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KUHN
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GMD 600 G II-HD
Operators Manual
48 pgs1.28 Mb0

KUHN GMD 700 G II, GMD 600 G II, GMD 800 G II, GMD 600 G II-HD, GMD 700 G II-HD Operators Manual

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ASSEMBLY / OPERATOR'S MANUAL
GMD 600 G II / 700 G II / 800 G II
GMD 600 G II-HD / 700 G II-HD / 800 G II-HD
MULTIDISC MOWER
N° 95009 D.GB - 06.2006
DEAR OWNER,
This manual contains all the necessary information for you to receive full efficiency from your machine. The performance you get from this machine is largely dependant upon how well you read and understand this manual and apply this knowledge. Please DO NOT ASSUME THAT YOU KNOW HOW TO OPERATE AND MAINTAIN YOUR MACHINE before reading this manual carefully. KEEP THIS MANUAL AVAILABLE FOR REFERENCE.
Your KUHN dealer will instruct you on the general operation of your machine. He is interested that you get the best performance possible and will be glad to answer any special questions that may arise regarding the operation of the KUHN machine.
Your KUHN dealer can offer a complete line of genuine KUHN service parts. These parts are manufactured and carefully inspected in the same factory that builds the machine to assure high quality and accurate fitting of any necessary replacements.
When ordering service parts it is important that you indicate the type of machine concerned and its serial number.
For this reason please complete the model identification plate diagram below with the required information. This will provide you with an easy reference for future service parts orders.
ABOUT IMPROVEMENTS
KUHN is continually striving to improve its products and, therefore, reserves the right to make
improvements or changes when it becomes practical to do so, without incurring any obligations to make changes or additions to the equipment sold previously.
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CONTENTS
Page
Safety 2 Safety decals 8 Technical specifications 11 Assembly 11 General information 17 Adapting to the tractor 18 P.T.O. shaft 21 Transport 22 Working position 23 Operating the mower 24 Adjustments 25 Parking the machine 27 Adjustments and maintenance 28 Lubrication 34 Optional equipment 36 Trouble shooting guide 4 0 Storing the mower 41 Limited warranty 42
Copyright 2006 KUHN S.A.
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SAFETY
The symbol above is used throughout this manual every time recommendations are made concerning your safety, the safety of others, or the good operation of the machine. These recommendations must be made known to all machine operators.
DESIGNATED USE OF THE MACHINE
GMD 600 GII / 700 GII / 800 GII / 600 GII-HD / 700 GII-HD / 800 GII-HD Disc Mowers must only be used for the
work which they have been designed : mowing on the ground of hay fields, grass silage fields and improved pastures for the purpose of harvesting fodder for feeding livestock.
The manufacturer is not held liable for any damage resulting from machine applications other than those specified by the manufacturer.
Any use other than the designated operation is at the risk and responsibility of the operator. Designated use of the machine also means :
- following operation, maintenance and repair recommendations given by the manufacturer ;
- using only genuine spare parts, equipment and accessories as designated by the manufacturer. GMD 600 GII / 700 GII / 800 GII / 600 GII-HD / 700 GII-HD / 800 GII-HD Disc Mowers must only be operated,
maintained and repaired by competent persons who are familiar with machine specifications and operation and are aware of any danger involved.
The operator must imperatively respect current legislation concerning :
- accident prevention,
- work safety,
- public traffic circulation. All safety advice indicated on the machine must be strictly observed. The manufacturer is not held liable for any damage resulting from machine modifications carried out by the operator
himself or by a third party without previous written agreement from the manufacturer.
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GENERAL SAFETY RECOMMENDATIONS
Before operating the machine, always ensure that tractor and machine are in accordance with work safety and road traffic regulations.
BASIC PRINCIPLES
1. In addition to the recommendations given in this manual, legislation on work safety and accident prevention must also be respected.
2. Advice is indicated on the machine, specifying safety recommendations in order to prevent accidents.
3. Before travelling on public roads, the operator must ensure that the machine conforms to road traffic regulations.
4. Before starting work, the operator must be familiar with all machine controls, handling devices and their functions. Once at work, it is too late to do so !
5. Do not wear loose clothing which could become caught up in moving elements.
6. Use a tractor equipped with a safety cab. Keep windows and roof hatch closed for reduced sound level while operating the PTO driven implement.
7. Before starting up the machine and beginning work, check the surrounding area (beware of children !). Make sure there is sufficient visibility. Keep all people and animals away from the danger zone of the machine (risk of projection!).
