IronCraft FMH Series User manual

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l y 2022
FMH Series
Flail Mower
Operation Manual

FLAIL MOWER – FMH Series
3
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Congratulation forpurchasing your new IronCraft flail mower!
This machine has been designed and manufactured following all safetyand quality requirements needed
for a safeand satisfactory use over time.
Acareful reading of this manual will permit you to familiarize with your new equipment, and will provide
you all the tools needed to use it safely.
A proper maintenance and knowledge of the safetyrules of use will allow to obtain the best performance
and a long service lifeof the machine.
The Safety Alert Symbol used throughout this manual and on safety decals of the
machine indicates the presence of potential hazard to the operator. When you see
this symbol, be alert and carefully read the message that follows it.
The Safety Alert Symbol is used in conjunction with following Signal Words, according to the
degree of possible injuries that may result operating the implement:
DANGER
Indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury.
WARNING
Indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury, and
includes hazards that are exposed when guards are removed. It may also be used to alert against unsafe
practices.
CAUTION
Indicates a potentially hazardous situation that, if not avoided, may result in minor or moderate injury. It
may also be used to alert against unsafe practices.
IMPORTANT
Indicates instructions or procedures that, if not observed, can cause damage to equipment or environment.
NOTE
Indicates helpful information.
READ, UNDERSTAND, and FOLLOW the safety messages following the Safety Alert Symbol and Signal
Words. Failure to comply with safety messages could result in serious bodily injury or death.

FLAIL MOWER – FMH Series
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TO THE PURCHASER
This manual contains valuable information about IronCraft FLAIL MOWER.
It has been carefully prepared to give you helpful suggestions for operating,
adjusting, servicing repair parts.
Keep this manual in a convenient place for quick and easy reference. Study it
carefully. You have purchased a dependable and sturdy Flail mower, but only by
proper care and operation can you expect to get the service and long life designed
and built into it.
RIGHT-HAND AND LEFT-HAND sides are determined by watching from the tractor
side.
Sometime in the future your Flail mower may need new parts to replace
those are worn or broken. If so, go to nearest IronCraft dealer and provide him the
model and part number.
Customer information
Name ____________________________________________________________
Purchased from_____________________________________________________
Purchased date______________________________________________________
Model No.__________________________________________________________
Serial No.___________________________________________________________

FLAIL MOWER – FMH Series
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TABLE OF CONTENS
1. ABOUT THIS MANUAL 6
2. INTRODUCTION 6
2.1. MACHINE IDENTIFICATION 6
2.2. INTENDED USE 7
2.3. MAIN PARTS DESCRIPTION 8
2.4. CONFIGURATION 9
2.5. TECHNICAL SPECIFICATION 10
3. SAFETY11
3.1. GENERAL SAFETY INSTRUCTIONS 11
3.2. EQUIPMENT SAFETY INSTRUCTIONS 12
3.3. OPERATING SAFETY INSTRUCTIONS 13
3.4. TRANSPORTING SAFETY INSTRUCTIONS 14
3.5. MAINTENANCE SAFETY INSTRUCTIONS 15
3.6. STORAGE SAFETY INSTRUCTIONS 16
3.7. SAFETY LABELS 16
4. SET UP 20
4.1. CONNECTING TO THE TRACTOR 20
4.2. DRIVELINE INSTALLATION 21
4.3. TRACTOR-FLAIL MOWER STABILITY
22
5. OPERATING 23
5.1. STRT-UP 23
5.2. OPERATING INSTRUCTIONS 24
5.3. ADJUSTMENTS 26
5.4. STOPPING AND DISCONNECTION 33
5.5. TRASPORTATION 33
6. MAINTENANCE 34
6.1. ROTOR TOOLS REPLACEMENT 34
6.2. GEARBOX LUBRICATION 36
6.3. ROTOR BEARINGS LUBRICATION 37
6.4. ROLLER BEARINGS LUBRICATION 37
6.5. WHEELS BRACKETS LUBRICATIONS 38
6.6. 3-POINT HITCH LUBRICATION 38
6.7. DRIVE BELTS REPLACEMENT 39
6.8. DRIVESHAFT MAINTENANCE 39
7. STORAGE 39
8. SCRAPING 39
9. TROUBLESHOOTING 40
10. TORQUE VALUES TABLE 41
11. WARRANTY 41
12. PARTS INFORMATION 42

