risk, the mower complies with the state of the art in technology on the date it was manufactured.

- 14 -

correctness of its usage, if the noise level in work place reach

es or exceeds 85 dB

Operator’s manual

Rear disc mowers

KDT

4.7.5. 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 mower 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 exposure to noise cannot be avoided or eliminated by any

protective means or organization of work, the employer (farmer) 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 the

4.8. Safety labels and their meaning

Safety labels are critical to safe use of this mower. They must be read, understood and followed. Also, be sure that:



All warning decals are clean and legible



All lost or damaged decals are replaced by ordering new decals from your dealer or supplier



All persons using this mower have read the section of this manual explaining the meanings of these labels



All spare part used for repair of the mower should have all safety labels provided by the manufacturer.

N-01

Be extremely careful when

PTO shaft is rotating

N-05

CAUTION: belt

transmission, be extremely

careful

N-02 CAUTION: cutting knives. Approach during operation

is forbidden

N-06

CAUTION: pulling-in

parts

N-03

Read the operator’s manual

before putting the mower

into operation

N-07

Operating is forbidden

when any person is within

the danger area of 170'

N-04 While making repairs the machine must be stopped

N-09

CAUTION: rotor

- 15 -

Lubrication point

Watch out: power lines

the mower

steering tractor’s lift

Operator’s manual

Rear disc mowers

KDT

N-11

N-16 N-23

N-32 N-40

N-14 N-15

N-29

Transport hook for lifting of

N-48

Stay a way from mower’s

inclination area

N-63 N-109

N-117

Under pressure. Consult

technical manual for

service procedures

N-49

Never stand near tractor’s

3-point linkage while

N-50

Do not stay in the swinging

area of mower’s parts

N-162 N-167

Do not remain on the

machine while driving

N-55

- 16 -

N-40

N-187

N-149

N-55

N-109

Operator’s manual

Rear disc mowers

KDT

N-168

Do not touch the machine

before the rotating parts

have not come to a complete standstill

N-206

Use the required Personal

Protective

Fig. 7a. Placement points of warning signs on mower without conditioner

N-187

Cutterbar "Perfect Cut"

N-213

(for KDT S/SL)

N-29

N-05; N-16

N-204

Use the required Personal

Protective

N-224 Do not open and remove safety guards with motor

operating

N-32

N-205

Use the required Personal

Protective

N-14; N-15

N-63; N-162

N-01 ; N-02 ; N-03 ; NN-06 ; N-07 ; N-23 ; N-

N-49 ; N-50 ; N-117

N-167 ; N-168 ; N-204

N-205 ; N-206 ; N-224

- 17 -

N-149

N-187

N-205 ; N

206 ; N-224

N-109

N-40

N-201

N-40

Operator’s manual

Fig. 7b. Placement points of warning signs on the mower with tine/roller conditioner

N-29

N-05 N-16 N-32

N-14; N-15

N-63 ; N-162

N-09

N-213

Rear disc mowers

KDT

N-01 ; N-02 ; N-03 ; NN-06 ; N-07 ; N-23 ; N-

N-49 ; N-50 ; N-117

N-167 ; N-168 ; N-204

CAUTION:

Any spare part used for repair of the mower should have all warning decals provided by the manufacturer.

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 mower to the tractor

WARNING:

Only hitch and unhitch machine on a flat surface with compact dirt.

- Keep everyone away from area between mower and tractor.

- Be careful near link road zone of tractor's rear power lift. Contains sharp parts.

Mower’s frame is adjusted to be attached to the tractors with 3-point-linkage (Fig. 8). The mower has been attached, adjust (on the flat ground) the mower’s position by means of top S and lower W links (Fig. 8). The cutterbar should lean towards the driving direction. Lower links W should be connected to 3-point linkage frame pins A. Support chain L holds up mower’s linkage frame. Insert and tighten the safety pins into the pin holes and make sure that they are well locked. Connect hydraulic hose to tractor’s hydraulic connector.

- 18 -

Operator’s manual

Rear disc mowers

KDT

After the mower has been attached to tractor, check the balance and steerability of tractor-mower set. 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 (the mower must be in transport position – lifted upwards). If the pressure on the front axis is at least 20 % of the whole set’s pressure, it means the set is stable. If not, the front axis should be balanced.

Fig. 8. Connecting the mower to the tractor

Fig. 9. a) 1 - pin, 2 - bush, 3 – hole in the bar b) Z - lock

WARNING: Before disconnecting the mower put the pin 1 into the hole 3 in the bar (Fig. 9a) to secure the linkage against falling. When the mower is connected the

pin should be in the bush 2 on the middle bar.

5.2. Preparing the mower for transport

To prepare the mower for transport and to meet safety precautions, please do the following:



lift the mower with tractor hydraulic lift until the lower lift pins of the mower 3-point linkage frame raise about 1' 8'' above the ground (Fig. 11),



lift support leg up and secure it with split cotter,



remove the pin 1 and put it into the bush 2 (Fig. 9a),



lift the cutterbar by hydraulic cylinder vertically until the pawl Z locks in (Fig. 9b),



secure the cutterbar against falling by the shut-off valve (Fig. 10b) placed on the mower’s hydraulic cylinder.