8. Carrying people or animals on the machine when working or in transport is strictly forbidden.
9. Machine must only be attached to tractor using means provided and in accordance with current safety standards.
10. When attaching or removing the machine, place the parking stand into the corresponding position.
11. Special care should be taken when attaching or removing the machine from the tractor.
12. Before attaching the machine, ensure that the front tractor axle is sufficiently ballasted. Ballast is to be placed on the supports provided in accordance with instructions of the tractor manufacturer.
13. Do not surpass the maximum axle load or the overall transport weight as prescribed by the tractor manufacturer.
14. Do not surpass the maximum transport width authorized by road traffic regulations.
15. Before transporting the machine on public roads, ensure that all legally required guards and indicators (lights, reflectors ...) are in place and in good operation.
16. All operating controls (cords, cables, rods ...) must be positioned so that they cannot be set off accidently, risking accident or damage.
17. Before transport on public roads, locate the machine into its transport position as instructed in this operator’s manual.
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18. Never leave the tractor seat while the machine is operating.
19. Drive speed must be adapted to ground conditions as well as roads and paths. Always avoid abrupt changes of direction.
20. Precision steering, tractor adherence, road holding and efficient braking are influenced by the type of implement, weight, ballast of front axle, ground or road conditions. It is therefore of utmost importance to be cautious in every given situation.
21. Be particularly cautious when turning corners, paying attention to machine overhang, length, height and weight.
22. Before operating the machine, ensure that all safety guards are firmly in place and in good condition. If worn or damaged, replace immediately.
23. Before operating the machine, check tightness of nuts and bolts, particularly on tool fixing elements (blades, tines, knives, spades ...). Retighten if necessary.
24. Keep clear of the machine operating area.
25. WARNING ! Danger of crushing and shearing can exist when components are operated by hydraulic or pneumatic controls.
26. Before leaving the tractor or before adjusting, maintaining or repairing the machine, turn off the engine, remove ignition key and wait until all moving parts have come to a complete stop.
27. Do not stand between the tractor and the machine unless the hand brake is tight and/or stops have been placed under the wheels.
28. Before any adjustments, maintenance or repairs are carried out, ensure that the machine cannot be started up accidentally.
ATTACHMENT
1. When attaching or removing the machine from the tractor, position hydraulic lift control lever in such a way that
it cannot be set off accidentally.
2. When attaching the machine to tractor 3-point linkage, ensure that diameter of link pins corresponds to diameter
of ball joints.
3. WARNING ! Danger of crushing and shearing can exist in the lifting zone of the 3-point linkage !
4. Do not stand between the tractor and the machine when operating the outer control lever of the lift mechanism.
5. In transport, the machine lift mechanism should be stabilized by tractor tie rods to avoid floatation and side
shifting.
6. When transporting the machine in the raised position, lock the lift control lever in place.
7. Do not operate the machine with narrow wheeltrack tractors when working or transporting on uneven or sloping
terrain.
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POWER TAKE-OFF
1. Only use PTO shaft supplied with the machine or recommended by the manufacturer.
2. PTO guards must always be in place and in good condition.
3. Check for correct PTO overlap when at work and in transport.
4. Before attaching or removing the PTO shaft, disengage PTO shaft, turn off engine and remove ignition key.
5. If a primary PTO shaft is equipped with a slip clutch or a free wheel, these must be fitted on the machine PTO.
6. Ensure that PTO shaft is always correctly fitted and locked into place.
7. Make sure guards are correctly in place and secured with the safety chains provided.
8. Before engaging PTO, ensure that PTO speed (rotational frequency) and direction are in accordance with
manufacturer's recommendations.
9. Before engaging PTO, keep all people and animals clear from the machine.
10. Never engage PTO shaft when tractor motor is turned off.
11. Never surpass PTO angle recommended by the manufacturer.
12. WARNING ! Rotating elements can continue turning momentarily after PTO is disengaged. Keep clear until all
rotating elements are at a standstill.
13. When removing the machine, locate PTO shaft on the supports provided.
14. Fit safety cap on tractor PTO.
15. Replace any worn or damaged PTO guards immediately.
HYDRAULIC SYSTEM
1. WARNING ! Hydraulic system is under pressure (maximum working pressure : 200 bars/2900 psi).
2. When fitting hydraulic motors or cylinders, ensure that connections have been made correctly, as per
manufacturer’s instructions.
3. Before connecting hoses to the tractor hydraulics, ensure that tractor and machine circuits are not under
pressure.
Rotation speed ... rpm (American Measure) is also expressed in metric measure : Rotational frequency ... min
-1
. Both
units are equivalent, for example : Rotation speed 540 rpm equals Rotational frequency 540 min-1.
