Sunex SX211A User manual

SX211A: Parts Breakdown & Operating Manual 1 06/08/09
Operating Instructions • Warning Information • Parts Break down
Max. Free Speed ............ 11,000 RPM
Wheel Size .......................................4"
Air Inlet................................. 1/4" NPT
Air Supply Hose Size.............3/8" I.D.
Recommended
Air Pressure ...............90 PSI (6.2 Bar)
SX211A
4" HEAVY
DUTY ANGLE
GRINDER
Average Air Consumption....... 6 CFM
Sound Pressure Level ............ 89 dBA
Length ....................................... 9-1/2"
Weight..........................................4 LB
SPECIFICATIONS
ALWAYS READ
INSTRUCTIONS
BEFORE USING
POWER TOOLS
ALWAYS WEAR
SAFETY GOGGLES
WEAR HEARING
PROTECTION
AVOID PROLONGED
EXPOSURE TO
VIBRATION
RPM OF GRINDING
WHEEL MUST EXCEED
RPM OF TOOL
(11,000 RPM)
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.
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RPMRPMRPM

SX211A: Parts Breakdown & Operating Manual 2 06/08/09
WARNING!
FAILURE TO OBSERVE THESE WARNINGS
COULD RESULT IN INJURY.
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.
 • 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®.
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SX211A: Parts Breakdown & Operating Manual 3 06/08/09
SX211A 4" HEAVY DUTY ANGLE GRINDER
DESCRIPTION DESCRIPTION
PART
NO. PART NO.
REF.
NO. REF. NO.QTY. QTY.
1 RS21101 MotorHousing 1
2 RS21158 SpringPin(4x28) 1
3 RS21157 AirInlet 1
4 RS21160 ThrottleLeverAssy. 1
5 RS41205 ValveStem 1
6 RS41206 Bushing 1
7 RS41207 O-Ring(4.9x2.2) 2
8 RS21154 ValveSpring 1
9 RS21156 ThrottleValveHousing 1
10 RS41210 ThrottleLeverPlug 1
11 RS43006 O-Ring(10x2) 1
12 RS21146 Plunger 1
13 RS30524 BallBearing(608ZZ) 2
14 RS21126 RearEndPlate 1
15 RS21124 Rotor 1
16 RS21125 Vanes 4
17 RS21122 SpringPin(3x8) 1
18 RS41218 Cylinder 1
19 RS21120 FrontEndPlate 1
20 RS21118 BallBearing(6201Z) 1
21 RS41221 LockNut 1
22 RS41222 BevelGear 1
23 RS21151 CouplingNut 1
24 RS43007 Screw(TS2.9) 2
25 RS41225 Deflector 1
26 RS41226 Spacer 1
27 RS21102 Screw(M6x6) 1
28 RS21114 BallBearing(626ZZ) 1
29 RS21113 RetainingRing(STW-10) 1
30 RS21110 BevelGear 1
31 RS21143 WaveWasher(WW-10) 1
32 RS21109 BallBearing(6202ZZ) 1
33 RS21111 Spindle(3/8"-24UNF) 1
34 RS21112 Key(3x13) 1
35 RS21108 Gasket 1
36 RS21107 Retainer 1
37 RS41237 DiscCover 1
38 RS41238 Flange(3/8"-24UNF) 1
39 RS21134 GrindingWheel(4") 1
40 RS41240 FlangeNut(3/8"-24UNF) 1
41 RS41241 AdjustScrew 1
42 RS41242 AdjustNut 1
43 RS41243 Screw(M5x16) 4
44 RS187144 SpringWasher(M5) 4
45 RS21128 Spring 1
46 RS21144 GovernorAssy.(Incl.#12,
41,42,45,46,47(6),48(2) 1
47 RS21145 Pendulum 6
48 RS21147 SpringPin(3x12) 2
49 RS21139 O-Ring(37.8x1.78) 1
50 TorsionSpring(Incl.w/#4) 1
51 ThrottleLeverLock(Incl.w/#4) 1
52 RS78741 SpringPin(3x18) 1
53 RS21141 Spanner 1
54 RS41254 PinWrench 1
55 RS41255 Handle 1
56 RS188036 O-Ring(10.5x1) 1

SX211A: Parts Breakdown & Operating Manual 4 06/08/09
Operation...
Always use the recommended wheel guard to
prevent injury from broken grinding wheel parts.
If a guard has withstood a wheel breakage,
discontinue its use and replace it with a new
guard. It may be damaged. Position the guard
between the grinding wheel and the operator. Use barriers to
protectothersfromwheelfragmentsandgrindingsparks.
Always wear impact-resistant eye and face
protection when involved in the operation of this
tool. Even small projectiles can injure eyes and
causeblindness.Agrindingwheelthatburstscan
cause very serious injury. Daily measure the air
grinderspeedwithatachometertomakesureit'snotgreaterthan
theRPMmarkedonthegrindingwheel.Neveruseagrindingwheel
markedwithaspeedlowerthantheairgrinderspeed.
Beforegrinding,testgrindingwheelbybrieflyrunningthetoolat
fullthrottle.Besuretouseabarrier(suchasunderaheavywork
table)tostopanypossiblebrokenwheelparts.
To Assemble Grinding Discs:
1. Usestopspanner(#53)toholdgearshaft(#33).
2. Screwonflange(#38)withshouldersidefacingtool.Tighten.
3. Attachgrindingdiscwheel.
4. Screwonflangenut(#40),shouldersidefacingtool.
Securetightly!
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ofthetoolwhichwillshorten
tool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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.
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.
Operating Instructions • Warning Information • Parts Break down
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