WARNING:

During transport the shut-off valve of mower hydraulic lift should always be closed – the valve lever in Z position (

Fig. 10

). It protects the mower against

incidental falling in case of hydraulic failure.

- 19 -

Operator’s manual

Rear disc mowers

KDT

Fig. 10. Shut-off valve position: a) open(work), b) closed(transport)

'2''

'8''

Fig. 11. Rear disc mower in its transport position

5.3. Preparing the mower for transport on public roads

WARNING:

Legal requirements for transport on public roads may differ from state to state. Check your location’s requirements and comply.

To comply with safety precautions concerning transport on the public roads the mower should be equipped with the following devices:



portable warning-light plates, to be mounted on both sides of mower top guard in their holders. The panel consists of warning plate with combined lamp mounted (parking, stop lights and driving direction) and with red reflectors facing the rear and white light on the front.

WARNING:

Do not drive on public roads if the machine’s transport height is more than 13' 2'' (when transported, transport height should be lowered on the tractor links).

5.4. Mounting PTO shaft

PTO shaft’s end with overrunning clutch should be mounted on mower’s side. When connecting PTO shaft between tractor and mower make sure that external guard tube of the shaft is on the tractor’s side. The PTO shaft plastic guards have to be secured by fastening their small chains to immovable parts of tractor and mower. The PTO shaft must operate at the lowest possible angle. This will ensure that both shaft and the machine last as long as possible.

CAUTION:

If need be, shorten the PTO shaft according to its operator’s manual given by the shaft’s manufacturer (

Fig. 12

- 20 -

Operator’s manual

Fig. 12. Instruction of PTO shaft shortening

CAUTION:

Handle all parts with utmost care. Never place your hands or fingers between one part and the other. Wear safety clothes such as gloves, protective footwear and goggles. The operation of shortening must be carried out with the utmost care as the PTO shaft will have to be replaced if the telescopic shafts are shortened to an excessive extent.

CAUTION: The PTO shaft should be mounted only during operation time and disconnected from tractor PTO for transport and service.

NOTICE:

The manufacturer declines all liability for damage caused by an incorrectly fitted or used PTO shaft.

CAUTION:

Use the machines with PTO shafts designed to drive them. Before the work begins, check the safety guards (in tractor, mower and PTO shaft), if they are placed correctly and are not damaged. Damaged or lost parts must be replaced with genuine ones. Make sure the PTO shaft is properly mounted. It is forbidden to approach the rotating parts, because it may lead to serious injuries or even death. All service and repair operations must be done only after the tractor engine has been stopped and ignition key off, all rotating parts have come to the complete standstill and the cutterbar is on the ground. Before the operation begins, read operator’s manuals of both the machine and PTO shaft.

5.5. Moving from transport to working position

Rear disc mowers

KDT

WARNING:

Moving the mower to and from operating position from the transport position should only take place on even and stable ground. Prior to making the moves make sure whether there are no unauthorized persons exposed to any

The safely move to the operating position, do the following:



open the shut-off valve on the hydraulic cylinder (Fig. 10a),



lower the mower until the cutterbar is at least 1′ 4″ above the ground,



make sure there is nobody around in the place where you are going to lower the mower,

hazardous moving parts.

- 21 -

max. 30º

Operator’s manual



tighten the cord until the lock Z is released (Fig. 10a) and by means of hydraulic cylinder put

Rear disc mowers

KDT

the mower into horizontal position,



with tractor’s lever lower the cutterbar to reach the horizontal position in a possibly slow way,



lower the mower until the support chain tightens. If the 3-point linkage frame is more than



1′ 4″ above the ground, adjust the chain.



By means of link S (Fig. 8) adjust the cutting height. Extending the link S increases the cutting height and shortening the link reduces it.

The proper distance between the end of cutterbar and tractor’s tyre Y should be about 0 to 4″ for KDT 180, KDT 220, KDT 260. For KDT 300 Y should be between 11.8″ and 1′ 4. For KDT 340, KDT 341 between 1′ 8″ and 1′ 12″.

For KDT 180; KDT 220;

KDT 260

Y = from 0 to 4″

For KDT 300 Y = from 11.8″ to 1′ 4″

For KDT 340;

KDT 341

Y = from 1′ 8″ to 1′ 12″

Fig. 13. Proper distance between the cutterbar and tyre

5.5.1. Operating positions of the mower

max. 30º

Fig. 14. Operating positions of the mower

- 22 -

Operator’s manual

Rear disc mowers

KDT

5.6. Preparing the mower for work

NOTICE:

Before sale SaMASZ protects the cylinders with special grease against weather which may cause premature wear. Before operating the mower, remove the exceess grease from the cylinders.

Put the mower into motion when the cutterbar is on the ground so that oil can fill the whole

cutterbar. When the mower is in working position, please do the following:



be sure cutterbar to the ground,



connect PTO shaft between tractor and mower,



by means of upper regulating bar of the mower, adjust the cutterbar’s height and inclination towards the ground. Proper inclination of the cutterbar is between 0° and 5°. It is regulated by extending or shortening the bar,



slowly engage the PTO clutch and wait until the cutting unit reaches its rated speed. Tractor’s engine rpm should be considerably lower, so that the fuel consumption could be reduced,



engage tractor gear and drive slowly into the grass-field. Flat meadows can be mowed with any speed. If the meadow in uneven, reduce speed.

