R2 RINALDI MT Instructions for use

Rev. 2
9
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08
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2016
ENGLISH
Mill Grader
Mod. MT – MTL – MThi – MTLhi
Instructions and maintenance manual
(Translation of the original instructions)

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TABLE OF CONTENTS Page
WARNING ! …………………………………………………………………………………………... 4
Introduction …………………………………………………………………………………………… 5
Identification of the machine ...……………………………………………………………………... 5
Description of the machine and its appropriate use …………………………………...………… 6
Technical specifications and dimensions …………………………………………………………. 8
Handling and transporting the machine …………………………………………...…………….... 8
Accident prevention ................................................................................................................ 10
Components assembly and coupling of the two-wheel tractor …….…………………………… 12
Preparing for use..................................................................................................................... 16
Adjustments ............................................................................................................................. 16
Using the machine................................................................................................................... 19
Maintenance............................................................................................................................
20
Replacing the hoes.................................................................................................................. 22
End of work and storage of the machine ................................................................................ 24
Scrapping and disposing of components and packaging ........................................................ 24
Notes about the hydraulic machines ………………………………………………………………. 25
Warranty - Certification …………………………………………………………………………….. 30

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Mill grader
Mod. MT – MTL – MThi – MTLhi
Instructions and maintenance manual
(Translation of the original instructions)
-----
WARNING !
Read this instruction
manual before using the
implement
Before working on the
implement, turn off the
two-wheel tractor (or
tractor), remove the key
and read these
instructions
Keep a safe distance
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.
Keep hands away from
the tilling unit: danger of
serious injury.
Never climb on the
roller group or on the
machine.
Do not bring the hands
close to the roller group:
danger of crushing.

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Introduction
We would start by thanking you for having chosen our product and hope that you will be happy with
your choise.
In order that your MILL GRADER Mod. MT – MTL – MThi – MTLhi can offer the maximum
efficiency for many years, we ask you to pay attention to the instructions for use and maintenance
which you will find in this manual. Observance of these regulations will prevent breakdowns and
accidents for which our company will not accept responsability.
This use and maintenance manual is to be considered an integral part of the machine and therefore
it must always accompany the machine when it is sold, even in the event of its sale to third parties.
If you keep this manual in a safe place and in good condition, you - and whoever must use the
machine - will be able to have a complete, legible reference on hand at all times.
Description of the symbols used in the manual
This symbol will be used in the
manual to indicate actions
( misuse ) elements, behaviours
and situations that could risk
your security and the one of
other people.
The rounded symbols with
white pictograms will be used in
the manual to indicate the
Individual Protective Devices
necessary while using the
machine or while making any
adjustments.
This symbol will be used in this
manual to indicate that the
described operation must be
done with the walking tractor or
tractor turned off and the key
disconnected.
NOTE: This manual concerns the use and maintenance description of the mecchanic mill graders
MT-MTL, which corrisponds largely to the hydraulic models MTLhi and MThi; the differences
between the two models will be indicated with a caption
(*note n mod. hi) (nindicates the note number)
and examined in an specific section of the manual (from page 25).
1 – Machine identification
Each R2 machine has a CE plate with the main details of the R2 company and of the machines.
The plate is positioned on the top center of the machine.
Fig. 1

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2 - Description of the machine and its appropriate use.
(*note 1 mod. hi)
The mill grader (power harrow) mod. MT – MTL – MThi – MTLhi is a mechanic machine that
applied to all types of walking tractors or small tractors with flange attachement of 8-10 HP, 10-12
HP, 12-14 HP mills, levels and compresses the soil in a single operation. As it can be seen from
the illustration (Fig. 2) the mill grader mod. MT – MTL – MThi – MTLhi is equipped with a central
body (power harrow) for the soil refining , of a scraper for the soil levelling and of a special mesh
roller to adjust the working depth and the soil compaction .The power harrow mod. MT – MTL –
MThi – MTLhi is used in the preparation of the soil for fields, gardens, sporting facilities and
vegetables.
The power harrows mod. MT – MTL – MThi – MTLhi are designed to be applied
exclusively to professional CE-certified* drive equipments (two-wheel tractors and small
tractors** with flange attachment) with suitable power. The purpose of the power harrow
is exclusively to work the soil.
Any other use is considered improper and therefore dangerous. If at any time the power harrow
mod. MT – MTL – MThi - MTLhi 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.
Before assembling the machine to the two-wheel tractor, before using the machine and before any
maintenance operation on it, read and follow carefully the instructions given in this manual as well
as in the operator’s manual of the two-wheel tractor which will be connected with the machine.
The proper use of the power harrow also involves the adhering to the following points:
-The respect of the rules of use and maintenance established by the manufacturer and gathered in
this manual.
-the exclusive use of spare parts and original R2 accessories.
The machine must be used, maintained and repaired only by competent staff.
The qualified staff enabled to use the machine must be properly trained and informed of the proper
use of the equipment and the risks that could be run.
The user is required to comply with the rules and existing Legislation relating to fire prevention,
safety at work and traffic in public roads.
* Certification for the European Market.
** From now on, if not specified, the term “two-wheel tractor” (or “walking tractor”) will also indicate the term “tractor”.

