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ENGLISH 

15 – Replacing the hoes 

 

Working the soil determines a gradual consumption of the hoes.  
When  the  hoes  have  become  a  length  of  8  cm,  they  must  be  replaced.  Using  the  implement  with 
tools of a length less than 8 cm may cause a reduction of the tillage quality and increase the risk of 
clamping and damages to the milling group. 

 

 

When replacing the hoes, the implement must be disconnected from the loader. 
Never let yourself or any part of your body get underneath the implement while it is 
raised by the loader. 
Lay the implement flat, on a smooth and stable surface with a suitable capacity. 

 

15.1 Positioning the implement

 

 

1)  Disassemble the implement from the loader (see  procedure in  point 1 of paragrapf 5 on pag. 12) 

and  detach  the  implement  from  the  loader  by  following  the  inverse  sense  of  the  assembly 
procedure found under paragraph 7 on page 16.  

2)  Disassemble the roller group (or the optional seeder unit) and the roller adjuster. 
3)  Disassemble the side protections (Fig. 28 – Ref. A). 
4)  Lay down the implement and lean it on the rear part of its sides  (fig. 29). 
 

 

WARNING:  The  hoe  area  is  dangerous  (Fig.  29).  During  these  operations,  position 
yourself  firmly  and  securely  and  make  sure  that  your  face  and  your  body  will  not  be 
pressed against the hoes. 

 Do not allow people or animals to approach the area of the knives. If it should be necessary to leave 
the implement unattended in this position, protect the hoe area with a rigid panel in order to avoid 
dangerous accidental contact with the hoes by third parties. 

15.2 Replacement of  the hoes

 

 

Using a 17 mm (11/16”) pneumatic screwdriver and a wrench, unscrew the fastening bolts of the old 
hoes and screw in the new hoes, ensure that the hexagonal head of the screw is inserted into the 
hexagonal seat of the hoe support bracket (Fig. 30). Whenever replacing the hoes, always use new 
screws, bolts and split washers. 
After the replacement of the hoes, reassemble the roller unit or the seeder unit (note: the tightness of 
the fastening screws  of the roller assembly and the roller adjuster should allow the components to 
turn round/slide respectively one against another) and the side protections.  

 

 

While replacing the hoes, wear protective gloves, 
safety  shoes,  ear  protection  and  safety  glasses. 
While  using  the  pneumatic  screwdriver  wear  ear 
protections.  

 

When working with the implement in a raised position wear safety shoes.  

 

 
 

 

 

Summary of Contents for MTZ HI

Page 1: ...ENGLISH Mill Grader Mod MTZ HI Instructions and maintenance manual Translation of the original instructions Rev 01 10 2014...

Page 2: ......

Page 3: ...ent 10 Accident prevention 12 Component assembling 14 Hitching the implement to the loader 18 Connecting and disconnecting the hydraulic hoses 20 Preparing for use 21 Adjusting the working depth 21 Ad...

Page 4: ...ance from the side and from the rear of the implement to prevent the risk of injuries and collision Always check that there are no people in range of the implement s movement and operation Anchor poin...

Page 5: ...ols used in this manual This symbol is used in this manual to indicate actions improper use of the implement elements behaviours and situations that can put your safety or the safety of other persons...

Page 6: ...SM seeder might be used in different ways and or for purposes other than those described in this manual the manufacturer declines any liability for damages to persons and or property of any kind Befo...

Page 7: ...7 7 ENGLISH Fig 2 A Roller assembly B Roller adjuster C Quick attach plate D Grader blade E Milling group F Side panel and side panel extension G Seeder assembly optional A B C E D F G...

Page 8: ...0 Weight in models with seeder total weight including the empty hopper given Kg 115 150 180 200 220 250 250 285 280 320 Seeder unit weight with empty hopper Kg 64 70 78 95 105 Hopper volume L 50 57 62...

Page 9: ...9 9 ENGLISH Fig 3a Fig 3b Fig 4a Fig 4b Fig 5 a b c B A C A A A D B...

