McConnel SR460 Operator's Manual
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McConnel SR460 Operator's Manual

Flexwing mower
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Publication 561 (Ed.2)
August 2021
Part No. 41571.61
FLEXWING MOWER
Operator Manual

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Summary of Contents for McConnel SR460

  • Page 1 Publication 561 (Ed.2) August 2021 Part No. 41571.61 FLEXWING MOWER Operator Manual...
  • Page 2 VERIFICATION OF WARRANTY REGISTRATION Dealer Warranty Information & Registration Verification It is imperative that the selling dealer registers this machine with McConnel Limited before delivery to the end user – failure to do so may affect the validity of the machine warranty.
  • Page 4 1500 hours. Engine warranty will be specific to the Manufacturer of that unit. 1.02. All spare parts supplied by McConnel Ltd and purchased by the end user are warranted to be free from defects in material and workmanship from the date of sale to the original purchaser for a period of 6 months.
  • Page 5 2.02. Any fault must be reported to an authorised McConnel Ltd dealer as soon as it occurs. Continued use of a machine, after a fault has occurred, can result in further component failure for which McConnel Ltd cannot be held liable.
  • Page 6 MISCELLANEOUS 4.01. McConnel Ltd may waive compliance with any of the terms of this limited warranty, but no waiver of any terms shall be deemed to be a waiver of any other term. 4.02. If any provision of this limited warranty shall violate any applicable law and is held to be unenforceable, then the invalidity of such provision shall not invalidate any other provisions herein.
  • Page 8 These trailed heavy-duty machines can be specified with various specifications of axle, wheel and blade combinations to suit the end users specific requirements. These machines are fitted with 1000 rpm as standard (540 rpm is optional on SR460) and are available with various input shaft and hitch options.

  • Page 10: Table Of Contents

    Intended Usage ......................... 1 1.1.1 Allowed Uses ....................... 1 1.1.2 Improper Uses ......................1 General Arrangement ....................... 2 1.2.1 SR460 .......................... 3 1.2.2 SR620 .......................... 4 1.2.3 SR820 .......................... 5 Machine Identification ....................... 6 Rotation Definitions & Conventions ..................7 Machine Specification .......................
  • Page 11 4.11.5 Crossing Ditches & Steep Inclines ................63 4.11.6 Un-level Ground ......................64 4.12 Road Transporting the Machine ..................... 64 4.12.1 Transport Width Adjustment (SR460 only) ............... 65 4.12.2 Marker Boards (SR460 only) ..................65 4.13 Transporting the Machine on a Trailer ..................66 Maintenance ............................
  • Page 12 5.9.1 Nuts & Bolts ......................106 5.9.2 Hydraulic Fittings ..................... 107 5.10 Machine Inspection Record ....................108 5.11 Machine Storage ........................110 5.11.1 Preparing the Machine for Storage ................. 110 5.11.2 Returning the Machine Back to Work ..............111 Troubleshooting ..........................112...

  • Page 14: Machine Description

    The SR460/620/820 flexwing group of rotary mowers are designed for use on level, undulating or inclined ground and for a duty cycle of 1000 hours per annum. They will cut vegetation up to 100mm/4” thickness. They can be mounted to agricultural tractors with a minimum of 70hp (SR460), 90hp (SR620) and 150hp (SR820).

  • Page 15: General Arrangement

    The layout and naming convention used throughout this manual for each of the machines are shown in the table below. The numbering and positioning of the relevant item can be found for the particular machine in Section 1.2.1 for the SR460, Section, Section 1.2.2 for the SR620 and Section 1.2.3 for the SR820. Item No.

  • Page 16: Sr460

    1.2.1 SR460 Figure 1.2 – SR460 General Arrangement...

  • Page 17: Sr620

    1.2.2 SR620 Figure 1.4 – SR620 General Arrangement...

  • Page 18: Sr820

    1.2.3 SR820 Figure 1.5 – SR820 General Arrangement...

  • Page 19: Machine Identification

    By utilising a smart phone and scanning the Authorised Representative QR scan code found on the right-hand side of the serial plate (ref 8, Figure 1.6) using a suitable QR scanning App, you can find details for McConnel Machinery authorised representatives for its various territories.

  • Page 20: Rotation Definitions & Conventions

    SR460/620/820 machines have anti-clockwise and clockwise rotating rotors which are in turn fitted with left-hand (LH) and right-hand (RH) blades. The rotation direction of each of the rotors is stated in Figure 1.8 for the SR460 and Figure 1.9 for the SR620/820.

