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Summary of Contents for Spearhead TWIGA 500
- Page 1 Spearhead TWIGA 500 TWIGA Reach Mower 500/500FR Edition 1.4 – November 2017 Part No. 8999005...
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Page 2: Ce Declaration Of Conformity
Spearhead TWIGA 500 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.
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Page 7: Table Of Contents
Spearhead TWIGA 500 Contents General Information CE Declaration of Conformity Warranty Introduction Specification Safety Safety Recommendation Over Head Power Lines Safety Decal Warning Signs Roadwork Guidelines Training Lifting Point Tractor Requirements Installing/Removing Machine Attaching Your Machine to The Tractor Running up your Machine... - Page 8 Spearhead TWIGA 500 Service & Maintenance Daily Grease Points Torque Settings Hydraulic Hoses Oil Supply Filtration Maintenance Cables Pin & Bushes Storage Regular Service Chart Diagnostics Pump & Motor Failure Prevention Trouble Shooting...
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Page 9: Introduction
Spearhead TWIGA 500 Introduction The TWIGA 500 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 500 Specification 500FR Weight inc. Oil (Kg) 1030 1050 Weight of head (Kg) Min tractor power (Hp) 2500 2500 Min. tractor weight (Kg) Oil tank capacity (ltr) Reach A (m) Reach B (m) Reach C (m) Reach D (m) -
Page 11: Safety Recommendation
Spearhead TWIGA 500 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 500 • 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.
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Page 13: Overhead Power Lines
Spearhead TWIGA 500 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 500 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.
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Page 15: Safety Decal
Spearhead TWIGA 500 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. Warning Signs You are advised to display clear warning signs to indicate the type of machine when working in public places. -
Page 16: Training
Spearhead TWIGA 500 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
Spearhead TWIGA 500 Attaching Machine to Tractor – 3 Point Linkage 1. Reverse tractor to machine and attach lower links. You will also need to attach the lower stabiliser tubes as they share the same pin. 2. Fit stabiliser bracket into top link clevis and fit top link. - Page 18 Spearhead TWIGA 500 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 500 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. A 12v/30Amp power supply will be required.
- Page 20 Spearhead TWIGA 500 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...
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Page 21: Running Up Your Machine
Spearhead TWIGA 500 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 22: Removing From The Tractor
Spearhead TWIGA 500 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 23: Hydraulic Proportional Controls - 2Sv
Spearhead TWIGA 500 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 Stage 2:... -
Page 24: Hydraulic Proportional Pro Pilot Controls - 3Sv
Spearhead TWIGA 500 Hydraulic Proportional PRO PILOT Control - 3SV Electric Proportional PRO PILOT Control - 3SV Tele Tele LH - Tele Out LH - Tele In RH - Tele In RH - Tele Out Slew Slew LH - Slew Out... -
Page 25: Pro Pilot Switch Box
Spearhead TWIGA 500 PRO PILOT Switch Box Power Indicator Auto Reset Hydraulic Roller Power ON/OFF Hour Meter Rotor Autopilot Reverse Rotor Arm Float Spare Spare The switch box is supplied with a suction pad to allow the box to be mounted to the... -
Page 26: Cable Controls
Spearhead TWIGA 500 Cable Controls Work Head Out/ Lower Float Rotor Forward Neutral Transport Head In Lift Rotor Back... -
Page 27: Multipilot Controls
Spearhead TWIGA 500 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 RH - Slew Out... -
Page 28: Operation Warnings
Spearhead TWIGA 500 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 500 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 stop. Avoid high transport speeds, which will cause unnecessary strain on machine and tractor. -
Page 30: Operation
Spearhead TWIGA 500 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 31 Spearhead TWIGA 500 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.
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Page 32: Oil Cooler
Spearhead TWIGA 500 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 33: Head Float
Spearhead TWIGA 500 Head Float 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 34: Arm Float
Spearhead TWIGA 500 Arm Float 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 35: Debris Blower
Spearhead TWIGA 500 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 36: Hydraulic Rear Roller
Spearhead TWIGA 500 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 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 Spearhead TWIGA 500 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 39 Spearhead TWIGA 500 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 40 Spearhead TWIGA 500 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 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.
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Page 42: Quad Saw
Spearhead TWIGA 500 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 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 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 44 Spearhead TWIGA 500 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.
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Page 45: Cutter Bar
Spearhead TWIGA 500 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 46: Forward Reach
Spearhead TWIGA 500 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 47: Service & Maintenance
Spearhead TWIGA 500 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 48: Torque Settings
Spearhead TWIGA 500 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 49: 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 50: Oil Supply
Spearhead TWIGA 500 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 51: Cables
Spearhead TWIGA 500 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 52: Regular Service Chart
Spearhead TWIGA 500 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 53: Trouble Shooting
Spearhead TWIGA 500 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 Belt and pulley condition... - Page 54 Spearhead TWIGA 500 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 55 Spearhead TWIGA 500...
- Page 56 Spearhead TWIGA 500 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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