OPERATOR'S MANUAL
iPR OFESS I ONAL I
1/4 SHEET SANDER
DOUBLE INSULATED
Model No.
315.279840
_k WARNING: Toreduce tho riskofinjury,
the user mustread and understandthe
operator'smanualbeforeusingthisproduct.
Customer Help Line: 1-800-932-3188
Sears, Roebuck and Co., 3333 Bevedy Rd., Hoffman Estates, IL 60179 USA
Visit the Craftsman web page: www.sears.com/cmflsman
983000-513
7-04
Save this manual for future reference
• Warranty.......................................................................................................................................................................... 2
• Infroduction..................................................................................................................................................................... 2
• General SafetyRules.................................................................................................................................................... 3-4
• SpecificSafety Rules...................................................................................................................................................... 4
• Symbols........................................................................................................................................................................ 5-6
• Electrical.......................................................................................................................................................................... 7
• Features........................................................................................................................................................................... 8
• Assembly......................................................................................................................................................................... 9
• Operation.................................................................................................................................................................... 9-12
• Maintenance............................................................................................................................................................. 12-13
• AcceSSories................................................................................................................................................................... 13
• ExplodedView and PartsList................................................................................................................................... 14-15
• Parts Ordering/Service..................................................................................................................................... BackPage
ONE YEAR FULL WARRANTY ON CRAFTSMAN PROFESSIONAL TOOL
If theCraftsmanProfessionaltoolfails to give completesatisfactionwithinone yearfrom date o1purchase,RETURN IT
TO THE NEAREST SEARS STORE IN THE UNITED STATES,and Searswillreplaceit, freeof charge.
Thiswarrantygivesyou specificlegalrights,and youmay also haveotherrightswhich varyfrom stateto state.
Sears, Roebuck and Co., DopL 817 WA, Hoffman Estates, IL 60179
Thistool hasmanyfeaturesfor makingits usemore pleasantand enjoyable.Safety,performance,and dependability
havebeen giventop priorityinthe design ofthisproductmakingiteasy to maintain and operate.
WARNING:Readand understand all Instruc-
tions. Failuretofollow a]] instructions listed below,
mayresultin eisctric shock,timand/orserious
personalinjury.
SAVE THESE INSTRUCTIONS
WORK AREA
• Keep your work area clean and well lit,Cluttered
benchesand dark areas invite _cc;dents.
• Do not operate power tools in explosive stmo-
spheres, such as in the presence offlammable liq-
uids, gases, or dust. Power tools createsparkswhich
may ignitethe dustor fumes,
• Keep bystanders, children, andvbltore eweywblls
operating a power tool. Distractionscan cause you to
lose control.
ELECTRICAL SAFETY
• Double Insulated tools are equipped with a polar-
ized plug (one blade iswider than the other). This
plug wi(I fit in a polarized out(st only one way. If the
plug does not fit fully in the outlet, reverse the plug.
If it still does not fit, contact • qualified eleoVldan
to install e polarized out(eL Do nat change the plug
in anyway. Doubleinsulation[] eliminatesthe need
for thethree-wire groundedpowercordand grounded
power supplysystem.
• Avoid body contact wlth grounded surfaces such
as pipes, radiators, range_, and rstrlperatore. There
Isan Increasedriskofelectricshock IfyourbodyIs
grounded.
• Don't expose power tools to rein or wet conditions`
Water enteringa powertoolwillIncrease the riskof
erectricshock.
• Do nat abuse the cord. Never use the cord to carry
the tools or pull the plug from an outlet. Keep cord
away from heat, oil, sharp edges, or moving parts.
Replace damaged cords immediately. Damaged
cords increasetherisk of electricshock.
• When operating s power tool outside,use an outdoor
exterBIon cord marked '=W-A"or =If_. Thesecords
are ratedfor outdooruseand reducethe riskofelectric
shock.
PERSONAL SAFETY
• Stay alert, watch what you are doing and use com-
men sense when operating s power tool. Do not
use tool white tired or under the influence of drugs,
alcohol, or medication. A momentof inattentionwhite
operatingpower toolsm.ayresultin seriouspersonal
injury.
• Dress properly. Do notweer loose clothing or
jewelry. Contain long hair. Keep your heir, clothing,
end gloves away from moving parts. Loose clothes,
jewelry, or long haircan be caughtinmoving parts.
