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Spearhead TWIGA CLASSIC S50, Handbook, Page: 5 / 53

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Spearhead TWIGA CLASSIC S50 Handbook Download Page 5

TWIGA CLASSIC S50 

 

4

 

Service & Maintenance 

 
 

Daily Grease Points   

 

 

 

 

 

           42 

 

Torque Settings 

 

 

 

 

 

 

 

43 

 

Hydraulic Hoses 

 

 

 

 

 

 

 

44 

 

Oil Supply 

 

 

 

 

 

 

 

 

45 

 

Filtration Maintenance 

 

 

 

 

 

 

45 

 

Cables 

 

 

 

 

 

 

 

 

46 

 

Pin & Bushes 

 

 

 

 

 

 

 

46 

 

Storage 

 

 

 

 

 

 

 

 

46 

 

Regular Service Chart 

 

 

 

 

 

 

47 

 

Diagnostics 

 
 

Pump & Motor Failure Prevention  

 

 

 

 

48 

 

Trouble Shooting                                 

 

 

 

 

49 

Summary of Contents for TWIGA CLASSIC S50

Page 1: ...TWIGA CLASSIC S50 0 TWIGA CLASSIC S50 8999134 ...

Page 2: ... Service Department on 01789 491867 Registration Verification Dealer Name Dealer Address Customer Name Date of Warranty Registration Dealer Signature NOTE TO CUSTOMER OWNER Please ensure that the above section has been completed and signed by the selling dealer to verify that your machine has been registered with Spearhead Machinery Limited IMPORTANT During the initial bedding in period of a new m...

Page 3: ...TH BONDED SEALS BSP Setting Metric BSP Setting Metric 1 4 18 Nm 19 mm 1 4 34 Nm 19 mm 3 8 31 Nm 22 mm 3 8 47 Nm 22 mm 1 2 49 Nm 27 mm 1 2 102 Nm 27 mm 5 8 60 Nm 30 mm 5 8 122 Nm 30 mm 3 4 80 Nm 32 mm 3 4 149 Nm 32 mm 1 125 Nm 41 mm 1 203 Nm 41 mm 1 1 4 190 Nm 50 mm 1 1 4 305 Nm 50 mm 1 1 2 250 Nm 55 mm 1 1 2 305 Nm 55 mm 2 420 Nm 70 mm 2 400 Nm 70 mm ...

Page 4: ...hing Your Machine to The Tractor 13 Running up your Machine 17 Removing from the Tractor 18 Hydraulic Proportional PRO PILOT Controls 3SV 19 Electric Proportional PRO PILOT Controls 3SV 19 PRO PILOT Switch Box 20 Cable Controls 21 PILOT Controls 22 Operation Warnings 23 Moving into Transport Position 24 Operation 25 Transport to Work Position 25 Options Oil Cooler 27 Head Float 28 Arm Float 29 Deb...

Page 5: ...tenance Daily Grease Points 42 Torque Settings 43 Hydraulic Hoses 44 Oil Supply 45 Filtration Maintenance 45 Cables 46 Pin Bushes 46 Storage 46 Regular Service Chart 47 Diagnostics Pump Motor Failure Prevention 48 Trouble Shooting 49 ...

Page 6: ...nformation 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 Please ensure that this manual is handed to the operator before using the machine for the first t...

Page 7: ...ht inc Oil Kg 1030 1050 Weight of head Kg 300 300 Min tractor power Hp 70 70 Min tractor weight Kg 2500 2500 Oil tank capacity ltr 200 200 Reach A m 5 0 5 0 Reach B m 4 4 4 4 Reach C m 3 5 3 5 Reach D m 4 5 4 5 Reach E m 5 8 5 8 Forward Reach m 0 6 ...

Page 8: ... guards are properly fitted and there are no damaged or loose parts Particular attention should be given to the flails to ensure they are not damaged cracked or missing Inspect work area for wire steel posts large stones and other dangerous materials and remove before starting work Beware of the danger of overhead power cables The operator must be aware of the maximum height and reach of the machi...

Page 9: ... that are damaged or missing Never allow an inexperienced person to operate the machine without supervision Never use or fit a machine onto a tractor if it doesn t meet the manufacturer s specification Never use a machine if the hydraulic system shows signs of damage Never attempt to detect a hydraulic leak with your hand use a piece of card Never allow children to play on or around the machine at...