  • Page 21: Machine Specification

    Table 1.2 – SR460/620/820 Standard Specification Notes: McConnel constantly reviews and improves product designs and reserve the right to change this information. Actual machines may vary from the above specification. Contact your McConnel Sales representative if you have any queries.
  • Page 22 Figure 1.11 Working Dimensions NOTE: These illustrations for working and transport dimensions are illustrated by a SR460 for visual purposes only. Figure 1.12 Transport dimensions...

  • Page 23: Machine Options

    1.5.2 Machine Options SR460/620/820 machines can be ordered in a variety of different specifications to fit the particular user’s requirements. Option Picture 1.5.2.1 Gearbox 540 RPM 1000 RPM Only available on SR460 Option Picture 1.5.2.2 Input PTO Shaft 6 Spline...
  • Page 24 Option Picture 1.5.2.5 Centre Axle Standard Walking SR460 only Standard on SR620/820 Option Picture 1.5.2.6 SR460 SR620 SR820 Wheels/Tyres Standard Standard Standard Optional Forklift Truck Wide Forklift Implement Tyre Forklift Truck Aramide Tyre Truck Tyre Tyre Implement Tyre Option Picture 1.5.2.7 Hydragas Suspension...

  • Page 25: Safety

    - even severe - to people or animals. McConnel declines all responsibility for damage caused by not complying with the safety and injury prevention regulations described below. McConnel also declines any responsibility for damage caused by improper use of the machine and/or as a result of modifications made without prior authorisation by the manufacturer.

  • Page 26: Safe Use

    Safety is of upmost importance to the manufacturer and should be of the same level of importance for the operator/owner. McConnel machines have been designed to ensure the greatest level of protection to operating personnel and bystanders. However, in practice implementing the safety as guided in this operator manual is up to you.
  • Page 27 2.3.3.13 IMPORTANT: Using the types of lubricating oils indicated by McConnel and follow the recommended guidelines of the lubricant manufacturer. Check oil levels and grease points daily to ensure the longevity of your components on your machine following the maintenance section of this operators manual.
  • Page 28 2.3.3.25 IMPORTANT: It is mandatory to use the type of PTO shaft supplied with the machine by McConnel and for the same type to be sourced again when a replacement is required. 2.3.3.26 IMPORTANT: Ensure that before first use and modification of size e.t.c., the PTO shaft is the...

  • Page 29: Work Site Preparation

    2.3.3.35 DANGER! It is forbidden to alter, tamper with or bypass any of the components on the machine including the safety devices provided by the manufacturer. e.g. guarding McConnel claims no responsibility to damages to operators, personnel or property by the factory fitted guards being not fitted or in poor repair.

  • Page 30: Machine At Work & Observation

    2.3.4.5 WARNING! Keep all raised wings at 3 metres (10 ft) or greater distance from all power lines and overhead obstructions. 2.3.4.6 WARNING! If working in overgrown or high grass inspect for, remove or mark potential hazards, mow at an intermediate height. Then repeat the process of inspection and hazard prevention and mow then at the required finished height.
  • Page 31 2.3.5.23 IMPORTANT: Stop and do not use the machine when there is vibration in the machine, as this may cause breakage and extended serious damage. Find the cause of the vibration or have it inspected by your local McConnel dealer and do not use the machine until the cause is identified and eliminated.

  • Page 32: Transporting The Machine

    2.3.6 Transporting The Machine 2.3.6.1 WARNING! Ensure that the rotors have completely stopped before folding the machine between working and transport position. 2.3.6.2 WARNING! Check that the levers/buttons which operate the hydraulic lift are locked into position, to avoid the machine lowering during transport. 2.3.6.3 WARNING! Never operate the machine with the rotor moving in raised or folded transport position, even for short distances.

  • Page 33: Machine Storage

    2.3.6.15 IMPORTANT: Before proceeding to take the machine onto the public highway ensure that the drawbar safety chain is in position between the machine and tractor. 2.3.6.16 IMPORTANT: Ensure the tractor is fitted with flashing warning beacons and they are switched on, if required.

  • Page 34: Safe Maintenance

    2.4.1.5 IMPORTANT: Always use genuine McConnel parts when carrying out repairs and maintenance with thoughts to longevity and reliability of the machine and personnel safety. 2.4.1.6 IMPORTANT: Store the machine in a safe place which is protected from the elements, when the work is completed to ensure its wellbeing and protection from damage to components.
  • Page 35 2.4.1.14 DANGER! Do not weld or repair rotating mower components such as blade carriers and blades. They may cause vibrations and component failures being thrown from the machine. 2.4.1.15 DANGER! Replace bent, damaged, cracked or broken blades immediately with new blades. Do not attempt to straighten, weld or weld hard-facing blades to avoid blade failures and throw broken blades from the machine.
  • Page 36 Ensure that when the machine inspection is carried out that the machine is stationary and not running. Where parts are broken, damaged and deemed not fit for use; replace with genuine McConnel parts using the online Interactive Parts facility at: https://my.mcconnel.com/parts/public-interactive-parts-database/...

