Matco Tools MT2858A Product manual

Some dust created by power sanding, sawing, grinding, drilling, and other
construction activities contains chemicals known to cause cancer, birth defects or
other reproductive harm. Some examples of these chemicals are:
 • leadfromlead-basedpaints,
 • crystallinesilicafrombricksandcementandothermasonryproducts,and
 • arsenicandchromiumfromchemically-treatedlumber.
Your risk from these exposures varies, depending on how often you do this type
of work. To reduce your exposure to these chemicals: work in a well ventilated
area, and work with approved safety equipment, such as those dust masks that are
specially designed to filter out microscopic particles.
MT2858A
Max. Torque .............................................................................130 ft. lbs.
Working Torque .................................................................. 30-110 ft. lbs.
Max. Free Speed....................................................................... 180 RPM
Air Inlet .......................................................................................1/4" NPT
Avg. Air Consumption.................................................................. 4 CFM
Sound Pressure Level.................................................................. 84 dBA
Vibration Level...................................................................... 2.54 m/sec²
Recommended Air Pressure ....................................................... 90 psig
Air Hose Size................................................................................. 3/8" ID
Length............................................................................................. 12.45"
Weight......................................................................................... 3.3 LBS.
SPECIFICATIONS



ALWAYS READ
INSTRUCTIONS
BEFORE USING
POWER TOOLS
ALWAYS WEAR
SAFETY
GOGGLES
ALWAYS WEAR
HEARING
PROTECTION
AVOID
PROLONGED
EXPOSURE TO
VIBRATION Copyright © Professional Tool Products, 2015
All rights reserved
MT2858A
WARNING
WARNING
HEAVY DUTY
AIR RATCHET
3
"
8
CLIQUET PNEUMATIQUE 3/8 PO TRÈS RÉSISTANT
TRINQUETE NEUMÁTICO PARA SERVICIO PESADO 3/8"

MT2858A 2 rev. 3/30/15
MT2858A 3/8"HEAVY DUTY AIRY RATCHET
   




• It is the responsibility of the owner to make sure all
 personnelreadthismanualpriortousingthedevice.It
 is also the responsibility of the device owner to keep
 thismanualintactandinaconvenientlocationforallto
 seeandread.Ifthemanualorproductlabelsarelostor
 not legible, contact Matco for replacements. If the
 operatorisnotfluentinEnglish,theproductandsafety
 instructions shall be read and discussed with the
 operator in the operator's native language by the
 purchaser/ownerorhisdesignee,makingsurethatthe
 operatorcomprehendsitscontents.
• Always operate, inspect and maintain this tool in
 accordancewithAmericanNationalStandardsInstitute
 SafetyCodeofPortableAirTools(ANSIB186.1)andany
 otherapplicablesafetycodesandregulations.
• Forsafety,topperformanceandmaximumdurabilityof
 parts, operate this tool at 90 psig; 6.2 bar max air
 pressurewith3/8"diameterairsupplyhose.
• Alwayswearimpact-resistanteyeandfaceprotection
 whenoperatingorperformingmaintenanceonthistool
 (usersandbystanders).
• Highsound levelscan causepermanenthearing loss.
 Alwaysusehearingprotectionasrecommendedbyyour
 employer an OSHA regulations while using this tool
 (usersandbystanders).
• Operators and maintenance personnel must be
 physicallyabletohandlethebulk,weightandpowerof
 thistool.
• Keeptooloutofreachofchildren.
• Airpoweredtoolscanvibrateinuse.Vibration,repetitive
 motions or uncomfortable positions over extended
 periodsoftimemaybeharmfultoyourhandsandarms.
 Discontinueuseoftoolifdiscomfort,tinglingfeelingor
 painoccurs.Seekmedicaladvicebeforeresuminguse.
• Airunderpressurecancausesevereinjury.Neverdirect
 airatyourselforothers.Alwaysturnofftheairsupply,
 drainhoseofairpressureanddetachtoolfromairsupply
 beforeinstalling,removing or adjusting anyaccessory
 onthistool,orbeforeperforminganymaintenanceon
 this tool. Failure to do so could result in injury. Whip
 hoses can cause serious injury. Always check for
 damaged,frayedorloosehosesandfittings,andreplace
 immediately.Donotusequickdetachcouplingsattool.
 Seeinstructionsforcorrectset-up.
• Do not operate a damaged or worn tool. Do not use
 quick-detach couplings at tool. See instructions for
 correctset-up.
• Placetoolontheworkbeforestartingthetool.Donot
 pointorindulgeinanyhorseplaywiththistool.
• Slipping, tripping and/or falling while operating air
 tools can be a major cause of serious injury or
 death. Be aware of excess hose left on the walking
 orworksurface.
• Keep body working stance balanced and firm. Do
 notoverreachwhenoperatingthetool.
• Anticipate and be alert for sudden changes in motion
 duringstartupandoperationofanypowertool.
• NotedirectionofrotationBEFOREoperatingthistool
• Do not carry tool by the hose. Protect the hose from
 sharpobjectsandheat.
• Tool shaft may continue to rotate briefly after throttle
 is released. Avoid direct contact with accessories
 duringandafteruse.Gloveswillreducetheriskofcuts
 orburns
• Keep away from rotating end of tool. Do not wear
 jewelry or loose clothing. Secure long hair. Scalping
 can occur if hair is not kept away from tool and
 accessories. Choking can occur if neckwear is not
 keptawayfromtoolandaccessories.
• Useonlyimpactsocketsandaccessoriesonthistool.
Do not use hand sockets and accessories.
• Thistoolisnotinsulatedagainstelectricshock.
• Thistoolmustnotbeusedinexplosiveatmospheres.
• Donotlubricatetoolswithflammableorvolatileliquids
 suchaskerosene,dieselorjetfuel.
• Donotforcetoolbeyonditsratedcapacity.
• Usereplacementpartsandaccessoriesrecommended
 byMatco.
• Servicing and repairs should only be made by an
 authorizedservicecenter.
• Do not use (or modify) the tool for any other purpose
 thanthatforwhichitwasdesignedwithoutconsulting
 themanufacturer'sauthorizedrepresentative.
• Donotremoveanylabels.Replacedamagedlabels.
• Thisproductmaycontainoneormorechemicalsknown
 to the State of California to cause cancer and birth
 defects or other reproductive harm. Wash hands
thoroughly after handling.
• Failuretoheedthesewarningsmayresultinpersonal
 injuryand/orpropertydamage.

