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Publication 474 PT6, PT8 & PT9 April 2005 Part No. 41570.74 Revision 16.03.06 PASTURE TOPPERS Standard & Offset Models Operation & Parts Manual...
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McCONNEL LIMITED Temeside Works Ludlow Shropshire SY8 1JL England Telephone: 01584 873131 www.mcconnel.com...
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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;...
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.
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. ◘...
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 –...
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.
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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.
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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.
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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.
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.
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.
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,...
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• 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).
– 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...
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’...
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.
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.
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. •...
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 –...
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.
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...
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”...
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.
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.
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.
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