  • Page 37: Safety & Operational Decals

    Safety & Operational Decals SR460/620/820 machines are equipped with safety and operational decals warning about residual risks present on the machines that were not possible to eliminate. Some give guidance in how to best operate and care for the machine. Safety decals are yellow in colour and placed in strategic positions around each of the respective dangers.
  • Page 38 Figure 2.2 – Other Safety & Instruction Decals Instruction: - Grease every 8 Placed and pointed towards components of the machine which should be hours greased at least once every 8 hours Instruction: - Designated lifting Placed at positions on machine where safe lifting should be carried out point *NOTE* SR820 machines are not to be lifted Instruction: - Clutch setting...

  • Page 39: Placement

    Section 2.5.2.1 to 2.5.2.3 state the particular positions safety and instruction decals are placed on each of the machine models. 2.5.2.1 SR460 Figure 2.3 – SR460 Safety & Instructional Decal Placement 2.5.2.2 SR620 Figure 2.4 – SR620 Safety & Instructional Decal Placement 2.5.2.3 SR820...

  • Page 40: Replacement

    McConnel disclaim all responsibility for any damage or injury arising as a result of guards or protection chains being removed, or of guards other than of McConnel manufacture having been fitted, or of operation of the machine other than in accordance with these instructions.

  • Page 41: Sound

    97dB 83dB SR820 100dB 85dB Table 2.4 – SR460/620/820 Sound Readings Personal Protective Equipment Operators should be wearing sufficient personal protection equipment (PPE) to protect them from hearing, respiratory and impact damages. When working in an unsealed cab or where windows and apertures...

  • Page 42: Disposal

    In most instances McConnel machines can be broken into its constituent parts with the use of basic workshop equipment. Table contains a typical list of constituent materials, together with disposal guidelines.

  • Page 43: Proposition 65

    2.10 Proposition 65 Figure 2.7 – P65 Cancer and Reproductive Harm Decal Operating, servicing and maintaining this equipment can expose you to chemicals including gasoline, diesel fuel, lubricants, petroleum products, engine exhaust, carbon monoxide, and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm.

  • Page 44: Machine Preparation

    WARNING! Do not lift by drawbar or axle alone. Damage may occur which will invalidate warranty. Use recommended lifting point locations. SR460 and 620 models should be lifted using the four designated lifting loops in each of the four corners of the centre deck; as shown in Figure 3.1.

  • Page 45: Post-Delivery/First Use Inspection

    McConnel machines are tested after manufacture. It is important to assess the machine to ensure that it is of the correct specification ordered from McConnel or local McConnel dealer. Information with regards to the specification of the machine can be found on the machines serial plate.

  • Page 46: Pto Shaft

    PTO Shaft 3.3.1 PTO Setup & Adjustment (first use) Equipment Required  Tape Measure  Marker Pen The PTO of your machine will be delivered as it left the manufacturer, so will require to be shortened to give the correct effective length between the machine and the power take-off of the tractor.

  • Page 47: Engagement Test

    Bondioli & Pavesi and McConnel declines all responsibility for damage and/or injury caused by modifying ANY of the power take-off shafts on SR460/620/820 machines in any other way than described in this manual. If you are unsure of the procedure, or need additional assistance, please contact your local McConnel dealer, qualified service centre or McConnel.
  • Page 48 Proceed as follows to shorten the input PTO shaft: 3.3.4.1 Remove shielding. Figure 3.6 3.3.4.2 Shorten drive tubes by the required length. In normal conditions, telescopic tubes must always overlap by at least a ½ of their length. During manoeuvres, when the driveline is not rotating, the telescopic tubes must have a suitable overlap to maintain the tubes aligned and allow them to slide properly.

  • Page 49: Fitting The Pto Shaft

    3.3.4.5 Grease the internal drive tube. Reassemble the shield on the driveshaft. NOTE: SFT drivelines with 4-tooth profiles must be reinstalled in such a way that the grease fittings on the cross kit bearings are aligned. Figure 3.10 3.3.4.6 Check the length of the driveshaft at the minimum and maximum positions of the machine.

  • Page 50: Usage Instruction

    Section 2.5.2. The connecting tractor will also have them as well with information given in the tractor operator’s manual. If any part of the operation safe use of the machine is not completely understood, consult a local McConnel dealer or McConnel for complete explanation.

  • Page 51: Tractor Requirements

    (PTO) at the machines rated speed (540 or 1000 rpm) while travelling at a working ground speed for the conditions and quantity of material of the work site. Operating the machine with a tractor which does not meet the requirements set by McConnel may cause the tractor and/or machine damage, potentially risking danger to the operator and bystanders.
  • Page 52 For guidance as to the layout of the hydraulic hoses, see the full hydraulic hosing diagrams found in Section 5.6.5. It is important to state that SR460/620/820 wing rams are not independent and not able to be controlled independently.