FLAIL MOWER – FMH Series
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1. ABOUT THIS MANUAL
The operator must read the manual for a correct understanding of the hazards that may present when ope-
rating the flail mower, as well as for obtain optimum performance from the machine.
The manual is part of the machine, it must be kept in good condition and remain with the machine even in
case of resale, until its demolition. In case of loss or damage, request a new copy to the Manufacturer or
your Dealer.
The information, descriptions and illustrations in this manual describe the state of the product at the time
of its publication, and may not reflect the product in the future.
The Manufacturer reserve the right to make design improvements or changes in specifications without
incurring in any obligation to install them on units previously sold.
Text, illustrations and drawings of this manual cannot be disclosed or transmitted, in whole or in part, to
third parties without the written permission of the Manufacturer. All rights are reserved.
2. INTRODUCTION
2.1. MACHINE IDENTIFICATION
Each flail mower is provided with a plate for unique identification (see position in picture below), showing the
CE marking together with following information:
• Manufacturer name and address
•Type of machine (“TYPE”)
• Model of machine (“MODEL”)
• Serial number (“SERIAL No.”)
• Construction year (“YEAR”)
• Machine weight (“MASS”)
It’s recommended to note down all data shown on the plate.
Any request for assistance or information regarding the machine must be directed to the Manufacturer or
Dealer always referring to the model and serial number as shown on the plate affixed to the machine.

FLAIL MOWER – FMH Series
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2.2. INTENDED USE
The FMH flail mower is designed specifically for cutting grass and for shredding fibrous and wood stalks,
corn and branches up to a diameter of 8 cm, depending on the type of tool used.
The flail mowers are designed to be mounted on tractors equipped with hydraulic lift and universal three
point hitch that can support the implement weight, and driven by the power of the tractor through the
PTO driveshaft. The tractors used to operate the FMH flail mower must have the following requirements:
Hitch Category: 3-point hitch, I / II Category standard
PTO: 540 RPM, 6-spline, 1 3/8 Z6
Horsepower: 30-60 HP
DANGER
Any use of the machine other than the intended use is non-intended use, and is to be considered as
unauthorized and dangerous. The manufacturer assumes no liability for damage resulting from non-
intended use.

FLAIL MOWER – FMH Series
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2.3. MAIN PARTS DESCRIPTION
1. Flail mower frame
10. Raks
2. Lower hitch
11. Shredding room
3. Lower hitch pin
12. Roller
4. Upper hitch pin
13. Parking stand
5. Upper hitch
14. Side skid
6. PTO shield
15. Cardan driveshaft
7. Implement Input Connection
16. Driveshaft support
8. Gearbox with free wheel inside
17. Tie-rod
9. Side transmission case
18. Hydraulic hoses
NOTE
To make the illustrations more clear, some images of this manual may refer to machines lacking of
some components (e.g. safety devices and barriers).

FLAIL MOWER – FMH Series
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2.4. CONFIGURATIONS
The FMH flail mower can be set in different configurations.
The standard configuration can be changed applying one or more optional parts, listed below:
STANDARD CONFIGURATION
• Mobile arc with hydraulic cylinder
• Rear roller
• Standard rear cover
• “Y” blades or hammers
OPTIONAL
• Mechanical shifting device (instead of hydraulic cylinder)
• Rear cover with raks (instead of standard rear cover)
• Rear floating wheels (instead of rear roller)

