Makita TW161DZ [9/56] Maintenance

Makita TW161DZ [9/56] Maintenance
9 ENGLISH
Proper fastening torque for high tensile bolt
2
1
140
(1430)
N•m
(kgf•cm)
210
80
(816)
60
(612)
40
(408)
20
(204)
3
100
(1020)
120
(1224)
M10
M12
M12
M8
M8
M10
1.Fasteningtime(second)2. Fastening torque
NOTE: Hold the tool pointed straight at the bolt or nut.
NOTE:Excessivefasteningtorquemaydamagethe
bolt/nutorimpactsocket.Beforestartingyourjob,
alwaysperformatestoperationtodeterminethe
properfasteningtimeforyourboltornut.
NOTE:Ifthetoolisoperatedcontinuouslyuntilthe
batterycartridgehasdischarged,allowthetooltorest
for15minutesbeforeproceedingwithafreshbattery
cartridge.
Thefasteningtorqueisaffectedbyawidevarietyof
factorsincludingthefollowing.Afterfastening,always
check the torque with a torque wrench.
1.
Whenthebatterycartridgeisdischargedalmostcompletely,
voltage will drop and the fastening torque will be reduced.
2. Impact socket
Failure to use the correct size impact socket
will cause a reduction in the fastening torque.
Awornimpactsocket(wearonthehexendorsquare
end)willcauseareductioninthefasteningtorque.
3. Bolt
Eventhoughthetorquecoefcientandtheclass
of bolt are the same, the proper fastening torque
will differ according to the diameter of bolt.
Even though the diameters of bolts are the same, the
proper fastening torque will differ according to the
torquecoefcient,theclassofboltandtheboltlength.
4. Theuseoftheuniversaljointortheextension
bar somewhat reduces the fastening force of the
impactwrench.Compensatebyfasteningfora
longer period of time.
5.
The manner of holding the tool or the material of
driving position to be fastened will affect the torque.
6. Operating the tool at low speed will cause a reduc-
tion in the fastening torque.
MAINTENANCE
CAUTION: Always be sure that the tool is
switched off and the battery cartridge is removed
before attempting to perform inspection or
maintenance.
NOTICE: Never use gasoline, benzine, thinner,
alcohol or the like. Discoloration, deformation or
cracks may result.
To maintain product SAFETY and RELIABILITY,
repairs,anyothermaintenanceoradjustmentshould
beperformedbyMakitaAuthorizedorFactoryService
Centers,alwaysusingMakitareplacementparts.
OPTIONAL
ACCESSORIES
CAUTION: These accessories or attachments
are recommended for use with your Makita tool
specied in this manual.Theuseofanyother
accessories or attachments might present a risk of
injurytopersons.Onlyuseaccessoryorattachment
for its stated purpose.
Ifyouneedanyassistanceformoredetailsregard-
ingtheseaccessories,askyourlocalMakitaService
Center.
Impact socket
• Hook
Extension bar
• Universaljoint
Socket bit adapter
• Plasticcarryingcase
• Makitagenuinebatteryandcharger
NOTE:Someitemsinthelistmaybeincludedinthe
toolpackageasstandardaccessories.Theymay
differfromcountrytocountry.

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