3M 20237 Instruction Manual - page 4
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8
PARTS LIST FOR PN 28331 & 28346, Extended 18,000 RPM DIE GRINDERS
PartsPage
*Declarednoiselevels;measurementscarriedoutinaccordancewithstandardENISO15744:2002.
**DeclaredvibrationlevelsinaccordancewithEN12096;measurementscarriedoutinaccordancewithstandardENISO8662-13:1997.
IMPORTANTNOTE:Thenoiseandvibrationvaluesstatedinthetablearefromlaboratorytestinginconformitywithstatedcodesandstandardsandarenot
sufficientriskevaluationforallexposurescenarios.Theactualexposurevaluesandamountofriskorharmexperiencedtoanindividualisuniquetoeach
situationanddependsuponthesurroundingenvironment,thewayinwhichtheindividualworks,theparticularmaterialbeingworked,workstationdesign,as
wellasupontheexposuretimeandthephysicalconditionoftheuser.3Mcannotbeheldresponsiblefortheconsequencesofusingdeclaredvaluesinsteadof
actualexposurevaluesforanyindividualriskassessment.
PRIORTOTHEOPERATION
Thetoolisintendedtobeoperatedasahandheldtool.Itisalwaysrecommendedthatwhileusingthetool,operatorsstandonasolidfloor,inasecureposition
withafirmgripandfooting.Beawarethatthesandercandevelopatorquereaction.SeethesectioninSAFETYPRECAUTIONSin.
Useacleanlubricatedairsupplythatwillgiveameasuredairpressureatthetoolof6.2bar(90psig)whenthetoolisrunningwiththeleverfullydepressed.Itis
recommendedtouseanapproved10mm(3/8in)x8m(25ft)maximumlengthairline.ConnectthetooltotheairsupplyasshowninFigure1.Donotconnect
thetooltotheairlinesystemwithoutaneasilyaccessibleairshutoffvalve.Itisstronglyrecommendedthatanairfilter,regulatorandlubricator(FRL)beused
asshowninFigure1asthiswillsupplyclean,lubricatedairatthecorrectpressuretothetool.Inanycaseappropriateairpressureregulatorsshallbeusedat
alltimeswhileoperatingthistoolwherethesupplypressureexceedsthemarkedmaximumofthetool.Detailsofsuchequipmentcanbeobtainedforyourtool
distributor.Ifsuchequipmentisnotused,thetoolshouldbemanuallylubricated.Tomanuallylubricatethetool,disconnecttheairlineandput2to3dropsof
suitablepneumaticmotorlubricatingoilsuchas3M™AirToolLubricantPN20451,FujiKosanFK-20orMobilALMO525intothehoseend(inlet)ofthetool.
Reconnecttooltotheairsupplyandruntoolslowlyforafewsecondstoallowairtocirculatetheoil.Ifthetoolisusedfrequently,lubricateitonadailybasisor
lubricateitifthetoolstartstosloworlosepower.Itisrecommendedthattheairpressureatthetoolbe6.2bar(90psig)whilethetoolisrunningsothemaximum
RPMisnotexceeded.Thetoolcanberunatlowerpressuresbutshouldneverberunhigherthan6.2bar(90psig).Ifrunatlowerpressuretheperformanceofthe
toolisreduced.
ProductConfiguration/Specifications
Operating/MaintenanceInstructions
Model Number
Collet
Speed RPM
Product Net
Wt kg
(lb)
Height
mm (in)
Length mm
(in)
*Noise Lever
dBA Pressure
(Power)
**Vibration
Level m/s
2
(ft/s
2
)
**Uncertainty
K m/s
2
20237
25126
1/4in
6mm
20,000
0.77(1.69)
0.77(1.69)
76.2(3)
76.2(3)
196(7.5)
196(7.5)
83.5(95.1)
83.5(95.1)
<2.5(<8.2)
<2.5(<8.2)
NA
NA
20238
25127
1/4in
6mm
18,000
0.77(1.69)
0.77(1.69)
76.2(3)
76.2(3)
196(7.5)
196(7.5)
83.5(95.1)
83.5(95.1)
<2.5(<8.2)
<2.5(<8.2)
NA
NA
20239
25128
1/4in
6mm
12,000
0.93(2.06)
0.93(2.06)
81.2(3.2)
81.2(3.2)
254(10)
254(10)
83.5(95.1)
83.5(95.1)
3.62(11.9)
3.62(11.9)
1.81
1.81
20240
25129
1/4in
6mm
8,000
0.93(2.06)
0.93(2.06)
81.2(3.2)
76.2(3.2)
254(10)
254(10)
83.5(95.1)
83.5(95.1)
3.62(11.9)
3.62(11.9)
1.81
1.81
28332
28347
1/4in
6mm
4,000
0.717(1.58)
0.717(1.58)
69.9(2.75)
69.9(2.75)
200(8.875)
200(8.875)
87.0(98.6)
87.0(98.6)
5.52
5.52
0.732
0.732
28330
28345
1/4in
6mm
18,000
0.512(1.13)
0.512(1.13)
69.9(2.75)
69.9(2.75)
174.6(6.875)
174.6(6.875)
87.0(98.6)
83.5(95.1)
1.91
1.91
NA
NA
28331
28346
1/4in
6mm
18,000
0.697(1.54)
0.697(1.54)
69.9(2.75)
69.9(2.75)
269.9(10.625)
269.9(10.625)
87.0(98.6)
87.0(98.6)
2.53
2.53
0.295
0.295
RecommendedAirline
Size-Minimum
10mm3/8in
RecommendedMaximumHoseLength
8meters25feet
AirPressure
MaximumWorkingPressure6.2bar90psig
RecommendedMinimumN/AN/A
Fig.
3M PN
Description
1
06572
ColletNut
2
06575
Collet(1/4in)
2
06573
Collet(1/8in)
2
06574
Collet(3/16in)
2
06545
Collet(3/8in)
2
06576
Collet(3mm)
2
06577
Collet(6mm)
2
06546
Collet(8mm)
3
30371
ColletBody
4
06611
BallBearing(3)
5
30420
ClampNut
6
30421
ExtensionShaft
7
30423
Pilot(.75ID)
8
30392
SpringWasher(2)
9
06629
FrontEndPlate
10
06621
O-Ring
11
30418
FrontEndPlateSpacer
12
30422
Rotor
13
06647
Vane,Setof4
14
06631
CylinderLiner
15
30373
MotorRestrictingWasher
Fig.
3M PN
Description
16
06630
RearEndPlate
17
06612
BallBearing
18
06625
Housing
19
30400
O-Ring
20
06626
TriggerValveStem
21
06616
Pin
22
06614
CompressionSpring
23
06620
O-Ring
24
06627
AirRegulator
25
06613
CompressionSpring
26
06622
SteelBall
27
06599
HousingCover,.5HP
28
06635
PaddleAssembly
29
06617
RollPin
30
06632
MufflerMaterial
31
06615
DiscSpring
32
06628
ExhaustDeflector
33
06618
InletBushing
34
06569
9/16inx3/4inWrench(2)