McConnel PT6 Operations & Parts Manual

Pasture toppers

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Publication 474
April 2005
Part No. 41570.74
Revision 16.03.06
PT6, PT8 & PT9
PASTURE TOPPERS
Standard & Offset Models
Operation & Parts Manual

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Summary of Contents for McConnel PT6

  • Page 1 Publication 474 PT6, PT8 & PT9 April 2005 Part No. 41570.74 Revision 16.03.06 PASTURE TOPPERS Standard & Offset Models Operation & Parts Manual...
  • Page 3 McCONNEL LIMITED Temeside Works Ludlow Shropshire SY8 1JL England Telephone: 01584 873131 www.mcconnel.com...
  • Page 5 We hereby certify that the machinery stipulated below complies with all the relevant provisions of the EC Machinery Directive and the National Laws and Regulations adopting this Directive. Machine Description…. Mounted In-Line Toppers Make/ Model …………….PT6, PT8 & PT9 Manufacturer: LSM Engineering LTD Address: Ballymacken, Portlaoise, Co. Laois. (IRELAND) Is in conformity with the following other Directives and Standards;...
  • Page 7: Table Of Contents

    Main Frame – PT8 & PT9 Standard Models Main Frame – PT8 Offset Model Chassis – PT8 Offset Model Blade Carrier Assembly – PT6 Model Blade Carrier Assembly – PT8 & PT9 Standard Models Blade Carrier Assembly – PT8 Offset Model...
  • Page 8: Introduction

    INTRODUCTION McCONNEL PT SERIES MOWERS - Medium Duty Pasture Toppers Although designed primarily for the ‘topping’ of agri pastures the machines may also be used for ‘topping’ sports grounds and local council areas. These machines should never be used for topping set-aside.
  • Page 9: Features

    FEATURES PT6 MODEL Three point linkage mounted. ◘ Working width of 1.8m. ◘ Cutting height from 24.2mm to 114.2mm. ◘ 540-RPM PTO Shaft drive. ◘ Shear pin protection. ◘ Single rotor. ◘ Semi-Offset cutting position. ◘ Easy height adjustment. ◘...
  • Page 10: Specifications

    SPECIFICATIONS Description PT6 Model PT8 Model PT9 Model Cutting Width 1.8m 2.5m 2.75m HP Requirement 35 HP 40 HP 45 HP Weight 290 Kg 480 Kg 509 Kg Attachment 3-Point Linkage 3-Point Linkage 3-Point Linkage Cutting Height 24.2 – 114.2mm 24.2 –...
  • Page 11: Safety Section

    SAFETY There are obvious and potential hazards in the operation of this mower. REMEMBER! This machine may often be operated in brush of up to ½” (12mm) diameter. The blades of this mower can propel objects for a great distance at very high speeds. Serious injury or even death may occur unless care is taken to ensure the safety of the operator, bystanders or passersby in the area.
  • Page 12 Ensure all moving parts of the machine are regularly inspected for wear and replaced with authorised service parts if an excessive amount of wear is present. Always use shear bolts recommended by McConnel. Ensure the machine is regularly inspected for loose fasteners, worn or broken parts and loose or leaky fittings.
  • Page 13 Never leave the machine in the raised transport position – the machine could fall inadvertently and cause injury or death to anyone who might be under the machine. Never clean or adjust PTO driven equipment with the tractor engine running. Kill the engine and pocket the key before attempting any maintenance on the machine.
  • Page 14 Ensure that a PTO shield is installed when using PTO-driven equipment and always replace the PTO shield if damaged. PROLONGED EXPOSURE TO LOUD NOISE MAY CAUSE PERMANENT HEARING LOSS ! Tractors with or without mowers attached can often be noisy enough to cause permanent or partial hearing loss.
  • Page 15: Machine Decals - Location

    WARNING 09.821.34 COMBINED EURODECAL WARNING 09.810.02 GREASE (40 HOURS) INSTRUCTION 1335246 SERIAL No. PLATE PLATE 7103230 POP RIVET PLATE FIXING 1290649 McCONNEL (SILVER) NAME/LOGO 1290654 PT8 (SILVER) NAME/LOGO 1290655 PT9 (SILVER) NAME/LOGO 1290680 PT6 (SILVER) NAME/LOGO N/A to PT6 Models...
  • Page 16: Machine Decals - Identification

    MACHINE DECALS – Identification 2. Part Number D137 1. Part Number 09.811.04 4. Part Number D132 3. Part Number D138 6. Part Number 09.821.30 5. Part Number 09.821.29 8. Part Number 09.810.02 7. Part Number 09.821.34 11. Part Number 1290649 (Silver) 12.
  • Page 17: Machine Fitting