  • Page 53: Hitching & Unhitching The Machine

    To adjust the machine to the correct height: 4.4.2.1 On SR460 and SR620 machines, turn the handle on the jack to bring the tractor clevis and machine towing eye to the correct height; see Figure 4.5.
  • Page 54 4.4.2.7 Install the towing pin and retaining lynch pin. 4.4.2.8 Fit the drawbar retention chain; see Section 4.4.3. 4.4.2.9 On SR460/620 machines proceed to fit the hydraulic hoses. SR460/620 SR820 Figure 4.5 Figure 4.6...
  • Page 55 These can be found on the SR460/620 models attached on the rear of both of the light boards, see Figure 3.2 On the SR820 model they can be found on the tops of the centre axle; see Figure 3.3.

  • Page 56: Safety Towing Chain

    4.4.2.11 For tractors fitted with a fixed pick-up hitch, on SR460/620 machines remove the jack from the centre deck of the machine and place it on the drawbar with the supplied pins; see Figure 4.5. Adjust the height of the jack using the handle to eventually raise the machine and relieve the weight of the machine off the tractor hitch.

  • Page 57: Pto Shaft

    PTO adaptors also increase the exposed working length increasing the probability of entanglement with external objects. If the shaft is incorrect for the tractor; contact your local McConnel dealer for assistance.
  • Page 58 Fitting - Machine End Equipment Required  Torque wrench (see required settings in Torque Settings section)  22mm hex socket  NLGI #2 Molybdenum Disulphide grease with paint brush/distributor Proceed as follows: 4.5.1.1 Proceed to remove the taper pin, flat washer and nut from the machine end of the input PTO shaft. See Figure 4.11.

  • Page 59: Pto Shaft Specifications

    Molybdenum Disulphide) onto the splines at each end to aid later refitting to the tractor. 4.5.2 PTO Shaft Specifications SR460/620/820 machines are primarily sold to operate at 1000 rpm, although the SR460 can be ordered and specified to operate at 540 rpm.

  • Page 60: Unfolding & Folding The Machine

    SR460 machines feature a 2 plate slip clutch on each of the rotor gearboxes with an overrun on the input shaft. SR620 and SR820 machines feature a combination of 2 and 4 plate slip clutches on each of the rotor gearboxes with an overrun on the input shaft.

  • Page 61: Setting Up The Machine

    4.6.1.5 On SR460 machines fit the 2 wing locking pins; see Figure 4.16. On SR620 machines fit the 2 wing locking pins and ratchet securing strap; see Figures 4.16 and 4.17.

  • Page 62: Front To Rear

    Figure 4.19. As a safe precaution, set the cutting height slightly higher on set-up to cater for this sinking. Assess the working area after and then adjust again if required. Figure 4.19 – SR460/620 Front to Rear Machine Levelling (SR460 model shown)

  • Page 63: Wings

    Figure 4.20 – SR460/620 Front to Rear Machine Levelling (SR460 model shown) Figure 4.21 – Tie Bar Adjustment Figure 4.22 – Tyre Sinking (SR460 model shown) 4.7.2 Wings Levelling the wings left to right is most critical with low cutting heights (75mm and below). Machines roll in work due to ground contours, soft ground supporting the wings and suspension give.
  • Page 64 Figure 4.23 – Wing Height Adjustment SR460/620 SR460/620 machine wings are adjusted by the axle links and can be adjusted in large amounts via the coarse adjustment and in smaller amounts via the fine adjustment. Coarse adjustment should be rarely required.
  • Page 65 IMPORTANT: Adjust both wings by the same amount to ensure a level cut. COARSE ADJUSTMENT FINE ADJUSTMENT Figure 4.24 – SR460/620 Coarse & Fine Wing Adjustment SR820 With reference to Figure 4.25 to adjust the wings: 4.7.2.10 Release the locking star nut (A).
  • Page 66 Figure 4.25 – SR820 Wing Adjustment...

  • Page 67: Setting Cutting Height

    The machine is perfectly manufactured and there is no tolerance variation in components Due to this McConnel shows the data below as a reference holding no responsibility for the machine not achieving the exact quantities given in the table below. It is important for the operator to try out the machine at the work site with the expectation that they will need to adjust the machine after to get exactly what they require to fit the working conditions.
  • Page 68 Please note that not all settings can be achieved on SR620 machines. This is due to the deck design axle and/or wheel assembly clashing with the wing fabrication, putting potential extreme levels of stress of the machines axle links. Figure 4.27 – SR460/620 Cutting Height Adjustment Cutting Height mm (inches) Link Bar (C)

  • Page 69: Sr820

    The machine is perfectly manufactured and there is no tolerance variation in components Due to this McConnel shows the data below as a reference holding no responsibility for the machine not achieving the exact quantities given in the table below. It is important for the operator to try out the machine at the work site with the expectation that they will need to adjust the machine after to get exactly what they require to fit the working conditions.