WARNING:

Do not operate the conveyor when it is in vertical position.

NOTICE:

DO NOT pull the cutterbar towards the tractor, because it will lead to cutterbar’s premature wear or even its damage.

WARNING:

Improperly relieved cutting unit of the mower will cause increase of cutterbar pressure on the ground which will lead to faster wear of sliding skids, overload of cutterbar, higher fuel consumption, damage to the stubble and

5.7. Operation (mowing)

contamination of the fodder.

WARNING:

The operator must be seated in the tractor’s driver’s seat when the machine is operating since only from that position is he able safely and properly operate the mower. Before he leaves the driver’s seat, the operator must stop the engine, apply the parking brake and turn off the tractor engine.

Always use appropriate protective equipment (safety footwear, gloves, ear protection and dust mask)

Before using the machine, make sure that all the safety devices are in their correct positions and in a good condition. These safety devices must be immediately replaced if they are faulty or damaged. In particular, the protective cover must be checked regularly. It must be immediately replaced if it is missing or damaged in any way.

IMPORTANT: If a disc mower is your first experience (you have mowed with 2-drum mower), you need a piece of essential information:

1. Main advantage of disc mowers is their small power demand – 20% less tractor power, small moment of inertia and possibility to manufacture mowers with large working width.

- 23 -

Operator’s manual

Rear disc mowers

KDT

2. There is however a certain disadvantage - creased stubble, especially when it comes to lying grass. Straight grass may be mowed with horizontal adjustment of the mower and then the stubble will be even, but it will not look as attractive as with 2-drum or 4-drum mowers, because the knives work horizontally to the ground and inclined grass bends because of wind blasts. After the grass is mowed, it stands up, which makes an impression of inaccurate mowing. Every mower may leave stripes of uncut grass when it comes to the knives which cut the grass towards the grass direction. It is a normal phenomenon. Practically, it is not possible to achieve such attractive stubble as in 2-drum mowers, because the knives work horizontally or at an angle of up to 8° to the ground, and when it comes to 2-drum and 4-drum mowers, slantwise through the ground (even 23°). Despite these ‘disadvantages’, disc mowers are ‘winning farmers’ trust’ and modern technologies give an opportunity to manufacture very durable mowers.

3. The most even stubble with very low grasses is obtained with disc mowers when half of the discs rotate to the right and half to the left. A disadvantage of this system is a narrow and thick windrow which needs to be spread out.

5.7.1. Essential information concerning mowing

Optimum work parameters

1. Inclination towards the front 0-5 degrees which equates to 1.8" - 2.8" of mowing height.

2. Operation speed around 6 mph or more, if the conditions allow.

3. PTO rpm = 470-520 rpm. PTO rpm less than 540 may cause stripes of uncut grass between the

disc.

High and inclined grass

1. Heighten the cutterbar’s inclination to H = about 1.8".

2. If there is no inclination the grass will be wedged on the forming drums.

3. Speed can be more than 8 mph (the faster – the better).

4. Do not turn in the mowed grass.



Optimum inclination of the cutterbar towards the ground is between 0° to 5°. If the inclination exceeds 5°, there might be a slight unevenness of mowed grass. It impairs slightly the quality of mowing and has an influence on the mower’s operation. When the cutterbar is pulled in the other direction, it significantly impairs the quality of mowing and in some cases the mower stops mowing. Besides, it may lead to premature wear or even damage of the slides and cutterbar.



When high grass prevails, first and second cut should be mowed at height level 2.4" - 2.8", but when the grass grows low it should be mowed at 2". The last cut should be mowed a little bit higher, 2.8" - 3" above the ground.



Too high a PTO rpm whirls the air, which may cause inclination of the grass in front of discs, which impairs the quality of mowing.



Too low a PTO rpm impairs the quality of mowing and in some cases the mower stops mowing (too low linear velocity of the knife).



In contrast with 2-drum mowers, straight mounting of the mower and full speed are not always possible. Adjust inclination of the mower, PTO rpm, speed and correctness of knife-mounting to get the best results.



In case of mowing soft meadows, the pressure of the cutterbar on the ground should be reduced by adjusting support springs.



Always check to make sure that the ground speed suits the conditions or work and that it does

not create a potential source of danger



Do not take sharp turns anytime and do not operate in reverse.

- 24 -

device operates

Operator’s manual

Fig. 15. Shape of the stubble with cutterbar’s inclination 0°, 3° and 5°

5.7.2. Design and and operation of safety breakaway device

Rear disc mowers

KDT

In the event of hitting an immovable obstacle one of the safety device flat bars slides out and

disconnects the safety device. After that the mower folds back about 34 degrees (Fig. 17). The operator has time to shut off the tractor and protect the mower. Safety device spring is adjustable (Fig. 16), therefore changing the force needed to make safety device work.