FLAIL MOWER – FMH Series
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2.5. TECHNICAL SPECIFICATIONS
FMH Series
12063
12069
12080
Overall dimensions
mm
1770x850x1130
1920x850x1130
2220x850x1130
Working width
mm
1600
1750
2050
inches
63”
69”
80”
Recommended tractor HP HP / Kw 30-60 / 22-44 30-60 / 22-44 30-60 / 22-44
3-point hitch type
-
Cat. I/II
Cat. I/II
Cat. I/II
Number of blades
N.
40
44
52
Number of hammers N. 20 22 26
PTO input speed
rpm
540
540
540
Rotor speed
rpm
2083
2083
2083
Side transmission - 4 belts 4 belts 4 belts
BX type
BX type
BX type
Side shift (max) mm / Inch 300 / 11.81 300 / 11.81 300 / 11.81
Rotor diameter
inches
6.25’’
6.25’’
6.25’’
mm
159
159
159
Rotor swing diameter mm 378 378 378
Approx Weight (driveline
not included) kg 412 434 482

FLAIL MOWER – FMH Series
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3. SAFETY
Proper use of the equipment, a strict observance of the safety messages listed below and application of all
reasonable practices to avoid any risks, prevents accidents or injury, allows the machine working better
and longer, and minimize the failures.
The manufacturer assumes no liability for any damage resulting from not applying the behavioral rules
indicated into the manual.
3.1. GENERAL SAFETY INSTRUCTION
DANGER
The machine must be used only by authorized and well trained operators. The operator must have read
and understood the instructions of this manual, it must make adequate preparation for the proper use of
the machine and must hold a driving license. In case of doubt about the use of the machine and/or the
interpretation of this manual, the operator must contact the Manufacturer or the Dealer.
WARNING
The manual must always remain with the machine. In case of loss or damage, request a new copy to the
Manufacturer or your Dealer.
WARNING
Follow strictly the rules prescribed by the safety pictograms applied to the machine.
WARNING
Be sure that all safety pictograms are legible. If pictograms are worn, they must be replaced with others
obtained from the Manufacturer, and placed in the position indicated by this manual.
DANGER
Before using the machine, make sure that all safety devices are installed and in good working conditions.
In case of damages of shields, replace them immediately.
DANGER
Is absolutely forbidden to remove or alter safety devices.
DANGER
Before starting, and during operation of the flail mower, make sure there are no people or animals in the
opera- tion area: the machine can project material from the back, with risks of serious injury or death.
DANGER
Pay maximum attention to avoid any accidental contact with rotating parts of the machine.
DANGER
During operation, adjustment, maintenance, repairing or transportation of the machine, the operator must
always use appropriate Personal Protective Equipment (PPE).

FLAIL MOWER – FMH Series
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DANGER
Do not operate the implement while wearing loose fitting clothing that can give rise to entanglement in
parts of the machine.
DANGER
Do not operate the implement when tired, not in good condition or under the influence of alcohol or drugs.
CAUTION
If the use of the machine is required at night or in conditions of reduced visibility, use the lighting system
of the tractor and possibly an auxiliary lighting system.
3.2. EQUIPMENT SAFETY INSTRUCTION
WARNING
Use the flail mower for its intended purpose only. Improper use can damage the flail mower and cause
serious injury to persons, animals, or death.
DANGER
The machine should be used by a single operator driving the tractor.
WARNING
Any unauthorized modification of the machine may cause problems in safety and relieves the Manufacturer
from any liability for damages or injuries that may result to operators, third parties and objects.
WARNING
Before using the machine, familiarize yourself with its controls and its working capacity.
WARNING
Do not leave the flail mower unattended with tractor engine running.
WARNING
Do not operate flail mower on too muddy, sandy or rocky soils.
WARNING
Keep the machine clean from debris and foreign objects which may damage functioning or cause injury.
WARNING
Do not use the machine if the category of the connecting pins of the flail mower does not match that of
the trac- tor hitch system.
WARNING
Do not use the machine with missing bolts, screws, pins or safety pins, safety guards etc.