  • Page 70: Work Site Assessment

    Tyre Option Distance (d) Implement (Standard & Forklift Truck (see Figure 4.28) Aramide) 30mm (1 3/16”) 25mm (1”) 40mm (1 9/16”) 35mm (1 3/8”) 70mm (2 ¾”) 50mm (2”) 85mm (3 3/8”) 120mm (4 ¾”) 60mm (2 3/8”) 130mm (5 1/8”) 165mm (6 ½”) 70mm (2 ¾”) 175mm (6 7/8”)

  • Page 71: Stopping The Machine In An Emergency

    WARNING! Extreme care should be taken when operating near loose objects such as gravel, rocks, wire, and other debris. Inspect the area before mowing. Foreign objects should be removed from the site to prevent machine damage and/or bodily injury or even death. Any objects that cannot be removed must be clearly marked and carefully avoided by the operator.

  • Page 72: Weather

    4.9.4 Weather Mow only in conditions where you have clear visibility in daylight or with adequate artificial lighting. Never mow in darkness or foggy conditions where you cannot clearly see at least 90m (300 feet) in front and to the sides of the tractor and mower.
  • Page 73 4.10.1.13 It is of upmost importance that safety decals are kept clean and replaced if they are no longer legible, damaged or lost completely. Safety decals can be purchased readily from a local McConnel dealer.

  • Page 74: Using The Machine

    4.11 Using The Machine 4.11.1 Engaging The Power Take-off (PTO) Only operate the machine from the tractor operator’s seat with the seatbelt securely fastened. The tractor must be equipped with a ROPS cab. WARNING! Do not let the blades turn when the decks are raised for any reason; including clearance or for turning.

  • Page 75: Forward & Power Take-Off Speed

    McConnel flex wing machines are designed to cut vegetation up to 100mm (4”) diameter. Sharp blades will produce a cleaner cut and require less power. Travel at a speed that allows the mower sufficient time to cut through the vegetation and maintain the PTO operating speed to prevent overloading the mower and tractor.

  • Page 76: Crossing Ditches & Steep Inclines

    Determine the safe speed to maintain proper control of the tractor when making turns. When turning with a towed implement, the overall working length of the unit is increased. Allow additional clearance for the mower when turning. To avoid overturns, drive the tractor with care and at safe speeds, especially when operating over rough ground, crossing ditches or slopes, and turning corners.

  • Page 77: Un-Level Ground

    Figure 4.38 – Follow Safe Driving Practices IMPORTANT: Before proceeding to take the SR460 (standard version only), rotate the marker boards out so that the marker boards are the widest point on the machine; see Section 4.12.2.

  • Page 78: Transport Width Adjustment (Sr460 Only)

    4.12.2 Marker Boards (SR460 only) Before proceeding to take the SR460, rotate the marker boards out so that the marker boards are the widest point on the machine.

  • Page 79: Transporting The Machine On A Trailer

    4.13 Transporting the Machine on a Trailer Figure 4.41 – Transporting Machine on a Trailer Before transporting a machine (potentially plus tractor), measure the height and width dimensions and gross weight of the complete loaded unit. Ensure that the load is in compliance with the legal limits set for the areas that will be travelled through during transit.

  • Page 80: Maintenance

    5.1.1.1 Inspect for loose or missing fasteners, worn or broken parts, leaky or loose fittings, worn bushes and any other moving parts which are worn or missing. 5.1.1.2 Replace any worn or broken parts with genuine McConnel parts under the guidance of the specific section stated in Section 5.
  • Page 81 Oil changes are recommended on SR460/620/820 machines after the first 50 hours, and then every 500 hours thereafter. To drain the oil, each of the gearboxes is fitted with a drain plug. With reference to Figures 5.2 (2) and 5.3 (2), the locations of these drain plugs can vary.
  • Page 82 5.2.1.1 Splitter Gearbox Figure 5.2 – Splitter Gearbox (Guard does not require removal) Description. Dipstick Drain Plug Upper Fill Mark Lower Fill Mark Table 5.2 – Splitter Gearbox Components 5.2.1.2 Rotor Gearboxes Figure 5.2 – Rotor Gearboxes Description. Dipstick Drain Plug Upper Fill Mark Lower Fill Mark Table 5.3 –...

