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The  mode  is  switched  by  repeatedly  pressing  the 

automatic bale chamber control button.  
However  the  optimum  setting  will  vary  depending  on 

material moisture content and density. 
As  the  milled  material  builds  up  beneath  the  conveyor 

discharge  point  it  may  be  necessary  to  stop  milling  and 

reposition the machine if the material can not be moved 

away by the loading vehicle. 

When  it  is  necessary  to  stop  milling  part  way 

through  a  bale,  always  stop  the  bale  chamber 

rotation  and  put  it  in  reverse  for  a  few  seconds 

before stopping the mill rotor.  This allows the material in 

the  area  around  the  mill  rotor  to  be  removed  by  the 

conveyor.    Failure  to  do  this  may  result  in  a  blockage 

when the machine is re-started. 
To  stop  the  machine  without  the  control  desk  press  the 

auxiliary stop button on the side of the machine, this will 

first stop the bale chamber rotation.  After a short delay to 

make  sure  the  material  is  removed  from  the  mill  rotor 

housing  the  conveyor  will  stop.    The  mill  rotor  will  then 

have to be stopped by disengaging the PTO drive in the 

tractor driving the machine. 
Occasionally materials may lodge against the side of the 

bale  chamber  and  not  feed  down  into  the  mill.    If  this 

occurs reverse the rotation of the bale chamber for 1 to 2 

turns to dislodge the material and restart milling. 

10.6 Blockage Removal

 

Never begin to unblock a machine until the PTO has 

been  disengaged,  the  engine  stopped  with  the  key 

removed  from  the  ignition,  and  the  machine  has 

come to rest.   Whilst power is connected to the machine 

the red beacon will remain flashing until the rotor comes 

to rest. 
Should  the  mill  rotor  and  housing  become  blocked,  first 

remove any material on the conveyor below the screen.  

A  short  reverse  rotation  of  the  bale  chamber  is 

recommended before attempting to restart the mill rotor. 
Further access may be gained by removing the screen to 

gain access to the rotor or by entering the bale chamber 

to clear material from around the mill rotor. 

10.7 Folding for Transport 

Before folding the conveyor for transport ensure the 

bale chamber is positioned so that the rubber stops 

on the conveyor sit on the support pads on the bale 

chamber.  Arrows  on  the  front  of  the  bale  chamber  and 

chain drive guard indicate this position. 

11.0 MACHINE PROTECTION DEVICES 
IMPORTANT:

 The machine is fitted with a shear bolt on 

the  PTO shaft connecting the tractor to  the machine.   If 

the PTO shaft is engaged harshly or after a blockage, the 

shear  bolt  may  fail  and  require  replacement.  See 

paragraph 12.7 in the maintenance section. 

Shearbolt     

Grade 10.9 

Bolt M12 x 55mm

 

12.0 MAINTENANCE 
12.1 Safety 

Never open the guards surrounding the driveline or 

enter  the  bale  chamber  unless  the  PTO  has  been 

disengaged, the engine has been stopped, the key 

removed and the machine come to rest.   Whilst power is 

connected  to  the  machine  the  red  beacon  will  remain 

flashing until the rotor comes to rest. 

The mill rotor  will take approximately  2 minutes to 

come to rest from operating speed. 

12.2 Lubrication and regular maintenance. 

A  regular  visual  inspection  of  the  mill  for  parts  showing 

any  excessive  wear  is  recommended.    Parts  requiring 

particular attention are the hammers/blades for wear and 

elongation  of  the    pivot  hole.    Also  check  the  pivot  rod 

retaining pins are in place and there is no excessive wear 

on the rods.  The holes for the hammer pivot rods in the 

discs of the mill rotor should be inspected for elongation 

and wear. 
Good quality semi-solid grease should be applied to the 

grease points as shown on the relevant lubrication chart 

on page 2.   
The frequencies stated are hours of use. 
Other maintenance points are shown in table 3 below 
Table 3 Quick reference maintenance table 

12.3 Wheel Changing 

Serious  accidents,  including  fatalities,  have  been 

caused  by  unsafe  practices  during  wheel/tyre 

changing and when inflating tyres.   

When using jacks to lift or support the machine: 
a) 

Use a jack capable of lifting 3 Tonnes for lifting the 

machine.  The jack should have a minimum height 

of  470  mm  and  be  able  to  extend  to  a  length  of 

520 mm; 

b) 

Use the jacking point identified in the figure 3; 

c) 

Position axle stands to give additional support; 

d) 

Apply the handbrake to prevent movement. 

