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Spearhead TWIGA 545 Handbook

Reach mower
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Spearhead TWIGA 5 SERIES
TWIGA Reach Mower
545/595/640T
Edition 1.2 – November 2017
PART No. 8999015
0

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  • Page 1 Spearhead TWIGA 5 SERIES TWIGA Reach Mower 545/595/640T Edition 1.2 – November 2017 PART No. 8999015...

  • Page 2: Ec Declaration Of Conformity

    Spearhead TWIGA 5 SERIES CE Declaration of Conformity, Conforming to EU Machinery Directive 2006/42/EC We, Spearhead Machinery Ltd, Green View, Salford Priors, Evesham, Worcestershire, WR11 8SW hereby declare that: Product ……………………………………………..………………………… Product Code ……………………………………………..………………………… Serial No ……………………………………………..……..…………………. Type ……………………………………………..………………………… Manufactured by: Alamo Manufacturing Services (UK) Limited, Station Road, Salford Priors, Evesham, Worcestershire, WR11 8SW Complies with the required provisions of the Machinery Directive 2006/42/EC.

  • Page 3: Warranty

    VERIFICATION OF WARRANTY REGISTRATION DEALER WARRANTY INFORMATION & REGISTRATION VERIFICATION It is imperative that the selling dealer registers this machine with Spearhead Machinery Limited before delivery to the end user – failure to do so may affect the validity of the machine warranty.
  • Page 4 Operator’s Manual has been completed by the selling dealer. LIMITED WARRANTIES 1.01. All machines supplied by Spearhead Machinery Limited are warranted to be free from defects in material and workmanship from the date of sale to the original purchaser for a period of 12 months, unless a different period is specified.
  • Page 5 1.07. Machines must be repaired immediately a problem arises. Continued use of the machine after a problem has occurred can result in further component failures, for which Spearhead Machinery Ltd cannot be held liable, and may have safety implications. 1.08. Except as provided herein, no employee, agent, dealer or other person is authorised to give any warranties of any nature on behalf of Spearhead Machinery Ltd.
  • Page 6 Spearhead Machinery Ltd. 2.04. All claims must be submitted, by an authorised Spearhead Machinery Service Dealer, within 30 days of the date of repair. 2.05. Following examination of the claim and parts the manufacturer will pay, at their discretion, for any valid claim the cost of any parts and an appropriate labour allowance if applicable.

  • Page 7: Table Of Contents

    Spearhead TWIGA 5 SERIES Contents General Information EC Declaration of conformity Warranty Introduction Specification Safety Safety Recommendation Overhead Power Lines Safety Decal Warning Signs Road Work Guidelines Lighting Kits Training Tractor Requirements Lifting Points Installing your Machine Attaching your Machine to the Tractor – Using 3 Point Linkage...
  • Page 8 Spearhead TWIGA 5 SERIES Service & Maintenance Daily Grease Points Torque Settings Hydraulic Hoses Oil Supply Filtration Maintenance Pin & Bushes Storage Regular Service Chart Diagnostics Pump & Motor Failure Prevention Trouble Shooting...

  • Page 9: Introduction

    Spearhead TWIGA 5 SERIES Introduction The TWIGA is a very robust high capacity reach mower that is easy to operate and maintain. To ensure trouble-free operation this manual should be carefully studied. The term Left and Right hand applies to the machine when coupled to the tractor and viewed from the rear, this also applies to the tractor.

  • Page 10: Specification

    Spearhead TWIGA 5 SERIES Specification 640T Weight inc. Oil (Kg) 1360 1380 1540 Weight of head (Kg) Tractor horse power 85-120 95-120 100-140 3500 3750 4000 Min. tractor weight (Kg) Oil tank capacity (ltr) Reach A (m) Reach B (m)

  • Page 11: Safety Recommendation

    Spearhead TWIGA 5 SERIES Safety Recommendations Beware of the following Potential Dangers associated with the use of this machine: • Becoming trapped when hitching or unhitching • Tractor overbalancing when arm is extended • Electrocution due to hitting overhead power lines •...
  • Page 12 Spearhead TWIGA 5 SERIES • Follow the manufacturer’s instructions for attachment and removal of machine from the tractor are 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.

