Sunex Tools SX231B User manual

SX231B: Parts Breakdown & Operating Manual 1 Rev. 05/17/10
Collet Size.....................................1/4"
Max. Free Speed ............ 25,000 RPM
Weight.......................................0.8 LB
Length .........................................5.13"
SX231B
1/4" MINI DIE
GRINDER
Average Air Consumption....... 4 CFM
Air Inlet................................. 1/4" NPT
Air Supply Hose Size.............3/8" I.D.
Sound Level......................... 94.5 dBA
SPECIFICATIONS
AVOID PROLONGED EXPOSURE TO VIBRATION
RPM OF CUTTING WHEEL MUST MEET OR
EXCEED RPM OF TOOL (25,000 RPM)
WEAR HEARING PROTECTION
ALWAYS WEAR SAFETY GOGGLES
ALWAYS READ INSTRUCTIONS BEFORE
USING POWER TOOLS
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.
RPMRPMRPM
WARNING
WARNING
Operating Instructions • Warning Information • Parts Break down

SX231B: Parts Breakdown & Operating Manual 2 Rev. 05/17/10
WARNING!
FAILURE TO OBSERVE THESE WARNINGS
COULD RESULT IN INJURY.
WARNING
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
protection when operating or performing
maintenanceonthistool.
• Highsoundlevelscancausepermanent
hearingloss.Always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.
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.
• 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.
• 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 that 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.
• Donotforcetoolbeyonditsratedcapacity.
• Do not remove any labels. Replace any
damagedlabels.
• Use accessories recommended by
SunexTools®.

SX231B: Parts Breakdown & Operating Manual 3 Rev. 05/17/10
SX231B
1/4" MINI DIE GRINDER
PARTS LIST
Part No. Description
RS26401A Motor Housing Assembly (includes ref. # 1-16)
RS231B02A Air Motor Assembly (includes ref. # 17-27)
RS231B28 Retainer (ref. # 28)
RS231B29 Housing Cap (ref. # 29)
RS26437 1/4" Collet (ref. # 30)
RS26438 Collet Nut (ref. # 31)
RS26439 Wrench (ref. # 32)
RS26440 Wrench (ref. # 33)
RS26441 Air Inlet (ref. # 34)
Only parts identified by Part No. above are available for purchase.

SX231B: Parts Breakdown & Operating Manual 4 Rev. 05/17/10
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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.
Operation...
Letthetooldothework.Donotputextremepressureonthe
machine.Thiswillonlyslowdownthespeedofthecuttingwheel,
reducecuttingefficiency,andputanadditionalburdenonthe
motor.Startthetooloffthework,setitdownontheworkevenly
andmoveinthedirectiondesiredtomakethecut.Whenfinished
cutting,liftofftheworkbeforestoppingthemotor.
NOTE:Duringoperation,safetygogglesshouldalwaysbeworn
toguardagainstflyingrustandchips.Useonlywheelsratedat
25,000RPMorhigher.
Air Supply...
Tools of this class operate on a wide range of air pressures. It is
recommendedthatairpressureofthesetoolsmeasures90PSIatthe
toolwhilerunningfree.Higherpressure(over90psig;6.2bar)raises
performancebeyondtheratedcapacityandwillshortentoolandcan
causeaccessoryfailureduetooverspeed.
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figure1.
Lubrication...
Lubricatetheairmotordailywithqualityairtooloil.Ifnoairlineoiler
isused,run1/2ounceofairtooloilthroughthetoolbysquirtingoil
intothetool'sairinletorintothenearestconnectiontotheairinlet,
reconnectingairsupply,andthenrunningtool.Donotusemorethan
1/2ounceofoil,asoverfillingwillreducetheperformanceofthetool.
Operating Instructions • Warning Information • Parts Break down
Shop for other air tools & compressors on our website.