• Avoidaccidental etarUng.Besure switch le off
before plugging In. Carryingtoolswithyourfinger on
the switchorpluggingin toolsthathavetheswitchon
invitesaccidents.
• Remove adjusting keys or wrenches before tuming
the tool on. A wrenchor a key that isleftattached to a
rotatingpart ofthe toolmay resultin persocaJiniury.
• Do not overreach. Keep proper footing end balance
at all times. Properfooting and balanceen_b[asbetter
con_olofthetooSin unexpectedsituations.
• Use sefetyequipment. Nwsyewear eye protection.
Dustmask, nonskidsafetyshoes,hard hat, or hearing
protectionmustbe usedfor appropriateconditions.
• Do not wear loose clothing or jewelry. Contain long
hair. Looseclothes,jewelry,or long haircan be drawn
intoair vents.
• Do not use on a ladder or un_d_ablesupport. Stable
footing on a solid surface enab)esbetter con_ol ofthe
tool in unexpectedsituations.
TOOL USE AND CARE
• Use clamps or other practical way to secure and
support the workplece to a stable platform. Holding
thework byhand oragainst yourbodyis unstableand
may lead to lossof centroL
• Do not force too/. Use the correct tool for your ap-
plication. The correct too(willdo the job better and
setar at the ratetor whichitis designed.
• Do not cee tool if=witch does not turn it on or off.
Anytoolthat cannotbe controlledwith the switchis
dangerousand mustbe repaired.
• Disconnect the plug from power source before
making any adjustments, changing accessories,
or storing the tool. Such preventivesafety measures
reduce theriskof startingthe tool accidentally.
• Store idle tools out of the reach of children and
other untrained persona. Tootsare dangerousinthe
handsofuntrainedusers.
• Mdntsln tools wtth cars. Keep cuffing tools sharp
and clean. Properlymaintainedtoolswith sharp cut-
ting edges areless likelyto bind and are easierto
control
• Check for misaitgnment or binding of moving parts,
brsekags of parts, and any othe_ condition that
may effect the tool's operation. If damaged, have
the tool serviced before using. Many accidentsare
caused bypoorlymaintained tools.
• Use onlyaccessories that are recommended by the
manufacturer for your model. Accessoriesthat may
be su[tab(efor one too{,may become hazardouswhen
usedon another tool.
• Keep the tool end its handle dry, clean end free
from oil end grease. ANvsysuse a cleanclothwhen
cleaning. Never usebrake fluids, gasoline,petToioum-
based products,or anystrongsolventsto cleanyour
tool.Followingthis ruJewJflreduce theriskofloss of
control and deteriorationofthe enctos6veplastic.
SERVICE
• Tool service must be performed only by qualified
repair personnel. Serviceor maintenanceperformed
by unqualifiedpersonnelmay re,suitina riskof injury.
• When servicing • tool, use only Identical replace-
ment parts, Followins;:ructionsin the Maintenance
section ofthLsmanual. Use ofunauthorizedparts or
failure to follow MaintenanceInstructionsmay createa
riskofshock or injury.
• Hold tool byInsulated gripping surhlcse when
performing an operation where the cutting tool may
contact hidden wiring or Its own cord. Contactwith
e "live"wire willmake exposedmetal parts ofthe cut-
tingtool "live"and shockthe operator.
I Never use this or any power sander for wet sanding
or (io,uid polishing. Failureto comptywill increasethe
risk o#electricalshock.
• Know your power tool. Read operator's manual
carefully. Learn Its applications end limitations, as
well as the specific potential hazards related to this
tool. Followingthisrutswillreduceths riskof electric
shock,firs,or seriousInjury.
• Always wear safety glasses. Everyday eyeglasses
have only_mpsct-re=dstsnt lenses; they ere NOT
safety glasses. Followingthis rulewil(reduce the risk
ofsedouspersonalinlury.
• Proteof your lungs. Wear e face or dust meek if the
operation Is dusty. Fallowingthisrulewi[Ireducethe
riskofserious perser_l injury.
• Protect your hearing, Wear hearing protection dur-
Ing extended Periods of operation. Followingthis rule
wiltreduce therisk of seriouspersonal injury.
• Inspect tool cords lc_icxliceHy end, ffdamaged,
have repaired at your nearest Authorized ServJca
Center. Constantly stay aware of cord location. Fol-
lowing thisrulewJilreducetherisk ofeisctrJcshock or
fire.