Page 10: ...ctricity can flashover when machinery gets close to it WARNING All operators must read the following information and be aware of the risks and dangers involved when working in the vicinity of Overhead Power Lines OHPLs Wherever possible the safest option is always to avoid working in areas close to OHPLs Where unavoidable all operators must perform a risk assessment and implement a safe procedure ...

Page 11: ...areas If doubt exists do not work in the area never risk the safety of yourself or others Emergency Action for Accidents Involving Electricity Never touch an overhead line even if it has been brought down by machinery or has fallen Never assume lines are dead When a machine is in contact with an overhead line electrocution is possible if anyone touches both the machine and the ground Stay in the m...

Page 12: ... in each direction Work should be within 1 mile of the signs Work only when visibility is good and at times of low risk e g NOT during rush hour Vehicles should show an amber flashing light Vehicles should be conspicuously coloured Debris should be removed from the road or path at regular intervals and the operator should wear high visibility clothing Collect all warning signs promptly when the jo...

Page 13: ... to hold the machine firmly Do not operate without checking chains and stabilisers are tight Spearhead particularly recommend turn buckle type stabiliser Set linkage lift rods to an equal length Certain machines require a 12V fused electric supply that is controlled by the tractor s ignition key Spearhead particularly recommend three point linkage of ball end type we do not advise the use of claw ...

Page 14: ... lower stabiliser tubes as they share the same pin 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 3 Fit stabiliser tubes between A frame and stabiliser bracket Ensure the tubes are free to slide do fit locking pins ...

Page 15: ...earance 5 Adjust the top link so that the machine sits vertically 6 Fit locking pins to stabiliser tubes then the linkage can be lowered so that the weight of the machine is taken by the stabilisers It is essential that both tubes are set to equal lengths more than one attempt may be required to achieve the correct height as the machine settles on the stabilisers ...

Page 16: ... is supplied with every machine if additional brackets are required contact your local dealer A 12v 30Amp power supply will be required 8 Ensure the engine is switched off and then fit the P T O shaft If fitting for the first time follow instructions below to cut P T O to length Ensure both sections are cut to equal lengths 9 Remove slew locking pin ...

Page 17: ... view flail head in any operating position Mesh can be retained by springs and clips supplied but it is the operator s responsibility to ensure guarding is firmly in place Warning Avoid raising the tractor linkage once the stabiliser bars are locked in place Always lower the tractor linkage and allow all the weight to be carried by the stabiliser frame Failure to observe this warning will result i...

Page 18: ...full amount of travel check all movements are functioning correctly 5 Place flail head near ground in a safe position and with tractor revs low idle select start position for the flail motor 6 Once rotor is settled slowly increase revs of P T O to 540 R P M and run for a further 5 minutes Slowly reduce revs and then disengage P T O 7 Check all hoses for kinks pinching chafing and leaks 8 Re check ...

Page 19: ...e main assembly to the rear 3 Ensure head float is discharged and turned off 4 The arms must be slewed back into transport position and the locking pin fitted to slew post Fig 1 5 Disengage PTO 6 Slightly raise the lower lift arms with great care to enable the stabiliser locking pins to be removed 7 Lower all weight securely onto parking stands Fig 2 8 Stop engine ensure all weight is off the trac...

Page 20: ...V Head Float Autopilot Cancel Head Crowd LH Head Out RH Head In Head Crowd LH Head In RH Head Out Slew LH Slew In RH Slew Out Slew LH Slew Out RH Slew In Tele LH Tele Out RH Tele In Tele LH Tele In RH Tele Out Head Float On Dipper LH Dipper Out RH Dipper In Dipper LH Dipper In RH Dipper Out Lift Up Lift Down ...

Page 21: ...x The switch box is supplied with a suction pad to allow the box to be mounted to the tractor cab window for ease of reach Spare Autopilot Arm Float Power Indicator Hour Meter Hydraulic Roller Power ON OFF Rotor Auto Reset Spare Reverse Rotor ...

Page 22: ...TWIGA CLASSIC S50 21 Cable Controls Lift Lower Out In Head In Head Out Float Transport Work Rotor Forward Rotor Back Neutral ...

