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a  3  pin  female  connector  is  available  (part  number 

EC2001)  which  can  be  wired  directly  to  the  battery.  

The brown wire is to be connected to the positive (+) 

battery  terminal  and  the  blue  wire  to  the  negative 

terminal  (-).    The  drum  rotation  receiver  box  is  fitted 

with  a  5A  fuse  inside  to  protect  against  electrical 

overload.    Under  no  circumstances  should  the 

electrical  overload  protection  be  bypassed  or  fuses 

with  a  rating  exceeding  5  amps  be  used. 

Warranty 

will be invalidated if this occurs. 

 

8.0  FITTING THE MACHINE ONTO THE TRACTOR 

 

Unbolt  the  round  metal  guard  from  the  front  of  the 

main shaft bearing housing and fit the slip clutch end 

of the PTO shaft onto the machine. Ensure the clamp 

bolts  are  tightened  fully,  check  that  there  is  no  free 

play on the splines of the shaft otherwise damage will 

occur. Refit the metal guard. 
 

These  bale  shredders  are  designed  for  use  either  on 

the  normal category  2,  3  point  linkage or on a 'Quick 

Hitch  A  Frame'.    If  the  3  point  linkage  is  to  be  used, 

the  implement  lifting  frame  and  the  adjustable  upper 

link should both be in the lower positions.  The upper 

position  should  be  used  where  the  machine  is  to  be 

mounted  on  an  A  Frame.  These  two  positions  take 

into account the height of the A Frame. 
 

Fit  the  machine  onto  the  tractor  in  the  usual  manner 

and  fit  the  stabilisers  or  tighten  the  check  chains.         

Using  the  multi-hole  tie  bar  at  the  top  of  the  lifting 

frame,  angle  the  frame  such  that  it  is  vertical,  or    

leaning away from the tractor.  The top link pin should 

be  in  the  lower  of  the  two  holes  at  this  stage.    The      

angle  of  the  machine  may  be  adjusted  in  use  to  give 

the  required  feed  rate.    A  steeply  sloping  drum  will 

generally  produce a faster feed and  vice  versa.   This 

adjustment  is  greatly  facilitated  by  the  use  of  a        

hydraulic top link. 
 

Fit the PTO shaft and with 'Position Control' selected, 

lift  the  machine  fully  on  the  linkage,  continuously 

checking  that  the  PTO  shaft  does  not  come  to  within 

25 mm. (1 inch) of bottoming. With the shaft in its most 

extended  position,  there  should  not  be  less  than  half 

of  the  original  overlap  between  the  sliding  members.  

If  necessary,  cut  the  PTO  shaft  to  the  correct  length.  

If  a  hydraulic  top  link  is  used,  check  the  PTO  for     

bottoming  throughout  the  full  range  of  adjustment  of 

the top link.   
 

Connect  the  hydraulic  hoses  into  the  spool  valve    

connections of the tractor. The connections and valve 

operation  must  be  such  that  the  drum  rotates  in  an   

anticlockwise  direction  when  viewed  from  the  rear.  

This ensures that a) the belt drive operates safely and 

effectively  and  that  b)  the  bale  is  fed  into  the  rotor  in 

the correct manner.  
 

In  use,  the  drum  rotates,  feeding  the  bale  into  the    

rotating  blades.    The  output  (and  power  requirement) 

can  be  increased  by  tilting  the  machine  forwards 

slightly,  thereby  increasing  the  pressure  of  the  bale 

against the blades. 
 

It  is  essential  to  get  the  relationship  between  the    

tractor  PTO  shaft  and  the  Tomahawk  splined  shaft 

correct to give a satisfactory PTO shaft life. 

Fig. 4 Correct PTO Geometry 

 

The correct geometry exists when the  angle between 

the tractor shaft and the PTO shaft is the same as the 

angle  between    the  Tomahawk  splined  shaft  and  the 

PTO shaft (see Fig. 4).  Any significant deviation from  

this  situation  will  adversely  affect  the  life  of  the  drive 

line and may cause the machine to vibrate. 
 

