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Summary of Contents for Spearhead TWIGA 320
- Page 1 Spearhead TWIGA 320/420 TWIGA Reach Mower 320/420 Edition 1.0 – October 2011 Part No. 8999059 0 0 0 0...
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Page 2: Spearhead Twiga
Conforming to E Machinery Machinery Directive Directive 2006/42 2006/42/ / / / EC 2006/42 2006/42 We, Spearhead Machinery Ltd, Green View, Salford Priors, Evesham, Worcestershire, WR11 8SW hereby declare that: Product Product Product Product ……………………………………………..………………………… Product Code Product Code Product Code Product Code ……………………………………………..…………………………... -
Page 3: Table Of Contents
Spearhead TWIGA 320/420 Contents Contents Contents Contents Introduction Specification Safety Safety Stickers Installing your Machine Installing your Machine Installing your Machine Installing your Machine Tractor Requirements Attaching To The Tractor Running Up Your Machine Removing From The Tractor Layout Of Controls In The Cab... -
Page 4: Introduction
Spearhead TWIGA 320/420 Introduction Introduction Introduction 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 5: Specification
Spearhead TWIGA 320/420 Specification Specification Specification Specification Weight inc. Oil (Kg) 1350 1370 Weight of head (Kg) Tractor horse power 1300 2000 Min. tractor weight (Kg) Oil tank capacity (ltr) Reach A (m) Reach B (m) Reach C (m) Reach D (m) -
Page 6: Safety
Spearhead TWIGA 320/420 Safety Safety Recommendations Safety Recommendations Safety Recommendations 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 •... - Page 7 Spearhead TWIGA 320/420 • Ensure that the tractor meets the minimum weight recommendations of the machine manufacturer and that ballast is used if necessary • Check that machine fittings and couplings are in good condition • 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.
- Page 8 Training Training 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.
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Page 9: Safety Stickers
Spearhead TWIGA 320/420 Safety Stickers Safety Stickers Safety Stickers Safety Stickers Warning Warning Stay clear of mower blade Shut off engine and remove as long as engine is key before performing running. maintenance or repair work. Warning Warning Danger – flying objects... -
Page 10: Tractor Requirements
• Spearhead particularly recommend “Category 1” 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 To The Tractor
Attaching/un-attaching the reach mower to/from the tractor. The following text must be fully understood before attempting to attach the machine. 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. - Page 12 Spearhead TWIGA 320/420 Fit control unit to cab - recommend mounting the control unit to the head side of the tractor. Modification and additional bracket may need to be fabricated. Consult your local dealer for advice. An electric 12 volt supply cable will be needed from a fused source which is controlled by the tractor’s ignition key for...
- Page 13 Spearhead TWIGA 320/420 Correct top link length until the main frame is vertical. If fitting the P.T.O. shaft for the first time, measure and cut to the correct length. Fit the P.T.O. shaft by connecting the tractor output shaft to the machine input shaft.
- Page 14 Spearhead TWIGA 320/420 Operate the main arm to bring the frame horizontal by applying the head weight to the ground. Check the machine is at the correct height and level; ensure both stabilisers are at an equal length. Once the stabilising bars are correctly fitted, lower the tractor hydraulics allowing all the weight of the machine to be carried by the stabiliser bars.
- Page 15 Spearhead TWIGA 320/420 Fold up parking stands and store safely. The machine cannot be unhitched without these stands down. Operator’s guard – Use only tractors with safety glass windows. If the windows are not laminated safety glass, polycarbonate glazing must be fitted between operator and cab meshing.
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Page 16: Running Up Your Machine
Spearhead TWIGA 320/420 Running Up Your Machine Running Up Your Machine Running Up Your Machine Running Up Your Machine First ensure the rotor is in the ‘off’ position and P.T.O. drive is disengaged, and then start the tractor. 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 17: Removing From The Tractor
Spearhead TWIGA 320/420 Removing From The Tractor Removing From The Tractor Removing From The Tractor Removing From The Tractor Select a level firm site such as a concreted surface Fit parking stands. Place the flail head on the ground approximately 1m out from machine main assembly Disengage P.T.O. -
Page 18: Layout Of Controls In The Cab
Spearhead TWIGA 320/420 Layout Of Controls In The Cab Layout Of Controls In The Cab Layout Of Controls In The Cab Layout Of Controls In The Cab Electric Control Cable controls MAIN ARM UP AND DOWN DIPPER ARM IN AND OUT... -
Page 19: Reach Mower Set-Up
Spearhead TWIGA 320/420 Flail Head Flail Head Flail Head Flail Head Fitted with a choice of flails, • Scoop flails for cutting and mulching green vegetation, mowing grass only for a clean finish. • Back to back flails for cutting and mulching green vegetation, ideal or mowing grass and light scrub. - Page 20 Spearhead TWIGA 320/420 Grass Cutting Grass Cutting Grass Cutting Grass Cutting Set rear roller down to control cutting height. Close down the adjustable front hood to reduce flying debris to a minimum. Warning Warning Warning Warning Never remove Do not operate...
