Alamo 66 User manual

Tree Cutter
Grizzly 66
ALAMOINDUSTRIAL
1502 E. Walnut
Seguin, Texas 78155
830-372-3551 ©2005AlamoGroupInc.
Published 01/05 Part No. 02975193C
OPERATOR'S MANUAL
This Operator's Manual is an integral part of the safe operation
of this machine and must be maintained with the unit at all
times. READ, UNDERSTAND, and FOLLOW the Safety and
Operation Instructions contained in this manual before
operating the equipment.
$0.00

TO THE OWNER/OPERATOR/DEALER
Allimplementswithmovingpartsarepotentiallyhazardous. Thereisnosubstituteforacautious,safe-mindedoperator
who recognizes the potential hazards and follows reasonable safety practices. The manufacturer has designed this
implement to be used with all its safety equipment properly attached to minimize the chance of accidents.
BEFORE YOU START!! Read the safety messages on the implement and shown in your manual.
Observe the rules of safety and common sense!
WARRANTY INFORMATION:
ReadandunderstandthecompleteWarrantyStatementfoundinthisManual. FillouttheWarrantyRegistrationForm
infullandreturnittowithin30Days. MakecertaintheSerialNumberoftheMachineisrecordedontheWarrantyCard
andon the WarrantyForm that youretain. Theuse of “will-fit”partswill void youwarrantyand can causecatastrophic
failure with possible injury or death

Inordertoreduceaccidentsandenhance the safe operation of mowers, Alamo Industrial, in cooperation
withotherindustrymanufacturershasdevelopedtheAEM/FEMAIndustrialandAgriculturalMowerSafety
Practicesvideoandguide book.
Thevideowillfamiliarize andinstructmower-tractor operatorsinsafepracticeswhenusing industrialand
agriculturalmowingequipment. ItisimportantthatEveryMowerOperator beeducatedintheoperationof
theirmowing equipment and beable to recognize thepotential hazards that canoccur while operating a
mower. Thisvideo,alongwiththemoweroperator’smanualandthewarningmessagesonthemower,will
significantlyassistinthisimportanteducation.
YourAuthorized Alamo Industrial Dealer may have shown this video and presented you a DVDVideo
when you purchased your mower. If you or any mower operator have not seen this video, Watch the
Video,Readthis Operator’sManual, andCompletethe VideoGuidebookbefore operating your new
mower.Ifyoudo notunderstandanyoftheinstructionsincludedin thevideooroperator’smanualorifyou
haveanyquestionsconcerningsafetyofoperation,contact your supervisor,dealerorAlamoIndustrial.
IfyouwouldlikeaVHSvideotapeofthevideo, pleaseemailAEMV[email protected]orFaxAEM
VHSVideo at [phone] or mail in a completed copy of the form on the back of thispage toAEM
VHSVideo1502 EWalnutStreet,Seguin,TX 78155. and request theVHSvideoversion. Pleaseinclude
yourname,mailingaddress,mowermodelandserialnumber.
Everyoperatorshouldbetrainedforeachpieceofequipment(TractorandMower),understandtheintended
use,and the potential hazardsbeforeoperatingtheequipment.
Safety Training
MakestheDifference


BE SAFE!


BEALERT!
 
 
 BE ALIVE!


BE TRAINED
beforeoperating
theMower!

Alamo Industrial is willing to provide
one (1) AEM Mower Safety Practices Video
Please Send Me: VHS Format – AEM/FEMA Mower Operator Safety Video
DVD Format – AEM/FEMA Mower Operator Safety Video
Mower Operator’s Manual
AEM Mower Operator’s Safety Manual
RequesterName: Phone:
RequesterAddress:
City
State
Zip Code
MowerModel: SerialNumber:
Date Purchased: DealerSalesperson:
DealershipName: Dealership Location:
Mailto: AEM Video Services
1502 E Walnut street
Seguin, TX 78155
Or Fax to: [phone]
OrEmail to: AEMV[email protected]