Fig. 16. Safety device

Fig. 17. The mower breaks back when the safety

- 25 -

take turns

to take turns

Operator’s manual

Rear disc mowers

KDT

Recommended length of safety device spring R (Fig. 16) should be 5.6". If the safety device breaks away too easily, tighten up the spring approximately .04"-.08". DO NOT tighten up too much, because you may prevent the safety device from working and damage the mower.

5.7.3. Mower clogging

When operating the mower, pay attention to variable conditions on the field, which may cause the mower to clog, such as: terrain unevenness, height and density of grass as well as other objects in the grass. In order to avoid clogging, mowing speed should be adjusted to the conditions. In order to take care of machine clogging, lower the cutterbar onto the ground, disconnect the drive and remove the ignition key. When eliminating the mower's clogging wear all appropriate protective gear.

5.7.4. Taking turns over swaths

Lift the mower with hydraulic cylinder and take the turn. The mower does not need to be

additionaly lifted by tractor’s 3-point linkage.

Fig. 18a. KDF & KDT mower set prepared to

Fig. 18b. KDF & KDT mower set prepared

5.8. Storing

Mower should be stored in paved, dry places, protected against precipitation. In order to

minimize the space necessary for storage the mower may be stored in a vertical position but always on paved surface. Storing the mower on an unpaved surface may cause the mower to lose stability and turnover.

NOTICE:

When stored for long time (e.g. in winter season), the machine should be in an upright position on paved surface (with closed cylinders). Storing the mowe in a horizontal position may cause faster wearing (rusting) of the cylinder from the inside (through vent valve) by being penetrated by moisture from the air.

5.9. Dismounting mower from tractor

WARNING:

When dismounting, make sure there is no person in between the mower and the tractor.

To dismount the mower from the tractor:



turn cutterbar's drive off,



place the mower on even, paved ground, lower and protect support legs, check, if the mower is properly protected against falling,



turn the tractor's engine off and take ignition key off,



dismount tractor's rpm and place it on a PTO shaft holder, that is standard-delivered with the mower,



disconnect hydraulic hose,



detach tractor's upper link and lower strands from mower's linkage.

- 26 -

Operator’s manual

Rear disc mowers

KDT

6. MOUNTING AND ADJUSTMENTS

6.1. Mounting and timing of the knives

The knives should be mounted as shown in manufacturer recommended knives are measured 105x49x4 and conform to standard PN-EN 795:2002. Mount the knives so that cutting edges are directed towards ground, so that a knife lifts the grass after cutting.

Fig. 19. Mounting of the knives on mowing discs

WARNING:

- Use only knives recommended by manufacturer.

- Check condition of knives and holders before each operation. Worn or damaged knives should be replaced immediately.

6.2. Replacing the knives

Replace knives, if necessary, only in sets. Make sure all knives in a set are of the same length

and weight. The knife holders (Fig. 30) must not be damaged or deformed. If the knife holder pin is worn too much, please replace it immediately.

NOTICE:

During work, if mower begins to shake, it means that the disc (discs) are operating only with one knife. In that case, using the mower in this condition for a long time could cause serious damage to the cutterbar.

WARNING:

When replacing knives, the engine must be stopped and the cutterbar must lie on the ground. PTO shaft must be disconnected. Discs should be perpendicular to cutterbar.

Fig. 20. Quick replacing of the knives with mounting lever

Fig.

19 and Fig. 20. The knives recommended by the

- 27 -

Operator’s manual

6.3. Adjusting the cutterbar

Rear disc mowers

KDT

Swath width is adjusted with swath guides mounted on the 3-point linkage frame of the cutterbar (Fig. 21). In order to adjust the guide, the following should be performed (for: KDT 180, KDT 220, KDT 260, KDT 300, KDT 340):



loosen locknuts (2) and screws (3),



shift the guide arm (6),



tighten screws (3) and locknuts (2),



loosen locknuts (4) and screws (5),



then adjust height and shield angle (7),



tighten screws (5) and locknuts (4).

3 2

Fig. 21. Adjustment of swath guides: 1 - swath guide, 2 - locknuts, 3- arm adjustment screws, 4 - locknuts, 5-

shield adjustment screws, 6- guide arm, 7- shield

In order to set swath width, adjustment of swath guides (1) should be performed (Fig. 22)

(for: KDT 220 S, KDT 260 S, KDT 260 SL):



loosen eye screw (2) of the swath guide,



set the swath guide (1) as needed,



tighten screw (2),



even spreading of swath might be adjusted with wheels (3) the same as it is preformed with guides.

- 28 -

Operator’s manual

Rear disc mowers

KDT

Fig. 22. Adjustment of swath guides: 1- swath guide, 2 - adjustment screw, 3 - swath wheel

In order to set swath width, adjustment of swath guides (1) should be performed (Fig. 23)

(for: KDT 220 W, KDT 260 W):



loosen eye screw (2) of the swath guide,



set the swath guide (1) as needed,



tighten screw (2).

Fig. 23. Adjustment of swath guides: 1- swath guide, 2 - adjustment screw

NOTICE: Before you change the knife check disc turns (Fig. 24).

CAUTION:

Different mounting of the knives will block the mower. When mounting pay particular attention to loose rotation of the knife on the knife holder pin.