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Fig. 2
A. Main body of the machine
(harrow).
B. Register roller adjustment.
C. Roller group.
D. Side and side extension.
E. Scraper.
F. Walking tractor coupling.
G. Fixed protections.
F
A
C
B
D
E
G
G
G

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3 – Technical specifications and dimensions
(*note 2 mod. hi) ModelMTL 50 MTL 75 MTL 100 MT 60 MT 90 MT 125
Milling width (Fig. 3a – Ref. A) 50 cm 75 cm 100 cm 60 cm 90 cm 122 cm
Levelling width (Fig. 3a – Ref. A) 50 cm 75 cm 100 cm 60 cm 90 cm 122 cm
Compactness width (Fig. 3a – Ref. B) 60 cm 85 cm 110 cm 70 cm 100 cm 132 cm
Depth (Fig. 3a – Ref. C) 75 cm 75 cm 75 cm 75 cm 75 cm 75 cm
Maximum height from the ground (Fig.
3b – Ref. A) 42 cm 42 cm 42 cm 42 cm 42 cm 42 cm
Walking tractor/tractor HP 8-10 HP 12-14 HP 14-18 HP 12-14 HP 14-18 HP 16-18 HP
Maximum working depth 14 cm 14 cm 14 cm 14 cm 14 cm 16 cm
Minimum working depth: (with new
hoes)
●With flank extensions low position
(Fig. 4 – Ref. a) 6 cm 6 cm 6 cm 6 cm 6 cm 6 cm
●With flank extensions medium position
(Fig. 4 – Ref. b) 8 cm 8 cm 8 cm 8 cm 8 cm 8 cm
●With flank extensions high position
(Fig. 4 – Ref. c) 10 cm 10 cm 10 cm 10 cm 10 cm 10 cm
Number of hoes 6 10 14 6 10 14
Weight 70 Kg 95 Kg 115 Kg 90 Kg 110 Kg 130 Kg
Lubricant: ROLOIL LITEX - EP/0
Note: Emission of airborne noise. The noise produced by the machine varies according to the soil
features at work. Exposure also depends strictly on the noise produced by the working equipment
(walking tractor or tractor). Considering the data in the literature relating to similar equipment, it can
be considered an approximate value of exposure to the noise (determined by the machine and the
walking tractor or tractor) between 90 dB (A) and 95 dB (A).
Verify the level of exposure to the noise with the proper instruments each time any work is performed. Follow the legislative
references of your country to identify the personal protective necessary equipment.
4 Handling and transportation of the machine.
(*note 3 mod. hi)
- The machine must be handled with lifting equipment Make sure that such equipment (including
the straps and the strings ) have a carrying capacity appropriate to the weight to be lifted and that
they are in good maintenance conditions.
The machine can be anchored in the coupling point as indicated in Fig. 5; b
ecause of the position of
the center of gravity, the machine will lean while lifted of 25 ° (Fig. 5).
In order to make handling operations safely , always wear safety shoes and
make sure that there are no people or animals nearby while working.
The anchorage ring must be used only to lift the machine; do not use it to lift
the machine group and two-wheel tractor assembled between them.
- The machine must be transported by professional means of conveyance (trucks, vans, etc.).
Transportation by car is permitted only if the car boot is divided by the driving / passenger seat with
a barrier that can hold the machine in case of frontal collision. In all cases, before transporting the
machine , make sure that it is well anchored with straps and strings and that it is stable enough. The
anchor points can be the roller group support and the front scraper. Make sure that the scraper
adjustment screws are properly tightened.
Always check that any walkways, ramps, etc. that must be crossed with means of conveyance and
lifting equipment are well anchored and have a capacity capable of supporting the total load of the
vehicle + machine + operator. When using ramps for loading, ensure that the vehicle has the
handbrake on and have been positioned the wedges suitable for locking the wheels.