TABLE OF CONTENTS
SAFETY SECTION ...................................................................................................................................... 1-1
Safety Information .................................................................................................................1-2 thru 5
Work Area Preparation ...................................................................................................................1-9
Decal Location............................................................................................................................... 1-14
Safety Decals................................................................................................................................. 1-15
Federal Laws & Regulations ........................................................................................... 1-18
INTRODUCTIONSECTION ...........................................................................................................................2-1
ASSEMBLY SECTION ................................................................................................................................ 3-1
Installation ....................................................................................................................................... 3-2
Precautions .......................................................................................................................................3-2
Hydraulic Schematic.............................................................................................................. 3-3 thru 5
OPERATIONSECTION .................................................................................................................................4-1
Pre-Startup (Daily Check List)..........................................................................................................4-2
Blade & Disc Preparation .................................................................................................................4-3
Start Up .............................................................................................................................................4-3
NormalOperation ..............................................................................................................................4-4
MAINTENANCE SECTION.......................................................................................................................... 5-1
GeneralMaintenance........................................................................................................................5-2
Disassembly & Assembly ..................................................................................................... 5-2 thru 5
Bikon Hub .........................................................................................................................................5-4
Motor Mounting Plate .......................................................................................................................5-6
Bolts & Locknuts ..............................................................................................................................5-6
Blade Arm .........................................................................................................................................5-6
Blade Bolts........................................................................................................................................5-6
Installation & Removal of Locking Assembly ..................................................................................5-6
General Instructions..........................................................................................................................5-8
HubInstallation .................................................................................................................................5-9

Safety Section 1-1
SAFETY
SECTION

Safety Section 1-2
SAFETY
© 2005 Alamo Group Inc.
GRIZZLY 66 01/05
Asafeandcareful operator isthebestoperator. Safetyisofprimaryimportancetothemanufac-
turer and should be to the owner/operator. Most accidents can be avoided by being aware of
yourequipment,your surroundings,andobserving certain precautions. Thefirstsection ofthis
manual includes a list of Safety Messages that, if followed, will help protect the operator and
bystandersfrominjury ordeath. Readand understand theseSafetyMessages beforeassem-
bling,operating or servicingthis implement. Thisequipment shouldonlybe operatedby those
personswho have readthe Manual,who are responsibleand trained,and whoknowhow todo
sosafelyand responsibly.
TheSafety Alert Symbol combined witha Signal Word, as seenbelow, is used throughout this
manual and on decals which are attached to the equipment. The Safety Alert Symbol means:
“ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!” The Symbol and Signal
Wordareintendedtowarntheowner/operatorofimpendinghazardsandthedegreeofpossible
injuryfacedwhenoperatingthisequipment..
CAUTION! ThelowestlevelofSafetyMessage;warnsofpossibleinjury. Decals
located on the Equipment with this Signal Word are Black and Yellow.
WARNING! Serious injury or possible death! Decals are Black and Orange.
DANGER! Imminentdeath/criticalinjury. DecalsareRedandWhite.(SG-1)
Practice all usual and customary safe working precautions and
above all---remember safety is up to YOU. Only YOU can prevent
serious injury or death from unsafe practices.
READ, UNDERSTAND, and FOLLOW the following Safety
Messages. Serious injury or death may occur unless care is
taken to follow the warnings and instructions stated in the Safety
Messages. Always use good common sense to avoid hazards.
(SG-2)