• Check damaged parts. Before further use of the
tool, • guard or other pert that is damaged should
be carefully checked to determine that It will op-
erate properly and perform its intended function.
Check for alignment of moving parts, binding of
moving parts, breakage of parts, recur=ling,and
any other conditions that may effect It_ opera.
Uon. A guard or other part that is damaged should
be propEwlyrepaired or replaced by an authorized
service center. Followingthis rulewfffreduce therisk
of shock, fire,or seriousinjury.
• Make sure your extension cord is In good oondl-
tia_'LWhen using an extsns_oncord, be sure to use
one heavy enough to carry the current your product
will draw. Awlre gauge size {A,W.G.) of at least 16
is recommended for an extension cord I00 feet
or tess In leagth. A cord exceeding 100 feat is not
reoon'mnondod. If in doubt, use the next heavier
gaul. The =-nailer the gauge number, the he=vler
the cord. An undersized cordwJJJcauses dropin line
vol_tgsresultingInlossof powerend overheating.
• Inspect for end remove all nails from lumber before
using this tool. Followingthis rulewill reducethe risk
ofseriouspersePalInjury.
• Save these Instructions. Referto themfrequentlyand
use _ to instruct othe_swho may usethistool. If
you loan someone this tool, loan them theseinstruc-
tionsa/so.
WARNING: Somadust crsatad by power sanding,sawing,grinding, drilling,end otherconstructionactivities
containschemicalsknownto cause cancer,birthdefectsor otherreproductiveharm.Someexamples ofthese
chemicalsare:
• lead from lead-based, palms,
. crystallines_t(cafrom bricksand cement and othermasonry produc_s,and
• arsenicand chromiumit'om chemically-treated{umber.
Yourriskfromthese exposuresvaries,dependingon how oftenyou do thistype ofwork.To reduceyoursxposum
to thesechemicals:work ina well ventilatedarea, andwork with approvedSafetyequipment,such as thosedust
maskstha_arespeciallydesignedto filterout microscopic particles.
4
Some of the followingsymbolsmay be used on this tool. Pleasestudy them and learntheir meaning. Proper
interpretationof thesesymbolswillallowyouto operate thetool batterand safer.
SYMBOL NAME DESIGNATION/EXPLANATION
V Volts Voltage
A Amperes Current
Hz Hertz Frequency(cyclesper second)
W Watt Power
rain Minutes "i3me
'%, AlternatingCurrent Type of current
,= DirectCurrent Typeor a chsracterLsticof current
no No LoadSpeed Rotationalspeed,at no load
_] ClassII Consb'uctJon Doub]e-]nsu)_tedconstruction
..Jm]n Per Minute Revolutions,strokes,surface speed, orb_setc., per minute
(_ Wet ConditionsAlert Do not exposeto rainor usein damp locations.
Read The Operator'sManual To reducethe risk ofinjury, usermustread and understand
operator'smanualbeforeusingthis product.
O Atwaysweer safety gogglesor safetyglasseswith aide
Eye Protection shieldsand a fun face shieldwhen operatingthis product.
A Safety Alert Precautionsthat involveyoursafety.
(_ Failuretokeep yourhandsaway fromthe bladewillresultin
No Hands Symbol seriouspersonalinjury.
(_) Failureto keep yourhandsaway horntheblade wil)resultin
No HandsSymbol seriouspersonalinjury.
O Failureto keepyour handsaway fromthe bladewi_resuttin
No HandsSymbol seriouspersonalinjury.
,/_ No HandsSymbol Faitureto keep yourhands away from the bladewil!resuttinseriouspersonalinjury.
_) Hot Sur/ace Toreduce theriskof _n[uryor damage, avoidcontactwlthanyhot surface.
5
The following signal words and meanings are intended to explain the levels of risk associated with this product.
SYMBOL SIGNAL
A DANGER:
A WARNING:
A CAUTION:
CAUTION:
MEANING
indicates an imminentlyi-_g.ardoussitL_tion,which, if not avoided,will
rssultin death or seriousinjury.
|nd}catesa potentiallyhazardoussituation,which, if not avoided, could
resultin death or seriousinjury.
Indicat_ a potentiallyhazardoussituation,which, {f not avoided, may
resultinminor ormoderate injury,
(WithoutSafety Alert Symbol) Indicates a situation that may result in
propertydamage.
