FERRI MT Series User manual

MT Owners Manual
Owner’s Manual
MT Shredder
Maintenance & Use

MT Owners Manual

MT Owners Manual
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CONTENTS
GENERAL INFORMATION section 1 page 2
•Introduction - Goal of the manual section 1.1 page 2
•Identifying the machine section 1.2 page 2
•Spare parts section 1.3 page 2
TECHNICAL FEATURES section 2 page 3
•General Description of the Shredder section 2.1 page 3
•Technical Specifications section 2.2 page 4
•Noise section 2.3 page 4
•Working Positions section 2.4 page 4
•Versions of the Machine section 2.5 page 5
•Optional Equipment section 2.6 page 5
SAFETY RULES section 3 page 6
•General Safety Rules section 3.1 page 6
•Safety Rules Concerning the Hydraulic System section 3.2 page 6
•Safety Rules Concerning Road Traffic section 3.3 page 7
•List of Guards Fitted to the Machine section 3.4 page 6
•Description and Location of Safety Decals section 3.5 page 7
INSTRUCTIONS FOR INSTALLATION AND HANDLING section 4 page 8
•Lifting and Unloading section 4.1 page 8
•Attachment to and Detachment from the Tractor section 4.2 page 8
•Attaching the PTO Shaft section 4.3 page 9
•Asembling Separate Components section 4.4 page 6
ADJUSTMENT AND SETTING UP section 5 page 11
•Regulating the Height of Cut section 5.1 page 11
•Adjusting Belt Tension section 5.2 page 11
•Adjusting Roller and Rear Bonnet section 5.3 page 6
•3 Point Linkage Offset section 5.4 page 6
USE AND OPERATING RULES section 6 page 12
•Starting section 6.1 page 12
•Working Speed section 6.2 page 12
•Transport Position section 6.3 page 12
MACHINE MAINTENANCE section 7 page 13
TROUBLE SHOOTING CHART section 8 page 14
REPLACING PARTS section 9 page 15
•Flails Replacement section 9.1 page 15
•Belts Replacement section 9.2 page 15
•Pipe Replacement section 9.3 page 11
DEMOLITION, DIFFERENTIATED DIVISION AND DISPOSAL section 10 page 14

MT Owners Manual
1GENERAL INFORMATION
1.1 This operation and maintenance manual is intended for the professional user. It is
mandatory to follow these instructions in order to ensure the safety of the operator
and people near him. If you have any questions, contact FERRI customer service or
a certified FERRI dealer.
1.2 Identifying the Machine:
Each shredder is fitted with an identification plate; both the model number and serial
number are located on this plate. This information is required to order spare parts or
answer technical questions for this unit.
1.3 It is required to replace all parts with genuine FERRI parts. The use of parts other
than genuine FERRI parts will alter the technical features of the shredder and FERRI
is not responsible for any damage or injuries to persons due to unauthorized
modifications.
Figure 1
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MT Owners Manual
2TECHNICAL FEATURES
2.1 FERRI shredders have been designed with the sole aim of shredding materials
growing or laying on the ground, e.g. straw, maize, sunflowers, soy beans, cotton,
artichokes, grass prunings up to 1.2” in diameter. (proper use).
Any other use is considered improper and FERRI disclaims all responsibility for any
consequential injuries to persons or damage to the shredder (Fig. 2).
1 - Flails 8 - Belt Tension
2 - Rotor 9 - Driving Pulley
3 - Frame 10 - Gearbox
4 - 3-Point Linkage 11 - Roller Bracket
5 - Ram 12 - Roller
6 - Belts 13 - Rear Bonnet
7 - Driven Pulley
“Proper use” also refers to the safety and maintenance rules provided by the
manufacturer.
A tractor of suitable power must be used for each shredder model. (Table 1).
Using a tractor exceeding the maximum horsepower stated in Table 1 might damage
the transmission assembly and the rotor.
If a tractor exceeding the maximum horsepower is used, the use of a PTO clutch
(torque limiter) is recommended.
The shredder is supplied with all safety and accident prevention requirements.
Figure 2
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MT Owners Manual
2.2 Technical Specifications (See Table 1)
Table 1
Model MT120 MT140 MT160 MT180 MT200
Width of cut ft. 3’11” 4’7” 5’3” 5’11” 6’7”
Tractor required power HP 25 – 30 30 - 45 35 - 50 45 - 60 50 - 70
PTO speed (rear & reverse) rpm 540 540 540 540 540
PTO speed (front) rpm 1000 1000 1000 1000 100
3-point linkage cat. I or lower I or lower II or lower II or lower II or lower
“Y” flails num. 32 32 40 48 48
Rams num. 16 16 20 24 24
Rotor speed rpm 2280 2280 2280 2280 2280
Max. Dia. of cut in. 1.2” 1.2” 1.2” 1.2” 1.2”
Side movement in. 8” 12” 12” 16” 16”
Weight lbs. 617 705 794 726 1014
Dimensions
A in. 53.2 61.2 69.2 77.6 85.6
B in. 30.4 30.4 30.4 31.6 31.6
C in. 17.2 17.2 17.2 18.4 18.4
D In. 26 26 26 27.6 27.6
2.3 Noise:
The sound level of this machine, as
measured at the operator’s position,
ranges from 76 to 76.8 dB when the
cab is closed and from 84.5 to 86.9
dB when the rear window is open.
The acoustic power level is LWA
103.4. When the sound level,
perceivable at the operator’s
position ranges, from 85 dB to 90
dB, the use of ear protection is
recommended.
2.4 Working Positions:
Table 2 shows the two working
positions of the shredder in relation
to the centerline of the tractor.
Table 2
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MT Owners Manual
2.5 VERSIONS OF THE MACHINE
2.5.1 Rear Version
2.5.2 Front & Reverse Version
Figure 3
Figure 4 Figure 5
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IMPORTANT: Always check that the number of revolutions and the rotational direction of
the tractor power take-off corresponds to those shown on the shredder.
REAR VERSION
FRONT VERSION REVERSE VERSION