  • Page 83: Pto Shaft

    5.2.2 PTO Shaft Equipment Required  Manually operated grease gun supplying NLGI #2 Molybdenum Disulphide Grease to M6/M8 grease nipples IMPORTANT: Proper and correct frequency of lubrication of all the rotating and sliding parts of the various PTO shafts fitted to the machine is essential for the correct function, longevity and reliability of the shaft. Insufficient lubrication or contamination is one of the most frequent causes of PTO shafts.
  • Page 84 (S) – Shield (80°) - 80° (50°) – (50°) (Shaft Size) Bearings CV Joint CV Joint 540 (S8) SR460 1000 (S6) SR620 1000 (S8) SR820 1000 (SH) Table 5.5 – Input Shaft Grease Quantities Centre Coupling (2) Figure 5.6 – Centre Coupling Grease Location...
  • Page 85 Refer to Figure 5.7 for reference to grease points Quantity of Pumps Model PTO Input Speed (C) - Cross (S) – Shield (T) – Telescopic (Shaft Size) Bearings Members SR460 540/1000 (S6) SR620 1000 (S6) SR820 1000 (S6) Table 5.8 – Outer Wing Shaft Grease Quantities...

  • Page 86: General Machine Greasing Point Locations

    5.2.3 General Machine Greasing Point Locations Figure 5.8 – Grease Point Locations See Section 5.2.4 for reference to the routine greasing schedule for each of the relevant locations on each of the models.

  • Page 87: Greasing Schedule

    Section 3.3.4. For fitting the input PTO shaft between the machine and the tractor; see Section 4.5. 5.3.2 Greasing For the greasing requirements on all SR460/620/820 input, wing and centre coupling shafts, refer to Section 5.2.2.

  • Page 88: Input Pto Shaft - Bearing Ring Replacement

    5.3.3 Input PTO shaft - Bearing Ring Replacement Plastic wear bearing rings are found inside the PTO assembly to give a replaceable wearing surface between the metal PTO shaft and the outer plastic safety shield/cone. Due to the parts design aim, the wear rings inside the PTO assembly will be required to be replaced over the working life of the PTO shaft to ensure that the outer plastic safety shield/cone does not wear through and expose the rotating PTO shaft found inside.
  • Page 89 5.3.3.3 Remove the base cone and the shield tube Figure 5.12 5.3.3.4 Remove the CV cone Figure 5.13 5.3.3.5 Disengage the retaining spring, leaving it inserted in one of the two holes of the bearing ring to avoid losing it Figure 5.14 5.3.3.6 Spread the bearing rings and remove from their groove...
  • Page 90 Input PTO shaft - Bearing Ring Replacement – REASSEMBLY Equipment Required  Phillips head screwdriver  Flat head screwdriver  NLGI #2 Molybdenum Disulphide grease with paint brush/distributor 5.3.3.7 Grease the bearing grooves. Fit the bearing ring into the yoke groove with the grease fitting facing the drive tube Figure 5.16 5.3.3.8 Install the bearing ring on the CV body with...
  • Page 91 5.3.3.12 Ensure that the radial holes of the CV cone are aligned with the holes on the reference pins of the bearing ring Figure 5.21 5.3.3.13 For 50° CV joints only, ensure that the radial holes of the shield strip are aligned with the holes on the reference pins of the bearing ring and that the access hole on the CV cone is aligned with the grease...

  • Page 92: Wing Pto Shaft - Bearing Ring Replacement

    5.3.4 Wing PTO shaft - Bearing Ring Replacement Plastic wear bearing rings are found inside the PTO assembly to give a replaceable wearing surface between the metal PTO shaft and the outer plastic safety shield/cone. Due to the parts design aim, the wear rings inside the PTO assembly will be required to be replaced over the working life of the PTO shaft to ensure that the outer plastic safety shield/cone doesn’t wear through and expose the rotating PTO shaft found inside.
  • Page 93 Reassembly Equipment Required  Phillips head screwdriver  Flat head screwdriver  NLGI #2 Molybdenum Disulphide grease with paint brush/distributor 5.3.4.4 Grease the bearing groove on inner yokes Figure 5.31 5.3.4.5 Fit the bearing ring into the yoke groove with the grease fitting facing the drive tube Figure 5.32 5.3.4.6 Install the outer cone, inserting the grease...

  • Page 94: Slip Clutch

    To prevent gearbox damage all rotors are protected by slip clutches fitted to each of the drive shafts. FV friction slip clutches are found on the SR460/620/820 machine range, equipped with special Belleville springs designed to apply pressure that varies with the amount of compression.
  • Page 95 5.4.1.4 Verify the efficiency of all the parts of the slip clutch. Replace worn or damaged components with genuine McConnel parts NOTE: Clutch linings ‘as new’ thickness is 3.2mm. Replace the clutch linings when the thickness is reduced to 2.5mm.
  • Page 96 Reassembly The following section refers to the reassembly operations of a slip clutch. This procedure can be carried out in the same fashion for either of the slip clutches shown in the Disassembly section. Equipment Required  Digital Vernier caliper/micrometre ...