SERVICE
Servicingrequiresextremecareand knowledgeand
shouldbe performed onlybya qualilted servicetech-
nician.Forservicewe suggestyoureturnthe productto
yournearsstAUTHORIZED SERVICE CENTER for repair.
When servicing,useonlyidenticalreplacementparts.
A WARNING: Toavoid seriouspersonalLnjury,do
not attempt to usathisproductuntilyouread
thoroughlyand understandcompletelythe
operator'smanual. Savethis operator'smanual
and review frequently for continuingsafe opera-
tionand instructingotherswho may usethis
product.
,_ WARNING:
The operationof any powertoolcan resultinforeign objectsbeingthrownintoyoureyes,which
O canresultin saverseye damage. Beforebeginningpowertooloperation,always weareafaty
gogglesor safatyglasseswith sideshieldsand a fun face sh'leldwhen needed.We recommend
Wide VisionSafetyMask for usaovereyeglassesor standard safety glasseswith sideshields.
Alwaysuseeye protectionwhichismarked to complywithANSI Z87.1.
SAVE THESE INSTRUCTIONS
6
DOUBLE INSULATION
Double insulationisa concept insafety in electricpower
tools, which eliminates the need for the usualthres-wlre
groundedpowercord. AJiexposedmetal partsare
isolatedfrom the internalmetal motorcomponentswith
protectinginsulation.Double insulatedtools do not need
to be grounded.
WARNING: The double insulated systemis
intendedto pmteot the userfrom shookresulting
from a break in the tool's internalinsulation.Observe
ell norm_ safetypresautio_s to evo{daIeotl'tce,I
shook.
NOTE: Servicingof a tool withdouble insulationrequires
extreme careand knowledge ofthe systemand should
be performedonlyby a qualified servicetechnician. For
service,we suggestyou return the tool toyournearest
authorrzed servicecenterfor repair.A_vaysuseoriginal
faotory replacementpartswhen servicing.
ELECTRICAL CONNECTION
This toolhasa precLsion-builtslectYicmotor,Itshould be
connectedto a power supply that Is 120 volts, 60 Hz,
AC only (normal household current). Do not operate
this toolon directcurrent (DC).Asubstantialvoltagedrop
willcausea loss of powerand themotorwill overheat.If
yourtool does not operatewhen plugged into anoutlet,
double-check the power suppry.
EXTENSION CORDS
When usinga powertoolat a considerabledistance from
a powersoume, be sureto usean extensioncordthat has
thecapacity to handle thecurrentthe tootwilldraw. An
undersizedcordwillcausea drop in tinsvoltage,resulting
inoverheatingand lose ofpower,Use the ohartto deter-
minethe minimumwire size requiredinan extensioncord.
Only roundjacketed cordslistedbyUndsrwriter'sLabora-
tories(UL)shouk_be used.
Whenworkingoutdoorswith a tool, usean extension
cordthat isdesigned for outsideuse. Thistype ofcord is
designatedwith =WA=onthe cord'siacket.
Beforeusingany extensioncord, inspectit for looseor
exposedwiresand cutor worninsulation.
•"/_mpem rating (on _o01{aCeplmte)
0-2.0 2.1-3.4 3.5-5.0 5,1-7,0 7.1-12.0 12.1-16.0
Cord Length W'weSize (A.W.G.)
25' 16 16 16 16 14 1.4
50' 16 16 16 14 14 12
100' 18 16 14 "{2 10 --
NOTE: AWG = Amedcan WireGauge
WARNING: Keepthe extension cordclearofthe
workingarea, Positionthe cordsothat itwiUnot get
caughton lumber,toolsor otherobstructfonswhile
you areworkingwith a powertool. Failureto do so
canresultinseriouspersonalinjury.
WARNING: Checkextensioncordsbefore each
use. Ifdamaged repfaceImmediately.Never usetool
with a damaged cordsincetouchingthe damaged
area couldcauseelectricalshock resu{tinginserious
Injury.
PRODUCTSPECIFICATIONS
SizeofPaper...................................................... 1/4 Sheet
Motion..................................................................... Orbital
Orbfta[Diameter..................................................... 1/16 in.
No LoadSpeed ............................................... 14,000/min.
input................................ 120 V,60 Hz, AC only,2.4 Amps
NetWeight............................................................... 3.5 tba.