The geometry will vary from one tractor to another but 

the  basic  layout  is  obtained  by  adjusting  the  angle  of 

tilt using linkage geometry and height of lift.  Once the 

correct top link lengths/ positions/working heights have 

been established for a particular tractor, these should 

always be used when the machine is shredding. 
 

9.0  OPERATION 

 

The  Tomahawk  will  shred  string,  but  putting  twine  or 

netwrap through the machine is not recommended as 

it will eventually  be spread on the land and pollute the 

next crop of silage or hay. The strings or net should be 

removed  from  the  bale  as  it  is  being  loaded  into  the 

machine. 
 

Bales  can  be  loaded  into  the  machine  in  two  ways,  

using a loader or by hand.  If a loader is used, simply 

load the bale into the drum such that it is fully inserted, 

but  without  ramming  it  against  the  end  plate.    It  may 

also be possible to load straw bales by hand with the 

machine lowered onto the ground. 
 

9.1    Silage 

(

4040,  4040XL,  5050,  5050XL  models 

only

 

Minor  adjustments  to  the  machine  are  required  when 

switching  from  silage  to  straw  and  vice  versa  as     

outlined below. 
 

Place the locking pin across underneath the end of the 

lower  flap.    This  prevents  the  lower  on/off  flap  from   

being forced open by the pressure of the silage. 
 

Remove  or  fully  hinge  down  the  straw  plate  in  the 

base  of  the  right  hand  chute.    It  is  essential  that  the 

base  of  the  silage  delivery  chute  slopes  steeply  to  

prevent blockage.  If silage is to be discharged via the 

giraffe chute, open the  blanking disc at the front of the 

machine by slackening the two wing nuts and sliding it 

fully  towards  the  tractor  (see  Fig.  5).    This  will  allow 

more  air  into  the  rotor  and  ensure  a  more  positive      

delivery. 

Summary of Contents for 30437

Page 1: ......

Page 2: ...cate Monthly 8 Belt tensioner pivot Single greasing point Monthly 9 Flap operating linkage Lubricate Monthly 10 Hydraulic cylinder pivots on hydraulic deflectors if fitted Two greasing points Monthly 11 Extended drum support roller pivot if fitted Single greasing point Monthly For more detailed information see maintenance section 10 9 4 2 3 6 1 5 7 9 50 Hours Note Use good quality semi solid greas...

Page 3: ...ential Health and Safety requirements of EEC Directive 2006 42 EC 2004 108 EC To effect correct application of the essential Health and Safety requirements stated in the EEC Directives the following harmonised standards were consulted BS EN ISO 12100 1 BS EN ISO 12100 2 BS EN ISO 13857 2008 Signed Duncan Wilson Engineering Director Dated 8th August 2017 Person authorised to compile Technical File ...

Page 4: ...enance of equipment and machines This handbook forms part of that instruction and it must be read and understood before fitting the machine onto the tractor or attempting to use it Your supplier is responsible for carrying out any necessary pre delivery inspection fitting the machine onto the tractor and test running The supplier must also give instruction in the safe use maintenance and adjustmen...

Page 5: ...emoval 8 11 5 Drum mountings 8 11 6 Screen replacement 404M 505M only 8 11 7 Rotor removal 9 11 8 PTO shaft 9 11 9 PTO slip clutch 9 11 10 Drum drive belt adjustment 9 11 11 Booster fan pump drive belt adjustment 9 11 12 Hydraulic circuit 9 10 11 13 Hydraulic oil reservoir 10 11 14 Hydraulic oil change and suction filter 10 11 15 Return filter 10 11 16 Hose Inspection 10 11 17 Hydraulic valve and ...

Page 6: ... 811kg 970kg 877kg Minimum tractor power requirement 37kW 45kW 37kW 45kW Sound power level 93db A 93db A 93db A 93db A 1 0 SPECFICIATIONS Heights listed are with the machine on the ground When operating these heights can be increased by up to 1m depending on the tractor to which the machine is attached 2 1 1 Basic machine specifications Specifications Overall machine width 2 82 m Minimum tractor p...

