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Spearhead

 

Multicut 

460

 

 

23

 

 

Trouble Shooting Guide 

 
 

Broken or damaged blades 

1. 

Raise cutting height to avoid  

 

striking the ground 

2. 

Remove or avoid obstacles  

 

such as rocks 

3.

 

Check rotor speed 

4. 

Ensure a steady feed into drive  

 

(Do not snatch the PTO) 

5.

 

Fit optional stump jumpers

 

 

Damaged blade holder 

1. 

As above 

2.

 

Failure to keep tight centre  

 

retaining nut 

 

Damage gearboxes 

1. 

Seized slip clutch. 

2. 

Telescopic shafts bottoming out 

3. 

Engaging drive with too much  

 

power / revs 

4. 

Lack of grease on sliding tubes  

 

of drive shaft

 

 

Damage to PTO shaft 

1. 

Seized slip clutch 

2. 

Telescopic tube bottoming out 

3. 

Engaging drive with too much  

 

power / revs 

4. 

Turning too sharp 

5. 

Not enough overlap 

6. 

Lack of grease 

7. 

Build up of Debris under drive  

 

shaft

 

 

Gearbox overheating 

1. 

Incorrect oil level 

2. 

Incorrect grade of oil 

3. 

Incorrect operating speed 

4.

 

Machine overloaded 

5. 

Rubbish around the gearbox  

 

reducing air circulation

 

Slip clutches overheating 

1. 

Machine overloaded 

2. 

Incorrect operating speed 

3. 

Incorrect setting 

4. 

Blades hitting the ground 

 

Oil leak from gearbox 

1. 

Damaged shaft seal check for  

 

 

foreign matter (wire-string) 

2. 

Faulty breather 

3. 

Damaged gasket 

4. 

Incorrect oil level 

 

Metal fatigue on frame 

1. 

Too fast a traveling / operating  

 

 

speed for conditions 

2. 

Wings not floating i.e. following  

 

 

the ground contours (check tractor spool) 

3. 

Used in a manner or condition  

 

 

contra to its intended purpose 

 

Excessive skid wear

 

1. 

Set skids above the ground

 

Summary of Contents for MULTICUT 460

Page 1: ...Spearhead Multicut 460 1 MULTICUT 460 11th Edition October 2013 Part No 8999007...

Page 2: ...hine it relates to please contact the After Sales Department for advice Spearhead Machinery Limited 2004 Please ensure that this manual is handed to the operator before using the machine for the first...

Page 3: ...007 Safety of Machinery Risk Assessment Part 1 Principles Part 2 Practical Guide and Examples of Methods BS EN ISO 12100 1 2010 Safety of Machinery Part 1 Basic Terminology and Methodology Part 2 Tech...

Page 4: ...ing To The Tractor 8 Setting Up Your Machine 10 Operation 12 Transportation 13 Machine Protection 14 Servicing Maintenance Safety First 15 Daily 16 Every 8 Hours 17 Torque Settings 17 Regularly 18 Bla...

Page 5: ...ong as the engine is running Warning Stay clear of mower blade as long as engine is running Warning Stay clear of swinging area of implements Warning Shut off engine and remove key before performing m...

Page 6: ...no damaged or loose parts Particular attention should be given to the blades to ensure they are not damaged cracked or missing Inspect work area for wire steel posts large stones and other dangerous...

Page 7: ...tion 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...

Page 8: ...P T O Two external hydraulic services are required single acting for height control and single acting for wings with float facility Attaching To The Tractor It is essential to ensure that the tractor...

Page 9: ...rd tubes equally Fig 1 Shorten the inner and outer sliding profiles by the same length as the guard tubes File all sharp edges and remove burrs Grease sliding profiles To fit the PTO first clean and g...

Page 10: ...re necessary to compensate for wear and also variation of tolerances We recommend the wings are set 12 25mm 1 higher then the centre chassis to maintain a level cut 2 Coarse adjustment is made via the...

Page 11: ...er the machine by the hydraulic ram when the machine is in operation Use the height gauge as a guide when setting height of cut Wings Unfolding the wings if the machine is in the transport position fi...

Page 12: ...ilst operating it is possible to continue working when turning as the 460 Rotary Cutter is fitted with a wide angle joint on PTO shaft However take care not to run the rear tractor wheel against the m...

Page 13: ...commend for straw Transportation First disengage the PTO drive and raise the machine fold the wings fully upright and secure with locking pin Fig 7 Never transport along public highways with the wings...

Page 14: ...The clutch settings should not be altered without reference to Service and Maintenance Never over tighten the pressure springs on the slip clutches Fig 8 as this could result in severe damage to the g...

Page 15: ...carried out in order not to invalidate your warranty these are carried out before the first operation after the first hour then after 4 hours These checks are 1 Wheel nuts and tyre pressure 40psi 2 Ge...

Page 16: ...ck tyre pressures 40 P S I Check gearbox oil replenish with EP90 gear oil as necessary to the correct level line on the dipsticks provided with each gearbox Fig 9 Greasing points A Rear axle pivot poi...

Page 17: ...rrect Torque Fig 11 Torque Settings The Torque figures given below are recommended maximum settings only Size Tensile strength Description Torque setting Nm M16 8 8 Gearbox bolts 280 M16 8 8 Axle clam...

Page 18: ...carrying out maintenance work on or near the blades be careful of free swinging blades over centering and falling It is recommended that protective clothing including hardhat and goggles are worn The...

Page 19: ...and reset spring compression to original height before use Should the assembly overheat due to frequent or prolonged clutch slipping dismantle for inspection The original thickness of the lining is 3...

Page 20: ...he spring turn the clutch while holding the P T O to ensure hub is not seized to linings Clutch settings below are for reference only Measured spring lengths should be used first Position Part No Sett...

Page 21: ...which are painted red for danger when removing the wheel The outer nuts must not be loosened until the valve has been removed and the inner tube is entirely deflated Then and only then may the outer b...

Page 22: ...remove all traces of rust on the metal clutch plates Check condition of the friction plates if there is any sign of over heating wear or cracking replace with new Do not attempt to use the machine wit...

Page 23: ...oo much power revs 4 Turning too sharp 5 Not enough overlap 6 Lack of grease 7 Build up of Debris under drive shaft Gearbox overheating 1 Incorrect oil level 2 Incorrect grade of oil 3 Incorrect opera...

Page 24: ...s top links ball ends unless there is a manufacturing or material defect or the cost of normal servicing items such as oils and lubricants 5 This warranty does not cover any expenses or losses incurre...

Page 25: ...versary of the date of sale and the Service Report form must have been completed and stamped by the servicing dealer or Spearhead Service Engineer and sent to Spearhead within 14 days after the first...

Page 26: ...Spearhead Multicut 460 26...

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