Paper Type................................ Non-AdhesiveSandpaper
AdhesiveSandpaper
ON
SWITCH
OFF
DUST
BAG
PAPER
PUNCH
PLATEN
CUSHION
PAPER
CLAMP
LEVER
PAPER
CLAMP
Fig. 1
KNOW YOUR SANDER
See Figure 1.
Beforeattempting to usethis product,familiarizeyourself
with aftoperatingfeatures and safety rules.
The sanderhasa comfortablepalm grip handlethat
provides maximum one-hand control and comfortand re-
duces operatorfetfgue duringuontinuouasandingopera-
tions.The sander also has quickaction paperclamps and
issuitablefor sandingwith coame, medium,and fine grit
sandpaper.
8
SWITCH
The conveniently locatedsealed slideswitch helpskeep
out dustfor a longerlife.
PAPER PUNCH
Dustlesssanding occurswhen you use the paperpunch
to punch holesin the sandpaper priorto sanding.
DUST COLLECTION
Use eitherthedust bag includedor attach a 1-1/4 or
2-1/2 fn. vacuum hose for dustcol/ection.
UNPACKING
Thisproducthasbeenshippedcompletelyassembled.
• Carefullyremovethe too[ and anyaccessories from the
box. Make surethat a_litemslisted in the packing mist
are inc)uded.
• Inspectthetoo[ carefullyto make sure no breakageor
damage occurredduringshipping.
• Do not discardthe packingmateris[untilyou have
carefullyinspected and satisfactorilyoperated thetool.
• If anypartsare damagedor missing, please call
1-800-932-3488 for assistance.
PACKING LIST
Sander
Dust Bag
Paper Punch
Sandpaper(1)
Operator'sManual
_k WARNING" Ifany partsare missingdo notoperate
thLstooluntilthe missing partsarerepracsd, Failure
to do so couldresultinpossiblessr[ous persosai
injury.
_ WARNING: Do notattempt to modifythis tool
or create accessoriesnot recommended for use
with thistool. Any suchatterat(on or modification Ls
misuseend couldresult ine hazardouscondition
feadiogto possibleseriouspersona[In}ury.
A WARN|NG: Do not connecttopower supplyuntil
assembly iscomplete, Failuretocomplycould result
inaccidentalstartingand possibleseriousinjury.
_k WARN|NG: Do not allow familisrity with tools
to make you careless.Rememberthat a careless
fraction of a second issufficientto inflictserious
injury.
_L WARNING: Alwayswearsafety gogglesor safety
glasseswith side shieldswhen operating power
tools,Failureto do socould rseultin objectsbeing
throwninto youreyes resultinginpossibleserious
injury.
INSTALLING SANDPAPER
The cushionon the sander givesyou theoptionof using
either non-adhesivesandpaperthat clamps to theplaten
or adhesive backed sandpaper with pressuresensitive
adhesive backingthatsticksto the cushion.
INSTALLING NON-ADHESIVE SANDPAPER
See Figure2.
• Unplug thesander.
• inspectsandpaper beforeinstalling.Do not use if bro-
ken or defsc_ve.
• Ifrap{acingsandpaper, removeoldsandpaper. To
removepaper, release paper clamp by lifting up on
leverand disengagingitfromthe tab onthe platen.
• Insertend ofnew 1/4sheet sandpaper approximately
(1/2 inch) underthe paper clamp.
• Lift up on paper clamp (everand lock intop(ace.Apply
downwardpressureto conformsandpaper to p(atan.
• Wrap sandpaper aroundcushion.Lift lever on opposite
end ofsanderand insertlooseend ofsandpaperunder
the paper clamp.Fit sandpaper againstcushionas
fight as possible.
• Liftup on paperclampleverand lock _ntoplace.
CUSHION
NON-ADHESIVE
SANDPAPER
PAPER
CLAMP Fig. 2
LEVER
INSTALLINGADHESIVESANDPAPER
See Figure3.
•Unp]ug thesander.
• Ifreplacingadhesivesandpaper,remove oldsand-
paperby peelingitoffcushion.Ifreplacingregular
sandpaper,relsase paper C_T_pby liftingup onpaper
cramp lever and disengagingitfrom thetab on the
platen.
• Remove non-adhesivesandpaper, then liftup on paper
damp lever end lock it into place.