Safety Section 1-3
SAFETY
© 2005 Alamo Group Inc.
GRIZZLY 66 01/05
Si no lee Ingles, pida ayuda a alguien que
si lo lea para que le traduzca las medidas
de seguridad. (SG-3)
PELIGRO! ¡LEAEL
INSTRUCTIVO!
DANGER! Never operate the Tractor or Implement until you have read and
completelyunderstandthisManual,theTractorOperator’s Manual,
andeachoftheSafetyMessagesfoundintheManualorontheTractor
andImplement. Learnhowtostopthe tractorengine suddenlyin an
emergency. Never allow inexperienced or untrained personnel too
operatetheTractorandImplementwithoutsupervision. Makesure
the operator has fully read and understood the manuals prior to
operation. (SG-4)
WARNING! Make certain that the “Slow Moving Vehicle” (SMV) sign is installed in
such a way as to be clearly visible and legible. When transporting the
EquipmentusetheTractorflashingwarninglightsandfollowalllocaltraffic
regulations.(SG-6)
WARNING! Operate this Equipment only with a Tractor equipped with an
approved roll-over-protective system (ROPS). Always wear seat
belts. Serious injury or even death could result from falling off the
tractor--particularly during a turnover when the operator could be
pinned under the ROPS. (SG-7)
WARNING! DonotmodifyoralterthisImplement. DonotpermitanyonetomodifyoralterthisImplement,
any of its components or any Implement function. (SG-8)
DANGER! BEFOREleavingthetractorseat,alwaysengagethebrakeand/orset
thetractortransmissionin parkinggear, disengagethe PTO,stopthe
engine,removethekey,andwaitforallmovingpartstostop. Placethe
tractorshiftleverintoalowrangeorparkinggeartopreventthetractor
fromrolling. NeverdismountaTractorthatismovingorwhiletheengine
is running. Operate the Tractor controls from the tractor seat only.
(SG-9)
WARNING! Alwaysmaintainthesafetydecalsingoodreadablecondition. If the decals are missing, damaged,
or unreadable,obtain and installreplacement decals immediately. (SG-5)

Safety Section 1-4
SAFETY
© 2005 Alamo Group Inc.
GRIZZLY 66 01/05
DANGER! NeverallowchildrenorotherpersonstorideontheTractororImplement.
Falling off can result in serious injury or death. (SG-10)
DANGER! Neverallow children to operate orrideon the Tractor or Implement.
(SGM-11)
WARNING! Do not mount the Tractor while the tractor is
moving. Mount the Tractor only when the
Tractor and all moving parts are completely
stopped.
(SG-12)
DANGER! Start tractor only when properly seated in the Tractor seat. Starting a
tractorin gear can result in injury or death. Read the Tractoroperators
manual for proper starting instructions. (SG-13)
DANGER! NeverworkundertheImplement,theframework,or
any lifted component unless the Implement is
securelysupportedorblockeduptopreventsudden
or inadvertent falling which could cause serious
injury or even death. (SG-14)
WARNING! The operator and all support personnel should wear hard hats,
safety shoes, safety glasses, and proper hearing protection at all
timesforprotectionfrominjuryincludinginjuryfromitemsthrownby
the equipment. (SG-16)
DANGER! Do not operate this Equipment with hydraulic oil
leaking. Oilisexpensiveanditspresencecouldpresentahazard. Do
not check for leaks with your hand! Use a piece of heavy paper or
cardboard. High-pressure oil streams from breaks in the line could
penetratetheskinandcausetissuedamageincludinggangrene. Ifoil
does penetrate the skin, have the injury treated immediately by a
physician knowledgeable and skilled in this procedure. (SG-15)
CAUTION! PROLONGED EXPOSURE TO LOUD NOISE MAY CAUSE PER-
MANENT HEARING LOSS! Tractors with or without an Implement
attached can often be noisy enough to cause permanent hearing
loss. We recommend that you always wear hearing protection if the
noise in the Operator’s position exceeds 80db. Noise over 85db
over an extended period of time will cause severe hearing loss.
Noiseover 90db adjacent to the Operator over anextendedperiodof
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. (SG-I7)