- 29 -

Operator’s manual

Rear disc mowers

KDT

NOTICE:

Due to high discs rpm speed, change knife holders in sets of the same weight – each holder has weight marked. Improperly changed knife holders will damage disc bearings.

KDT 180 KDT 220

KDT 260 KDT 300

KDT 340

KDT 341

Fig. 24. Rotation directions of disks

6.4. Adjusting the cutting height

By means of upper link S (Fig. 8) adjust the cutting height.

Extending the link S increases the cutting height and shortening the link reduces it. Cutting height is shown by the scale placed on the 3-point linkage frame (Fig. 25), recommended height is 1.8"÷2.8".

Fig. 25. Cutting height scale

Disc with the

forming drum

Disc without

the forming drum

- 30 -

~1'4"

Operator’s manual

6.5. 3-point linkage support chain

Support chain is used to ensure 3-point linkage frame of the mower is always at the same

height, to set the mowing unit parallel to the ground and to relieve the hydraulic lift of the tractor. When connecting mower to the tractor, the hanger plate A of support chain should be disconnected from chain and put on the pin B of upper link (Fig. 26a). Then the mower has to be lifted with hydraulic lift about 1'4" high (Fig. 26b). The support chain is then connected to the hanger plate A, so that is tensioned when the mower is in its working position. If the 3-point linkage frame is more than 1'4" above the ground, adjust the chain.

6.6. Adjusting the space between tine conditioner’s mask and its shaft

(Models: KDT 220 S and KDT 260 S(SL))

Depending on size and thickness of the mowing grass, there may be a necessity to adjust the mask of the conditioner. The higher and thicker grass, the bigger the space between conditioner’s mask and its shaft should be. Proper adjustment should be based on the experience, in order not to block the conditioner and not to activate the friction clutch of PTO shaft. The way how the mask is regulated is shown in Fig. 27.

Fig. 27. Adjusting tine conditioner’s mask

Fig. 26. Support chain

Rear disc mowers

KDT

- 31 -

Operator’s manual

Rear disc mowers

KDT

6.7. Replacing the conditioner’s tines

(Models: KDT 220 S and KDT 260 S(SL))

Prior to commencing any operation, check condition of bolts on which flails are set, as well as

condition of fails themselves. If flails or bolts are worn or damaed, it is necessary to replace them.

Bear in mind, that flails should be replaced in pairs (opposite) featuring the same weight

in order to keep shaft well balanced. Not keeping the shaft well balanced may lead to premature

wearing of bearings as well as the shaft itself.

Replacement of flails 3 consists in unscrewing of nuts 2, removing bolts 4 and mounting

brand new flails 3 (Fig. 28).

NOTICE:

In order to tighten screw connection use special purpose bolt M16×60 z.

Property Class 10.9 and self-protected nut M16 z. Property Class 8.8; torque

down until tight.

1. Scarfier shaft

2. Self-locking nut M16 z. Property Class 8.8

3. Flail

4. Bolt M16x60 kl. 10.9

1. Scarfier shaft

2. Self-locking nut M16 z. Property Class 8.8

3. Washer

4. Plastic flail

5. Bolt M16x60 kl. 10.9

6. Plastic flail insert

Fig. 28b. Replacement of flails in light-weight conditioner roller

Fig. 28a. Parts of tine conditioner

- 32 -

Operator’s manual

Rear disc mowers

KDT

Tab. 5. Torque values for bolts

In the absence of specific torque values, the following chart can be used as a guide to the maximum safe torque for a particular size and grade of fastener. There is no torque difference for fine or coarse threads. Torque values are based on clean, dry threads. Reduce value by 10% if threads are oiled before assembly.

6.8. Adjusting force of the prssure of roller conditioner

(Models: KDT 220 W and KDT 260 W)

If need be, the force of the roller conditioner’s pressure can be regulated by changing the tension of springs S (Fig. 29) by means of the nut N. Adjustment should be done on both sides of the conditioner

Fig. 29. Adjusting the force of the pressure of roller conditioner

6.9. Maintenance and service

6.9.1. Checking the knives and knife holders

All knives should have the same lengths and weights. Always check mower before starting work for damaged, missing and/or worn knives. Replace them, if necessary, only in sets.

If the knife holder pin is worn too much and/or the knife holder is worn or deformed, please replace it immediately (Fig. 30).

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Operator’s manual

Rear disc mowers

KDT

10min.

Fig. 30. Permissible wear of knife holder pin on disk a) knife base M12 b) knife base M12 with claw

NOTICE:

If the knife is missing or disc cover plate is damaged the vibrations may occur, which leads to cutterbar’s damage. In that case warranty claim will be revoked. If the disc or disc cover plate is damaged, the whole set must be immediately replaced (2 knives) with new genuine ones.

6.9.2. Checking the tension of the V-belts

Check the V-belt tension. V-belts are tensioned with spring tensioner (Fig. 31) equipped with checking plate. Distance S between plate tip and holder should be 0.4". If the gap is wider the V-belts will be looser. Tensioning is done by nuts N. When any of the belts are damaged, the complete set must be replaced.