MT Owners Manual
2.6 OPTIONAL EQUIPMENT
2.6.1 Depending on the different
crops to be cut, the rotor
can be changed and suit-
able flails can be fitted and
used:
2.6.2 The shredders can be provided with toolholder rakes to collect prunings.
Model MT120 MT140 MT160 MT180 MT200
Rakes 8 9 11 12 13
Weight lbs. 62 71 82 93 102
NOTE: The toolholder rake can be fitted only on rear version shredders.
2.6.3 Wheels (only in the rear version)
Figure 7
Figure 6
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MT Owners Manual
2.6.4 Slides
2.6.5 Kit For Mobile Linkage
Rear mobile linkage
Front and reverse mobile linkage
Figure 5
Figure 8
Figure 9
Figure 10
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MT Owners Manual
Ram for hydraulic linkage
Rod for manual mobile linkage
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MT Owners Manual
3GENERAL SAFETY RULES
3.1 General Safety Rules:
•It is mandatory to read and follow the instructions from the use and maintenance manual
before carrying out any operation or moving the shredder. Improper use or moving it
improperly may seriously damage property and harm people.
•Both the operator and maintenance fitter must know the shredder well, especially regarding
dangers resulting from improper use or incorrect repairs.
•Before starting, check the tractor and shredder in regards to functionality, road safety and
accident prevention rules.
•Even when using the shredder correctly, stones or other objects may be thrown a long
distance. Therefore, nobody should be standing within the danger area. Special attention
must be paid when working near roads or buildings.
•Use tractor with cabs.
•The condition of flails and of all guards must be checked before beginning the daily work.
They must be replaced if damaged or missing.
•During checks or repairs, make sure nobody can start the shredder by mistake.
•Never wear loose or fluttering clothes.
•Never carry passengers on the tractor.
•Never carry passengers on the shredder.
•Never connect the power take-off until the engine is completely stopped.
•Never approach the shredder until the rotor has completely stopped.
•Do not enter the working zone of the PTO shaft while it is in motion. It is dangerous to
approach the rotating parts of the machine.
•Keep the PTO shaft guard in good working order.
•Before starting, check the surrounding area for the eventual presence of children and or
animals.
•DO NOT stand in the range of operation of the machine.
•The PTO shaft must be assembled and disassembled only with the engine is stopped and
the ignition key removed.
•Before connecting the power take-off, check that the speed and rotation direction
corresponds to those of the shredder.
•Before leaving the tractor with the shredder attached, proceed as follows:
1. Disconnect the power takeoff.
2. Put the machine firmly on the ground (with the hydraulic lift).
3. Apply the hand brake and if the ground is sloping steeply, wedge the tractor
wheels.
4. Take the ignition key out.
•Immediately replace any safety sign or missing, damaged decal.
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MT Owners Manual
3.2 Safety Rules Concerning the Hydraulic System:
•This shredder uses a hydraulic circuit to operate the shifting of the 3 point
linkage; the pressure of such system must not exceed 170 BAR.
•Label the different pipes to avoid reversal of operation.
IMPORTANT: Do not look for oil leaks with bare hands, but always with the aid of gloves
or a cloth. Oil under strong pressure may seep into the skin causing serious
infections. If this happens contact a doctor immediately.
•Periodically check the flexible pipes, if they are worn or damaged they must be
replaced with new pipes with the same specifications.
