Sundown Audio SFM SERIES Product manual

FLAIL MOWER
SFM SERIES
MODELS SFM145-160-175-205-
220
OPERATOR'S
AND
PARTS MANUAL
Tirth Agro Technology Pvt. Ltd.
ISO 9001:2008 Certified Company

REV_DIC_2014_ENG
Congratulation for purchasing your new SUNDOWN Flail Mower!
This machine has been designed and manufactured following all safety and quality requirements needed
for a safe and satisfactory use over time.
A careful 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 safety rules of use will allow to obtain the best performance
and a long service life of 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.

TO THE PURCHASER
This manual contains valuable information about SUNDOWN 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 tiller, 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 tiller may need new parts to replace those are
worn or broken. If so, go to nearest SUNDOWN dealer and provide him the model
and part number.
Customer information
Name ____________________________________________________________
Purchased from_____________________________________________________
Purchased date______________________________________________________
Model No.__________________________________________________________
Serial No.___________________________________________________________

TABLE OF CONTENS
1. ABOUT THIS MANUAL 5
2. INTRODUCTION 5
2.1. MACHINE IDENTIFICATION 5
2.2. INTENDED USE 6
2.3. MAIN PARTS DESCRIPTION 7
2.4. CONFIGURATION 8
2.5. TECHNICAL SPECIFICATION 9
3. SAFETY 10
3.1. GENERAL SAFETY INSTRUCTIONS 10
3.2. EQUIPMENT SAFETY INSTRUCTIONS 11
3.3. OPERATING SAFETY INSTRUCTIONS 12
3.4. TRANSPORTING SAFETY INSTRUCTIONS 13
3.5. MAINTENANCE SAFETY INSTRUCTIONS 14
3.6. STORAGE SAFETY INSTRUCTIONS 15
3.7. SAFETY LABELS 15
4. SET UP 19
4.1. CONNECTING TO THE TRACTOR 19
4.2. DRIVELINE INSTALLATION 20
4.3. TRACTOR-FLAIL MOWER STABILITY
21
5. OPERATING 22
5.1. STRT-UP 22
5.2. OPERATING INSTRUCTIONS 23
5.3. ADJUSTMENTS 25
5.4. STOPPING AND DISCONNECTION 32
5.5. TRASPORTATION 32
6. MAINTENANCE 33
6.1. ROTOR TOOLS REPLACEMENT 33
6.2. GEARBOX LUBRICATION 35
6.3. ROTOR BEARINGS LUBRICATION 36
6.4. ROLLER BEARINGS LUBRICATION 36
6.5. WHEELS BRACKETS LUBRICATIONS 37
6.6. 3-POINT HITCH LUBRICATION 37
6.7. DRIVE BELTS REPLACEMENT 38
6.8. DRIVESHAFT MAINTENANCE 38
7. STORAGE 38
8. SCRAPING 38
9. TROUBLESHOOTING 39
10. TORQUE VALUES TABLE 40
11. SPARE PARTS 40
12. WARRANTY 53
13. “CE” DECLARATION OF CONFORMITY 53

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”)
• Speed required at Implement Input Connection (“INPUT”).
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.

2.2. INTENDED USE
The 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 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.

2.3. MAIN PARTS DESCRIPTION
1.
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).

2.4. CONFIGURATIONS
The 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)
2.5. TECHNICAL SPECIFICATIONS
Technical specification of all models is as given in table.

SPECIFICATION
220
237x85x113
220
87’’
30-60
Cat. I/II
56
28
540
2083
4 belts
BX type
30
6.25’’
159
378
506
205
222x85x113
205
80”
30-60
Cat. I/II
52
26
540
2083
4 belts
BX type
30
6.25’’
159
378
482
175
192x85x113
175
69”
30-60
Cat. I/II
44
22
540
2083
4 belts
BX type
30
6.25’’
159
378
434
160
177x85x113
160
63”
30-60
Cat. I/II
40
20
540
2083
4 belts
BX type
30
6.25’’
159
378
412
145
162x85x113
145
57”
30-60
Cat. I/II
36
18
540
2083
4 belts
BX type
30
6.25’’
159
378
388
130
145x85x113
130
51"
30-60
Cat. I/II
32
16
540
2083
3 belts
BX type
30
6.25’’
159
378
366
115
130x85x113
115
45"
30-60
Cat. I/II
28
14
540
2083
3 belts
BX type
FIX
MOUNTING
159
378
320
100
115x85x113
100
39"
30-60
Cat. I/II
24
12
540
2083
3 belts
BX type
FIX
MOUNTING
159
378
300
85
100x85x113
85
33"
30-60
Cat. I/II
20
10
540
2083
3 belts
BX type
FIX
MOUNTING
159
378
278
Cm
cm
inches
HP
-
N.
N.
rpm
rpm
-
cm
inches
mm
mm
Kg
MODEL SPECIFICATION
Working width
Recommended tractor HP
3-point hitch type
Number of blades
Number of hammers
PTO input speed
Rotor speed
Side transmission
Side shift (max)
Rotor diameter
Rotor swing diameter
Approx Weight (driveline not
included)

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).

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
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.

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.

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
Before 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).

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 STORAGE SAFETY INSTRUCTIONS
WARNING
Never leave the tractor unattended with the tiller 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 tiller, stop the tractor, set the brakes, disengage the PTO, lower
the attached tiller to the ground, shut off the engine, remove the ignition key and wait for all moving parts to
stop.
DANGER
Make sure all parked machines are on a hard, level surface and engage all safety devices.
CAUTION
Place support blocks under tiller as needed to prevent unit from tipping over onto a child and/or an adult. A
tiller 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 applied on the machine give fundamental information for using the machine safely.
Make sure safety labels are in good conditions. If pictograms are worn, they must be replaced with others
obtained from the manufacturer and placed in the position indicated by this manual.
Make sure the safety labels are legible. If necessary, wipe them by a cloth, with soap and water.

SAFETY LABELS POSITION AND DESCRIPTION
1
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.
Thrown or flying objects hazard

2
Safety Wear
3
Crushing hazards & Thrown or Flying objects hazards.
4
Operate only with 540 rpm PTO.
5
Rotating Gears
6
Oil filling point
7
Lifting point
8
Grease filling point
9
Hand Hazard