Fig. 31. Spring V-belts tensioner

6.9.3. Inspection of tension of toothed belt for gears of rollers and conditioner

Drive from cog gear shaft is transmitted on rollers/conditioner roller axles through toothed belts. Constant belt tension is provided by tensioner adjustable with tensioning nut N (Fig. 32b)

Belt tightening can be checked through eye O (Fig. 32a and c). In order to tension the belt remove safety guard (Fig. 32a and c) having unscrewed four nuts S. Then, tension the toothed belt using tensioning screw and nut N (Fig. 32b and d). Properly tensioned belt, when pressed with thumb in the middle should deflect by approx.. 0.2".

- 34 -

Operator’s manual

Fig. 32a. Rollers transmission guard

Fig. 32c. Conditioner roller transmission

6.9.4. Daily maintenance

guard

Rear disc mowers

KDT

Fig. 32b. Adjusting tension of transmission

toothed belt

Fig. 32d. Adjusting tension of toothed belt for

conditioner roller transmission

When you finish each day of operation carry out the following maintenance:



check all visible parts and components and their connections; tighten all loose bolts and nuts and replace all damaged and/or worn parts with new genuine ones,



clean the mower, especially between discs and cutterbar, because grass with mud may damage bearings in disc module,



remove grass and mud,



check the cutterbar,



grease PTO shaft tubes with STP grease,



if necessary, lubricate the parts and components according to lubrication instructions (chapter7). Parts which may cause risk to operator’s health and safety are as follows: damaged discs, missing or damaged safety covers, worn or damaged hydraulic hoses, PTO shaft guides, worn knives and knife holder pins.

6.9.5. After-season maintenance and storing of machine

At the end of mowing season the following shall be performed:



lower the mower’s cutterbar onto the ground,



take the PTO shaft extension out of the tractor rpm or dismount the complete PTO shaft and

install it into corresponding holder at the 3-point linkage frame,



unmount hydraulic and electrical hoses from the tractor and hang them onto corresponding

holders on the 3-point linkage frame,

- 35 -

Operator’s manual



unmount the mower from the tractor (reverse procedure as in case of attaching the mower to

Rear disc mowers

KDT

the tractor item 5.1), and then drive the tractor away.

Mower should be stored in standstill position, so it is supported onto supporting leg and the cutterbar. It is recommended to store the set on paved ground, preferably in roofed places, inaccessible to unauthorized personnel or animals.

If the machine is stored for a long period of time before first operation, its technical condition should be examined and special attention should be paid to the hydraulics and the drive. Paint the area where the paint is missing, hydraulic hoses checked and lubricated.

Additionally:



remove any traces of rust and paint the area,



check the oil level in the angle drives and the cutterbar (Section 7). If leaks are discovered, they

should be repaired immediately and lost oil replaced. If water in oil is discovered, immediately change the oil as it could cause corrosion of internal mechanisms such as gear wheels, bearings, or shafts, and cause breakdowns,



periodically inspect the mower and lubricate moving parts in order to protect them from

corrosion which adversely affects the proper operation of the mower,



check hydraulic hoses regularly. Replace any damaged or old hoses. In any case, you should replace hoses that have been in use more than 5 years from the date of their manufacture printed on the hose.

7. LUBRICATION

7.1. Cutterbar

Refilling the oil of the cutterbar is done through the inlet A (Fig. 33). Proper oil level is 0.2" -

0.3" from the cutterbar bottom. Oil capacities are given in table below.

Tab. 6. Oil capacities

Model Oil capacity [l] Oil type Lubrication frequency

KDT 180 – 5' 11" 3.5

KDT 220 S/W – 7' 3" 4.5

KDT 260 S,SL/W – 8' 6" 5.0

KDT 300 – 9' 10" 6.0

KDT 340 – 11' 2"

KDT 341 – 11' 2"

6.5

80W90

(if working intensively more frequently)

Once every 3 seasons

Fig. 33. Point of oil inspection a) and manner of oil replacement in cutterbar b)

In order to drain oil out of the cutterbar, firstly lift the mower up onto tractor's links and then

dismount the cutterbar closure as shown on Fig. 33b and tilt the cutterbar so, as to enable the old oil to drain. Oil drained out of the cutterbar should be disposed in a proper manner.

- 36 -

[

US gal lqd

]

(if working intensively)

Operator’s manual

Rear disc mowers

KDT

7.2. Intersecting axis gear

Everyday before starting work please check the oil level and, if needed, please refill after

having removed the vent A on the top of the gear (Fig. 34). The oil level can be checked through the check opening B on the side of the gear. Please refill the oil until it is visible in the check opening B. The oil capacity: about 0.26 US gal lqd.

Tab. 7. Oil capacities

Oil

Model

Capacity

[US gal lqd]

Oil type Lubrication frequency

All types

0.26

Transol 680 ÷ 1000 (acc. to ISO 3448 oil

viscosity grade :

VG-680 – 1000 )

Once every 3 seasons

(if working intensively

more frequently)

Fig. 34

IMPORTANT:

The above instructions should be strictly followed. If the discs in the cutterbar rotate loosely, do not worry about the high intersecting axis gear temperature; after long working time it may reach even 100oC.