•Before working on the hydraulic system, lower the machine, release the pressure
out and bleed the presure, then stop the tractor.
3.3 Safety Rules Concerning Road Traffic:
•While in transport reduce speed, especially on bumpy roads. The weight of the
lifted shredder may render driving difficult and damage the shredder itself.
•Check that the hydraulic lift levers are locked to avoid the lowering of the
machine during transport.
•When driving on public roads, respect all road rules in force.
3.4 List of Guards attached to the shredder (Figure 13):
1 - Front Guard
2 - PTO Shaft Bearing
3 - PTO Shaft
4 - Belt Guard
5 - Belt Guard
6 - Danger and Warning Decals
7 - Rear Guard
Figure 13
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MT Owners Manual
3.5 Description and Location of Safety Decals (Figure 14)
Carefully follow the instructions given on the decals.
Description of the Decals
1. Danger sign for rotating flails; keep hands and feet away from the unit.
2. Danger sign; it shows the risk of flying stones or other objects and makes it
mandatory to keep out of the danger zone.
3. Danger of getting entangled; do not approach the rotating PTO shaft. Pay special
attention to clothing, which must not be loose or fluttering.
4. Danger sign of crushing or shearing: DO NOT put limbs in the moving parts of the
machine where this decal is located.
5. Warning of danger through lack of knowledge of all the functions of the machine
and the resulting risks; read the use and maintenance manual before operating the
shredder.
Figure 14
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MT Owners Manual
4INSTRUCTIONS FOR INSTALLATION AND HANDLING
4.1 Lifting and Unloading:
To handle the shredder, use a hoist or a crane with lifting capability suitable to the weight
of the machine (See Table 1) and with proper chains and type approved hooks to be fixed in the
marked points, as shown in Figure 15.
4.2 Attachment to and Detachment from the Tractor:
Before carrying out this operation and any time the shredder is used, it is mandatory
to:
1. Visually check the machine in general.
2. Check that all guards are fitted and in good condition.
3. Confirm that all flails are fitted and in good condition.
4. Grease the bearings and any other parts as indicated by a decal (Figure 41).
5. Check the oil level of the gearbox and extension.
4.2.1 Bring the tractor lower hitches (1) near the shredder, insert the two pins (2) and
secure them with the spring clips, adjust the tractor’s lower linkage stabilizers (3)
thus fixing the shredder to the tractor in a horizonal position about 2.5” from the
ground. Fix the top link (4) in the slot (5) of the shredder and adjust it so that the pin
is at the front of the slot, as shown in Figure 16.
Figure 15
Figure 16
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MT Owners Manual
4.2.2 The slot for the pin of the top link allows the shredder to follow any small depressions
on the ground. In case of particularly uneven fields or steep slopes, it is advisable to
replace the fixed top link with a chain (See Figure 17).
Figure 17
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4.2.3 Completely lift the shredder and check that the tractor is stable.
Add ballast to the front of the tractor if the front of the tractor is too light (Figure 18).
4.3 ATTACHING THE PTO SHAFT
4.3.1 With the hydraulic lift of the tractor, place the shredder to the closest point between
the two power takeoffs and check the minimum length of the PTO shaft (Figure 19).
IF it needs lengthening, check that the overlap is not less than 2/3 of L (Figure 20).
IF it needs shortening, proceed as in (Figure 8).
Figure 18
Figure 19 Figure 20