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4. It is strongly recommended that the operator marks the hydraulic connections between tractor and machine to
avoid making a wrong connection. WARNING ! Functions could be reversed (for example : lift/lower).
5. Regularly check the hydraulic hoses ! Replace the hydraulic hoses every 5 years. Damaged or worn hoses must
immediately be replaced . When replacing the hydraulic hoses, make sure to use hoses with the specifications and quality recommended by the manufacturer of the machine.
6. Should a leak be found, take all necessary precautions to avoid accidents.
7. Any liquid under pressure (particularly oil from hydraulics) can penetrate the skin and cause severe injury. If
injured, see a doctor immediately, there could be danger of infection.
8. Before any adjustments, maintenance or repairs are carried out, lower the machine, depressurize the circuit,
turn off the engine and remove ignition key.
MAINTENANCE
1. Before checking any machine malfunction and before adjusting, maintaining or repairing the machine, disengage
PTO, turn off engine and remove ignition key.
2. Check tightness of nuts and bolts regularly. Retighten if necessary.
3. If the machine is raised, prop it up in a stable position before carrying out any maintenance work.
4. When replacing a working part, wear protection gloves and only use standardized tools.
5. It is forbidden to discard any oil, grease or filters. These must be given to waste disposal organisations to protect
the environment.
6. Disconnect power source before any work is done on the electric system.
7. Check safety guards regularly, particularly those that are subject to wear. Replace immediately if damaged.
8. Spare parts used must be in accordance with specifications and standards as defined by the manufacturer. Use
only genuine KUHN parts !
9. Before any electric welding is carried out on tractor or attached machine, disconnect generator and battery
terminals.
10.Repairs on elements under pressure or tension (springs, accumulators etc.) must only be carried out by
competent persons with standardized equipment.
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SPECIAL SAFETY RECOMMENDATIONS
1. Use a tractor equipped with an enclosed cab with windows made of safety glass and kept closed. It is
recommended to fit polycarbonate screens inside the tractor safety cab's side and rear windows or to install mesh guards on the exterior of them.
2. Stay a safe distance away from the mower when discs are rotating.
3. For safe machine operation, it is imperative that cutting tools be fitted in accordance with the manufacturer’s
recommendations. Use only the tool outfit supplied with the machine.
4. Each time before using the mower, inspect condition of cutting elements (knives, discs). Replace any missing,
worn or damaged cutting elements immediately. Use only genuine KUHN spare parts.
5. To avoid creating dangerous out of balance forces, always replace missing, damaged or worn knives in pairs.
6. When replacing knives or discs, systematically inspect their securing elements as per the manufacturer’s
recommendations.
7. Regularly inspect the disc mower’s protection cover. Worn or damaged protection covers must be replaced
immediately.
8. Protection devices (such as guards, shields etc.) are intended to prevent stones, rocks or other foreign objects
from being projected. They also prevent access to the machine’s danger zones. Therefore, it is imperative that protection devices are put in place and properly secured each time before using the machine.
9. Crushing and shearing zones which could cause serious bodily injury when changing the machine from transport
to work position and vice versa may exist. To prevent possible injury, be extra careful when maneuvering and ensure that everyone is at a safe distance away from the machine.
10.PTO drive to the mower must never be engaged unless the cutterbar skid shoes are in contact with the ground
and the protective cover is folded down.
11.Ground of the pastures to be mown must be free of foreign objects.
12.Even when the machine is used in accordance with its purpose, objects may be projected. It is therefore
imperative that everyone be kept away from the danger zone, that extra care be taken and that extra precaution (such as safety indicators) be taken when mowing pastures alongside roads or near public areas (parks, schools etc.).
13.Never mow in reverse.
14.When disengaging the PTO drive, moving parts continue to rotate for some time. Wait for all moving parts to come
to a complete stop before approaching the machine.
15.If an obstruction is hit, stop the tractor immediately, disengage PTO drive, turn off engine, remove ignition key
and wait for all moving parts to come to a complete stop. Check the entire machine for any damage before resuming work.
16.It is strongly recommended to have your machine checked by your dealer after each season, especially blades
and discs and their fixing devices (nuts, bolts etc.).
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SAFETY DECALS
THE FOLLOWING SAFETY PICTORIALS HAVE BEEN PLACED ON YOUR MACHINE IN THE AREAS INDICATED. THEY ARE INTENDED FOR YOUR PERSONAL SAFETY AND FOR THE SAFETY OF THE PEOPLE WORKING WITH YOU. THE TEXT SHOWN ON THEM GIVES THEIR PRECISE MEANING. KEEP THE PICTORIALS LEGIBLE. IF THEY ARE NOT, REPLACE THEM.