Safety Section 1-5
SAFETY
© 2005 Alamo Group Inc.
GRIZZLY 66 01/05
WARNING! Transportonly at safe speeds. Serious accidents andinjuriescan result
fromoperating this equipmentatunsafe speeds. Understand theTractor
and Implement and how it handles before transporting on streets and
highways. Makesure the Tractorsteeringand brakes are ingoodcondi-
tionand operate properly.
Beforetransporting the Tractor and Implement, determine thesafe
transportspeedsforyou and the equipment. Make sure you abide by
thefollowingrules:
Beawareofthe operatingconditions. Do notoperatethe Tractorwith weakorfaultybrakes. Whenoperating down
a hill or on wet or rain slick roads, the braking distance increases: use extreme care and reduce your speed.
When operating in traffic always use the Tractor’s flashing warning lights and reduce your speed. Be aware of
traffic around you andwatch out for the other guy. (SG-19)
Test the equipment 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 extreme care and reduce your speed when
turning sharply to prevent the tractor and implement from turning
over. Determine the maximum safe turning speed for you and this
equipmentbeforeoperatingon roadsorunevenground.
Only transport the Tractor and Implement at the speeds that you
have determined are safe and which allow you to properly control the
equipment.
Test the tractor at a slow speed and increase the speed slowly.
Apply the Brakes smoothly to determine the stopping
characteristicsof the Tractor and Implement.
As you increase the speed of the Tractor the stopping distance
increases. Determine the maximum safe transport speed for
you and this Equipment.
2.
1.
3.
WARNING! Never attempt to lubricate, adjust, or remove material from the
Implementwhileitisinmotionorwhiletractorengineisrunning. Make
sure the tractor engine is off before working on the Implement.
(SG-20)
WARNING! Periodically inspect all moving parts for wear and replace when
necessary with authorized service parts. Look for loose fasteners,
worn or broken parts, and leaky or loose fittings. Make sure all pins
have cotter pins and washers. Serious injury may occur from not
maintaining this machine in good working order. (SG-21)
WARNING! Always read carefully and comply fully with the manufacturers instruc-
tions when handling oil, solvents, cleansers, and any other chemical
agent. (SG-22)
DANGER! Never run the tractor engine in a closed building or without adequate
ventilation. The exhaust fumes can be hazardous to your health.
(SG-23)

Safety Section 1-6
SAFETY
© 2005 Alamo Group Inc.
GRIZZLY 66 01/05
DANGER! KEEPAWAYFROM ROTATINGELEMENTStoprevententanglement
and possible serious injury or death. (SG-24)
DANGER! Never allow children to play on or around Tractor or Implement. Children can slip or fall off the
Equipment and be injured or killed. Children can cause the Implement to shift or fall crushing
themselves or others. (SG-25)
DANGER! NEVER use drugs or alcohol immediately before or while operating the
Tractor and Implement. Drugs and alcohol will affect an operator’s
alertness and coordination and therefore affect the operator’s ability to
operate the equipment safely. Before operating the Tractor or Imple-
ment,an operator on prescription or over-the-countermedication must
consult a medical professional regarding any side effects of the medi-
cation that would hinder their ability to operate the Equipment safely.
NEVER knowingly allow anyone to operate this equipment when their
alertness or coordination is impaired. Serious injury or death to the
operator or others could result if the operator is under the influence of
drugs or alcohol. (SG-27)
DANGER! OperatetheTractorand/orImplementcontrolsonlywhileproperlyseatedintheTractorseatwith
theseatbeltsecurelyfastenedaroundyou. InadvertentmovementoftheTractororImplementmay
cause serious injury or death. (SG-29)
WARNING! Mowonlyinconditionswhereyouhaveclearvisibilityindaylightorwithadequateartificiallighting.
Nevermowindarknessorfoggyconditionswhereyoucannotclearlyseeatleast100yardsinfront
and to the sides of the tractor and mower. Make sure that you can clearly see and identify
passersby,steepslopes,ditches,drop-offs,overheadobstructions,powerlines,debrisandforeign
objects. If you are unable to clearly see this type of items discontinue mowing. (SGM-1)
DANGER! Thereareobviousandhiddenpotentialhazardsintheoperationofthis
Mower. REMEMBER! Thismachineisoftenoperatedinheavybrush
and in heavy weeds. The Blades of this Mower can throw objects if
shields are not properly installed and maintained. Serious injury or
evendeathmayoccurunlesscare istakento insurethesafetyofthe
operator, bystanders, or passersby in the area. Do not operate this
machinewith anyone intheimmediate area. Stop mowingifanyone
is within 100 yards of mower. (SGM-2)
DANGER! Therotatingpartsofthismachinehavebeendesignedandtestedforruggeduse. However,
they could fail upon impact with heavy, solid objects such as steel guard rails and concrete
abutments. Such impact could cause the broken objects to be thrown outward at very high
velocities. Toreducethepossibilityofpropertydamage,seriousinjury,orevendeath,never
allow the cutting blades to contact such obstacles. (SGM-4)
WARNING! DonotmowwithtwomachinesinthesameareaexceptwithCabtractorswiththewindowsclosed.
(SGM-11)