WARNING

MT2858A 3 rev. 3/30/15

Toolsoperateonawiderangeofairpressures.Itisrecommended
thatairpressuremeasures90psigatthetoolwiththetriggerfully
depressedandnoloadappliedtothetool.Higherpressure(over
90psig;6.2bar)raisesperformancebeyondtheratedcapacityof
thetool,whichwillshortentoollifeandcouldcauseinjury.
Alwaysuseclean,dryair.Dust,corrosivefumesand/orwaterin
theairlinewillcausedamagetothetool.Drainthewaterfrom
airlinesandcompressorpriortorunningtool.Cleantheairinlet
filterscreenweekly.Therecommendedhookupprocedurecan
beviewedintheFigure1.
Theairinletusedforconnectingairsupplyhasstandard1/4"NPT.
Linepressureshouldbeincreasedtocompensateforunusually
longairhoses(over25feet).Minimumhosediametershouldbe
3/8"I.D.andfittingsshouldhavethesameinsidedimensionsand
betightlysecured.
Always turn off the air supply, drain hose of air pressure
and detach tool from air supply before installing, removing or
adjustinganypartoraccessoryonthistool,orbeforeperforming
anymaintenanceonthistool.
Ensureanaccessibleemergencyshutoffvalvehasbeeninstalled
intheairsupplylineandmakeothersawareofitslocation.

Other factors outside the tool may cause loss of power or erratic
action. Reduced compressor output, excessive drain on the air line,
moisture or restrictions in air pipes or the use of hose connections
of improper size or poor conditions may reduce air supply. Grit or
gum deposits in the tool may cut power and may be corrected
by cleaning the air strainer and flushing out the tool with gum
solvent oil or an equal mixture of SAE #10 and kerosene. If outside
conditions are in order, disconnect tool from hose and take tool to your
nearest authorized service center.

Lubricatetheairmotordailywithhighqualityairtooloil.Ifnoair
lineoilerisused,run1/2oz.ofoilthroughthetool.Theoilcan
besquirtedintothetoolairinletorintothehoseatthenearest
connectiontotheairsupply,thenrunthetool.Arustinhibitiveoil
isacceptableforairtools.
WARNING:Afteranairtoolhasbeenlubricated,oilwilldischarge
throughtheexhaustportduringthefirstfewsecondsofoperation.
Theexhaustportmustbecoveredwithatowelbeforeapplying
airpressuretopreventseriousinjury.
 


• Newreinforcedergonomicshiftknobdesignmakeschangingfromforwardtoreverseeasy.
• Newaddedbearingsonbothsidesofthegearingincreasesdurability,toollife,aswellascuts
downoninternalfrictionallowingthetooltorunsmoother.
• Rapidresponsevariablespeedtriggerallowsforonefingeroperationandunmatchedcontrol.
• Rotatingsideexhaustallowsusertodirectairawayfromwork.
• Oneofthemostpowerful3/8"ratchetsonthemarketwith130ft.lbs.oftorque.
• Matcopatentedcapturedheadandgreasefitting.
MT2858A 3/8"HEAVY DUTY AIRY RATCHET
Drain Daily
RegulatorOilerQuick CouplerLeader
Hose
Nipple
Do Not Install
Quick Coupling
Here
Nipple
Filter
Air Supply
Whip Hose 