FLAIL MOWER – FMH Series
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WARNING
Never use the machine to transport or lift people, animals or objects.
WARNING
Make certain, by adding front ballast, that at least 20% of the total weight (tractor, implement and ballast)
is on the front axle of the tractor, to ensure stability.
WARNING
Before engaging the tractor PTO, make sure the tractor PTO speed is set as required for the flail
mower (540 rpm). Do not over speed PTO or machine breakage may result.
DANGER
Do not operate the flail mower if the driveshaft is damaged. The driveshaft could be subject to breakage
during operation, causing serious injury or death. Remove the driveshaft and replace it with an
undamaged.
WARNING
With flail mower disconnected from tractor, rest the driveline on the provided support of the flail mower.
3.3. OPERATING SAFETY INSTRUCTION
WARNING
Before using the machine, be sure to have cleared the operating area from obstacles (stones, branches,
debris, etc...). Mark all the obstacles that cannot be eliminated (e.g. by means flags).
DANGER
Never engage the tractor PTO in the presence of people close to the driveshaft. The body, hair or clothing
of a person can get caught in rotating parts, causing serious injury or death.
DANGER
Before engaging the PTO and during all operations, make sure that no person or animal is in immediate
area of action of the machine. Never use the flail mower if people are in his working area.
DANGER
It’s absolutely forbidden to stand near the flail mower with moving parts.
WARNING
The operator must operate machine lifting/lowering only from the driving seat of the tractor. Do not per-
form lifting maneuvers on side or behind the tractor.
WARNING
Before making changes in direction, turns or going in reverse, slightly lift the flail mower from the
ground after disengaging the power take-off, to avoid damage to the machine.

FLAIL MOWER – FMH Series
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DANGER
In presence of steep slopes (greater than 15 degrees) the tilling action may cause instability of the tractor
with risk of serious injury or death hazard. Consult the manual for the tractor to determine the maximum
slope that the tractor is able to deal with.
DANGER
Always disengage the PTO before raising the flail mower, and never engage the PTO with the flail
mower in the raised position. The machine might throw objects at high speed, causing serious injury or
death.
WARNING
Never leave the driver’s seat when the tractor is turned on. Before leaving the tractor, lower the flail mower
to
the ground, disengage the PTO, insert the parking brake, stop engine and remove the key from the control
panel.
DANGER
The PTO shields of tractor and implement side, the driveshaft shielding and the driveshaft retaining chains
must be properly installed and in good condition, to avoid risk of entanglement with serious injury or death.
DANGER
Before engaging the PTO of the tractor, always make sure that the driveshaft is mounted in the correct
direction, and that its clamping elements are properly connected both to tractor side and to flail mower
side.
WARNING
Stop operating immediately if blades strike a foreign object. Repair all damage and make certain rotor and
blades are in good condition before resuming operation.
WARNING
Always disengage the tractor PTO when the driveshaft exceed an angle of 10 degrees up or down while
operating. An excessive angle with driveshaft rotating can break the driveshaft and cause flying projectiles.
CAUTION
Prolonged use of the flail mower can cause overheating of the gearbox. Do not touch the gearbox during
use and immediately after, it could be extremely hot and cause severe burn.
WARNING
All adjustment operations on the flail mower must be performed by qualified and trained operators, with
the trac- tor engine off, the PTO disengaged, the flail mower lowered to the ground or on security stands,
the ignition key off and the parking brake set.
3.4. TRANSPORTING SAFETY INSTRUCTION
WARNING

