MODERN AG 12' Viper Cutter Owner's manual

Brand: MODERN AG

Model: 12' Viper Cutter

Category: Lawnmowers

Type: Owner's manual

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Operator’s 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

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· 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

owneroperator in the correct assemEOy of the Cutter using standard and optionaO eTuipment. The

Parts Listing section is designed to famiOiari]e the owneroperator 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 owneroperator 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 owneroperator 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 owneroperatordeaOer 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 owneroperator. 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 operator’s 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 operator’s 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 operator’s alertness and coordination and therefore affect the

operator’s 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.

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SAFETY SECTION

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·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

operator’s 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 andor implement

Ã ETuip the tractor with a Àre e[tinguisher in an accessiEle location.

Ã Do Not operate the implement on a tractor with an underframe e[haust.

Ã Do Not smoNe or have an open Áame near the tractor andor implement.

Ã Do Not drive into Eurning deEris or freshly Eurnt areas.

Ã Ensure slip clutches are properly adMusted to prevent e[cessive slippage and plate heating.

Ã 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 andor 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 mountdismount 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 andor 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

amage

rep

ace t

mme

ate

o not operate t

ement unt

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 manufacturer’s 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 andor 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 operator’s 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



se e[treme care w

ower

ng or un

ldi

ng t

ement

’

s w

ngs.

e sure no

ystan

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 andor 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 andor

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

tractor’s 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 tractor’s 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 andor 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 andor 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



·9,3(5

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SAFETY DECAL PLACEMENT

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GEARBOX DECAL

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 andor 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 operator’s 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 Operator’s 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

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MODERN AG 12' Viper Cutter Owner's manual

Brand: MODERN AG

Model: 12' Viper Cutter

Category: Lawnmowers

Type: Owner's manual

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MODERN AG 12' Viper Cutter Owner's manual

MODERN AG 12' Viper Cutter Owner's manual

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