The MT2858A 3/8" ratchet is designed to fasten and unfasten
threaded fasteners while operating under recommended
conditions. Note the directional setting of the reversing button
before depressing the throttle. Ensure body stance to be in
excellentbalanceandhavefullcontrolofthetoolbeforeuse.Be
fully alert as sudden reaction torques and directional changes
may unexpectedly occur. Be aware that air ratchets are not
torque wrenches or pry bars. Joints and fasteners requiring a
specifictorquemustbecheckedwithatorquewrenchasthefinal
step.Usingtheairratchetwhilethepowerisinthe"off"position,
to tighten or break-free fasteners, can irreversibly damage its
internalmechanismandwillvoidanyremainingwarranty.
Always turn off the air supply, drain hose of air pressure
and detach tool from air supply before installing, removing or
adjustinganypartoraccessoryonthistool,orbeforeperforming
anymaintenanceonthistool.
WARNING: Use only impact sockets and accessories on this
tool. Do not use hand sockets and accessories.

MT2858A 4 rev. 3/30/15

Matcowarrantsthisairtoolforaperiodof1yeartotheconsumer.
WewillrepairanyMTSeriesairtoolcoveredunderthiswarranty
whichprovestobedefectiveinmaterialorworkmanshipduring
thewarrantyperiod.Inordertohaveyourtoolrepaired,return
thetooltoanyoftheMatcoAuthorizedWarrantyCenterslisted,
freightprepaid.Pleaseincludeacopyofyourproofofpurchase
andabriefdescriptionoftheproblem.Thetoolwillbeinspected
and if any part or parts are found to be defective in material
or workmanship, the tool will be repaired free of charge and
returnedtoyoufreightprepaid.
Thiswarrantygivesyouspecificrights.Youmayalsohaveother
rightswhichvaryfromstatetostate.
TheforegoingobligationisMatco’ssoleliabilityunderthisorany
implied warranty and under no circumstances shall Matco be
liableforanyincidentalorconsequentialdamages.
Note: Some states do not allow the exclusion or limitation of
incidentalorconsequentialdamagessotheabovelimitationor
exclusionmaynotapplytoyou.


1330 COMMERCE DR.
STOW, OH 44224
[phone]


2223 S. WILSON STREET
TEMPE, AZ 85282
[phone]

22 GOODMARK PLACE UNIT #8
TORONTO, ON M9W 6R2
[phone]
MT2858A 3/8"HEAVY DUTY AIRY RATCHET

MT2858A 5 rev. 3/30/15
ITEM PART NO. DESCRIPTION QTY.
 1 RS281401 AirInlet 1
 2 RS281402 O-Ring 1
 3 RS501803 Spring 1
 4 RS501804 ThrottleValve 1
 5 RS501805 ThrottleSeat 1
 6 RS2858A06 Housing 1
 7 RS2858A07 ThrottlePin 1
 8 RS281407 O-Ring 1
 9 RS281408 TriggerButton 1
 10 RS2858A10 RollPin 1
 11 RS2858A11 O-Ring 2
 12 RS2858A12 Plug 1
 13 RS108A12 BallBearing(607ZZ) 1
 14 RS2858A14 RearEndPlate 1
 15 RS2858A15 RollPin 1
 16 RS2858A16 Cylinder 1
 17 RS2858A17 RotorBlade 4
 18 RS2858A18 Rotor 1
 19 RS2858A19 FrontEndPlate 1
 20 RS10920 BallBearing(6000ZZ) 1
 21 RS2858A21 InternalGear 1
 22 RS2858A22 BallBearing 2
 23 RS2858A23 BevelGear 3
 24 RS2858A24 Pin 3
 25 RS2858A25 PlanetCarrier 1
 26 RS281428 NeedleBearing 2
ITEM PART NO. DESCRIPTION QTY.
 27 RS2858A27 RatchetHousing 1
 28 RS2858A28 CrankShaft 1
 29 RS2858A29 DriveBushing 1
 30 RS2858A30 RatchetYokew/greasefitting 1
 31 RS112731 ClampNut 1
 32 * RetainerRing 1
 33 * Washer 1
 34 * ThrustWasher 1
 35 * BellevilleWasher 2
 36 * Washer 1
 37 * ThrustWasher 1
 38 * ReverseButton 1
 39 * Pin 1
 40 * Pin 2
 41 * Spring 2
 42 * Post 2
 43 * 3/8"Anvil 1
 44 * Pin 1
 45 * Spring 1
 46 * Pin 1
 47 * RatchetPawl 1
 48 RS2858A48 CompositeHousing 1
 49 RS2858A46 RollPin 1
 50 RS2858A50 ExhaustDeflector 1
  RSMT2858A ProductLabelWarning(notshown) 1
*AvailableonlyasaHeadKit:RSRHKMT2858A
MT2858A 3/8"HEAVY DUTY AIRY RATCHET
USpatent#6,490,953
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