    TRACTOR REQUIREMENTS The PT8 & PT9 mowers will attach to most tractors with Cat. II & Cat. II Quick Hitch. The machines require a tractor with 540-RPM PTO and a minimum 40HP for PT8 models and 45HP for PT9 models. Adequate front-end weights should be fitted - at least 20% of the tractor’s weight must be on the front tyres when the mower is lifted to provide adequate traction for safe steering under good conditions.
  • Page 18: Tractor Attachment

    PTO shaft. Before operating the mower, check to ensure the driveline will not ‘bottom out’ or become disengaged. ALWAYS use Shear Bolts recommended by McConnel. • Set parking brake,...
  • Page 19 • Re-attach the driveline to the PTO shaft; ensuring balls are correctly seated in the groove on shaft. • Raise mower to full transport height or until driveline just touches deck at front. If distance between coloured tape and outer shield is 1⅝” (40mm) or less, drive tubes should be shortened (see diagram below).
  • Page 20: Operation

    – refer to maintenance section for details. These mowers are designed primarily for medium duty grassland topping, PT6 models are equipped with a single set of updraft blades mounted on a rotating blade carrier – the cutting...
  • Page 21: Cutting Height

    CUTTING HEIGHT The cutting height of the mower is determined by the position at which the side skids are mounted on the machine – height adjustment is made by selecting higher or lower pairs of holes in the skids through which to attach the mounting bolts. It is advisable to increase topping height by an extra 25mm (1”) to avoid ‘grounding’...
  • Page 22: Transportation & Work Positions - Offset Model

    OFFSET MOWERS – TRANSPORTATION & WORK POSITIONS For transportation the PT8 Offset Mower must be positioned directly behind and in line with the tractor, the machine is ‘locked’ in this position with a safety pin – the mower must always be transported in this position and the safety pin must always be fitted during transportation.
  • Page 23: Starting And Stopping The Machine

    STARTING AND STOPPING THE MACHINE Power for operating the Mower is supplied from tractor PTO. Refer to your Tractor Manual for instructions regarding engaging and disengaging of the PTO. ALWAYS engage the PTO at low engine rpm and gradually build up the speed – sudden starts at high rpm can cause the Shear Bolt to shear.
  • Page 24: Machine Removal

    DETACHMENT OF THE MACHINE • Lower the Mower to the ground and park the Tractor with brakes on, kill the engine, remove and pocket the key. • Wait until the PTO has stopped rotating before dismounting the Tractor. • Disconnect the Driveline from the Tractor PTO. •...
  • Page 25: Maintenance

    MAINTENANCE Always disengage the PTO before raising the Mower for transporting or making adjustments. Do not allow excess grease to collect on or around the machines parts - particularly when operating in sandy areas. LUBRICATION POINTS The illustration below shows the location of the machines lubrication points and the frequency at which these points should be lubricated under normal working conditions –...
  • Page 26: Driveline Lubrication

    Recommended lubricants for the Gearbox are: Exxon – Spartan EP220, Mobil HD 80W90, or equivalent. Required lubricant is a SAE 90 or SAE 80W90 with EP additives for extreme pressure and temperature with a API-GI-5 Service rating. NOTE: Overfilling the Gearbox will result in pressure build up and cause Oil Seals to leak. ATTENTION: If Gearbox suddenly starts making an unusual noise, stop immediately, check for leaks, and refill Gearbox as required.
  • Page 27: Driveline Shield Removal

    DRIVELINE SHIELD REMOVAL The driveline integral shields should not become dented or otherwise damaged. The integral shield assembly has a nylon bearing at each end, which should turn freely, and will require lubricating after every 8 hours of use. To remove the integral shields for replacement or repair, turn the three nylon bolts through a ¼...
  • Page 28: Blade Sharpening

    BLADE SHARPENING Always sharpen both blades at the same time to Blade Maintenance maintain balance. Follow the original sharpening pattern (see diagram below) and always sharpen blades by grinding. DO NOT heat and ‘pound out’ edge or sharpen the blade to a razor edge, but leave a 1/16”...
  • Page 29: Troubleshooting

    TROUBLESHOOTING - General PROBLEM POSSIBLE CAUSE REMEDY NOT CUTTING CLEAN Blades dull. Sharpen or replace Blades. Blade rotation incorrect. Use correct Blade carrier. Using straight blades. Use Fan Blades in grass. Carrier rpm too low. Increase PTO to recommended rpm Mower not leveled.
  • Page 30: Pto Shaft Troubleshooting

    TROUBLESHOOTING – PTO Shafts PROBLEM POSSIBLE CAUSE REMEDY BROKEN CROSS Load too high for joint. Use protective device with joint. OR CUPS Check joint angles and phasing. Slow down or raise Mower. END GALLING OF Speed too high during Reduce PTO speed. CROSS AND CUPS turns.
  • Page 31: Gearbox Troubleshooting