FLAIL MOWER – FMH Series
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FBefore transporting the machine, determine the stopping characteristics of the tractor and implement.
WARNING
Transport only at speeds where you can maintain control of the equipment.
WARNING
When driving on roads, the implement must be in transport position adequately raised from the road surfa-
ce, with tractor lifting hydraulics locked so that the flail mower cannot be lowered accidentally.
DANGER
The implement may be wider than the tractor. Pay attention during transporting to persons, animals or
obstacles exposed.
WARNING
When turning, use extreme care and reduce tractor speed.
WARNING
Do not operate the tractor with weak or faulty brakes or worn tires.
CAUTION
Always use tractor lighting system and auxiliary lighting system for an adequate warning to operators of
other vehicles, especially when transporting at night or in conditions of reduced visibility.
PERICOLO
In case is required the lifting of the machine, make sure that the lifting device chosen is suitable to perform
the operation safely, and use only the lifting points prescribed on flail mower.
3.5. MAINTENANCE SAFETY INSTRUCTION
WARNING
All maintenance and repairing operations must be performed by qualified and trained operators, with the
tractor engine off, the PTO disengaged, the flail mower lowered to the ground or on security stands, the
ignition key off and the parking brake set.
WARNING
Perform repairs and replacements necessary to the machine using only original spare parts provided by the
manufacturer or your Dealer.
DANGER
Perform maintenance operations always using appropriate Personal Protective Equipment (protective eye
glasses, hard hat, hearing protection, safety shoes, overall and work gloves, filter mask).

FLAIL MOWER – FMH Series
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CAUTION
Before any maintenance operation, make sure that the parts which may become hot during use (gear box)
have cooled.
WARNING
Do not perform repairs that you do not know. Always follow the manual instructions and in case of doubt
contact the Manufacturer or your Dealer.
DANGER
Do not swallow fuels or lubricants. In case of accidental contact with eyes, rinse well with water and con-
sult a doctor.
3.6. INFORMAZIONI RELATIVE ALL’IMMAGAZZINAMENTO
WARNING
Never leave the tractor unattended with the flail mower in lifted position. Accidental operation of lifting
lever or a hydraulic failure may cause sudden drop of unit with injury or death by crushing.
DANGER
Following operation, or before unhooking the machine, stop the tractor, set the brakes, disengage the PTO,
lower the flail mower to the ground, shut off the engine, remove the ignition key and wait for all moving
parts to stop.
WARNING
Make sure all parked machines are on a hard, level surface and engage all safety devices.
CAUTION
Place support blocks under flail mower as needed to prevent unit from tipping over onto a child and/or an
adult. A flail mower that tips over can result in injury or death.
CAUTION
Store the unit in an area away from human activity.
3.7. SAFETY LABELS
The safety labels on the machine provide key information for use in the safety of the machine.
Make sure all the labels are in good condition. If the labels are deteriorated, they must be replaced as with
others provided by the manufacturer,
and placed in the position shown in this manual. Make sure all the labels are readable. If necessary, clean
them using a cloth with soap and water.

FLAIL MOWER – FMH Series
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SAFETY LABELS POSITION AND DESCRIPTION
2
1
5
4
12
8976
13 11 3
3

FLAIL MOWER - FM
1Carefully read the operator’s manuals of the flail
mower, tractor and cardan shaft before using the
machine
2
Disengage the PTO, turn off the tractor engine,
remove the key and ensure that all rotating parts have
stopped before approaching the implement.
Read the operator’s manual before performing any
maintenance operation.
3Thrown or flying objects hazard.
Keep a safe distance from the machine.
4Rotating knives: severing of lower limbs hazard.
Keep a safe distance from the machine.
5Cutting of fingers or hand hazard. Wait
until all machine components have
completely stopped before touching them.
6Rotating belts: fingers or hand entanglement hazard.
Do not open or remove safety shields
while engine is running.
7Crushing hazard.
Stay clear of draft link lifting range while in operation.
18

FLAIL MOWER - FM Series
8Implement input driveline: body entanglement hazard.
Do not open or remove safety shields
while engine is running.
9Before engaging the tractor PTO, check that
rpm rate and sense of rotation are those
prescribed for the implement.
10 Lower limbs crushing hazard.
Keep a safe distance from the machine.
11 Crushing hazard.
Do not stand rear the machine.
12 Hydraulic lines under pressure: keep safe distance.
Before carrying out maintenance operations, ensure the line has
been previously depressurised and does not contain any hot
fluid
13
Always wear protective clothing and equipment
appropriate for the job:
hearing protection, safety shoes, safety gloves,
safety glasses and overall.
19