  • Page 13: Overhead Power Lines

    Spearhead TWIGA 5 SERIES Overhead Power Lines It cannot be stressed enough the dangers involved when working in the vicinity of Overhead Power Lines (OHPLs). Some of our machines are capable of reach in excess of 8 metres (26’); they have the potential to well exceed, by possibly 3 metres (9’...
  • Page 14 Spearhead TWIGA 5 SERIES Definitions of Exclusion Zones Risk Assessment Before starting to work near OHPLs you should always assess the risks. The following points should be observed; Know the risks of contacting OHPLs and the risk of flashover. Find out the maximum height and maximum vertical reach of your machine.

  • Page 15: Safety Decal

    Spearhead TWIGA 5 SERIES Safety Decal Warning Warning Beware of Check all bolts are tight every 8 hours. escaping fluid. Warning Warning Beware of overhead Shut off engine and remove electrical power lines. key before performing maintenance or repair work.

  • Page 16: Lighting Kits

    Spearhead TWIGA 5 SERIES 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 17: Attaching Your Machine To The Tractor - Using 3 Point Linkage

    Spearhead TWIGA 5 SERIES Attaching Machine to Tractor – 3 Point Linkage 1. Reverse tractor to machine and attach lower links. 2. Fit stabiliser bracket into top link clevis and fit top link. The standard link comes with a Cat III hole plus a Cat III to Cat II reducing bush, a 28mm bracket is available on request.
  • Page 18 Spearhead TWIGA 5 SERIES 4. Raise machine to required height. Both P.T.O. shafts should be roughly in-line, an upward angle of up to 17° is acceptable to ensure adequate clearance. 5. Adjust the top link so that the machine sits vertically.
  • Page 19 Spearhead TWIGA 5 SERIES 7. It is recommended that the controls are mounted in-place of the seat armrest on the side of the cutting head. A pivoting bracket is supplied with every machine, if additional brackets are required contact your local dealer.
  • Page 20 Spearhead TWIGA 5 SERIES 9. Raise leg stands to ensure they don't get damaged. Adjust check chains ensure the machine is secure and cannot swing from side to side. 10. Use only tractors with safety glass. If windows are not laminated safety...

  • Page 21: Attaching Your Machine To The Tractor - Using Axle Mounting

    Spearhead TWIGA 5 SERIES Attaching Machine to Tractor – Axle Mounting Mount axle brackets as instructed on separate fitting sheet specific to your tractor type. 2. Detach tractor draft links. 3. Fit lift-in hitch assembly 4. Assemble sub frame to suit axle width 1m or 1.1m, mount sub frame assembly...
  • Page 22 Spearhead TWIGA 5 SERIES 5. Offer up frame to tractor and adjust to give required length. Distance “X” to be kept to the minimum ensuring the machine is close coupled, as a guide set the same as original. Attach tractor lift links to frame with suitable pins.

  • Page 23: Running Up Your Machine

    Spearhead TWIGA 5 SERIES Running Up Your Machine 1. First ensure the rotor is in the ‘off’ position and P.T.O. drive is disengaged, and then start the tractor. 2. Engage P.T.O. into gear and run machine up to half revs allowing oil to circulate for about 5 minutes before operating arms.

  • Page 24: Removing From The Tractor

    Spearhead TWIGA 5 SERIES Removing from the tractor The following steps MUST be followed in exactly the same order in which they appear, with removal of the top link being the last action before driving the tractor away. Do not attempt to operate machine controls through the rear cab window whilst standing on or amongst the linkage.

  • Page 25: Hydraulic Proportional Controls - 2Sv

    Spearhead TWIGA 5 SERIES Hydraulic Proportional Controls - 2SV Autopilot Cancel Head Crowd Head Crowd LH - Head Out LH - Head In RH - Head In RH - Head Out Power ON/OFF Rotor Stage 1: Head Float Power Indicator...

  • Page 26: Cable Controls

    Spearhead TWIGA 5 SERIES Cable Controls Work Head Out/ Lower Float Rotor Forward Neutral Transport Head In Lift Rotor Back...

  • Page 27: Multipilot Controls

    Spearhead TWIGA 5 SERIES MULTIPILOT Controls Tele Tele LH - Tele Out LH - Tele In RH - Tele In RH - Tele Out Head Float On Arm Float On Slew Slew LH - Slew In LH - Slew Out...