Page 7: ...2 0 EXPLANTAION OF PICTOGRAMS 3 Allow rotor to stop before removing blockage with tool provided Please read instruction book before using the machine Blockage removal tool ...

Page 8: ... filters to EN 143 are likely to be adequate 3 11 NOTE If a hydraulic top link is used ensure that the top of the Tomahawk is clear of the cab with the machine fully raised and the top link in the fully contracted position 3 12 NOTE When lifting the machine on the three point linkage always check the clearance between the upper front of the Tomahawk and the rear of the cab particularly the window ...

Page 9: ...ck hitch system if the optional castor wheels are fitted The normal 3 point linkage system must be used if castor wheels are attached to the machine The machine is designed to use the standard 540 R P M PTO shaft However speeds of up to 1000 R P M may be used if specific circumstances necessitate this The higher speed will cause an increase in power consumption The Tomahawk uses the tractor hydrau...

Page 10: ...he drum rotates in an anticlockwise direction when viewed from the rear This ensures that a the belt drive operates safely and effectively and that b the bale is fed into the rotor in the correct manner In use the drum rotates feeding the bale into the rotating blades The output and power requirement can be increased by tilting the machine forwards slightly thereby increasing the pressure of the b...

Page 11: ...Refer to Maintenance for the correct clutch setting 9 3 Booster fan Ensure the power supply cables for the oil cooler and remote drum rotation kit are connected to the tractor If a flexible duct is fitted to the fan outlet ensure that it is sensibly routed with no sharp turns or kinks Always attempt to create as straight a route as possible for the ducting to improve material flow Make sure that t...

Page 12: ...e control knob at the base of the oil cooler Turning the knob in a clockwise direction reduces fan speed Should oil temperature increase to 45 degrees Celsius the oil cooler will automatically begin to operate The cooler will automatically reverse for a short time every fifteen minutes to keep the cooler screen clear of debris To stop fan operation reduce PTO speed gradually and when at idle disen...

Page 13: ...t by means of an adjuster attached to the motor bracket If the belts slip persistently check that the drum is not fouling on the back plate If the belts turn over in their grooves or appear to run out of alignment the position of the motor pulleys should be adjusted by means of the large nuts on the threaded pivot shaft 11 11 Booster fan pump drive belt adjustment WARNING Never attempt to tension ...

Page 14: ...he 10 system to damage The filter should be replaced when the indicator on the gauge fitted to the top cover reads 1 4 bar the top of the green section on the gauge To replace the element remove the 3 screws holding the top cover onto the filter body there is a spring underneath the cover holding the filter in place Remove the cover and withdraw the filter element Fit the new filter element into t...

Page 15: ...pes of material see Fig 2 b A straw chute suitable for dry materials where a greater discharge height distance is required see Fig 3 Included in both kits are the deflector on off flap and operating linkage In the event of the Giraffe Chute being removed the machine must not be operated without the blanking plate being bolted securely in place The flap pivot bar and operating linkage should not be...

Page 16: ...Hammers blades worn 404M 505M Sharpen or replace blades Tilt drum at steeper angle shorten toplink Increase oil flow rate from tractor to Tomahawk Rotate drum in correct direction Fit more bale grippers in drum Check slip clutch on PTO is not slipping Ensure PTO is rotating at correct operating speed Remove bale grippers if fitted Peel a layer off outside of bale before loading in drum Turn or rep...

Page 17: ...wn Cooler screen blocked with debris Cooler temperature sensor failed Connect cooler power supply cable to tractor Replace fuse Clear cooler screen Replace temperature sensor Excessive vibration Fan out of balance Fan blades damaged Fan housing bearings failing Fan must be dynamically balanced Investigate fan condition Investigate condition of fan housing bearings Drum will not turn No oil flow fr...

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