Page 10: ...ble The anchor points may be the roller unit bracket the screw adjustment support and the front grader blade Fig 8 Make sure that the adjusting and fastening screws of the grader blade are well tighte...

Page 11: ...11 11 ENGLISH Fig 6 Fig 6a Fig 7 SM 135 150 170 Fig 7a SM 100 120 Fig 8 22...

Page 12: ...ns of the loader s quick attach plate are in the lower position and that they have locked the mill grader MTZ HI to the loader Never lift or transport the implement if it has not been locked 7 Never g...

Page 13: ...axis Use utmost caution road handling cornering stability and braking of the loader may be different due to the presence and position of the implement During the transport keep the implement in the lo...

Page 14: ...the mill and the screw register Fig 9 2 Assemble the seeder unit in place of the roller unit using the same attachment points Fig 10a Fig 11 Tighten the bolts so that the seeder bracket and the screw...

Page 15: ...15 15 ENGLISH Fig 9...

Page 16: ...16 16 ENGLISH Fig 10a Mod MTZ HI 135 150 170 Fig 10b A B...

Page 17: ...17 17 ENGLISH Fig 11 Mod MTZ HI 100 120 Fig 12...

Page 18: ...connections see paragraph 8 on page 20 Ensure that the hydraulic hoses are not in the way during installation STEP 2 Fig 14 Turn the quick attach plate hydraulically to an obliquely forward position D...

Page 19: ...19 19 ENGLISH Fig 13 STEP 1 300 700 series loaders 200 series loaders Fig 14 STEP 2 300 700 series loaders 200 series loaders Fig 15 STEP 3 300 700 series loaders 200 series loaders...

Page 20: ...of paragraph 5 on page 12 Use safety gloves and glasses NOTICE keep all couplings as clean as possible use the protective caps on both the attachment and the loader Dirt ice etc may make using the fit...

Page 21: ...of the side panel extensions in three different positions Fig 20 To avoid hoes protruding from the soil and therefore creating dangerous situations during the milling the side panels and the grader bl...

Page 22: ...22 22 ENGLISH Fig 18 Fig 19 Fig 20 Fig 21 Fig 22...

Page 23: ...ange the position of the knob on the graduated scale The quantity of seed to fall can vary depending on the mixture of seed used and the speed of the tractor In order to identify the optimal setting b...

Page 24: ...implement during operation Stay clear of moving mechanical parts Never leave your working place when the loader is on If during operation a lot of dust is stirred up which depends on the soil type we...

Page 25: ...earing chain of the roller brush motion of the hopper and finally reassemble the protective casing Control the chain tension the chain must fluctuate approximately 1 cm if necessary adjust the tension...

Page 26: ...26 26 ENGLISH Fig 24 Fig 25 Fig 26 Fig 27...

Page 27: ...area is dangerous Fig 29 During these operations position yourself firmly and securely and make sure that your face and your body will not be pressed against the hoes Do not allow people or animals t...

Page 28: ...t B Self locking steel nut M10 fine pitch DIN 982 C Nut seat D Hoe E Drilled plate F Reinforced Grower washer DIN 127 B G Steel screw M 10 x 1 25 x 45 fine pitch partial thread DIN 960 8 8 Tightening...

Page 29: ...place etc and protect the protruding parts so that they do not cause injury To avoid hazards store the implement in a way that it does not block escape routes emergency exits firefighting equipment ex...

Page 30: ...in this manual whenever the company deems it necessary for a technical or commercial improvement of the product The original text of the operation and maintenance manual has been written in Italian o...

Page 31: ...31 31...

Page 32: ...ed Office Via Valsellustra 25 29 40060 Toscanella di Dozza Dozza Bologna ITALY Head office Via degli Artigiani 23 40024 Castel San Pietro Terme Bologna ITALY Tel 0039 051 94 30 42 Fax 0039 051 69 42 0...

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