  • Page 97: Freeing Seized Clutch Plates

    McConnel declines all responsibility for damage to implement, driveline or tractor caused by modifying any of the slip clutch settings on SR460/620/820 machines in any other way than described in this manual. If you are unsure of the procedure, or need additional assistance, please contact your local McConnel dealer, qualified service centre or McConnel.

  • Page 98: Clutch Settings

    “Standard” set-up and the other is for a machine with a six blade per rotor set-up or “Starcut” blade option as it is better known. Figure 5.46 – Clutch Setting Dimension Guidance SR460 Clutch Settings Qty Plates/Size Clutch Setting (h)*...

  • Page 99: Blades & Anti-Scalp Dishes

    Failure to replace such abnormally damaged blades may lead to catastrophic failure of the blade and ejection of the broken part with tremendous force which may cause bodily injury or death. See the below table for some visual indications of worn blades; the standard SR460/620/820 type and optional Starcut blades.
  • Page 100 Substitute blades may not meet specifications and may fail in a hazardous manner that could cause injury. McConnel declines all responsibility for damage and/or injury caused by use of anything other than the blade carriers/blades which are supplied with the machine as new or sold as a spare part replacement sold by a genuine McConnel parts dealer on SR460/620/820 rotary machines.

  • Page 101: Blade Sharpening & Straightening

    5.5.3 Blade Sharpening & Straightening McConnel does not recommend sharpening worn blades. It is important that all the blades on a rotor, are of the same weight and length and are all present to ensure the rotor remains balanced. By sharpening blades there is a chance of them overheating, which will affect the hardness of the blades;...

  • Page 102: Blade Bolt Inspection

    2770464 Table 5.18 H* - To be placed under the head of the bolt (F) Starcut Blade Quantities (if fitted) NOTE: Brand new machines (excluding standard SR460), come with bolts and nuts to fit Starcut blades. Quantity Required Blade SR460...

  • Page 103: Anti-Scalp Dish Inspection

    If any of these visual damages are found, replace all blade bolts, nuts and bushes on that rotor immediately. IMPORTANT: Always replace blade bolts, nuts and bushes with new components whenever the machine blades are removed and/or replaced. WARNING! Inspect the area before mowing. Foreign objects should be removed from the site prior to beginning work to prevent machine damage and/or operator, bystander or the environment.

  • Page 104: Anti-Scalp Dish, Blade & Blade Carrier Removal & Replacement

    Section 5.5.2 with regards to handling blade carrier assemblies safely. Throughout this section, the process is shown on a SR460 left-hand wing assembly. This same process is applicable to all blade carrier assemblies on SR460/620/820 machines. (Visual guidance references may vary).
  • Page 105 Anti-scalp Dish, Blade & Blade Carrier Removal Equipment Required  Torque wrench (see required settings in Torque Settings section)  36mm hex sockets/spanner  36mm hex spanner  55mm hex spanner  Needle nose pliers 5.5.7.1 Ensuring that the blades and blade carrier are in their “dropped”...
  • Page 106 5.5.7.4 Remove the split pin and untighten the castle nut and free the lower blade carrier off the splined shaft. Figure 5.55 5.5.7.5 Inspect the underside of the gearbox and the gearbox seal protector for damage and ingressed debris. Figure 5.56 Anti-scalp Dish, Blade &...

  • Page 107: Hydraulic Components

    Substitute components may not meet specifications and may fail in a hazardous manner that could cause injury. McConnel declines all responsibility for damage and/or injury caused by use of anything other than the genuine McConnel parts on SR460/620/820 rotary machines.

  • Page 108: Ram Inspection

    Replace the component at fault if in any doubt before proceeding to use the machine. Hydraulic ram seal spares kits are available. Where parts are broken, damaged and deemed not fit for use; replace with genuine McConnel parts using the online Interactive Parts facility at: https://my.mcconnel.com/parts/public-interactive-parts-database/...
  • Page 109 Figure 5.61. If no movement can be made; the system may still be under pressure. SR460/620 DANGER! Do not allow anyone or any part of your body to be underneath the implement wing.
  • Page 110 5.6.2.20 If the wing is to remain in the raised position attach the wing transport lock; see Figure 4.16 (SR460/620) and Figure 4.17 (SR820). 5.6.2.21 If the machine is planned to be used straight after, inspect the machine to ensure that it will achieve a...

