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Spearhead Excel 606 Handbook

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Spearhead
Spearhead
To cover operation of the following machines
Excel 606, 686, 726, 836, 7000, 8000
And Highway 606
Handbook
rd
3
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.spearhead.uk.com
enquiries@spearhead.uk.com
Spearhead
© Spearhead Machinery Limited 2004
Excel 606, 686, 726 & 836
1

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Summary of Contents for Spearhead Excel 606

  • Page 1 Spearhead Spearhead To cover operation of the following machines Excel 606, 686, 726, 836, 7000, 8000 And Highway 606 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.

  • Page 2: Table Of Contents

    Grass Cutting…………………………………………….………………..25 Operation Operation Warnings……………………………………………...………26 Moving into Transport Position………………………………………….27 Transport to Work Position……………………………………………...29 Engaging head drive……………………………………………………..29 Disengage head drive……………………………………………………29 Break back……………………………………………...…………………30 Tractor forward speed……………………………………………………31 Cutting sequence…………………………………………………………31 Wire Trap………………………………………………………………….32 High Voltage Cables……………………………………………………..32 Oil Cooler………………………………………………………………….32 Spearhead Excel 606, 686, 726 & 836...
  • Page 3 Oil Recommendations…………………………………..…..……….…50 Filtration Maintenance………………………………….….………..50 Flail Head…………………………………………………….…………..51 Pin & Bushes, Storage…………………………………………..….…52 Torque Settings…………………………………………………..….…53 Regular Service Chart……………………………………………..….53 Diagnostics Troubled shooting Excel / Highway………………………..………..54 Pump and Motor failure……………………………………………….57 Hydraulic Diagram…….………………………………………….……60 Notes……………………………………………………………….……62 Warranty The Spearhead Warranty……………………………………………..63 Extended Warranty……………………………………….……………64 Excel 606, 686, 726 & 836...

  • Page 4: Introduction

    If the Highway is to be used for hedge cutting, the optional adjustable front guard should be fitted, and the auto pilot assembly removed between the dipper arm and head, replaced with the standard head bracket. Excel 606, 686, 726 & 836...

  • Page 5: Specification

    2040 2060 Tractor (hp) 90-160 120-180 130-180 135-200 Minimum tractor weight (kg) 4000 4200 4500 5000 Oil tank capacity A reach (m) B reach (m) C reach (m) D reach (m) E reach (m) Excel 606, 686, 726 & 836...

  • Page 6: Machine Safety Stickers

    Warning Warning Stay clear of mower flails. Carefully read operator’s manual before handling this machine. Observe instructions and safety rules when operating. Warning Do not remove / open guard.. Excel 606, 686, 726 & 836...

  • Page 7: Safety Recommendation

    Use clear warning signs to alert others to the type of machine working in the vicinity. Signs should be placed at both ends of the work site and should be in accordance with Department of Transport recommendations. Excel 606, 686, 726 & 836...
  • Page 8 Never transport with the PTO engaged • Never enter the working area of the machine (risk of injury!) • Never transport with the controls live, always turn off electrical isolator switch (red) and disconnect supply. Excel 606, 686, 726 & 836...

  • Page 9: Front Mounted Machines

    Collect all warning signs promptly when the job is finished. Training It is the responsibility of the Spearhead dealer to provide instruction on the safe installation, operation and maintenance of the machine in the first instance. Further training is available from Spearhead Machinery Ltd on request, at cost.

  • Page 10: Tractor Requirements

    (+ve) and black wire for negative (-ve) • Spearhead particularly recommend “Category 2” three point linkage of ball end type, we do not advise the use of claw type hitching. The quick release latches should be checked, if worn or insecure they may cause accidental damage or personal injury if the machine becomes detached.

  • Page 11: Attaching Your Machine To The Tractor - Using Axle Mounting

    If there is any doubt please contact your supplying dealer or Spearhead Service Department. Failure to follow the correct procedure To attach/unattached the machine could result in personal injury or machine damage. Any resulting damage to a machine is not covered by warranty.
  • Page 12 Attach tractor lift links to frame with suitable pins. Please Note Please Note The hole sizes may not match the tractor links, this will not matter as machine weight is carried on the stabiliser frame when fully mounted. 6. Open catch Excel 606, 686, 726 & 836...
  • Page 13 Consult your local dealer for advice. An electric 12-volt supply cable will be needed from a 30-amp source. To power controls and a separate 12 volt supply direct from the battery to the oil cooler. Excel 606, 686, 726 & 836...