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Fig. 3a
Fig. 3b
Fig. 4
a b c
Fig. 5
B
A
A
C
25°

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5 – Accident prevention
(*note 4 mod. hi)
Most accidents that happen at work, during the maintenance or the shifting of a machine, are due to
negligence in the observance of the most elementary rules of accident prevention.
It is, therefore, necessary that whoever uses the machine read and respect the rules written below
and the ones on the adhesive stickers of the machine.
1. Verify that on the machine are stuck all the security signs and that they are readable.
2. Before cleaning the machine, making any adjustments or reparations, turn off the two-wheel
tractor engine. Before each operation put the machine on the floor or on steady supports.
3. Never approach to the machine moving parts.
4. The mill grader mod. MT – MTL – MThi – MTLhi has been manufactured for a specialized
use. It must, therefore, always be in perfect working conditions and only R2 spare parts
should be used when making any reparations.
5. Before using the machine, check the tightening of the nuts and screws, in particular those of
the hoes.
6. Keep away all the people or animals before starting to work.
7. Be careful when working alongside roads, pathways or sloping ground. Follow the instructions
listed in the two-wheel tractor's manual before using it on sloping surfaces.
8. Do not leave the machine working without supervision.
9. While checking or repairing or cleaning the machine, be sure that nobody can start it up
accidentally.
10.Wear tight-fitting clothes that do not cause any footholds in the rotating parts of the machine.
11.Do not climb on the machine at work.
12.Do not interfere with objects on the machine while working.
13.Never use the machine without the back roller or without the protections delivered with the
machine. Never remove the protections.
14.In order to adjust the front protection , always turn off the two wheel-tractor engine and make
this operation safely.
15.In case the machine blocks, before making any reparations, turn off the two-wheel tractor (or
tractor) engine and remove the key.
16.Always read the instruction booklet of the two-wheel tractor before fitting and using the R2
machine. Do not remove or evade the security systems of the two-wheel tractor; before start
working, be sure that the security systems of the two-wheel tractor work correctly; if not, do
not use the machine.
17.Do not carry people , animals or objects on the machine.
18.In case of road traffic respect the regulations in force in your country; put on the machine all
the signals required.
19.Do not place the body under the machine lifted from the ground.
20.Adjust the scraper with the two-wheel tractor engine off and the ignition key disconnected.

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Components assembly and coupling of the two-wheel tractor

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6- Components assembly and coupling of the two-wheel tractor
(*note 5 mod. hi)
Note: all the components that make part of the machine and that must be assembled before using it,
have been designed to minimize the user’s work; the parts should be assembled using hand tools
(wrenches).
The components must be assembled with the implement
disconnected from the two-wheels tractor.
The assembly must be made on a steady surface or on an
homogeneous level floor. During the assembly wear
leather gloves and accident-prevention shoes.
6.1 Roller group and register roller adjustment assembly.
1. Attach the roller unit to the implement using the appropriate roller support arms (Fig. 6 – Ref. A)
inserting the galvanized bush between the roller support arm and the machine side. (Fig. 6 – Ref.
B). Tighten the bolts.
2. Attach the roller register as shown in Fig. 6 - Ref. C by tightening the bolts in such a way that the
register and the roller support can rotate during the adjustment (tighten the bolts, then loosen
them about ¼ of a turn).
3. Put the two lateral protections (Fig. 6 – Rif. D) with the danger signals facing upwards, fastening
them at the sides with the back bolt M8x20 of the extension side and with the back bolt M10x110
(inserting the spring), putting the washer of 4 mm of thickness (Fig. 6 – Rif. E) between the
protection and the side.
6.2 Flange assembly and coupling of the machine to the walking tractor or tractor.
Before fitting the machine flange (Fig. 6 - Ref. F), which varies according to the model of the walking
tractor, we advise you to apply some grease on th external diameter of the machine hub (Fig. 6 -
Ref. G) in order that the machine oscillates . Fit in the flange with two special screws (grub screws)
and two nuts (Fig. 6 – Ref. H); in order to fix the flange on the hub do as follows:
Screw the grub screws completely and then turn back of one turn, close the nuts and tighten.
Once you have finished, check that the flange oscillates freely without tightening or seizing,
otherwise repeat all again.
Put the transmission sleeve (Fig. 6 - Ref. I) on the machine shaft previously lubricated.
Afterwards, bring the two-wheel tractor near to the machine (Fig. 7) paying attention that the sleeve
engages with the connecting-shaft of the two-wheel tractor and that the two flanges, the one of the
two-wheel tractor and the one of the machine, fit perfectly well; then tighten the machine with the
rods of the two-wheel tractor.
For the flange fixing to the two-wheel tractor, look at the two-wheel tractor instructions manual.