  • Page 28: Operation Warnings

    Spearhead TWIGA 5 SERIES Operational Warnings • Never drive the tractor with arm out stretched (except when cutting). When moving at work always first retract arms. Transport with care. Metal fatigue is always caused by careless transportation and misuse. If the ground is uneven or bumpy slow down.

  • Page 29: Moving Into Transport Position

    Spearhead TWIGA 5 SERIES Moving into transport position Warning Always transport machine with the slew-locking pin fitted and the arms closed in the transport position on the bump stops. Avoid high transport speeds, which will cause unnecessary strain on machine and tractor.
  • Page 30 Spearhead TWIGA 5 SERIES +300m 4. Carefully position main boom over the tractor cab roof until rubber bump stop meets the flip-over transport bracket, allow minimum of 300mm. Warning: Bracket must be in correct position or main boom may move over centre and damage cab roof, if positioned too close.

  • Page 31: Operation

    Spearhead TWIGA 5 SERIES Operation Transport to work position • Remove locking pin from slew post. • Turn lift ram isolation tap to on position. • Ensure rotor/motor switch is off. • Engage PTO low revolutions. • Lower main lift ram only, until main arm is vertical.
  • Page 32 Spearhead TWIGA 5 SERIES Reversing Head Drive • Ensure the rotor has stopped spinning or is not blocked; failure to ensure this will cause irreparable damage to hydraulic components. • Change rotor rotation via the button on the PRO PILOT 3SV or rocker switch on the 2SV, which is fitted with a locking gate to prevent accidental movement.

  • Page 33: Oil Cooler

    Spearhead TWIGA 5 SERIES Oil Cooler The optional fitment of an oil cooler prolongs the life of the hydraulic oil and components in hot and arduous conditions. It is important to connect the power lead to the control box directly to the tractor battery.

  • Page 34: Head Float

    Spearhead TWIGA 5 SERIES Head Float Head Float This option allows the flail head to follow contours of the ground without having to constantly control the angle of the head. The centre of balance is the best mounting point for the head if head float is to be used properly.

  • Page 35: Arm Float

    Spearhead TWIGA 5 SERIES Arm Float Arm Float This is only to be used in verge mowing set up, it will reduce weight on the rear roller allowing head to move more easily, following small changes in ground contours in a forward motion, with the aid of a pre-charged gas accumulator.

  • Page 36: Debris Blower

    Spearhead TWIGA 5 SERIES Debris Blower Hydraulically driven fan from tractor external services, please quote tractor oil flow when ordering (maximum 40lt per min). The return oil must go to a free flow connection i.e. filler plug. Avoid quick release couplings.

  • Page 37: Hydraulic Rear Roller

    Spearhead TWIGA 5 SERIES Hydraulic Rear Roller The hydraulic rear roller is controlled by a switch on the control panel. The control of the rear roller is either raised or lowered, there is no in-between height control. Height is set as above for either hedge or grass cutting...

  • Page 38: 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 39 Spearhead TWIGA 5 SERIES Set-Up: Correct position of micro switches Bolt “A” Screw “B” Fig. 2 1. Place rear roller on the ground 2. Ensure the locking pins (fig.1) are installed into the Auto-pilot with the arm fully lowered 3. Engine turned off, key removed, and PTO disengaged.
  • Page 40 Spearhead TWIGA 5 SERIES Summary You must ensure that the micro switches make and break a circuit as the cams rotate through their arc of travel. It is very important to correctly set the micro switches to ensure the electrical circuit functions, the switch lever arm must follow...
  • Page 41 Spearhead TWIGA 5 SERIES Auto Pilot Switch Alignment Bend lever arm of switch to align with the middle of each cam, ensure they don’t overlap onto the adjacent cam. Alternative Settings Move the cams apart to increase amount of weight carried on the...
  • Page 42 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 43: Quad Saw

    Spearhead TWIGA 5 SERIES Quad Saw • Never operate the machine with other people present, as it is possible for debris to be thrown from the saw blades in all directions. • Always ensure all cab safety guards are in place and all tractor windows are closed.
  • Page 44 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 the Quad Saw The blades must be mounted in a downward cut rotation. Always use the blades vertically positioned in relation to the direction of travel.
  • Page 45 Spearhead TWIGA 5 SERIES Quad Saw Operating Instructions It is recommended to travel forward slowly when starting work in order to maintain the correct speed of the blades. Adjust the angle of the saw to present the branches approx 90° to the blades. Always ensure the blades are vertical to allow cut branches to fall away.