7.3. Roller conditioner’s gearbox

Before you check the lubrication of the gearbox, please remove the safety guard. Everyday

before starting work please check the oil level and, if needed, please refill after having removed the vent A on the top of the gearbox (Fig. 35) The oil level can be checked through the check opening B on the side of the gear. Please refill the oil until it is visible in the check opening B. The oil level: about 0.13 US gal lqd. Check oil level when the cutterbar is on the ground. Removing the worked oil from the gearbox is done through the outlet C.

Tab. 8. Oil capacities

Model

Oil capacity

Oil type – for gearboxes Lubrication frequency

All models 0.13 80W90

Fig. 35. Roller conditioner’s gearbox

lubrication points

Once every 3 seasons

Lubrication

point

Fig. 36. Bearing lubrication

point with LT43 grease

- 37 -

with LT43 grease

with

LT43 grease

uspension with STP grease

with STP grease

Operator’s manual

Lubrication

point

Rear disc mowers

KDT

Lubrication

points

Fig. 37. Bearing lubrication point

Fig. 38. Bearing lubrication point

7.4. Bearings and joints

Every 50 mower working hours lubricate tine/roller conditioner’s bearings (Fig. 36, Fig. 37, Fig. 38) with LT43 grease (or other designed to lubricate rolling and slide bearings, that work in -

30oC do+130oC) and main joints of the mower (Fig. 39, Fig. 40) with STP grease.

Lubrication point

Fig. 39. Lubrication point of the

Fig. 40. Lubrication point of the suspension

- 38 -

1 Lack of knives

Put on

knives

2 Worn knives

Replace knives

(left

– right)

instructions

(The most frequent mistake

)

6 Too low work speed

Speed up to V

≥10 km/h

spring tension acc. to instructions

Worn V

belts

– Replace V

belts

8 Damaged tractor’s PTO

Repair

aroun

d 380 rpm

1200 rpm

very small grass or after the rain

4 cm

Too low work speed

Speed up to 10 km/h or more

maximum

instructions

Worn elements of safety device

Replace the safety device

transmitted from the tractor

Damaged bearings in the disc hub

SaMASZ service

and check valve

connector and check valve

Tractor’s hydraulic system is damaged

Check tractor’s hydraulic system

and replace damaged sealings

work

and if need be replace

Operator’s manual

8. MALFUNCTION AND THEIR REPAIRS

Tab. 9. Defects and their repair

Defect Reason Repair

Rear disc mowers

KDT

Mower stops working

(partly)– leaves stripes of

uncut grass between the discs

The grass is wound on the

forming drums

Grass blocks the mower –

lack of grass flow or the flow

is uneven Safety device is working often incorectlly without

clear reason

Mower does not work, even

though the drive is

Mower with either tine or roller conditioner may mow improperly in case of

Mowing lying grass without inclination

Improperly mounted knives

Improper front inclination

Too high PTO rpm

Slidind V-belts

Check tractor’s PTO if it has 540 E.

E stands for economical rpm –

towards the front

Swath guides are set too narrow

Insufficient spring tension

Torn off shaft of intersecting axis gear

Put on knives strictly acc. to

Adjust inclination strictly acc. to

Reduce PTO rpm

Too low spring tension – regulate

In that case operate with 1000 PTO rpm but low tractor’s rpm – around

Always mow low and fast –

inclination towards the front –

Widen swath guides to the

Adjust spring tension acc. to

Replace intersecting axis gear

023.01.COER

Mower is blocked

Mower’s hydraulics does not

work

Leaking cylinder Dirty oil in hydraulic unit of the tractor

Excesive vibration during

Oil leak in gear Not tight assembly

Damaged gears in the cutterbar.

Damaged or dirty hydraulic cylinder

Damaged PTO shaft

This repair must be done by

Replace or clean hydraulic

Replace oil in hydraulic unit of the

tractor (recommended class of

cleanliness of oil according to NAS 1638 is minimum 9-10).

Purchase repair kit of the cylinder

Check the condition of PTO shaft

Examine tightness and check oil

level.

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Operator’s manual

Rear disc mowers

KDT

9. DISASSEMBLY AND WITHDRAWAL FROM USE

9.1. Scrapping

If the mower cannot be repaired anymore, it should be withdrawn from use

To do so, oil from intersecting axis gear and cutterbar should be drained and delivered to a proper waste treatment company. Clean the mower parts, dismantle and dispose properly of all plastic parts. After that, the mower can be scrapped.

10. WARRANTY CARD

REAR DISC MOWER

Serial number Date of manufacture Manufacturer’s stamp QC signature

Date of purchase Dealer’s stamp Dealer’s signature

The product quality has been checked and meets the required standards and regulations and is permitted for use.

NOTE:

A warranty card without the required information or with corrected or illegible information – is invalid.

11. WARRANTY TERMS

11.1. Warranty claims procedures

1. The manufacturer guarantees its products against faults in materials or production.

2. The warranty period is for two years from the date of sale to the purchaser, stated above.

3. Any repair which is subject to warranty should be carried out by an authorised SaMASZ dealer.

Upon completion of the repair the dealer must submit a warranty claim within 14 days.

4. Warranty claims regarding replacing of the product or repayment are considered within 14 days

by the manufacturer.