MT Owners Manual
4.3.2 The guards of the PTO shaft must be fixed to the shredder
and to the tractor with chains to prevent rotation.
4.3.3 The minimum overlap of the guard and the PTO shaft must
be at least 2 in.
(Figure 13).
4.4 Assembling the Separate Components (Variations):
4.4.1 Assmbling the Rake: (only on rear version machines)
To assemble the rake proceed as follows: (Figure 22)
If the rear bonnet is fitted (7) (Figure 13), unscrew and take it away.
Move the roller as far as possible from the rotor, fixing the screws in the position B.
Fix the rake holder (1) using the special screws (2). Insert the rake and set the height
of cut using the spring pins (4).
NOTE: If the rake is fitted on a machine equipped with wheels instead of the roller, fix the
guard (5) under the rake holder (1), making the necessary holes while assembling
the guard. (Figure 23)
Figure 21
Figure 22
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Figure 23

MT Owners Manual
4.4.2 Assembling the wheels (Figure 24):
(only for rear version machines)
Before assembling the wheels, the roller must be disassembled. Attach the wheel
holders (1) to the sides of the shredder using the screws (2). Insert the wheel and the
arm into the holder, attach with a pin (3) and secure them with the spring clips (4).
Adjust the height by moving the sector (5) and fixing it with the screws (6). Attach the
guard (7) to protect from the possible throwing of objects by the shredder. Always
remember to make the holes while assembling the guard.
Figure 24
Figure 25
Figure 26
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NOTE: FIGURE 25
The assembling of wheels is possible in the position A, within the dimensions of the
shredder, when working in narrow spaces (vineyards, orchards), or externally to
these dimensions, in the position 8, when working in an open field.
IMPORTANT:In case of reverse motion, lift the shredder from the ground, or the
wheels could be broken (Figure 26).

MT Owners Manual
Figure 27
Figure 28
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4.4.3 Assembling the slides (Figure 27):
Lift the shredder with the help of the tractor lifter, insert the slides (1) and fix them
with screws (2). The slides can be assembled in two different positions, thus allowing
to adjust the height of cut.
4.4.4 Assembling the mobile linkage:
Assembling the mobile linkage (rear version Figure. 28).
- Assemble the 3 point linkage (1) to the fixing squares (3) with the tube (2). Fix the
squares to the frame with the screws (4). Assemble the holder (5) and fix with the
screws (6). Connect the 3 point linkage (1) to the holder with the tie rod (7) and fix
with screws (8).

MT Owners Manual
Assembling the mobile linkage (front and reverse version, Figure 29).
•Fix the holder to the frame (1) with screws (2), assemble the 3 point linkage (3) to
the holder with the tube (4) and fix it with screws (5). Assemble the holder (6) with
the tie rod (8) and fix with screws (9).
•Fix the guard (10) to protect from the possible throwing of objects by the shredder,
always remembering to make the necessary holes while assembling the guard.
NOTE: The guard can be assembled in the position A, in case of discharge of
material opposite the roller (roller in backward position); or also assebled in position
B is available, in case of discharge of material behind the roller (roller in forward
position).
IMPORTANT: When using a front version shredder, the PTO shaft with free wheel
must have the rotational direction opposite to that of the rear or reverse version.
Assembling the rod for the manual mobile linkage (Figure 30)
Insert the rod (1) from the threaded side into the hole of the square (2) and fix it with
the bolt (3). Insert the pin (4) into the hole of the rod corresponding to the desired
movement and fix with the spring clip (5).
Figure 29
Figure 30
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MT Owners Manual
Assembling the ram for the mobile hydraulic linkage (Figure 31)
Assemble the holder (1) to the square (2) and fix with the bolt (3); assemble the ram
(4) on the pin (5) and fix with the spring clip (6), fix the fork (7) to the holder (1) with a
pin (8). Connect the flexible pipes (9) to the hydraulic clutch of the tractor, checking
that the pressure is not over 170 Bar.
IMPORTANT: Carry out movements only with the shredder lifted off the ground.
Figure 31
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