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Fig. 6
Fig. 7
A
A
B
C
D
D
E
E
F
G
H
I

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Preparation for use
Adjustments
Machine use
Maintenance
Replacing the hoes
End of work and storage of the implement
Scrapping and disposal of components and packaging

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7 – Preparig for use
Before using the machine it is necessary to perform the following controls with the
two-wheel tractor or tractor off and the key off:
1. Perform a general visual inspection of the implement. Verify the correct mounting of the
components (mechanical parts and guards). Do not use the implement if you experience an oil
leak and/or if you see that parts of the implement are damaged, missing or not properly secured.
2. Check the correct coupling of the milling machine to the two-wheel tractor (see paragraph 6.2 on
page 12);
3. Check that the hoes are intact.
4. Check that the safety signs are in place and legible.
8 – Adjustments
8.1 Adjustment of the working depth, of the extension sides and of the front scraper.
The provided roller adjuster screw sets the working depth.
In reference to the driving position of the operator (fig. 8):
- turning the roller adjuster clockwise, the roller rises and the hoes penetrate further into the soil
(major working depth);
- turning the adjuster counter-clockwise, the roller sinks and the hoes rise referring to the ground
(minor working depth).
To carry the machine not at work mounted on the two-wheel tractor , turn the register anti- clockwise
until the hoes will get away from the soil (Fig. 9); in this way the roller will function as a wheel.
Do not operate the milling group for any reason when the machine is lifted from the soil.
According to the working depth and to the wear of the hoes, it will be necessary to adjust the position
of the extension sides and the front scraper.
For a correct adjustment of the extension sides and of the front scraper see paragraph 8.3.
In order to prevent the hoes from remaining exposed and to avoid any
dangerous situation during the milling, it is important that the extension
sides are adjusted in such a way that they always touch the soil and that
the front scraper skims the soil; the extension sides and front scraper
adjustment must be made with the two-wheel tractor off and the key off.
Do not operate the milling group for any reason when the machine is lifted
from the soil.
For a correct adjustment of the extension sides and of the front scraper
see paragraphs 8.2 and 8.3.
8.2 Scraper adjustment
The scraper levels the soil while the machine is moving forward.
The scraper must be adjusted according to the working depth chosen, acting manually on the two
special screws ( Fig.10). Make sure that the tips of the special screws fit in the niches of the scraper
supports.
For a correct scraper adjustment see paragraph 8.3.
Make the scraper adjustment with the two-wheel tractor or the
tractor switched off and the key removed. Wear the protective
gloves to prevent the hands skin from injuring.

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Fig. 8
Fig. 9
Fig. 10

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8.3 Procedure for the regulation of the extension sides and the front scraper (check also the part
minimum working height from the table technical characteristics page 8):
1. Put the machine on an homogeneous floor;
2. Turn the register roller clockwise; the roller height compared to the floor indicates the working
depth while working;
3. Adjust the extension sides and the front scraper in such a way that the lower profile of these parts
has the same level of the lower part of the roller. (Fig. 11).
Fig. 11
h
Extension
side
Front
scraper Roller