5. The following cases are not covered by warranty:

a) wearing parts: mowing discs, sliding skids, sidle bushings Pcw, intersecting axis gears

and parts inside the gearboxes, bushings and sliding elements, joints, knife holders, cutting knives, V-belts, chain gears, drivechain, conditioner’s tines and rollers, roller conditioner’s rubbers, bearings, rubber-metal fenders, safety curtains, conveyor’s belts, swath guides rubbers, connective elements, etc.

These repairs may be done only at purchaser’s cost. b) use for any other purpose than those described in the operator’s manual, c) operation on stoney fields and results such as: damage of tine conditioner's shaft, discs,

bending of cutterbar (stone with its diameter of 5.5" will not move between the discs

and conditioner's shaft, d) running into any obstacle, e) too fast lowering of the cutterbar to the ground,

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Operator’s manual

Rear disc mowers

KDT

f) transport and accidental damage, g) breaking, damage of tine conditioner's shaft, conveyor's belt.

6. The Purchaser bears the costs of technical evaluation - when the manufacturer finds that a claimed product is free of defects and a technical report confirms that.

7. The manufacturer has the right to cancel a warranty in the following cases:

a) interference of the interior of the mower, changes of its mechanical design or

intentional damages, bending parts of the mower and so on. b) operating with only 1 knife on the disc or without disc cover plates. c) damage caused by accidents, running into obstacles or other events, for which

the warrantor is not responsible, d) using of knives, knife holders and mountings other than originally delivered by

SaMASZ, e) negligent maintenance, f) use of non-genuine spare or replacement parts that are not specifically designed for

the model in question, g) lack of needed records in the warranty card or filling in the warranty card

independently, h) use of the mower not in accordance with operator’s manual or for incorrect purpose,

or use of the machine by untrained persons.

8. Manufacturer can break the service agreement with immediate effect when the user does not pay the invoice according to that agreement in a timely manner and the delay in payment is longer than 30 days from maturity date. Breaking the service agreement caused by the user also invalidates the warranty.

NOTE:

Please ask your dealer to complete and return the warranty card, otherwise you may lose your warranty rights.

The warranty card is valid only when it contains the following information: address, date and place of purchase, mower type and invoice number.

11.2. Warranty repairs record

Repairs description and changed spare parts

Date, stamp and signature of repair shop

Date, stamp and signature of repair shop.

Date, stamp and signature of repair shop

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2 3

3 1

Operator’s manual

Rear disc mowers

KDT

APPENDIX

CALCULATING AXIS LOAD

ATTENTION!

When mounting the machine on a tractor using front and/or rear 3-point linkage, a maximum value of permissible load cannot be exceeded – tractor's front axis load must be 20% of the tractor's overall weight. Before using the tractor-machine assembly, check whether these conditions are met, while calculating and weighing the assembly.

1. Defining the total weight, axis load, tyre load capacity and minimum load.

For calculations the following data is necessary:

T [lbs.] Tractor's overall weight

TP [lbs.] Front axis load on unloaded tractor

TT [lbs.] Rear axis load on unloaded tractor

MP [lbs.]

Total weight of machine mounted on front 3-point linkage or weight of front ballast

MT [lbs.]

A [ft.]

B [ft.] Distance between tractor's axes

C [ft.]

D [ft.]

Total weight of machine mounted on rear 3-point linkage or weight of rear ballast

Distance between centre of gravity of machine mounted on front 3-point linkage / front ballast and tractor's front axis centre

Distance between tractor's rear axis centre and centres of ball joints on tractor's lower links

Distance between centres of ball joints on tractor's lower links and centre of gravity of machine mounted on rear 3-point linkage / rear ballast

Refer to tractor's operation manual

Refer to technical data for machine in operation manual or price list

Dimensions / measurement

- 42 -

Operator’s manual



Calculating minimum weight of front ballast M

Rear disc mowers

KDT

– machine mounted at tractor's rear or

P min.

at rear and front:



Calculating minimum weight of rear ballast M

– machine mounted at tractor's front:

T min.



Calculating real axis load at tractor's front axis T

* If machine is mounted on tractor's front 3-point linkage (MP) it is lighter than minimum required load at the front, so

increase the weight of this machine to the required minimum load



Calculating total weight of tractor-machine assembly MC:

* If machine is mounted on tractor's rear 3-point linkage (MT) it is lighter than minimum required load at the rear, so increase the weight of this machine to the required minimum load



Calculating real axis load at tractor's rear axis T



Tyre load capacity – apply double the load indicated by the tyres' manufacturer.

T rzecz.

ENTER THE ABOVE CALCULATION DATA AND TECHNICAL DATA PROVIDED BY THE MANUFACTURER IN THE BELOW TABLE.

Real value from

calculations

Value to

technical

specification

Minimum weight of front or rear ballast

Pmin.

or M

Tmin.

Total weight

≤

Front axis load

P rzecz

≤

Rear axis load

T rzecz.

≤

Minimum ballast must be reached by mounting the machine or additional weights provided on the tractor. Values resulting from calculations should be lower than or even to values given in technical specification.

P rzecz

Double value of

tyre capacity

load

≤

SaMASZ KDT 180, KDT 220 W, KDT 220, KDT 220 S, KDT 260 Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual