MODERN AG 12' Viper Cutter Owner's manual

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Operators Manual
12’ VIPER CUTTER
Go Galvanized!
02'(51
$*352'8&76/7'
YOU’RE ALWAYS AHEAD... WITH A MODERN BEHIND.
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www.modernusa.com
001-1202
· 9,3(5
9,3(5
INTRODUCTION
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TKLs RoWar\ CuWWer Ls desLJned wLWK care and EuLOW wLWK TuaOLW\ maWerLaOs E\ sNLOOed worNers. ProSer
assemEO\ maLnWenance and oSeraWLnJ SracWLces as descrLEed Ln WKLs manuaO wLOO KeOS WKe owner
operator get years of satisfactory service from the machine.
The purpose of this manuaO is to famiOiari]e instruct and train. The AssemEOy Section instructs the
owneroperator in the correct assemEOy of the Cutter using standard and optionaO eTuipment. The
Parts Listing section is designed to famiOiari]e the owneroperator with repOaceaEOe parts on the
Cutter. This section provides e[pOoded assemEOy drawings of each cutter component iOOustrating
each piece and the corresponding part numEer.
CarefuO use and timeOy service save e[tensive repairs and costOy downtime Oosses. The Operation
and Maintenance Sections of the manuaO train the owneroperator how to worN the Cutter
correctOy and attend to appropriate maintenance. The TrouEOe Shooting *uide heOps diagnose
difÀcuOties with the cutter and offers soOution to the proEOems.
Safety is of primary importance to the owneroperator and to the manufacturer. The Àrst section
of this manuaO incOudes a Oist of Safety Messages that if foOOowed wiOO heOp protect the operator
and Eystanders from inMury or death. Many of the Safety Messages wiOO Ee repeated throughout
the manuaO. The owneroperatordeaOer shouOd Nnow these Safety Messages Eefore assemEOy
and Ee aware of the ha]ards of operating this cutter during assemEOy use and maintenance. The
Safety AOert SymEoO comEined with a SignaO Word as seen EeOow is intended to warn the owner
operator of impending ha]ards and the degree of possiEOe inMury faced when operating this
machine.
Indicates an imminentOy ha]ardous situation that if not avoided WILL resuOt in DEATH OR
VERY SERIOUS INJURY.
Indicates an imminentOy ha]ardous situation that if not avoided COULD resuOt in DEATH
OR SERIOUS INJURY.
Indicates an imminentOy ha]ardous situation that if not avoided MAY resuOt in MINOR
INJURY.
IdentiÀes speciaO instructions or procedures that if not strictOy oEserved couOd resuOt in
damage to or destruction of the machine attachments or the environment.
CAUTION
WARNING
DANGER
INTRODUCTION
A safe and carefuO operator is the Eest operator. Safety is of primary importance to the
manufacturer and shouOd Ee to the owneroperator. Most accidents can Ee avoided Ey Eeing
aware of your eTuipment your surroundings and oEserving certain precautions. The safety
section of this manuaO incOudes a Oist of guideOines that if foOOowed wiOO heOp protect the operator
and Eystanders from inMury or death. READ UNDERSTAND and )OLLOW the foOOowing safety
guideOines Eefore assemEOing operating or servicing this impOement. Serious inMury or death may
occur unOess care is taNen to foOOow the warnings and instructions stated in these Safety guideOines.
Practice aOO usuaO and customary safe worNing precautions and aEove aOO ² rememEer safety is up
to YOU.
OnOy YOU can prevent serious inMury or death from unsafe practices.
This eTuipment shouOd onOy Ee operated Ey those persons who have read the manuaO who are
responsiEOe and trained and who Nnow how to do so safeOy and responsiEOy.
Si no Oee ingOes pida ayuda a aOguien Tue si Oo Oea para Tue Oe tradu]ca Oas medidas de seguridad.
General Safety Guidelines
Never operate the tractor or impOement untiO you have read and compOeteOy understand this
manual and the tractor operators manual. Learn how to stop the tractor engine suddenly in
an emergency. Never allow ine[perienced or untrained personnel to operate the tractor and
implement without supervision. MaNe sure the operator has fully read and understood the
manuals prior to operation.
The operator and all support personnel should wear hard hats safety shoes safety glasses and
proper hearing protection at all times for protection from inMury including inMury from items that
may Ee thrown Ey the eTuipment.
Never allow children to operate ride on play on or around or come close to the tractor or
implement. Children can slip or fall off the eTuipment and Ee inMured or Nilled. Usually 1-1
year-old children who are mature and responsiEle can operate the implement with adult
supervision if they have read and understand the operators manuals Eeen trained in proper
operation of the tractor and implement and are physically large enough to reach and operate
the controls easily.
NEVER use drugs or alcohol immediately Eefore or while operating the tractor and implement.
Drugs and alcohol will affect an operators alertness and coordination and therefore affect the
operators aEility to operate the eTuipment safely. Before operating the tractor or implement
an operator on prescription or over-the-counter medication must consult a medical professional
regarding any side effects of the medication that would hinder their aEility to operate the
eTuipment safely. NEVER Nnowingly allow anyone to operate this eTuipment when their
alertness or coordination is impaired. Serious inMury or death to the operator or others could
result if the operator is under the inÁuence of drugs or alcohol.
SAFETY SECTION
SAFETY SECTION
·9,3(5 6
Prolonged tractor operation may cause operator Eoredom and fatigue affecting safe operation.
TaNe scheduled worN EreaNs to help prevent these potentially impaired operating conditions.
Never operate the implement and tractor in a fatigued or Eored mental state which impairs
proper and safe operation.
Tractors with or without an implement attached can often Ee noisy enough to cause permanent
hearing loss. We recommend that you always wear hearing protection if the noise in the
operators position e[ceeds dE. Noise over 5dE over an e[tended period of time will cause
severe hearing loss. Noise over dE adMacent to the Operator over an e[tended period of time
will cause permanent or total hearing loss.
Note: Hearing loss from loud noise [from tractors, chain saws, radios, and other such sources close to the ear] is
cumulative over a lifetime without hope of natural recovery.
General Safety – Rotating Equipment
The rotating parts of this machine continue to rotate even after the PTO has Eeen turned off.
The operator should remain in his seat for  seconds after the EraNe has Eeen set the PTO
disengaged the tractor turned off and all evidence of rotation has ceased.
Do not put hands or feet under implement decNs. Blade contact can result in serious inMury or
even death. Stay away until all motion has stopped and the decNs are securely ElocNed up.
Do not operate the implement while wearing loose Àtting clothing. Entanglement of the
clothing with the rotating elements can result in serious inMury or even death. .EEP AWAY )ROM
ROTATIN* ELEMENTS to prevent entanglement and possiEle serious inMury or death.
*eneral Safety ² Hot Surfaces )ire Safety
)ollow these guidelines to reduce the risN of eTuipment and grass Àres while operating
servicing and repairing the tractor andor implement
à ETuip the tractor with a Àre e[tinguisher in an accessiEle location.
à Do Not operate the implement on a tractor with an underframe e[haust.
à Do Not smoNe or have an open Áame near the tractor andor implement.
à Do Not drive into Eurning deEris or freshly Eurnt areas.
à Ensure slip clutches are properly adMusted to prevent e[cessive slippage and plate heating.
à Never allow clippings or deEris to collect near drivelines slip clutches and gearEo[es.
Avoid contact with hot surfaces including hydraulic oil tanNs pumps motors valves and hose
connections engine or mufÁer. Relieve hydraulic pressure Eefore performing maintenance or
repairs. Use gloves and eye protection when servicing hot components. Contact with a hot
surface or Áuid can cause serious inMury from Eurns or scalding.
·9,3(5
SAFETY SECTION
Equipment Operation Safety
All Safety Shields *uards and Safety devices including Eut not limited to - the DeÁectors Chain
*uards Steel *uards *earEo[ Shields PTO integral shields and RetractaEle Door Shields should
Ee used and maintained in good worNing condition.
All safety devices should Ee inspected carefully at least daily for missing or EroNen components.
Missing EroNen or worn items must Ee replaced at once. BroNen or worn Elades must Ee
replaced with NEW Elades to reduce the possiEility of inMury or death from thrown oEMects
entanglement or Elade contact. NEVER ATTEMPT TO STRAI*HTEN WELD OR WELD
HARD)ACIN* ON BLADES SINCE THIS WILL LI.ELY CRAC. OR OTHERWISE DAMA*E THE BLADE
WITH SUBSE4UENT )AILURE AND POSSIBLE SERIOUS INJURY )ROM THROWN BLADES.
Operate the tractor andor implement controls only while seated in the tractor seat with the
seat Eelt securely fastened around you. Inadvertent movement of the tractor or implement may
cause serious inMury or death. Do not mountdismount the tractor while the tractor or implement
parts are moving. Mount the tractor only when the tractor and all moving parts are completely
stopped.
BE)ORE leaving the tractor seat always engage the EraNe andor set the tractor transmission in
parNing gear disengage the PTO stop the engine remove the Ney and wait for all moving parts
to stop. Place the tractor shift lever into a low range or parNing gear to prevent the tractor from
rolling. Never dismount a tractor that is moving or while the engine is running.
Never leave the tractor and implement unattended while the implement is in the lifted position.
Accidental operation of lifting lever or a hydraulic failure may cause sudden drop of theunit
possiEly resulting in inMury or death Ey crushing. Lower the implement carefully to the ground.
Do not put hands or feet under lifted components.
Do not e[ceed the rated PTO speed for the implement. E[cessive PTO speeds can cause
implement driveline or Elade failures resulting in serious inMury or death.
MaNe sure the PTO shield integral driveline shields and input shields are installed when using
PTO-driven eTuipment.
DO NOT operate this implement on a tractor that is not properly maintained. In case of
mechanical difÀculty during operation place the transmission in the parN position set the
parNing EraNe shut down all power including the PTO and the engine and remove the Ney. Wait
until all rotating motion has stop Eefore dismounting and perform repairs Eefore resuming
operation. Serious inMury and possiEle death could occur from not maintaining this implement
and tractor in good operating condition.
Do not operate implement if e[cessive viEration e[ists. Shut down PTO and the tractor engine.
Inspect the implement to determine the source of the viEration. If implement Elades are missing
SAFETY SECTION
or
d
amage
d
rep
l
ace t
h
em
i
mme
di
ate
l
y.
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o not operate t
h
e
i
mp
l
ement unt
il
t
h
e
El
a
d
es
h
ave
Eeen replaced and the implement operates smoothly. Operating the implement with e[cessive
viEration can result in component failure and EroNen oEMects to Ee thrown outward at very high
velocities. To reduce the possiEility of property damage serious inMury or even death never
allow the implement to Ee operated with Elades missing.
Do not operate this eTuipment with hydraulic oil or fuel leaNing. Oil and fuel are e[plosive and
their presence could present a ha]ard. Do not checN for leaNs with your hand High-pressure oil
streams from EreaNs in the line could penetrate the sNin and cause tissue damage.
- To checN for a hose leaN SHUT the tractor EN*INE O)) and remove all hydraulic pressure. Wear
oil impenetraEle gloves safety glasses and use cardEoard to checN for evidence of oil leaNs.
- If you suspect a leaN REMOVE the HOSE and have it tested at a Dealer. If oil does penetrate
the sNin have the inMury treated immediately Ey a physician NnowledgeaEle and sNilled in this
procedure. Always read carefully and comply fully with the manufacturers instructions when
handling oil solvents cleansers and any other chemical agent.
Mow at the speed that you can safely operate and control the tractor and implement. Safe
mowing speed depends on terrain condition and grass type density and height of cut. Normal
ground speed range is from to 5 mph. Use slow mowing speeds when operating on or near
steep slopes ditches drop-offs overhead oEstructions power lines or when deEris and foreign
oEMects are to Ee avoided.
Avoid mowing in reverse direction when possiEle. ChecN to maNe sure there are no persons
Eehind the implement and use e[treme care when mowing in reverse. Mow only at a slow
ground speed where you can safely operate and control the tractor and implement. Never mow
an area that you have not inspected and removed deEris or foreign material.
The implement is designed for certain mowing applications and is rated to cut up to a speciÀc
si]e vegetation see implement Standard eTuipment and SpeciÀcations on page 1. DO NOT
use this implement to cut vegetation aEove the implement’s rated capacity or to cut any type of
non-vegetative material. Only operate this implement on a properly si]ed and eTuipped tractor.
Operating this implement in an application for which it is not designed andor operating the
implement with the wrong si]e tractor can cause implement component damage and eTuipment
failure resulting in possiEle serious inMury or death.
Do not operate or pull the implement into standing water. When uplift or fan type implement
Elades contact water they can Ee severely deÁected downward causing possiEle failure of Elade
resulting in serious Eoldly inMury to the operator or Eystanders.
Do not mow with two machines in the same area e[cept with caE tractors with the windows
closed.
Do Not attempt to raise or lower the implement wing unless the implement tongue is securely
attached to the tractor drawEar. The implement could tip over and cause eTuipment damage
·9,3(5
SAFETY SECTION
and possiEle serious inMury or death. Raise or lower the implement wing only while seated in the
tractor operators seat with the seat Eelt securely fastened.
Do not turn so sharp or lift implement so high to produce a severe ´NnocNingµ of the driveline
which will cause accelerated wear and EreaNage of drive train components and could result in
possiEle inMury from the separated Driveline sections.
Periodically shut down the tractor and implement and clean clippings and collected deEris from
the implement decN. DO NOT approach the implement unless the tractor is turned off and all
motion has ceased.
Never crawl under a raised implement supported solely Ey the tractor -Point hitch. Release of
the control lever or mechanical failure will result in the implement falling and possiEle inMury or
death. Always securely ElocN up the implement Eefore crawling underneath to perform repairs
and service. DO NOT allow any person under a folded wing unless wing is securely locNed up or
supported.
Equipment Operation Safety – Clearances and Obstructions
Rotary implements are capaEle under adverse conditions of throwing oEMects for great distances
 feet or more and causing serious inMury or death. )ollow safety guidelines carefully.
STOP MOWIN* I) PASSERSBY ARE WITHIN 1 YARDS
Be sure you have adeTuate Nnowledge of the property you will Ee worNing on. TaNe time to
maNe yourself aware of any area underground lines or caEles. Always Neep a careful looNout
and use e[treme care when worNing around utility and municipal oEstructions. Never allow the
implement to contact any utility municipal or other type structure. Clearly marN all mowing
oEstructions and consult local utility providers for a safe code of operation.
Mow only in conditions where you have clear visiEility in daylight or with adeTuate artiÀcial
lighting. Never mow in darNness or foggy conditions where you cannot clearly see at least 1
yards in front and to the sides of the tractor and implement. MaNe sure that you can clearly see
and identify passersEy steep slopes ditches drop-offs overhead oEstructions power lines
deEris and foreign oEMects. If you are unaEle to clearly see these types of items discontinue
mowing.
This implement is wider than the tractor. Be careful when operating or transporting this
eTuipment to prevent the implement from running into or striNing sign posts guard rails
concrete aEutments or other solid oEMects. Such an impact could cause the implement and
tractor to pivot violently resulting in loss of steering control serious inMury or even death. Never
allow the implement to contact oEstacles.

SAFETY SECTION
U
se e[treme care w
h
en
l
ower
i
ng or un
f
o
ldi
ng t
h
e
i
mp
l
ement
s w
i
ngs.
M
a
N
e sure no
E
ystan
d
ers
are close Ey or underneath the wings. Allow ample clearance around the implement when
folding or unfolding the wings.
The rotating parts of this machine have Eeen designed and tested for rugged use. However the
Elades could fail upon impact with heavy solid oEMects such as metal guard rails and concrete
structures. Such impact could cause the EroNen oEMects to Ee thrown outward at very high
velocities. To reduce the possiEility of property damage serious inMury or even death never
allow the cutting Elades to contact such oEstacles.
E[treme care should Ee taNen when operating near loose oEMects such as gravel rocNs wire
and other deEris. Inspect the area Eefore mowing. )oreign oEMects should Ee removed from the
site to prevent machine damage andor Eodily inMury or even death. Any oEMects that cannot
Ee removed must Ee clearly marNed and carefully avoided Ey the operator. Stop mowing
immediately if Elades striNe a foreign oEMect. Repair all damage and maNe certain rotor or Elade
carrier is Ealanced Eefore resuming mowing.
This machine is often operated in heavy Erush and in heavy weeds. The Elades of this implement
can throw oEMects if shields are not properly installed and maintained. Serious inMury or even
death may occur unless care is taNen to insure the safety of the operator Eystanders or
passersEy in the area. Do not operate this machine with anyone in the immediate area. Stop
mowing if anyone is within 100 yards of implement.
Note: Where there are grass and weeds high enough to hide debris that could be struck by the blades, the
area should be: inspected and large debris removed, mowed at an intermediate height, inspected, closely with
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required to mow, reduce wear and tear on the implement drivetrain, spread cut material better, eliminate
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Many varied oEMects such as wire caEle rope or chains can Eecome entangled in the operating
parts of the implement head. These items could then swing outside the housing at greater
velocities than the Elades. Such a situation is e[tremely ha]ardous and could result in serious
inMury or even death. Inspect the cutting area for such oEMects Eefore mowing. Remove any liNe
oEMect from the site. Never allow the cutting Elades to contact such items.
Do not let the Elades turn when the implement decN is raised for any reason including clearance
or for turning. Raising the implement decN e[poses the cutting Elades which creates a potentially
serious ha]ard and could cause serious inMury or even death from oEMects thrown from the
Elades.
Do Not operate this eTuipment in areas where insects such as Eees may attacN you andor
cause you to lose control of the eTuipment. If you must enter in such areas use a tractor with
an enclosed caE and close the windows to prevent insects from entering. If a tractor caE is not
availaEle wear suitaEle clothing including head face and hand protection to shield you from the
insects. AttacNing insects can cause you to lose control of the tractor which can result in serious
inMury or death to you or Eystanders. Never dismount a moving tractor.

·9,3(5
SAFETY SECTION
Connecting or Disconnecting Implement Safety
Always shut the tractor completely down place the transmission in parN and set the parNing
EraNe Eefore you or anyone else attempts to connect or disconnect the implement and tractor
hitches.
DO NOT use a PTO adapter to attach a non-matching implement driveline to a tractor PTO.
Use of an adapter can douEle the operating speed of the implement resulting in e[cessive
viEration thrown oEMects and Elade and implement failure. Adapter use will also change the
worNing length of the driveline e[posing unshielded driveline areas. Serious Eodily inMury and
or eTuipment failure can result from using a PTO adapter. Consult an authori]ed dealer for
assistance if the implement driveline does not match the tractor PTO.
When attaching the implement input driveline to the tractor PTO it is important that the
connecting yoNe spring activated locNing collar slides freely and the locNing Ealls are seated
securely in the groove on the tractor PTO shaft. A driveline not attached correctly to the tractor
PTO shaft could come loose and result in personal inMury and damage to the implement.
Before operating the implement checN to maNe sure the implement input driveline will not
Eottom out or Eecome disengaged. Bottoming out occurs when the inner shaft penetrates the
outer housing until the assemEly Eecomes solid-it can shorten no more. Bottoming out can
cause serious damage to the tractor PTO Ey pushing the PTO into the tractor and through the
support Eearings or downward onto the PTO shaft EreaNing it off. A EroNen drive line can cause
personal inMury.
On a fully-assemEled unit do not remove the transport Ears until hoses are attached to the
tractor and the Wing Cylinders are Àlled with oil. Lower the wings slowly and carefully. .eep
Eystanders away during operations.