  • Page 14: Attaching Your Machine To The Tractor - Using 3 Point Linkage

    13. Fit top link to machine and the tractor 14. Caution: when positioning the top link, it is most important to select the most suitable hole position to achieve as near as possible a straight line between all 3 holes. Excel 606, 686, 726 & 836...
  • Page 15 Warning Always stop the engine and ensure the PTO drive is disengaged before fitting the PTO. Always replace slew pin for the transport and before unhitching the hedge cutter. Excel 606, 686, 726 & 836...
  • Page 16 Remove slew-locking pin 20. Operate the main arm to bring the frame horizontal by lowering the head weight to the ground. Adjust top link 21. Adjust top link length until the main frame is vertical. Excel 606, 686, 726 & 836...
  • Page 17 Mesh can be retained by springs and clips supplied, but it is the operators responsibility to ensure guarding is firmly in place. Excel 606, 686, 726 & 836...

  • Page 18: Running Up Your Machine

    2. Engage PTO into gear and run machine up to half revs, allowing oil to circulate for about 15 minutes before operating arms. 3. Re-check oil level, - check for oil leaks. All Spearhead machines have been fitted to a tractor and checked thoroughly. However, hose connections can become loose in transit and these should be checked again before the machine is put to work.

  • Page 19: Removing From The Tractor

    9. Remove stabiliser bars, lower link pins, PTO shaft and control unit from the cab. 10. Remove top link. 11. Slowly drive tractor away. Subsequent Attachment to a Different Tractor Follow the steps for “Attaching your Machine to the Tractor” (page 11). Excel 606, 686, 726 & 836...

  • Page 20: Hydraulic/Electric Controls

    1, 2 Main/dipper arm 5 Rotor on/off (red) On/off switch (red) Autopilot Angle float or Rotor indicator Head float/Angle float (green) Auto reset (yellow) Head float/Third arm control 4 Manual slew (black) 6 Tele/VFR (black) Excel 606, 686, 726 & 836...

  • Page 21: How Your Controls Work

    Spearhead How your controls work Movements Hydraulic/Electric Controls Excel 606, 686, 726 & 836...

  • Page 22: Cutting Head Set-Up

    It is essential for operator safety that it remains in place. It is also an essential structural part of the cutting head. Removing it will cause premature wear on rotor bearings and will lead to premature wear on the fabrications. Excel 606, 686, 726 & 836...
  • Page 23 Spearhead Cutting Head Set-up Excel 606, 686, 726 & 836...

  • Page 24: Hedge Cutting

    Warning Seek advice before reversing direction of motor. Optional belt drive rotor - use smaller pulley on rotor shaft for 3100 rpm. Do not remove cowling from the head when cutting “up”. Excel 606, 686, 726 & 836...

  • Page 25: Grass Cutting

    Do not verge mow with rear roller set too high; remember the rear roller is used to control the cutting height. Optional belt drive rotor Use larger pulley on rotor shaft for reduced speed 2500 rpm. Excel 606, 686, 726 & 836...

  • Page 26: Operation Warnings

    Never attempt to operate the machine while going backwards. It will immediately damage the arms and possibly the flail head. Remember, before selecting reverse gear always lift the flail head out of work and retract the arms towards the tractor. Excel 606, 686, 726 & 836...

  • Page 27: Moving Into Transport Position

    1 metre off the ground (close telescopic or VFR where applicable). Slew rearwards to fully close slew ram 2. Gently close reach arm into cradle and bump stop on main arm. Excel 606, 686, 726 & 836...
  • Page 28 Flip over transport bracket 4. Mount adjustable transport link. Transport link No pin 5. Ensure top bracket is able to float by removing second rear pin. Floatin Slew locking pin 6. Fit locking pin into slew frame. Excel 606, 686, 726 & 836...