FLAIL MOWER - FM Series
4. SET UP
The flail mower is delivered equipped with a driveshaft and related operating manual.
When the machine is delivered, check that there is no damage to the flail mower or driveshaft. In case of
damage or missing parts immediately notify the Manufacturer or your Dealer.
Because of his size, the machine could be delivered with some parts to be assembled.
In this case, the assembly of such parts is an owner’s task, and must be performed carfefully, with referen-
ce to the tables of the Spare parts section.
WARNING
For proper tightening torques of bolts and screws, refer to the table in this manual.
4.1. CONNECTING TO THE TRACTOR
The flail mower is designed to be mounted on tractors equipped with 3-point Hitch Category I (ISO
730 standard).
To connect the flail mower to the tractor the operator must do the following:
•drive the tractor in reverse, up to align the rear lifting arms to lower hitches of the flail mower in parking
(see picture below);
•set the tractor’s parking brake, stop engine, remove the ignition key and get off the tractor;
•connect the lifting arms of the tractor to the lower hitches of the flail mower, and the 3-point top link to
the upper hitch of the flail mower, through the use of the pins and the relative safety split pins;
• raise the flail mower until PTOs of tractor and machine are at the same height, then adjust the 3-point
top link so that the front of the machine is leveled to the back (the axis of the flail mower PTO must be
parallel to the ground), in order to limit stress transmitted to the flail mower through the cardan shaft;
• make sure that left side of the flail mower is leveled with the right, by adjusting the tractor lifting arms,
then lock the arms to prevent swinging that could compromise the stability of tractor and machine;

FLAIL MOWER - FM Series
•finally adjust the parking stand, placing it at the highest point by means of the related elastic pin.
WARNING
Before connect the flail mower to the tractor, make sure that tractor and flail mower are on a flat, stable and
dry surface
4.2. DRIVELINE INSTALLATION
The gearbox unit is equipped with a free wheel inside, able to absorbe the rotor inertia during stop- ping,
and to prevent possible damage to the transmission system machine-tractor that would be caused by an
instantaneous stop of the rotor.
Consequently, the use of a cardan shaft with free wheel is not required.
Before installing the driveshaft, the operator must read the manuals of driveshaft and tractor, checking in
particular that rpm and direction of rotation of the tractor PTO match those of the flail mower.
If the direction of rotation of the PTO tractor does not match that of the machine, contact the Manufacturer
or your Dealer.
To connect the driveshaft to the tractor and implement, the operator must:
•park tractor and flail mower on a flat surface, with parking brake set, engine off, and ignition key
removed;
•check that driveshaft, flail mower and tractor are in good condition, otherwise provide for their
replacement;
•remove the PTO shield of the flail mower through the fixing screws;
•insert the driveline yoke on the implement PTO by first lining up the splines, then ensure its tightening
onto the shaft through its fastener/snap pin;
•replace the PTO shield of the flail mower through the fixing screws;
•insert the driveshaft yoke on the tractor PTO, then ensure its tightening onto shaft through its fastener;
•hook to the tractor and flail mower the two retaining chains of the driveline shielding, to prevent
shielding rotation during functioning of the machine.
DRIVELINE LENGTH CHECK
Before operating the flail mower, ensure that the size of driveshaft is adequate. The driveshaft
supplied with the machine has a standard length, therefore it may need an adaptation of the
length, depending of the tractor which the flail mower is combined.
The length of the driveshaft must be such to:
•avoid bottom out of the transmission tubes, when the driveshaft is in compressed position (when flail
mower is raised up off the ground);
•ensure an overlapping of the transmission tubes enough to transmit the torque required, when the
driveshaft is in max extension (when flail mower is in its lowest position in the ground).
When the driveshaft is at its minimum length (max compressed position), there must be at least a
2 cm of distance between the ends of each transmission tube and the yokes side.
When the driveshaft is at its maximum operational extension, there must be an overlap between
the tubes profiles of 15 cm at least.