Page 23: ...Head Out RH Head In Head Crowd LH Head In RH Head Out Slew LH Slew In RH Slew Out Slew LH Slew Out RH Slew In Tele LH Tele Out RH Tele In Tele LH Tele In RH Tele Out Head Float On Dipper LH Dipper Out RH Dipper In Dipper LH Dipper In RH Dipper Out Lift Up Lift Down Arm Float On ...

Page 24: ...ll result in severe damage i e greatly increased oil temperature risk of rotor going out of balance as well as reduced machine life and could cause expensive repairs Failure to start and stop the rotor at a low P T O speed or to operate at the correct speed will result very quickly in severe motor and or pump damage Be very careful when operating on sloping ground Never attempt to operate the mach...

Page 25: ... seals and arms 1 Disengage head motor drive Ensure that the lift and head float are discharged and turned off Retract arms to bring flail head approx 1metre from tractor wheel and 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 Taking care slowly lift arms up until they are around...

Page 26: ...bove ground Engaging Head Drive Select 540rpm PTO and run with low engine revs With flail head in safe position switch rotor control to ON Cold start it is important not to run at full speed with cold oil Run at low speed for at least 15 minutes to allow oil to warm up Afterwards slowly increase engine revs to obtain correct PTO speed 540rpm Never attempt to start rotor while under load Disengage ...

Page 27: ...ne from transport to work or any position midway for narrow lane cutting This ram also acts as the break back ram for machine protection should an obstacle be encountered while travelling forward The break back will operate if the machine is overloaded i e a dense patch of vegetation too high a forward speed and when working uphill The tractor must be halted and the flail head manoeuvred around th...

Page 28: ...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 It is essential to keep the radiator clear from debris to ensure a free air flow that will effectively keep the oil cool ...

Page 29: ...Float Place flail head on the ground and switch on head float control operate lever this opens the head ram to tank and allows the ram to float in or out maintaining full contact with the ground automatically Note the rotor must be switched on and running to provide electric supply to the head float To regain manual control switch off by pressing the green rocker switch Warning Do not fold the mac...

Page 30: ...roller This is important as too little weight on the rear roller will leave uncut areas of grass too much weight on the roller will cause scalping in places and increase flail wear and damage We strongly recommend the use of auto reset break back When the head is pushed further out more weight will be applied to the accumulator causing the head to drop reset with control lever As the ground contou...

Page 31: ...ree flow connection i e filler plug Avoid quick release couplings Operating the Debris Blower The fan is suitable for clearing cuttings off the highway we recommend the Blower is used on final cut only and not continually on 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 ...

Page 32: ...tch 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 Note To ensure the roller moves freely it s important to keep the roller linkage clean and lubricated Green Switch ...

Page 33: ...f the green switch will allow angle float without autopilot Autopilot will only operate when the cutting head rear roller is in contact with the ground If the machine is going to be used for long periods of time at hedge cutting it is recommended to remove the Autopilot assembly between the dipper arm and head and replace with standard head bracket Warning To adjust the Autopilot the operator must...

Page 34: ...e opposite switch has risen up the other cam and the switch has made a circuit 7 Remove the fuse mounted in the control panel and start the machine turn on the rotor switch the rotor should not spin and turn on the autopilot The arm should rise if the arm head was fully lowered or drop if the rear roller is off the ground and the 2 switch arms should come to rest in the valley between each cam pea...

Page 35: ...ccordance to the cam position Autopilot When both switches are open the main arm will hold position this is neutral or mid position when they rest in the valley between both cam peaks Slacken this bolt before adjusting the position of cams increase sensitivity by moving the cam peaks together reduce auto pilot sensitivity by moving them apart We recommend the cam plates are flush at the top as sho...

Page 36: ...he spring length is 200mm Bend lever arm of switch to align with the middle of each cam ensure they don t overlap onto the adjacent cam Move the cams apart to increase amount of weight carried on the rear roller thereby reducing the sensitivity of the auto pilot If the cams are too close together the switches will constantly be altering the main arm height causing unnecessary wear and strain on th...

Page 37: ...essary to temporarily lift with the main ram using hydraulic joystick and the red isolator button If you approach larger areas not to be mown i e road junction bridges and crash barriers it will be necessary to switch off the Autopilot enabling you to raise the head from the ground Before switching on the Autopilot please ensure the head is within 300 400mm from the ground Always ensure that the A...