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9 – Machine use
(*note 6 mod. hi)
9.1 – Soil working
Once you have made the adjustments, it is possible to operate the walking tractor (or tractor) and so
the PTO that will determinate the hoes rotation . Pressing the forward, the working soil will start. The
operator’s position is at the rear of the walking-tractor (or semi-laterally where it is possible to adjust
the handlebars) or at the driver’s tractor seat.It is important to remember that while driving you
should not make any turning maneuvers (the hoes are inserted into the ground) but only small
corrections of direction.
To change direction do as follows:
1. Stop the motion of the walking tractor or tractor feed;
2. Stop the PTO motion;
3. Lift the machine using the walking tractor handlebars or the tractor lift group;
4. In order to change direction, place yourself in the track you would like to follow;
5. Lower the machine;
6. Operate again the PTO motion;
7. Operate again the forward motion.
Keep in mind the rules for the prevention of accidents mentioned in Section 5.
5. Always remember to:
- Keep away people or animals from the working area; do not allow anyone to aprroach to the
machine while working.
- Never approach to the mecchanical moving parts; wear safety shoes. If while working, there is a lot
of dust (which will depend on the type of soil) wear a dust mask.
- Do not use the machine in reverse; do not use the machine on steep slopes
(verify the walking tractor or tractor instruction booklet ).
- Before operating the machine, verify that the safety system of the walking
tractor or tractor functions correctly.
9.2 – Accidental locking of the milling group
The MILL GRADER Mod. MT – MTL / MThi – MTLhi has been designed and constructed so as to
minimize the possibility that the mill grader can lock while working.
It is not excluded, however, that this can happen if there are stones or big stones, iron wires or
other elements that can fit in or roll in the hoes. In order to avoid the power harrow from locking, we
advise to do as follows:
-Before starting to work, remove the big stones, the iron wires, etc. from the surface .
-Adjust the working depth needed.
-Replace the hoes when they are worn out (see paragraph 11).
If the power harrow locks, before making any adjustment , TURN OFF
THE ENGINE of the walking tractor or tractor and REMOVE THE KEY.
The key must be kept by the person that will remove the stuff that
has locked the machine.
To unlock it, remove the stuff with a tool of lengthened shape; do not use the hands. NOTE: usually
the machine is unlocked when the walking tractor or tractor engine is turned off as there is no
pressure in the hoes that keep the blocking piece.

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10 - Maintenance
(*note 7 mod. hi)
During the maintenance operations wear protective gloves; for the lubrification/greasing
operations always wear nitrile gloves and protective glasses.
If the maintenance is made on a raised plane (for example on a workbench), always wear safety
shoes.
All the maintenance work must be performed with the two-wheel tractor off and the key off.
Steps to be taken to keep the implement in working condition:
- Before each use of the implement:
1. Proceed with a visual inspect of the implement.. Verify the integrity and the correct
attachment of the components (mechanical parts and guards). Do not use the implement if
you notice an oil leak from the gear body of the miller or from the hydraulic circuit and/or if you
note that parts of the implement are broken or worn, missing or not properly fastened.
2. Check that the hoes are intact and well fixed. If during work the hoes should accidentally
break, stop work immediately and replace them.
3. Check the distance of the cleaning roller bar from the roller. The roller must turn freely without
blocking. If the cleaning roller bar is too close to the roller, loosen the fixing bolts (Fig. 12)
adjust the cleaning roller bar distance and tighten the bolts again.
- Periodically / early in the season of the implement's use:
1. Grease the roll adjuster* using the appropriate grease gun (Fig. 13 – Ref. A).
2. Check the level of the lubricant in the gear tank* (main body of the implement) using the
appropriate cap located on the tank (Fig. 13 – Ref. B). The level of the lubricant must cover the
gears.
3. Grease* the special tightening screws of the scraper (Fig. 13 – Ref. C).
4. Grease* the flange using the appropriate greaser (Fig. 13 – Ref. D).
5. Checking and replacing the hoes: see section 11, p. 22.
For cleaning the implement and the seeder unit read paragraph 12 on page 24.
Any intervention for breakage and damage must be performed by personnel skilled in maintenance of
mechanical agricultural equipment. In this case, contact your dealer or R2 technicians directly.
Use only original R2 spare parts.
After finishing the lubrification/greasing operations, clean the residual of lubricant left on the floor.
*For the types of lubricants used, see the table in section 3, p. 8).