• Carefullypeel adhesivebacking from new 114sheet
sandpaper.
• Positionsandpaper, makingsure frontedge of sand-
paperisalignedwith front edge ofthe cushion,then
carefullypress_cky side ofsandpaper on cushion.
NOTE: Sandpapermust be a[igned with the front edge
ofthe cushionfor proper functioningoftheflush sand-
ing feature.
The cushion onthe sander ksapprox_nnately
1/4 in.smallerthan precutadhesive-backedsanding
sheets. If desiredyou may want to vim offthe over-
hang ofsandpaperon the back side ofcushion.The
cushion hasbeen made smallersothat multiple sheets
ofnonadhesivesandpapercan be installed.
PAPER PUNCH
See Figure4.
A paper punch template has been suppliedwith the sand-
er. Itshouldbe used for sflgning and punchingholesin the
sandpaper for alignmentwith the holes in the cushion.
Punchingthe holes propertyis a necessarystep )norder
tor the dustlessfeature ofthe sender to functionproperty.
• Instattsandpaperon thesander.
• Align sander cushionto paperpunchas shown by the
iconon the paper punchtemplate.
• Pushdownon sander.
CUSHInN
ADHESIVE
SANDPAPER
PAPERPUNCH
Fig.4
Fig. 3
DUSTLESS SANDING
See Figure 5 - 6.
The dustbag providesa dust collectionsystemfor the
sander.Sandingdust isdrawnup throughtheholesinthe
sandpaperend cushion and collects in thedust bag dur-
ing sanding operation.Formore effLcientoperation,empty
dust bag when halffull.
TO INSTALL DUST BAG:
• Unplugthe sander.
• Aligngrooves on dust bag with notchesonsander dust
exhaust.
• Slide dust bag ontodust exhaust.
• Turn clockwiseuntilbag looksintoplace.
TO REMOVE DUST BAG FOR EMPTYING:
• Unplugthe sander.
• Turn dust bag counterclockwiseuntilit stops turning.
• Slidedust bag offsanderdustexhaust.
• Shake to empty.
10
DUST
BAG
DUET
EXHAUST
Fig.5
TO CONNECT VACUUM HOSE:
See Figure6.
When sandingfor an extended periodoftime, you can
easilyattach the dust collectionsystemof thesander to s
vaouum.
To Attach:
• Unplugthe sander.
• Remove dustbag from sander.
• Attach vacuum hoseto dust exhaust.
NOTE: Vacuum hosefits insidedustexhaust.
• Connect sander and vacuum to powersupply.
_kWARNIING: When sanderisnot connected to
vacuum,always installdust bag back onsander.
Fallurato do so could causesanding dustor foreign
obiectsto bethrown intotheface or eyeswhich
couldresultinposaibie.sariousinjury.
SANDPAPER SELECTION
Selectingthe correctsize gritand type sandpaperis
an extremelyimportantstep inachievinga highquality
sandedfinish.Aluminumoxide,siliconcarbide,and other
syntheticabrsaivea are bestfor power sanding. Natural
abrasivessuchas flintand gernetaretoo solt for eco-
nomicaluse in powersanding.In genera[,coarse gritwill
remove the most material and finer gritwillproducethe
best _nish in allsanding operations.The conditionof the
surfaceto be sandedwilldeterminewhichgritwilldo the
job. If thesurfaceis rough,start with a coarsegritand
sand untilthesurface Isuniform.Medium gritmay then
be usedto removescratchesleftbythe coarsergrita,'_d
finergritusedfor finishingof thesurface.Alwayscontinue
sanding with each grituntilsurfaceis uniform.
NOTE: Do not usesanderwithout sandpaper. Doingso
willdamage the cushion.
CAUTION: Becarafutnotto letyour handcom-
pletelycoverthe air vents.
SANDING
See Fcgures7- 8.
Clamp orotherwisesecure thework to preventitfrom
moving underthe sander.
,_ WARNING: Unsecuredwork couldbe thrownto-
waraLstheoperatorcausing in]ur_.
Hold the sander in front and away fromyou, keepingit
clear ofthe workpiece. Startthesanderby slidingthe
switchbutton to theON positionand lettingthe motor
buildto itsmaximum speed. Graduallylower the sander
on thework with a stightforward movement.Move it
slowiyusingforward end backwardstrokes.