- Page 21 Spearhead TWIGA 320/420 Hedge Trimming Hedge Trimming Hedge Trimming Hedge Trimming Recommended Recommended Recommended Recommended S S S S et et et et- - - - U U U U p p p p 0.9m rotor 4” Rear roller “Boot” flails...
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Page 22: Warnings
Spearhead TWIGA 320/420 Warnings Warnings Warnings 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 23: Engaging & Disengaging Head Drive
Spearhead TWIGA 320/420 Engaging Flail Head Drive Engaging Flail Head Drive Engaging Flail Head Drive Engaging Flail Head Drive 1. Select 540rpm P.T.O. and run with low engine revs. 2. With flail head in safe position move rotor control lever (5) to ‘on’. -
Page 24: Transport To Work Position
Spearhead TWIGA 320/420 Safety Safety Safety Safety • When cutting material take care as the branches may fall towards the tractor, always using appropriate guarding on cab glass. • Never attempt to unblock a jammed knife by hand, always use a suitable tool. -
Page 25: Moving Into Transport Position
Spearhead TWIGA 320/420 Slowly operate dipper arm towards stop on main arm until fully closed. Fully raise main arm, and slowly close head ram. Finally disengage P.T.O. drive. Warning Avoid high transport speeds, which will cause unnecessary strain on Machine and tractor. -
Page 26: Cutting Sequence
Spearhead TWIGA 320/420 Cutting Sequence For Cutter Bar Cutting Sequence For Cutter Bar Cutting Sequence For Cutter Bar Cutting Sequence For Cutter Bar Cut field side and bottom of hedge first Cutting hedge from roadside Warning Never operate with flail Rotor facing towards the Tractor. -
Page 27: Wire Trap
Spearhead TWIGA 320/420 Wire Trap Wire Trap Wire Trap Wire Trap • This is located under the front hood. It must not be interfered with in any way. • Any wire must be removed immediately • Select Rotor control lever to ‘off’ and wait until rotor stops spinning. Lower rotor to ground, disengage P.T.O. -
Page 28: Debris Blower
Spearhead TWIGA 320/420 Debris Blower Debris Blower Debris Blower Debris Blower Hydraulically driven fan from tractor external services please quote tractor oil flow when Excel 323 ordering maximum 40lt per min. The return oil must go to a free flow connection i.e. filler plug. -
Page 29: Lubrication Chart
Spearhead TWIGA 320/420 All the following grease points Need to be greased daily. Lubrication Chart Lubrication Chart Lubrication Chart Lubrication Chart Rotor shaft bearings P.t.o. shaft bearings P.t.o. shaft tubes Pivot pins Roller bearings Oil tank Gearbox Motor drive Flail head... -
Page 30: Torque Settings
Spearhead TWIGA 320/420 Grea ea ea easing/Lubrication sing/Lubrication sing/Lubrication sing/Lubrication 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 31: 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 32: Oil Supply
Spearhead TWIGA 320/420 Oil Supply Oil Supply Oil Supply 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 33: Flail Head
Spearhead TWIGA 320/420 Flail Head Flail Head Flail Head Flail Head • Grease all bearings daily. • Check there is no wrapping of string, plastic, grass or other debris on rotor shaft and rear roller bearings • Check the condition of flails and ensure all retaining bolts are tight. When flails are replaced care must be taken to maintain balance of rotor shaft, do not change to a different type. -
Page 34: Pins & Bushes
Pins & Bushes 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 35 Spearhead TWIGA 320/420 Pump & Pump & Pump & Pump & M M M M otor otor otor otor F F F F ailure ailure ailure ailure Care & Attention Care & Attention Care & Attention Care & Attention Adhere to the following points:...
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Page 36: 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. -
Page 37: 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. - Page 38 Spearhead TWIGA 320/420...
- Page 39 Spearhead TWIGA 320/420 Spearhead Machinery Ltd Green View Salford Priors Evesham Worcestershire WR11 8SW Tel: 01789 491860 Fax: 01789 778683 www.spearheadmachinery.com enquiries@spearheadmachinery.com...
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