    TROUBLESHOOTING – Gearboxes PROBLEM POSSIBLE CAUSE REMEDY NOISY GEARBOX Improper backlash. Refer to your Dealer. Rough Gears. Run in or change Gears. Worn Bearings Replace Bearings. OIL BLOWING OUT Flat bottomed Vent Plug Replace with proper Vent Plug, cavity VENT PLUG or shallow cavity Plug.
  • Page 33: Parts Section

    PT6, PT8 & PT9 PASTURE TOPPERS - Parts List -...
  • Page 34: Main Frame - Pt6 Model

    PT Series Pasture Toppers MAIN FRAME – PT6 REF. QTY. PART No. DESCRIPTION M6-13 1096254 D/ BOW SHACKLE M6-13B 1096266 2 TONNE STRAP M6-14 1096267 ADJUSTABLE SLIDES (SKIDS ) M6-15A 1096275 PTO SHAFT – T40 M6-15B 21238.01 CONE COVER 190-000-536...
  • Page 35: Main Frame - Pt8 & Pt9 Standard Models

    PT Series Pasture Toppers MAIN FRAME – PT8 & PT9 Std. REF. PART No. DESCRIPTION M9-4 1096250 Main Body PT8 M9-4 1096251 Main Body PT9 M9-16 1096252 Adjustable Slides M9-17 9313066 Bolt M9-18 9143006 Lock Nut M9-18A 9100106 Flat Washers M9-19 21459.01 Gearbox –...
  • Page 36: Main Frame - Pt8 Offset Model

    PT Series Pasture Toppers MAIN FRAME – PT8 Offset REF. PART No. DESCRIPTION M8MF-1 1096288 Carrier Arms M8MF-2 1096289 Carrier pin M8MF-3 1096290 Split Pin M8MF-4 1096291 Link Frame Pin M8MF-5 1096292 Safety Lock Pin M8MF-6 1096293 Linkage Frame M8MF-7 R Clip M8MF-8 9143008...
  • Page 37: Chassis - Pt8 Offset Model

    PT Series Pasture Toppers CHASSIS – PT8 Offset REF. PART No. DESCRIPTION M8CH-1 1096271 Main Frame M8CH-2 1096272 Gearbox M8CH-3 9317056 Bolt M8CH-4 9100106 Washer M8CH-5 1096279 Adjustable Slides M8CH-6 9213066 Bolt M8CH-7 9143006 Nyloc Nuts M8CH-8 1096273 Back Guard M8CH-9 1069274 Front Guard...
  • Page 38: Blade Carrier Assembly - Pt6 Model

    PT Series Pasture Toppers BLADE CARRIER – PT6 REF. QTY. PART No. DESCRIPTION M6-1 1096300 GEARBOX 205-801 M6-2 9143007 NYLOC NUT M6-4 1096301 BOLT M6-4B 9100104 FLAT WASHER M6-15B 21238.01 CONE COVER 190-000-536 M6-5 9213107 BOLT M6-6 1096302 BLADE CARRIER...
  • Page 39: Blade Carrier Assembly - Pt8 & Pt9 Standard Models

    PT Series Pasture Toppers BLADE CARRIER – PT8 & PT9 Std. M9-34 REF. PART No. DESCRIPTION M9-1 21459.02 Gearbox 805-205 M9-2 9313107 Bolt M9-3 9143007 Lock Nut M9-4 1096256 Main Body PT8 M9-4 1096257 Main Body PT9 M9-5 1096265 Blade Carrier PT8 M9-5 1096258 Blade Carrier PT9...
  • Page 40: Blade Carrier Assembly - Pt8 Offset Model

    PT Series Pasture Toppers BLADE CARRIER – PT8 Offset REF. PART No. DESCRIPTION M8CH-1 1096280 Blade Carrier M8CH-2 9143008 Lock Nut M8CH-3 1096281 Upper Blade Bushing M8CH-4 1096282 Double Edged Blade Bushing M8CH-5 1096283 Lower Blade Bushing M8CH-6 9217208 Bolt M8CH-7 1096284 Nyloc Nut...
  • Page 41: Machine Decals

    PT Series Pasture Toppers MACHINE DECALS PT8 / PT9 Standard Models Illustrated REF. QTY. PART NO. DESCRIPTION 1096710K DECAL KIT - PT6 Models 1096705 DECAL KIT - PT8 Models 1096706 DECAL KIT - PT9 Models 09.811.04 DECAL - 540 RPM PTO SPEED D137...
  • Page 44 McConnel Limited, Temeside Works, Ludlow, Shropshire SY8 1JL. England. Telephone: 01584 873131. Facsimile: 01584 876463. www.mcconnel.com...

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