1-1/4in.VACUUMHOSE DUSTEXHALI_r
2-1/2In.VACUUMHOSE DUSTEXHAUST
Fig. 6
NOTE: A standard 1-1/4 in. vacuumhose connectionfits
insidethe smallerdiameterholeinsidethe dust exhaust,
whilea standard2-1/2 In. vacuumhose connectionfits
insidethe largerholeof thedust exhaust.
fl
Fig. 7
Donotforce.Theweightofthe unitsuppliesadequate
pressure.Let the sandpaper and sander do the work. Ap-
plyingadditional pressuresrowa the motor,rapidlywears
sandpaperand greatlyreducessander speed. Excessive
pressurewill overloadthe motorcausingpossibledamage
from motor overheatingand canresultininferiorwork.
Any finishorresinon wood maysoften from thefrictional
ORBITAL MOTION
See Figure9.
Orbitalmotion is idealfor fast cuttingactionwhen remov-
ingoldfinishes,smoothingroughwood, cuttingstock
downto requireddimensions,or for finishingsurfacesto
be painted.The sandpaper movesintiny circlesat a very
highspeed, arrowingthe sanderto move easily.
heat. Do not allow sanding on one spot too long, as the
sander's rapidactionmay remove too muchmatarial,
making the surface uneven.
The frontedge o_the sander allows ftushsandingin
corners.AJwayaremovesanderfrom workptecebefore
turningthe sander.
Fig. 8
Fig.9
A WARNING: When servicing,useonlyidentical
Craftsmanreplacement parts.Use ofanyother parts
may createa hazardor cause productdamage.
A WARNING: Alwayswear_ataty gogglesorsafety
glasseswith side shie/dsduringpower tooloperation
or when blowingdust. Ifoperationisdusty,also wear
a dustmask.
GENERAL MAINTENANCE
Avoid usingsolventswhen cleaning plasticparts. Most
plasticsaresusceptibleto damage fromvarioustypesof
commercialsolventsand may be damaged bytheir use.
Use clean clothsto remove dirt,dust,oil, grease,etc.
WARNING: Do notat any time letbrake fluids,
gasoline,petroleum-b_Lsedproducts,penetn_ting
oils, etc., come in contactwith plasticparts.Chemi-
cals candamage, weaken or destroyplasticwhich
may resultin seriouspersonalInjury.
Electrictoolsused on flbargLseamaterial,wallboard,
specklingcompounds,or plastereresubjectto scsal-
statedwear and possibleprematurefaiturebecause the
fiberglass chipsand grindingsare highlyabrasiveto bear-
ings,brushes,commutators,etc. Consequently,we do not
recommendedusingthistoolfor extendedwork on these
typesof materials. However,it youdo work with anyof
these materials,itis extremelyimportantto clean thetool
usingcompressedair.
LUBRICATION
Allof thebearingsin this toolam lubricatedwith a suffi-
cientamountof highgradelubricantfor the lifeof theunit
undernormaloperatingconditions.Therefore,nofurther
lubricationisrequired.
Onlythe partsshownon the parts listare intendedtobe
repairedor replaced bythe customer.All otherparts
shouldbe replacedat a SearsServiceCenter.
12
BRUSH REPLACEMENT
Rgure 10.
• Unp[ugthe sander.
• Remove screws(3)fl'om top coverof sander.
• Remove top cover.
• Remove clamp screws(2.).
• Removebrushtube clamps(2).
• Disconnectred and blacklead terminalsfl'om brush
tubes.
• Remove brushassemblies(2).
• Check for wear. Replacebothbrushassemblieswhen
e(therhas tess than 1/4 in. length of carbon remaining.
Do not replaceone side withoutreplacingtheother.
• Installnew brushassemblies.Make sure curvature
of brushm_ches curvatureof motorand thatbrush
moves freely in brushtube.
• Reassembleby reversingthe steps listedabove.
• Tightenallscrews securely.Do not overtighten.
BLACX
LEAD
Fig._0
The following recommendedaccassodas arecurrentlyawitab_eat Searsretail stores:
• AluminumOxide SheetsWith Paper Backing(1/4 Sheet)
X-Fine, Fine, Medium,Coarse
• Presaure-sensitTveAdhesive,Paper Backed Sheets(1/4 Sheet)
X-Fine, Fine, Medium, Coarse
• The FollowingStandard4-1/2 in.X 11 in.SandingSheetsCan BeCut To FitThe Sander
X-Fine, Fine,Medium, Coarse
A WARNING: Currentattanhments end accessoriesevailablafor usewith this tsof are listedabove. Do not useany
attachmentsor accessoriesnot recommendedby themanufacturerofthistool. The useofattachments oracces-
sor(esnot recommsnde_ can resultIn ser(ouspersona(injury.