Safety Section 1-7
SAFETY
© 2005 Alamo Group Inc.
GRIZZLY 66 01/05
WARNING! Manyvariedobjects,suchaswire,cable,rope,orchains,canbecomeentangledintheoperating
partsof themower head. Theseitemscould thenswingoutside thehousing at greatervelocities
thantheblades. Suchasituationisextremelyhazardousandcouldresultinseriousinjuryoreven
death. Inspectthecuttingareaforsuchobjectsbeforemowing. Removeanylikeobjectfromthe
site. Never allow the cutting blades to contact such items. (SGM-6)
WARNING! Avoidmowinginreversedirectionwhenpossible. Checktomakesuretherearenopersonsare
behindthemoweranduseextremecarewhenmowinginreverse. Mowonlyataslowgroundspeed
whereyoucansafelyoperateandcontrolthetractorandmower. Nevermowanareainthereverse
directionthatyou have not inspected and removed debris or foreign material. (SGM-8)
WARNING! Donotputhandsor feet under mower decks. Blade Contact can result
serious injury or even death. (SGM-9)
WARNING! Extremecareshouldbetakenwhenoperatingnearlooseobjectssuch
as gravel, rocks, wire, and other debris. Inspect the area before
mowing. Foreignobjectsshouldberemovedfromthesitetoprevent
machinedamageand/orbodilyinjuryorevendeath. Anyobjectsthat
cannotberemovedmustbeclearlymarkedandcarefullyavoidedby
the operator. Stop mowing immediately if blades strike a foreign
object. Repair all damage and make certain rotor or blade carrier is
balancedbeforeresumingmowing.(SGM-5)
DANGER! Replacebentorbrokenbladewithnewblades. NEVERATTEMPTTOSTRAIGHTENBLADES
SINCE THIS WILL LIKELY CRACK OR OTHERWISE DAMAGE THE BLADE WITH
SUBSEQUENT FAILURE AND POSSIBLE SERIOUS INJURY FROM THROWN BLADES.
(SGM-10)
DANGER! RotaryMowersare capableunderadverseconditionsof throwingobjectsforgreatdistances
(100 yards or more) and causing serious injury or death. Follow safety messages carefully.
STOPMOWING IF PASSERSBYARE WITHIN100 YARDS UNLESS:
-FrontandRear Deflectorsare installedand ingood, workingcondition;
-MowerHeadisrunningclose to and parallel to the ground without exposed Blades;
-Passersbyareoutside the existing thrown-object zone;
-All areas have been thoroughly inspected and all foreign material such as rocks, cans, glass,
andgeneraldebrishasbeenremoved.
NOTE:
Where there are grass and weeds high enough to hide debris that could be struck by the
blades,thearea shouldbe: inspectedand largedebris removed,mowed atanintermedi-
ate height, inspected closely with any remaining dsebris being removed, and mowed
again at desired final height. (SBM-1)
DANGER! Use extreme caution when raising the Mower head. Stop the Blades from turning when the
MowerHeadisraisedandpassersbyarewithin100yards. Raising theMowerheadexposes
the Cutting Blades which creates a potentially serious hazard and can cause serious injury
by objects thrown from the Blades or by contact with the Blades. (SBM-2)