  • Page 111: Centre Axle Lift Ram Replacement

    5.6.3 Centre Axle Lift Ram Replacement Equipment Required  See Section 5.6 5.6.3.1 Clear the area of all personnel before lowering the wings; see Figure 5.64. 5.6.3.2 From the tractor seat with your belt fastened, lower the machine wings to the ground following the guidance given in Section 4.2.
  • Page 112 5.6.3.9 Lock the positioning of the axle by the means of using the height stop to double enforce the supported machine as shown in Figure 5.68. On SR460/620 machines, raise the machine to a position which aligns the hole and fit the pin and lynch pin; see Figure 5.68.

  • Page 113: Hoses

    5.6.3.13 Measure the distance between the cylinder pin holes and extend the new cylinder to that length. SR460/620 5.6.3.14 Install the cylinder in place and install both cylinder pins and retaining bolts in place. SR820 Figure 5.70...

  • Page 114: Machine Hose Diagrams

    CAUTION! Do not use the machine if the tractor hydraulic oil temperature exceeds 93° (200°F). 5.6.5 Machine Hose Diagrams SR460/620 Figure 5.71 – SR460/620 Hose Diagram...
  • Page 115 SR 820 Figure 5.72 – SR820 Hose Diagram...

  • Page 116: Wheels, Hubs & Tyres

    When installing any of the various wheel options ensure that the flat of the wheel face is against the hub face; see Figure 5.73. Figure 5.73 – SR460/620/820 Wheel & Wheel Nut Orientation When making reference to the “split” wheel options shown in Section 1.5.2.6; namely the: ...

  • Page 117: Tyre Pressures

    Manually operated grease gun supplying NLGI #2 Molybdenum Disulphide Grease to M6/M8 grease nipples McConnel SR460/620/820 wheel hubs feature grease nipples which need to be greased at least once a week (dependant on amount of machine use). They are found on all hubs shown in the position on Figure 5.75.

  • Page 118: Other Key Components

    Figure 5.77 – SR460/620/820 Wing Skid McConnel machine skids are fitted to protect the machine deck fabrications from permanent damage. Premature wear can be caused to the skids through the machine being set too low, allowing the skids to drag along the ground causing an earlier requirement for replacement.

  • Page 119: Torque Settings

    Table 5.21 – SR460/620/820 Specific Fastener Torque Settings Non-specific Fastener Requirements The below tables give reference to the maximum recommended tightening torques for standard zinc plated finished bolts on McConnel machines. These settings can be applied to hex, socket countersunk and socket button screws. Grade Size 10.9...

  • Page 120: Hydraulic Fittings

    SR460/620/820 machines. NOTE: Inspect the hose for the type of fitting on the specific end to tighten. SR460/620/820 machines feature ¼” hoses with 3/8” end fittings for example. In this case a 3/8” torque setting would be required.

  • Page 121: Machine Inspection Record

    5.10 Machine Inspection Record Select Pre-delivery inspection: MACHINE INSPECTION McCONNEL Select RECORD Installation inspection: (For SR460/620/820) Select Daily pre-work inspection: Model: Serial No: Inspector name (print): Inspection date: Company/Position: Inspector signature: Visual Checks Comments Check that an operator’s instruction manual in the correct language for the working territory is in the machine document holder.
  • Page 122 McConnel claims no responsibility to any machine and/or physical harm caused by anything other than the practice guidelines stated in its specific machine model operators manual.

  • Page 123: Machine Storage

    Figure 5.78 – Prepare for Storage Where parts are broken, damaged and deemed not fit for use; replace with genuine McConnel parts using the online Interactive Parts facility at: https://my.mcconnel.com/parts/public-interactive-parts-database/...

  • Page 124: Returning The Machine Back To Work

    So as not to invalidate the warranty and to avoid problem, use only genuine McConnel parts and make sure the machine is not driven at a speed in excess of 540/1000 rpm on the PTO.

  • Page 125: Troubleshooting

    Gearbox a) Lack of oil Fill to level mark on gearbox noise b) Worn gears Replace gears with genuine McConnel part c) Worn bearings Replace bearings with genuine McConnel part Vibration! a) Lost/broken blades (see Replace all blades on that rotor 6.5)
  • Page 126 Damage to a) Seized slip clutch Free slip clutch by following the guidance in Section PTO shaft 5.4.2 and reset clutch settings to the correct setting following Section 5.4.3 b) PTO shaft telescopic Shorten the telescopic following the guidance in guard bottoming out Section 3.3.4 c) Engaged PTO drive with...
  • Page 128 McConnel Limited, Temeside Works, Ludlow, Shropshire SY8 1JL. England. Telephone: 01584 873131. Facsimile: 01584 876463. www.mcconnel.com...

This manual is also suitable for:

Sr620Sr820

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