Never unhitch without using the Tongue JacN. The Tongue is very heavy. Attempting to lift the
Tongue without using the Tongue JacN could cause strains or other inMury. Allowing the tongue
to fall suddenly and une[pectedly could result in crushing inMury. Use the Tongue JacN for lifting
the implement only. Overloading the Tongue JacN can cause failure with possiEle serious Eodily
inMury or even death.
To prevent tipping of implement when stored in folded position use carrying wheels or
adeTuate stands on center frame.

SAFETY SECTION
Transporting Safety
Only tow the implement Eehind a properly si]ed and eTuipped tractor which e[ceeds the
weight of the implement Ey at least 0. DO NOT tow the implement Eehind a trucN or other
type of vehicle. Never tow the implement and another implement connected in tandem. Never
tow the implement at speeds over 0 MPH.
Secure the implement for transport Eefore traveling on puElic roads. )or pull-type implements
secure the center a[le using cylinder stops or transport pin and properly attach a safety chain
Eetween the implement and tractor. Secure wings in upright position on folding implements
using wing transport locNs.
MaNe certain Eefore transporting that a ´Slow Moving Vehicleµ SMV sign is installed in such
a way as to Ee clearly visiEle and legiEle. When transporting the implement use the tractor
Áashing warning lights and follow all local trafÀc regulations.
Your driving vision may Ee reduced or impaired Ey the tractor caE or implement. Before driving
on puElic roadways identify any limited vision areas and maNe adMustments to your operating
position mirrors and the implement transport position so that you can clearly see the area
where you will Ee traveling and any trafÀc that may approach you. )ailure to maintain adeTuate
vision of the puElic roadway and trafÀc can result in serious inMury or even death.
Understand the tractor and implement and how it handles Eefore transporting on streets and
highways. MaNe sure the tractor steering and EraNes are in good condition and operate properly.
Transport only at speeds where you can maintain control of the eTuipment. Serious accidents
and inMuries can result from operating this eTuipment at high speeds. Before transporting the
tractor and implement determine the proper transport speeds for you and the eTuipment. MaNe
sure you aEide Ey the following rules
- Test the tractor at a slow speed and increase the speed slowly. Apply the BraNes smoothly to
determine the stopping characteristics of the tractor and implement. As you increase the speed
of the tractor the stopping distance increases. Determine the ma[imum transport speed not to
e[ceed 0 mph 0 Nph for towing this eTuipment.
- Test the eTuipment at a slow speed in turns. Increase the speed through the turn only after you
determine that it is safe to operate at a higher speed. Use e[treme care and reduce your speed
when turning sharply to prevent the tractor and implement from turning over. Determine the
ma[imum safe turning speed for you and this eTuipment Eefore operating on roads or uneven
ground.

·9,3(5
SAFETY SECTION
- Be aware of the operating conditions. Do not operate the tractor with weaN or faulty EraNes
or worn tires. When operating down a hill or on wet or rain slicN roads the EraNing distance
increases use e[treme care and reduce your speed. When operating in trafÀc always use the
tractors Áashing warning lights and reduce your speed. Be aware of trafÀc around you and
watch out for the other guy.
Turn curves or go up hills only at a low speed and using a gradual steering angle. Rear mounted
implements move the center of gravity to the rear and remove weight from the front wheels.
MaNe certain Ey adding front Eallast that at least 0 of the tractors weight is on the front
wheels to prevent rearing up loss of steering control or tractor tip-over.
When the wings are folded for transport the center of gravity is raised and the possiEility
of overturn is increased. Drive slowly and use e[treme caution when turning on hillsides.
Overturning the implement could cause the implement to overturn the tractor and vice versa
resulting in serious inMury or even death. Never fold wings on a hillside...the implement may
overturn.
Slow down on rough or uneven surfaces to prevent loss of steering control which could result in
property damage or possiEle inMury. Do not transport unless -Point lift lever is fully raised and
in the latched transport position. Dropping implement in transport can cause serious damage to
the tractor andor implement and possiEly cause the operator or others to Ee inMured or Nilled.