Safety Section 1-8
SAFETY
© 2005 Alamo Group Inc.
GRIZZLY 66 01/05
WARNING! Relievehydraulic pressure prior to doing any maintenanceorrepairwork on the Implement.
Place the Mower Head on the ground or securely supported on blocks or stands, disengage
the PTO, and turn off the engine. Push and pull the control Levers or Joystick several times
to relieve pressure prior to starting any maintenance or repair work. (SBM-6)
DANGER! Always keep a careful lookout and use extreme care when working
around overhead obstructions. Never allow the Mower head or boom
within10feetofanypowerline. Whenworkingclosetooverheadpower
lines consult your electric company for a safe code of operation.
(SBM-7)
DANGER! Neveroperate the Tractor andMowerUnit without an OPS(Operators
ProtectiveStructure)or Cabto preventinjuryfromobjectsthrownfrom
groundorfromoverheadtrimming. Stopmowingifworkersorpassersby
are with in 100 yards. (SBM-9)
WARNING! NeverLeavethemowerunattendedwhiletheheadisinthe
raised position. Themowercouldfallcausingseriousinjury
toanyone who mightinadvertentlybe under themower.
(SBM-4)
WARNING! The rotating parts of this machine continue to rotate even after the Tractor has been turned off. The
operator should remain in his seat for 60 seconds after the brake has been set, the PTO
disengaged, the tractor turned off, and all evidence of rotation has ceased. (SBM-5)
“Wait a minute...Save a life!”
DANGER! TheMowershaftspeedmustnot-UNDERANYCIRCUMSTANCES-exceed1800RPM. (SBM-15)
PARTSINFORMATION
Alamo Industrial mowers use balanced and matched system components for blade carriers, blades,
cuttershafts,knives,knifehangers,rollers,drivetraincomponents,andbearings. Thesepartsaremadeand
tested to Alamo Industrial specifications. Non-genuine "will fit" parts do not consistently meet these
specifications. Theuseof“willfit”partsmayreducemowerperformance,voidmowerwarranties,andpresent
a safety hazard. Use genuine Alamo Industrial mower parts for economy and safety. (SPAM-1)
SEEYOURALAMODEALER
Inaddition tothedesign andconfigurationof thisImplement,including Safety Signsand Safety Equipment,hazard
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
Messages and operation instruction in each of the appropriate sections of the Tractor and Equipment Manuals.
Pay close attention to the Safety Signs affixed to the Tractor and Equipment. (SG-18)

Safety Section 1-9
SAFETY
© 2005 Alamo Group Inc.
GRIZZLY 66 01/05
It is the intention of this manual to inform owners and their operators of some of the dangers inherent in the
use of this epuipment. The machine is an effective, durable and simple tool and when used correctly will
provide satisfactory results with minimal danger. These warnings are intended to help ensure that
operators and maintenance personnel treat the machine with the respect and care that a powered, edged
tool demands and enjoy trouble-free and safe usage. Do not let accidents happen through ignorance,
carelessness or improper use.
1. Keep children, bystanders and animals a minimum of 300 feet, (100 meters) away from the work area.
2. Post "DANGER" signs as in Figure 1.2 to warn pedistrians and vehicles of the danger and to prevent
them from inadvertently wandering into the area. Obey local regulations and by-laws wherever applicable.
WORK AREA PREPARATION