  • Page 29: Transport To Work Position

    Disengage head drive • Slowly decrease engine revolutions to a fast idle. • Move rotor control lever (5) to ‘OFF’. • Never increase or decrease PTO speed rapidly, this could seriously damage pumps and motor. Excel 606, 686, 726 & 836...

  • Page 30: Break Back

    The break back feature does not excuse the machine operator of their need to be aware of obstacles and to avoid hazards. It is your responsibility to maintain a long reliable working life. Excel 606, 686, 726 & 836...

  • Page 31: Tractor Forward Speed

    Cut field side and bottom of hedge first Cutting hedge from roadside Warning Never operate with flail rotor facing towards the tractor. This is potentially dangerous with debris being thrown towards the tractor, and unseen hazards may cause damage. Excel 606, 686, 726 & 836...

  • Page 32: Wire Trap

    Prolongs the life of the hydraulic oil and components in hot and arduous conditions. Note For machines fitted with an oil cooler it is important to connect a separate lead direct from the battery to the oil cooler control Excel 606, 686, 726 & 836...

  • Page 33: Angle Float

    To regain manual control switch off. Warning Do not fold the machine up for transport before turning off the angle float. Excel 606, 686, 726 & 836...

  • Page 34: Head Float

    As the ground contours alter it is necessary to reset the pressure within the main lift circuit as above, constantly raising or lowering control lever. Warning Do not fold the machine up for transport before turning off the head float. Excel 606, 686, 726 & 836...

  • Page 35: Debris Blower

    Excessive use may cause overheating. The unit can be angled for the best effect. Transport The blower housing protrudes and care should be taken not to damage unit. Excel 606, 686, 726 & 836...

  • Page 36: Hydraulic Rear Roller

    When hedge cutter is fitted with reverse rotor direction control the hydraulic rear roller will not function. To set rear roller when rotor is reversed, bolts supplied must be fitted to h old roller in position. Excel 606, 686, 726 & 836...

  • Page 37: Autopilot

    (see right). Ensure you fully understand the operation of the Spearhead Autopilot, which will reduce machine and operator fatigue and improve hourly output, machine life, standard of work and comfort to the operator.
  • Page 38 Excel 606, 686, 726 & 836...
  • Page 39 Auto Pilot When one of the switches is closed, main arm will either raise or lower dependant on which switch has been triggered. Excel 606, 686, 726 & 836...
  • Page 40 Warning If the working range is altered the spring length on the damper may need adjusting to compensate. Note The basic factory setting for the spring length is 200mm Excel 606, 686, 726 & 836...
  • Page 41 The operator will control reach whenever necessary. The Spearhead Autopilot will assist you with grass mowing. It does not relieve you of your responsibility to drive with care and understanding for the machine.

  • Page 42: Quad Saw

    Never attempt to use the machine for any purpose other than that it was designed for. • Ensure that all warning labels are always visible and that they are not damaged, defaced or missing. • P.T.O. speed 540 R.P.M. Excel 606, 686, 726 & 836...
  • Page 43 Beware! The tension has now changed to 550N for the short and 650N for the long belts. Contact the Spearhead Service department if you have any questions. Mounting of the Quad saw The blades must be mounted in a downward cut rotation (Fig. 1). Always use the blades vertically positioned in relation to the direction of travel (Fig.
  • Page 44 Failure to fill the motor case with oil will lead to seizure due lack of lubrication. Note To change rotation of motor exchange the position of the pressure/returns hoses and the anti-cav valve with the plug. Plug Anticav valve Drain Port fill with oil here Excel 606, 686, 726 & 836...

  • Page 45: Telescopic Arm

    Over frequent use of telescopic arm will cause premature wear of adjustable pads. Transport of the Telescopic arm Always fully retract before folding machine arms into transport position. Excel 606, 686, 726 & 836...

  • Page 46: Variable Forward Reach

    When operating the cutting head close to the tractor extreme care must be taken to avoid contact with the cab. Transport of the Variable forward reach Never attempt transport position without first fully retracting the variable forward reach arm. Excel 606, 686, 726 & 836...