Page 38: ...the ignition key never stop the engine with the PTO engaged Before leaving the tractor cab always ensure that the saw head is firmly on the ground no weight is on the tractors hydraulics and blades have stopped spinning Always check that all guards are properly fitted check there are no damaged or loose parts Always operate the blades at a speed between 3000 3200 R P M Maximum oil pressure of 250 ...

Page 39: ...y 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 The hydraulic hoses must be connected correctly to achieve the correct direction of rotation Drainage hose must be lead directly to the oil reservoir Daily inspect all hydraulic hoses and fittings for damage or leaks When startin...

Page 40: ...ranch In the event of small twigs or debris jamming the saw blades stop the machine immediately and clear the blockage with a suitable tool Ensure there is a skid mounted on the bottom of the saw attachment to protect the lowest blade from striking the ground Warning Take care not bend the blades in storage or during work The blades must be inspected daily for signs for fatigue and cracking do not...

Page 41: ...s and security of all nuts and bolts Sharpen or replace worn or damaged blades and fingers 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 Always ensure the knife guard is in place before transporting machine Always position the arms and cutt...

Page 42: ...ff the ground and at least two metres away from the tractor To operate the arm press rocker switch This will push the head forward Likewise press the rocker switch opposite the head will retract backwards When operating the cutting head close to the tractor extreme care must be taken to avoid contact with the cab Transporting the Forward Reach Never attempt transport position without first fully r...

Page 43: ...TWIGA CLASSIC S50 42 Service and Maintenance Daily grease points TWIGA machine Optional Quad saw Head Rotor Roller Grease 1 2m head every 8 hours 5 10 pumps Optional Autopilot ...

Page 44: ...smantle clean the input drive shaft sliding surfaces and re grease failure to do this will result in serious damage to the gearbox Grease both U J joints every 8 hours Oil Requirements Fill the tank to centre of sight gauge with approximately 220 litres of HD46 or equivalent oil Do not over fill Torque Settings The Torque figures given below are recommended maximum settings only Size Tensile stren...

Page 45: ...at very high pressure when replacing hoses use only genuine hoses a burst hose could be very dangerous When replacing hoses to avoid twisting fitting use two spanners to slacken and tighten Warning Hose is weakened when installed in twisted position Also pressure pulses in twisted hose tend to fatigue wire and loosen fittings Always check the black protective sleeve is in good order to replace sle...

Page 46: ...and is your responsibility to maintain a long reliable working life When tightening fittings always use two spanners when necessary and do not over tighten If a fitting leaks it will need to be replaced Filtration Maintenance The machine is protected by a suction strainer service filter and a low pressure full flow return line filter 1 The suction filter is permanently fixed in the reservoir tank ...

Page 47: ...hine Before storing away thoroughly wash the machine removing all traces of grass and dirt 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 be sure to remove all detergents to avoid any discolouring or damage to paint Grease all grease points until fresh grease shows It is important where possible to store und...

Page 48: ...ak pressures are very easily detected on pump inspection Warranty will not be considered if fault is due to misuse Service Hours Service points Grease Drain Check Clean Change 1 4 hrs Bolts are fully tightened X Condition of flails X Condition of hoses especially for chafing X Flail bolts are fully tightened X Flail head retaining bolts are fully tightened X Gearbox seals If oil is leaking replace...

Page 49: ...TWIGA CLASSIC S50 48 Never cause severe sudden movements to arms Pressure will peak and will transmit back to pump resulting in failure ...

Page 50: ... vibration Flails broken or missing Replace flails Bearings worn or damaged Replace bearings Rotor bend Re balance replace rotor Build up of debris Remove debris Incorrect speed Check rotor R P M Oil tank overheating Oil level incorrect Fill tank to correct level Oil grade incorrect Drain and refill tank with correct grade oil PTO speed too fast Ensure the tractor s PTO speed matches implement Amb...

Page 51: ... housing Check spool is free moving Broken spring in spool valve Check spring Failed ram seals Repair ram Electrically operated valve not responding Faulty wiring Check wiring and switches Dirt in valve Check of ingress of dirt Sticking valve Replace the valve Insufficient voltage Attend to bad connection ...

Page 52: ...TWIGA CLASSIC S50 51 ...

Page 53: ...tershire 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 enquiries spearheadmachinery com ...

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