1
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2
3
4
5
6
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8
7
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Number of discs 6 7 8 Width of cut 2.40 m / 7' 10" 2.80 m / 9' 2" 3.10 m / 10' 2" PTO power requirement 31 kW (42 hp) 37 kW (50 hp) 41 kW (56 hp) P.TO. speed (rotational frequency) 540 rpm (min-1) 540 rpm (min-1) 540 rpm (min-1) Disc speed (rotational frequency) 2986 rpm (min-1) 2986 rpm (min-1) 2986 rpm (min-1) Width in transport position *0.17 m (7") wider than tractor width Lift system **hydraulic **hydraulic **hydraulic Weight (approx.) :
- GMD 600 GII / 700 GII / 800 GII 535 kg / 1177 lbs 567 kg / 1247 lbs 646 kg / 1421 lbs
- GMD 600 GII-HD/700 GII-HD/800 GII-HD 548 kg / 1206 lbs 582 kg / 1280 lbs 663 kg / 1459 lbs
Bevel gearbox oil capacity 0.45 l / 1 US pint Oil quality : SAE 80 W EP (GL4) 0.75 Imp pint
Cutterbar oil capacity 2.00 l / 4.25 US pint 2.25 l / 4.75 US pint Oil quality : SAE 80 W EP (GL4) 3.5 Imp pint 4 Imp pint
* Applicable if machine is attached in such a way that a 5 cm / 2" distance "A" is respected (see page 18). ** On tractor side a single acting outlet (preferably with free floating position) is required.
ASSEMBLY
To facilitate shipping of the disc mowers, certain parts or assemblies are partially disassembled to reduce bulk. To assemble these parts proceed as follows :
TYPE GMD 600 GII GMD 700 GII GMD 800 GII
GMD 600 GII-HD GMD 700 GII-HD GMD 800 GII-HD
TECHNICAL SPECIFICATIONS
1. Fitting the break-away latch
Fit break-away latch (P) on headstock yoke (Q) and main frame yoke (R) with 2 pins (S) and 4 roll pins (T) (dia. 6 x 36) as shown in photo 1.
*0.21 m (8") wider
than tractor width
1
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2. Mounting chassis to cutterbar
Make sure that the bore of nylon bushings is clean and well greased. Remove protective paint from the front cover of bevel gearbox where bushings make contact. Attach the frame to the cutterbar using 2 self locking screws (B) (M 16 x 50) and 2 washers (A) (diameter 16,5 x
60) as shown in photo 2 and fig.2. Torque : 30 daNm / 220 ft.lbs.
Install the compensating spring rod (N) to the pin (C) using roll pin (E) (diameter 8 x 50) (photo 2).
3. Assembly of belt shield and belts
- Install the inner belt shield (D) (photo 3) in place and
secure with the 3 spacer bolts (E) taped on the stop chain. Torque to 5 daNm / 40 ft.lbs.
- Install closing plate (F) equipped with elastic nut as
shown in photo 3. On GMD 800 GII / 800 GII-HD, mount the inner closing plate (M) using an elastic nut and a self­locking screw (N) (M 8 x 12) (photo 3A).
- Install the V-belts (G) onto the pulleys (photos 3 and 3A).
- Place tensioning spring (K) inside spacer tube (J)
and install both parts over guide (L) (fig. 3).
- Slide special washer (R) onto bolt (H) and install this
bolt into guide (L) as shown in figure 3 and photo 3 A.
2
Fig. 2
3
3A
Fig. 3
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- Tension the V-belts (G) (photo 3) by tightening the bolt (H) with the 18 mm box spanner (O), delivered with the machine (photo 3 A).
- For the correct V-belt tension, tighten the bolt (H) until the spacer tube (J) is in contact with the main frame plate (E) and the washer (R), then tighten the bolt with 2 additional complete turns.
Note : The 2 turns of the bolt necessary to obtain a
correct tension, only apply to new sets of belts to compensate for the initial stretch new belts are subject to during the first couple of hours of use.
- Attach outer belt shield (X) with 3 washers and 3 cap
nuts (I) (photo 4). Torque : 5 daNm / 40 ft.lbs
- Assemble closing plate and outer belt shield with
one self-locking screw (K) (M 8 x 16) (photo 4). On GMD 800 GII / 800 GII-HD, assemble the inner closing plate and the outer belt shield with one self­locking screw (K) (M 8 x 12) (photo 4A).
4. Installing the frame pipe
- After cleaning attach frame pipe (L) (photo 5) to bevel gearbox with 4 screws (M) (M 16 x 40). (Torque : 21
daNm / 155 ft.lbs).
3B
4
4A
5
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