  • Page 47: Service & Maintenance

    Greasing / Lubrication Points All the following grease points need to be greased daily Excel/Highway machine Optional - Quad saw Head Rotor & Roller Optional - Autopilot Grease 1.2m head every 8 hours (5-10 pumps) Excel 606, 686, 726 & 836...
  • Page 48 Motor drive splines are lubricated via the pulley shaft and should be greased every 8 hours with 5-10 pumps of grease Oil requirements Fill the tank to centre of sight gauge with approximately 200 litres of Texaco Rando HD46 or equivalent oil. Do not over fill. Excel 606, 686, 726 & 836...

  • Page 49: Hydraulic Hoses

    Daily inspect all hydraulic hoses and fittings to be in good order. Any damages or leaks must be rectified immediately, this is part of the daily maintenance and it is your responsibility to help ensure a long reliable working life. Spearhead provide a tool kit to enable hoses to be tightened as part of routine maintenance.

  • Page 50: Oil Supply

    & motor damage If any failure or replacement of hydraulic parts have occurred then the return line filter must be replaced immediately Excel 606, 686, 726 & 836...

  • Page 51: Flail Head

    Warning When end mounted, head may foul on machine. Do not slide head mounting bracket past centre stops to extreme end on 1.5metre head. Excel 606, 686, 726 & 836...

  • Page 52: Pin & Bushes, Storage

    All main pivot points are furnished with replaceable pins and bushes. If there are any signs of wear, these must be replaced. All parts are available from Spearhead Parts Department. The pins are secured with a nut and bolt through the head to prevent turning. A retaining washer and screw are clamped to the base of the pin to prevent spreading and must be kept tight (use locking compound).

  • Page 53: Torque Settings

    Oil level in reservoir U.J. joints 50 hrs Gearbox oil (use EP 90 oil) Return line filter element 250-300 hrs Return line filter element Hydraulic oil if any signs of contamination appears Excel 606, 686, 726 & 836...

  • Page 54: Troubled Shooting Excel / Highway

    Spearhead Trouble shooting Excel / Highway In the event of your machine not functioning correctly you will need to Identify the type of failure Excel 606, 686, 726 & 836...
  • Page 55 Reduce forward speed or increase height of cut Break-back operating Machine being used on Switch off auto reset Frequently excessive incline Weight of machine being Use Autopilot or head float carried upon rear roller Machine not set vertical Shorten top link Excel 606, 686, 726 & 836...
  • Page 56 Failed ram seals Repair ram Faulty wiring Check wiring and switches Electrically operated Dirt in valve Check of ingress of dirt valve not responding Sticking valve Replace the valve Insufficient voltage Attend to bad connection Excel 606, 686, 726 & 836...

  • Page 57: Pump And Motor Failure

    Remember: pump and motor warranty is limited to replacement due to faulty materials or manufacture. Cavitations, contamination and peak pressures are easily detected on inspection, warranty will not be considered if failure is due to misuse. Excel 606, 686, 726 & 836...
  • Page 58 Check that all connections are secure and that the entire system is completely clean • Ensure check valve (0.5 bar) is installed the correct way between motor and drain hose, to allow excess oil out Excel 606, 686, 726 & 836...
  • Page 59 Gradually increase the pressure and speed of rotation up to the pre set operating level Monitor the returns filter pressure Non return valve 0.5 bar Fitted to motor body to prevent lubrication escaping. Tank Motor Check valve 0.5 bar Excel 606, 686, 726 & 836...

  • Page 60: Hydraulic Diagram

    B - Black W - White T – Turquoise S – Slate R – Red O – Orange U - Blue N – Brown K - Pink Y - Yellow G – Green P - Purple Excel 606, 686, 726 & 836...
  • Page 61 10- Main Lift Ram R- Return Oil 11- Dipper Ram P- Pilot Pressure 12- Head Ram B- Break back Pressure 13- Motor M- Motor Pressure 14- Motor Valve 15- Tank 16- Check Valve 17- Angle Float Excel 606, 686, 726 & 836...

  • Page 62: Notes

    ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… ………………………………………………………………… Excel 606, 686, 726 & 836...

  • Page 63: The Spearhead Warranty

    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 64: Extended Warranty

    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.

This manual is also suitable for:

Excel 686Excel 726Excel 836Excel 7000Excel 8000

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