10 

Greasing  

See separate chart on page 2 

Hydraulic oil 

Check oil level daily 

Oil Cooler 

Check / clean cooler screen 

fins daily 

Return line filter 

Check gauge weekly 

Bale chamber 

chain tension 

After first day then  

weekly depending on use 

Mill rotor belt 

tension 

Weekly 

Hydraulic pump 

drive belt tension 

Monthly, depending on use 

Tyre pressures & 

wheel nuts 

Weekly 

Hydraulic oil 

Analysis of oil condition 

annually 

120 - 150 (160-200) 

104 - 120 (140 -160) 

 90 - 104 (120 -140) 

Mode 

Tractor power kW (hp) 

Summary of Contents for Tomahawk C12

Page 1: ......

Page 2: ...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 standard...

Page 3: ...ty Regulations and therefore poses no significant hazard to health when properly used Nevertheless in the interests of all concerned it is essential that equipment of our manufacture is used in accord...

Page 4: ...c highway 6 7 Preparation of the machine 6 8 Preparation of the tractor 7 9 Fitting the machine onto the tractor 7 10 Operating instructions loading 9 10 Operating instructions discharge 9 11 Machine...

Page 5: ...ive sprocket upper bearing 11 Bale chamber tensioner pivot 12 Bale chamber tensioner boss 13 PTO shaft cross journals guard bearings sliding members 14 Bale chamber support rollers 15 Conveyor belt su...

Page 6: ...of the bale to be loaded at one time 1 3m x 1 2m x 2 5m Maximum round bale size 1 8m Tyre size 385 55 R22 5 Wheel track 2 0 m Wheel load rating 4 500 Kg per wheel Wheel speed rating 25mph 40km h Weigh...

Page 7: ...ear Tractor Control Desk Panel Maximum hydraulic circuit pressure Safety decals fitted to the machine provide important and useful information that will help make sure the machine is operated safely I...

Page 8: ...g hazard keep clear Bale Chamber Alignment Arrow DL1052 red DL1442 yellow Grease Decal Every 20 Hrs Grease Decal Every 50 Hrs Grease Labelling Grease Labelling Grease Labelling Jack Information Label...

Page 9: ...ydraulic hoses always make sure the conveyor is fully folded over the bale chamber to avoid residual pressure in the hoses 3 14 When changing a wheel make sure that the machine is on firm level ground...

Page 10: ...t power up and the Bluetooth connection LED will not illuminate If the fuse on the power lead to the machine should blow it will be indicated by the red LED illuminating on the in line fuse holder The...

Page 11: ...e conveyor Make sure the conveyor is straight lowered before running 9 4 Programming Electronic Controls Before adjusting the settings for the rotational speed of the bale chamber it will be necessary...

Page 12: ...he machine is not recommended particularly where the milled material is being fed to animals It is recommended that string or netwrap is removed from the bales on the ground and then the material to b...

Page 13: ...osition 11 0 MACHINE PROTECTION DEVICES IMPORTANT The machine is fitted with a shear bolt on the PTO shaft connecting the tractor to the machine If the PTO shaft is engaged harshly or after a blockage...

Page 14: ...not reach the end of their travel and fail to apply the brakes To do this safely jack up one side of the axle until the wheel is clear of the ground Turn the adjusting nut on the brake lever clockwise...

Page 15: ...en replacement Never attempt to remove the screen unless the PTO has been disengaged the engine has been stopped the key removed and the machine come to rest Whilst power is connected to the machine t...

Page 16: ...pivot rod mounting holes in the support discs of the mill rotor for elongation and wear The pivot rod should also be inspected for wear if lightly worn it can be installed with the hammers in a diffe...

Page 17: ...t s fully slack position Lift the belt and remove the pin from the joint Pull the belt from the conveyor frame Reassembly is the reverse of the above procedure 12 16 Hydraulic Circuit Never attempt to...

Page 18: ...the cone 13 OPTIONAL EXTRAS 13 1 Screen Sizes There are 6 different screen sizes available 100 75 60 40 30 20mm for milling straw For information regarding milling grain please contact the head offic...

Page 19: ...in has come off sprockets Check sprocket condition fit the chain and tension it Bale chamber chain broken Check sprocket condition and replace chain Bale chamber chain is slipping Check tension of bot...

Page 20: ...sk turned off faulty Ensure control desk is on and connected See solutions in control desk section above Auxiliary stop button depressed Release stop button Material jamming conveyor Visually inspect...

Page 21: ...nal pressure in valve Clamping bolts loose Check bolts through valve tightened to correct torque specified in the maintenance section Separation of slices in valve block as a result of reverse oil flo...

Page 22: ...19 Rotor Hammer Layout...

Page 23: ...Notes...

Page 24: ......

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