Safety Section 1-10
SAFETY
© 2005 Alamo Group Inc.
GRIZZLY 66 01/05
3. An area to be cut must first be inspected for objects that could be thrown or that could damage the
machine. Walk through the area looking for overgrown fences, boulders and rocks, culverts, stumps or
metal objects. Mark the inspected area with flags. If the area is dense and cannot be walked thoroughly it
may be necessary to inspect a smaller area as well as possible, then trim away the part that has been
inspected and can safely be removed. Walk each new area again and repeat the inspection before cutting
more away. Repeat as often as necessary until the area is cleared. It can be damaging and/or dangerous
to work the brushcutter in an area that has not been visually inspected. Note that the DANGER signs should
be placed at least 300 feet beyond the perimeter of the area to be worked, not just 300 feet from where the
machine started operating!
4. Once an area has been cleared, move the DANGER signs and cutting area flags and repeat step 3
above.
It is convenient in many cases to work in 300 foot sections. Move the first Danger sign to the beginning of
the freshly cleared area, place it, then take the first cutting area flag up to the end of the freshly cleared area
300 feet away. Walk and inspect the next 300 feet and place the second cutting area flag. Pick up the
second DANGER sign, and take it a further 300 feet along the road or trail. Note that in many cases the
DANGER area will extend in front of and behind the machine as well as along each side. Post signs
accordingly.
5. The operator's cab must be protected by a strong wire screen or materials capable of withstanding an
objectthrown by the Grizzly.
6. Should a vehicle or pedestrian enter the defined DANGER area, immediately stop cutting until the area
is clear again.
7. Objects tend to be thrown out from under the shroud in the direction of rotation and towards the raised
edge of the shroud. Avoid cutting with the head titled at such an angle that objects would be thrown towards
the operator's cab. See figure 1.5 Titling The Cutter Head.

Safety Section 1-11
SAFETY
© 2005 Alamo Group Inc.
GRIZZLY 66 01/05
Reversing the direction of rotation of the cutting head on side opening machines increases the chances of
objects being thrown out because of the position of the "gate" in relation to the boom arm.
When clearing brush and small trees, start at the top and then lower the head down through the brush while
sweeping from right to left. This avoids clogging the head with mulched material.
NOTE: Keep the cutting head titled away from the operator when it is raised to avoid throwing splinters
towards the cab.
WARNING! Engage the cutting head with the tractor engine at idle. If the cutter is engaged at high rpm,
severe damage to the coupling could occur.
Always disengage the Grizzly before leaving the machine. Place the Control Valve in the OFF position and
disengage the power take-off. Shut off the engine. A preventor or locking device must be installed on the
control valve handle to prevent inadvertent or accidental engagement when the operator is out of the cab.

Safety Section 1-12
SAFETY
© 2005 Alamo Group Inc.
GRIZZLY 66 01/05
ATTENTION!
This unit was shipped with an Operator’s Manual Specifically designed to remain with the unit at all times. This
manual is to be stored in the protective canister shipped with this unit. Because it is not feasible to attach the
protective canister to the unit directly due to severe conditions in which it operates, the canister must be
installed in a secure area such as the operator’s station. Choose a location that allows convenient access by
theoperator and easily allows removal of the Operators Manual. Use the adhesive and/ortheincludedfasteners
to securely attach the canister. Operator must read the Operator’s Manual prior to using the unit.

Safety Section 1-13
SAFETY
© 2005 Alamo Group Inc.
GRIZZLY 66 01/05
CleanSurface
With Alcohol
BeforeApplying
Tape. CoverHoles
With Tape to
Prevent
MoistureFrom
Entering
Canister.
ITEM PART NO. QTY DESCRIPTION
1 02977385 1 Sq.Canister
2 02968143 2 1/2' Tape 3M Back to Back
3 02977417 1 Decal,Op. Man. Inside
4 10058000 4 Bolt
5 00024100 4 Flatwasher
6 02967444C 4 Oper.Man.(Inside)
7 00017000 4 Lockwasher
8 02959924 4 NutToplock
1
2
3
8
4
5
6
7

Safety Section 1-14
SAFETY
© 2005 Alamo Group Inc.
GRIZZLY 66 01/05
ITEM PART NO. QTY LEVEL DESCRIPTION
1 00769736 1 WARNING Use/Repair Shield & Guards
2 00769737 2 DANGER Cutting Blades/Thrown Objects
3 02925100 1 IMPORTANT Genuine Parts
4 02967827 1 DANGER Multi-Hazard
5 02967867 2 DANGER Safety Gate Operation
6 02972284 2 LOGO Grizzly
7 02965262 1 WARNING Hose Burst
8 02973050 3 DANGER Danger Stand Clear
9 02973051 1 INSTRUCT Read Operators Instructions
10 02973052 1 DANGER Keep Clear Over Head Wires
11 00725746 1 PELIGRO Peligro Spanish Translation
DECAL LOCATION