  • Page 46: Cutter Bar

    Spearhead TWIGA 5 SERIES Cutter Bar Description The optional 1.5m cutter bar is a robust construction of double fingers and reciprocating knife, suitable for cutting shrubs and hedges of a woody material up to 30mm diameter. Operation Run the PTO at low speed 150/200 rpm only; normal 540 R.P.M. will cause unnecessary wear and vibration, which may lead to premature failure.

  • Page 47: Telescopic Arm

    Spearhead TWIGA 5 SERIES Telescopic Arm Description Telescopic extending arm provides extra reach, particularly useful for deep ditches, banks and for reaching high hedges. Operating the Telescopic Arm Use the electric switch to adjust the length of the extending telescopic dipper arm to suit working conditions and use dipper ram to vary reach as required.

  • Page 48: Forward Reach

    Spearhead TWIGA 5 SERIES Forward Reach (FR) Description This useful feature provides extra visibility particularly when topping a hedge, or verge mowing. Operating the Forward Reach Before operating the arm, ensure the head is one metre off the ground and at least two metres away from the tractor.

  • Page 49: Service & Maintenance

    Spearhead TWIGA 5 SERIES Service and Maintenance Daily grease points TWIGA machine Optional - Quad saw Head Rotor & Roller Optional - Autopilot Grease 1.2m head every 8 hours (5-10 pumps)

  • Page 50: Torque Settings

    Spearhead TWIGA 5 SERIES Washing your machine Grease all your machine and optional parts after each time you wash your machine. Gearbox Before first use check gearbox oil level, thereafter check every 8 hours. After the first 50 hours drain and replace the gearbox oil, thereafter annually.

  • Page 51: Hydraulic Hoses

    • Hoses with damaged metal braid should be replaced. • When replacing hoses quote number stamped on fitting at one end. The Spearhead hydraulic system works at very high pressure, when replacing hoses use only genuine hoses, a burst hose could be very dangerous.

  • Page 52: Oil Supply

    Spearhead TWIGA 5 SERIES Oil Supply • Daily before starting up check oil level in tank reservoir. • It is a good practice to constantly keep an eye on the tank level gauge, (this can be seen from the tractor seat) as a pipe burst could empty the tank within minutes.

  • Page 53: Pin & Bushes

    Spearhead TWIGA 5 SERIES Pins & Bushes All main pivot points are furnished with replaceable bushes. If there are any signs of wear, these must be replaced. All bushes are available from Spearhead Parts Department. Warning Do not use grease containing Molybdenum disulphide on nylon bushes and wear pads.

  • Page 54: Regular Service Chart

    Spearhead TWIGA 5 SERIES Regular Services Chart Service Hours Service points 1-4 hrs Bolts are fully tightened Condition of flails Condition of hoses especially for chafing Flail bolts are fully tightened Flail head retaining bolts are fully tightened Gearbox seals (If oil is leaking replace immediately)

  • Page 55: Trouble Shooting

    Spearhead TWIGA 5 SERIES Trouble Shooting Problem Cause Solution Gearbox overheating Oil level incorrect Check oil level Oil grade incorrect Check oil grade Implement overloaded Reduce forward speed Wrong PTO speed Ensure tractor PTO speed matches implement Excessive belt wear...
  • Page 56 Spearhead TWIGA 5 SERIES Trouble Shooting Problem Cause Solution Irregular arm movement Spool contacting with housing Check spool is free moving Broken spring in spool valve Check spring Failed ram seals Repair ram Electrically operated Faulty wiring Check wiring and switches...
  • Page 57 Spearhead TWIGA 5 SERIES...
  • Page 58 Spearhead TWIGA 5 SERIES Spearhead Machinery Ltd Green View Salford Priors Evesham Worcestershire WR11 8SW Tel: 01789 491860 Fax: 01789 778683 www.spearheadmachinery.com enquiries@spearheadmachinery.com Spearhead Machinery Ltd Green View Salford Priors Evesham Worcestershire WR11 8SW Tel: 01789 491860 Fax: 01789 778683 www.spearheadmachinery.com...

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