ATD AIR ATD-2131 User manual

ATD-2131 - 1 - Rev. 3/19/09
1/4" MINI AIR DIE GRINDER
ATD-2131
FreeSpeed............................... 25,000RPM
ColletSize .................................... 1/4"
Air Inlet.................................1/4"-18 NPT
Hose Size ..................................3/8" I.D.
Rec. Air Pressure . . . . . . . . . . . . . . . . . . . . . . . .90 psig (6.2 bar)
Avg. Air Consumption.......................... 2.81 cfm
SoundLevel ................................. 97dBA
Length ........................................4.7"
ShippingWeight ..............................1.5Lbs.
SPECIFICATIONS
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.
ALWAYS READ
INSTRUCTIONS
BEFORE USING
POWER TOOLS
• MAXIMUMRPMOF25,000
• ALWAYSWEARAPPROVEDEAR
AND EYE PROTECTION.
• ALWAYSOPERATEATMAX.AIR
 PRESSUREOF90PSIG,6.2BAR.
• REPETITIVEMOTION/EXTENDED
 EXPOSURETOVIBRATIONMAY
 HARMHANDS/ARMS.
• ACCESSORYUSEDMUSTBERATED
 HIGHERTHAN25,000RPM
This insTrucTion Manual
conTains iMporTanT
safeTy inforMaTion
read carefully and
undersTand all
inforMaTion BEFORE
operaTing This Tool!
save This Manual
for fuTure reference.
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING

ATD-2131 - 2 - Rev. 3/19/09
• 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.
• 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.
• Wearglovesandprotectiveclothingtoavoidinjuries
caused by chips or pieces, malfunctioning
accessories,orimproperlyclampedwork.
• Whenpossible,secureworkwithclampsorviseso
both hands are free to operate tool.
• Correctgrindingwheelmountingisnecessaryto
preventinjuryfrombrokenwheels.Donotuse
chippedorcrackedgrindingwheels.Grindingwheels
should be a free fit on the spindle to prevent stress
atthehole.Useonlywheelcollarswhatcomewith
thegrinderformountingthegrindingwheel.Flat
washersorotheradaptersmayoverstressthewheel.
Alwaysuseheavypaperblotterdiscsbetweenthe
wheelcollarsandthegrindingwheel.Tightenthe
wheelonthespindletopreventspinoffwhenthe
air grinder is turned off.
• Donotlubricatetoolswithflammableorvolatile
liquidssuchaskerosene,dieselorjetfuel.
• Don’tforcetoolbeyonditsratedcapacity.
• Donotremoveanylabels.Replaceanydamaged
labels.
• UseaccessoriesrecommendedbyATDTools.
THIS INSTRUCTION MANUAL CONTAINS IMPORTANT
SAFETY INFORMATION.
READ THIS INSTRUCTION MANUAL CAREFULLY AND
UNDERSTAND ALL INFORMATION BEFORE OPERATING
THIS TOOL.
• 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.
Alwayswearhearingprotectionwhen
using this tool.
• Highsoundlevelscancausepermanenthearingloss.
Use hearing protection as recommended by your
employer or OSHA regulation.
• Keepthetoolinefficientoperating
condition.
• Operatorsandmaintenancepersonnelmustbe
physicallyabletohandlethebulk,weightand
powerofthistool.
• 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.
• 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.
• Placethetoolontheworkbeforestartingthetool.
Donotpointorindulgeinanyhorseplaywiththis
tool.
▲
!
WARNING!
FAILURE TO OBSERVE THESE WARNINGS COULD RESULT IN INJURY.

ATD-2131 - 3 - Rev. 3/19/09
Operating Instructions • Warning Information • Parts Break down
Nipple
Air Supply...
Toolsofthisclassoperateonawiderangeofairpressures.
It is recommended that air pressure of these tools measures
90PSIatthetoolwhilerunningfree.Higherpressure(over
90 psig; 6.2 bar) raises performance beyond the rated
capacityofthetoolwhichwillshortenthetool’slife
becauseoffasterwear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air
tankdaily.Cleantheairinletfilterscreenonatleasta
weeklyschedule.Therecommendedhookupprocedurecan
beviewedintheabovefigure.
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.
Operating Instructions…
Whenusingthegrinderbecarefulnottoexertexcessive
force. Too much force could be hazardous if it caused the
cuttingtoolspindletobendorbreak.
Theburningoftheworkpieceorexcessivespeedreduction
indicated too much force being applied. Changing to a free
cutting tool may be better for the desired rate of speed and
stockremoval.
Avoidhazardousconditionbymakingsurethereissufficient
gripping force on the spindle of the cutting tool by placing
the spidnle 7/16" or more inside the collet.
Troubleshooting…
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 the 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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.
Lubrication & Maintenance…
Lubricatetheairmotordailywith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.
Overfillingwillcauseareductioninthepowerofthetool.
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.
Warranty...
ATDToolswarrantsitsairtoolsforaperiodof1yeartotheconsumer.Wewillrepairany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 authorized ATD Warranty Center, 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,theywillbe
repairedfreeofchargeandtherepairedtoolwillbe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
ATDTools'soleliabilityunderthisoranyimpliedwarrantyandundernocircumstancesshallATDTools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.

ATD-2131 - 4 - Rev. 3/19/09
ATD-2131
1/4" Mini Air Die Grinder
RS2131HA
Motor Housing Assembly
RS231B02A
Air Motor Assembly
Ref. No. Part No. Description
1-12 RS2131HA Motor Housing Assembly
13-22 RS231B02A Air Motor Assembly
23 RS231B28 Retainer
24 RS231B29 Housing Cap
25 RS26437 1/4" Collet
26 RS26438 Collect Nut
27 RS26439 Wrench
28 RS26440 Wrench
Only parts indentified by Part No. above are available for purchase.