Spearhead Multi-Cut 420 Handbook

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Spearhead Multi-Cut 420

Spearhead

Multi-Cut 420

Handbook

Edition – April 2007

Please ensure that this manual is handed to the operator before using the

machine for the first time. The operator must fully understand the contents

of this manual before using this machine.

(If the machine is resold the Manual must be given to the new owner.)

Important Note

The information contained in this manual is correct at the time of publication.

However, in the course of constant development, changes in specification are

inevitable. Should you find the information given in this book different to the

machine it relates to please contact the "After Sales Department" for advice.

Spearhead Machinery

Green View

Salford Priors

Evesham

Worcestershire

WR11 8SW

Tel: 01789 491860

Fax: 01789 778683

www.spearheadmachinery.com

enquiries@spearheadmachinery.com

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Summary of Contents for Spearhead Multi-Cut 420

Page 1 Should you find the information given in this book different to the machine it relates to please contact the “After Sales Department” for advice. Spearhead Machinery Green View Salford Priors Evesham Worcestershire WR11 8SW Tel: 01789 491860 Fax: 01789 778683 www.spearheadmachinery.com enquiries@spearheadmachinery.com © Spearhead Machinery Limited 2007...
Page 2 Spearhead Multi-Cut 420 EC Declaration of Conformity, Conforming to EEC Directive 89/392/EEC, 98/37/EC & 98/38/EC We, Spearhead Machinery Ltd, Green View, Salford Priors, Evesham, Worcestershire, WR11 8SW declare under our sole responsibility that the : Product …………………………………………………………… Product Code ……………………………………………………………...
Page 3: Table Of Contents
Spearhead Multi-Cut 420 Contents Contents Safety Recommendations Introduction Tractor Requirements Attaching to the Tractor Setting up your Machine Operation Transportation Machine protection Servicing & Maintenance Safety First Daily Every 8 Hours Torque Settings Regularly Blades Slip Clutch Settings Skids Wheels...
Page 4: Safety
Spearhead Multi-Cut 420 Safety Warning Warning Avoid fluid escaping Shut off engine and remove under pressure. Consult key before performing technical manual for maintenance or repair work. services procedures Warning Warning Danger – flying objects Check all nuts are tight keep safe distance from every 8 hours.
Page 5: Recommendations
Spearhead Multi-Cut 420 Recommendations Beware of the following Potential Dangers associated with the use of this machine:  Becoming trapped when hitching or unhitching  Machine overbalancing when wing is raised.  Getting caught on rotating power take off (PTO) ...
Page 6 Spearhead Multi-Cut 420  Disengage the machine, stop the engine and remove the key before leaving the tractor cab for any reason  Clean up any debris left at the work site.  Ensure that when you remove the machine from the tractor it is secured in a safe position using the stands provided, on level concrete base.
Page 7: Introduction
Spearhead Multi-Cut 420 Introduction The Spearhead 420 is a heavy-duty rotary mower for a set-aside, stubble and pasture topping. By carefully following the instructions in this handbook, the 420 will give many years of trouble free operation. Safety First Never start using the machine until the handbook has been read and understood.
Page 8 Spearhead Multi-Cut 420 Before fitting the PTO, first clean and grease. Remove the clamp bolts on the yoke and slide onto the machine gearbox, refit the bolts into the grove tighten 150Nm. Pull back the PTO release ring and slide onto tractor stub shaft until it engages.
Page 9: Setting Up Your Machine
Spearhead Multi-Cut 420 Setting Up Your Machine Height To alter the height of cut; raise the machine so the wheels are clear of the ground, remove pin a (Fig. 3) adjust the wheel arm, replace pin a (Fig 3) and gently lower the machine until the wheel contacts the ground.
Page 10: Operation
Spearhead Multi-Cut 420 Operation Once ready for work with the wings unfolded, raise the mower clear of the ground and slowly engage the PTO with the tractor engine at low revs to prevent shock damage to the machine. Slowly increase the engine revs to achieve the recommended PTO speed of 1000r.p.m.
Page 11: Transportation
Spearhead Multi-Cut 420 Warning Do not run the machine with the wings raised, serious damage will result to the drive line. Options  An extra two wheels are available for the wings to improve contour following on uneven ground and reduce wear on the skids.
Page 12: Machine Protection
Alternatively refer to page 17. If in any doubt, consult Spearhead’s Service Department or your local Spearhead Dealer for further advice. Fig. 7 Slip Clutch...
Page 13: Servicing & Maintenance
Spearhead Multi-Cut 420 Warning Never carry out any servicing or maintenance work without first disengaging the PTO and then stopping the tractor engine before leaving the seat. On delivery of your machine check that the dealer has completed the P.D.I form, ensure the warranty registration form is completed and returned.
Page 14: Daily
Spearhead Multi-Cut 420 Servicing & Maintenance Daily  Grease all points.  Check bolts are tight on all gearboxes.  Check condition of blades and blade bushes; ensure all retaining bolts are fully tight.  Check wheel nuts are tight.
Page 15: Every 8 Hours
Spearhead Multi-Cut 420 Service & Maintenance – Every 8 hours Fig 9 Primary Input Shaft  For maximum life and performance, the UJ must be greased regularly. Lubricate the driveline up to 6 pumps of grease may be required. ...
Page 16: Regularly
Spearhead Multi-Cut 420 Servicing & Maintenance Regularly  Check there is no wrapping of string, plastic, grass or other debris between rotor boss and gearbox oil seal.  Inspect gearbox seals for leaks.  Clear grass and other debris from the deck.
Page 17: Slip Clutch Settings
Spearhead Multi-Cut 420 420 Slip Clutch Maintenance & Settings Check the condition of the friction discs before use and following periods of storage. Release the tension from the springs and turn the clutch body while holding the inner P.T.O hub stationary, if unable to turn freely strip down clutch and free off seized parts ensuring to remove all traces of rust.
Page 18: Skids
Then, and only then may the outer bolts can be loosened. Failure to observe these precautions could seriously injure and could even result in loss of life. If in any doubt consult a tyre repair specialist or Spearhead’s Service Department. Hub Nuts Outer Nuts (painted red)
Page 19: Storage
Spearhead Multi-Cut 420 Storage Before storing away, thoroughly wash the machine removing all traces of grass and dirt. Great care must be taken when washing with high-pressure hoses, do not hold the water jet close to the paintwork. Use steam cleaners with caution and be sure to remove all detergents to avoid any discoloration or damage to the paintwork.
Page 20: Trouble Shooting Guide
Spearhead Multi-Cut 420 Trouble Shooting Guide Slip Clutches Overheating Broken or Damaged Blades Raise cutting height to avoid Machine overloaded striking the ground Incorrect operating speed Remove or avoid obstacles Incorrect setting such as rocks Check rotor speed Blades hitting the ground...
Page 21: Warranty
6. This warranty does not extend to parts, materials or equipment not manufactured by Spearhead, for which the Buyer shall only be entitled to the benefit of any such warranty or guarantee given by the manufacturer to Spearhead. Only genuine Spearhead replacement parts will be allowable for warranty claims.
Page 22 The Spearhead warranty may be transferred to a subsequent owner of the machinery (for use within the UK) for the balance of the warranty period subject to all of the warranty conditions and provided that the Change of Owner form is completed and sent to Spearhead within 14 days of change of ownership.