In wet conditions where there is a liNelihood of material collecting on the implement maNe
certain that e[cess material is removed Eefore traveling on puElic roadways.
Allow sufÀcient clearance for the implement to swing outward while turning. Implements carried
Eehind the tractor will swing outside the tire path when maNing turns. Contacting a solid oEMect
while turning will cause eTuipment damage and possiEle inMury.
Always Neep a careful looNout and use e[treme care when transporting around overhead
oEstructions and electrical power lines. The implement wing can Ee over 10 feet high. Never
allow the implement wing to come within 10 feet of any power line.
Maintenance and Service Safety
Periodically inspect all moving parts for wear and replace when necessary with authori]ed
service parts. LooN for loose fasteners worn or EroNen parts and leaNy or loose Àttings. MaNe
sure all pins have cotter pins and washers. Serious inMury may occur from not maintaining this
machine in good worNing order.
Perform service repairs and luErication according to the maintenance section. Ensure the
unit is properly luEricated as speciÀed in the luErication schedule and all Eolts and nuts have
proper torTue. )ailure to properly service repair and maintain this implement in good operating
condition could cause component failure and possiEle serious inMury or even death.

SAFETY SECTION
Use e[treme caution when getting onto the implement to perform repairs maintenance and
when removing accumulated material. Only stand on solid Áat surfaces to ensure good footing.
Use a ladder or raised stand to access high spots which cannot Ee reached from ground level.
Slipping and falling can cause serious inMury or death.
Never worN under the implement the frameworN or any lifted component unless the implement
is securely supported or ElocNed up to prevent sudden or inadvertent falling which could cause
serious inMury or even death.
Never attempt to luEricate adMust or remove material from the implement while it is in motion
or while tractor engine is running. MaNe sure the tractor engine is off the transmission in parN
the parNing EraNe set and that the Ney is with you Eefore worNing on the implement.
Relieve hydraulic pressure prior to doing any maintenance or repair worN on the implement.
Place the implement on the ground or securely ElocNed up disengage the PTO and turn off the
tractor engine. Push and pull the Remote Cylinder lever in and out several times prior to starting
any maintenance or repair worN.
Never interfere with factory-set hydraulic caliErations. Any change in caliEration could cause a
failure of the eTuipment and may result in inMury.
Always disconnect the main PTO Driveline from the tractor Eefore performing service on
the implement. Never worN on the implement with the tractor PTO driveline connected and
running. Rotating Parts Elades or drivelines could turn without warning and cause immediate
entanglement inMury or death.
DO NOT weld or repair rotating implement components. Welds and other repairs may cause
severe viEration andor component failure resulting in part Eeing thrown from the implement
causing serious Eodily inMury. See your Authori]ed Dealer for proper repairs.
DO NOT weld or perform hot worN on galvani]ed implements. HeatingEurning of galvani]ing
material may release fumes which can Ee harmful to your health.
Do not modify or alter this implement. Do not permit anyone to modify or alter this implement
any of its components or any implement function.
Parts Information
Modern Ag implements use Ealanced and matched system components for Elade carriers
Elades cuttershafts Nnives Nnife hangers rollers drivetrain components and Eearings. These
parts are made and tested to Modern Ag speciÀcations. Always replace Elades with original
eTuipment manufacturer Ealanced Elade sets. Non-genuine ´will Àtµ parts do not consistently

·9,3(5
SAFETY SECTION
meet these speciÀcations. The use of ´will Àtµ parts may reduce implement performance void
warranties and present a safety ha]ard. Use genuine Modern Ag implement parts for economy
and safety.
Safety Signs/Decals
Modern Ag supplies safety decals on this product to promote safe operation. Damage to the
decals may occur while in shipping use or reconditioning. Always maintain the safety signs in
good readaEle condition. If the safety signs are missing damaged or unreadaEle oEtain and
install replacement safety signs immediately.