13
CRAFTSMAN 114 SHEET PROFESSIONAL DUSTLESS SANDER
MODEL NUMBER 315.279840
SEENOTEt PAGE15
f
J
11_ !.J 1.
14
I
CRAFTSMAN 1/4 SHEET PROFESSIONAL DUSTLESS SANDER
MODEL NUMBER 315.279840
The model number will be found on a plate a_a_-hedto the motor housing.Always mention the model |
number in all correspondence regardingyourPROFESSIONAL SANDER orwhen orderingrepair parts.
J
SEE BACK PAGE FOR PARTS ORDERING INSTRUCTIONS
Key Pad
No. Number
1 660133001
2 512486001
3 5614001
4 617800-002
5 2'30069022
6 940075047
7 940114103
8 512355001
9 968"/00-004
10 630874002
11 301123001
12 560671002
13 623019-004
14 590929001
15 631015001
16 590931002
17 617966-030
18 300027048
19 g00510001
20 590999001
w_
983000-513
PARTS LIST
Description Qty,
Screw (8-18 x 5/8 fn.)...................................................................................... 3
Top Cap ........................................................................................................... I
Screw (5-15 x 1/2 in.)...................................................................................... 2
BrushClamp ................................................................................................... 2
Carbon Brush Assembly ................................................................................. 2
Data Plate........................................................................................................ 1
Logo Plate....................................................................................................... 1
Adapter............................................................................................................ 1
Screw (6-19 x 5/16 in.).................................................................................... 2
Retaining Plats................................................................................................ 2
SpringClamp .................................................................................................. 2
Dust Shrefd...................................................................................................... 1
Rubber Plug.................................................................................................... 1
Platen .............................................................................................................. 1
PJuminumPlate ............................................................................................... 1
Cushion........................................................................................................... 1
Screw (8-10 x 5/8 in.] ...................................................................................... 4
Dust Rag Assembly(IncludesKey No.19)....................................................... 1
Dust B_g ......................................................................................................... 1
Paper Punch.................................................................................................... 1
Sandpaper
Operator's Manual
NOTE: The assembly shown representa an imporlmnt part ot the Double Insulated System. To avoid the
pomliblllty of alteration or damage to the 8]p_tem, mmttce should be performed by your nearest
Sears Repair Center. Contact your nearest Sears Reran Store for Service Center Inform'don.
*** Gomplete assortment available at your Neareat 8earn Retail Store ,
15
Your Home
For repair- In your home- of all major brand appliances,
lawnand garden equipment, or heating and coolingsystems,
no matter who made it, no matter who sold itl
For the replacement parts, accessoriesand
owner's manuals that you need to do-it-yourself.
For Sears professional installationof home appliances
and items likegarage door openers and water heaters.
1.800-4-MY-HOME ® (l-eoo-48s-46_)
Call anytime, day or night (U.S_. and Canada)
www.lmar_com www.seara.ca
Our Home
For repair of carry-in items likevacuums, lawn equipment,
and electronics, call or goon-line forthe locationof your nearest
Sears Parts & Repair Center.
1-800-488-1222
Call anytime, day or night (U.S.A. only)
www.sears.com
To purchase a protectionagreement (U.Sa_.)
or maintenance agreement (Canada) on a productserviced by Sears:
1-800.827-6655 (u.sJ_.)
1-800-361-6665 (Canada)
Para pedir servicio de repamcidn
a domicilio, y pare ordenar piezas:
1-888-SU-HOGAR"
(%888-784-6427)
Au Canada pour service en francvais:
1-800-LE-FOYER "c
(1-800-533-6937)
www.sears.ca
® Reglltemd Trademmk/ _ TrademstkI aMSel_ieeMark orSeam, Roebuckmd Co.
® Marca Reglstlada/'ra MarcadieFibdca / _ Marcade Servlclode Sears,Roe_k _ _.
acMa_ue de cornrnemeJuoI_ d6p_e_edieSears,RoebuckandCo. O Sean;,Roebuckind Co.
/