Concluding Safety Instructions and Practices
In addition to the design and conÀguration of this implement including safety signs and safety
eTuipment ha]ard control and accident prevention are dependent upon the awareness concern
prudence and proper training of personnel involved in the operation transport maintenance
and storage of the machine. Refer also to safety guidelines and operation instruction in each of
the appropriate sections of the tractor and eTuipment manuals. Pay close attention to the Safety
Signs afÀ[ed to the tractor and eTuipment.

SAFETY SECTION
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SAFETY DECAL PLACEMENT
1) DANGER:DO NOT
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3) DOUBLE DIAMOND 5YR/10YR
WARRANTY DECAL
5) CAUTION:
GALVANIZED COAT DECAL
4) CAUTION: KEEP
HANDS CLEAR DECAL 6) DANGER: REPLACE
SHIELDS DECAL
7) RE-TORQUE DECAL
8) MODERN AG PRODUCTS DECAL
9) DANGER: LOW WING/
ROT BLADES DECAL
10) WARNING: NO LUB DECAL
11) 540 RPM DECAL
12) “MADE IN USA” DECAL
13) MODERN ATTACHMENTS DECAL
14) MADE IN USA MODERN AG PRODUCTS DECAL
15) MODERN MFG DECAL
16) FEMA DECAL
18) SIZE “12” DECAL
19) VIPER DECAL
20) CAUTION: DRIVELINE
DAMAGE DECAL
21) BLADE ROTATION DECAL
22) CAUTION:
FAILURE TO PERFORM

SAFETY DECAL PARTS LIST
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OPERATION SECTION

·9,3(5
OPERATION INSTRUCTIONS
Our rotary cutters are manufactured with Tuality material Ey sNilled worNers. These cutters are
designed to cut grass weeds crop stalNs Erush and other vegetation up to 1µ diameter. The
cutter is eTuipped with protective deÁectors andor chain guards to prevent oEMects Eeing thrown
from the cutter Ey the Elades however no shielding is 100 effective. All shields guards deÁectors
and chains eTuipped on the unit must Ee maintained on the cutter in good operational condition.
It is the operators responsiEility to Ee NnowledgeaEle of all potential operating ha]ards and to
taNe every reasonaEle precaution to ensure oneself others animals and property are not inMured
or damaged Ey the cutter tractor or a thrown oEMect. Do not operate the cutter if passersEy pets
livestocN or property are within 00 feet of the unit.
This section of the Operators Manual is designed to familiari]e instruct and educate safe and
proper cutter use to the operator. Pictures contained in this section are intended to Ee used as a
visual aid to assist in e[plaining the operation of a Áe[-wing rotary cutter and are not necessarily
of all cutters. Some pictures may show shields removed for picture clarity. NEVER OPERATE this
implement without all shields in place and in good operational condition. The operator must Ee
familiar with the cutter and tractor operation and all associated safety practices Eefore operating
the cutter and tractor. Proper operation of the cutter as detailed in this manual will help ensure
years of safe and satisfactory use of the cutter.
IMPORTANT: To avoid cutter damage retorTue all Eolts after the Àrst 10 hours of operation.
Retighten Elade carrier retaining nut on gearEo[ lower shafts to 50 ft. lEs.
READ AND UNDERSTAND THE ENTIRE OPERATING INSTRUCTIONS AND SAFETY SECTION
OF THIS MANUAL AND THE TRACTOR MANUAL BEFORE ATTEMPTING TO USE THE TRACTOR
AND Cutter. If you do not understand any of the instructions contact your nearest authori]ed
dealer for a full e[planation. Pay close attention to all safety signs and safety messages contained in
this manual and those afÀ[ed to the cutter and tractor.
READ UNDERSTAND and )OLLOW the following Safety Messages. Serious inMury or
death may occur unless care is taNen to follow the warnings and instructions stated in
the Safety Messages. Always use good common sense to avoid hazards.
Si no lee ingles pida ayuda a alguien Tue si lo lea para Tue le traduzca las
medidas de seguridad.
PELIGRO

OPERATION SECTION
/