9 ENGLISH
Proper fastening torque for standard bolt
2
1
N•m
(kgf•cm)
160
(1632)
140
(1428)
120
(1224)
100
(1020)
80
(816)
60
(612)
40
(408)
20
(204)
0
M14
M12
(M14)
(M16)
(M12)
(M10)
(M8)
M10
M8
2.0 3.04.01.0
1.Fasteningtime(second)2.Fasteningtorque
Proper fastening torque for high tensile bolt
2
1
N•m
(kgf•cm)
160
(1632)
140
(1428)
120
(1224)
100
(1020)
80
(816)
60
(612)
40
(408)
20
(204)
0
M14
M12
(M14)
(M16)
(M12)
(M10)
(M8)
M10
M8
2.0 3.04.01.0
1.Fasteningtime(second)2.Fasteningtorque
Holdthetoolrmlyandplacethepointofthedriverbit
inthescrewhead.Applyforwardpressuretothetoolto
the extent that the bit will not slip off the screw and turn
the tool on to start operation.
NOTICE: If you use a spare battery to continue
the operation, rest the tool at least 15 min.
NOTE: Use the proper bit for the head of the screw/
boltthatyouwishtouse.
NOTE:WhenfasteningM8orsmallerscrew,carefully
adjustpressureontheswitchtriggersothatthescrew
is not damaged.
NOTE: Hold the tool pointed straight at the screw.
NOTE:Iftheimpactforceistoostrongoryoutighten
thescrewforatimelongerthanshowninthegures,
thescreworthepointofthedriverbitmaybeover-
stressed,stripped,damaged,etc.Beforestartingyour
job,alwaysperformatestoperationtodeterminethe
properfasteningtimeforyourscrew.
Thefasteningtorqueisaffectedbyawidevarietyof
factorsincludingthefollowing.Afterfastening,always
checkthetorquewithatorquewrench.
1. Whenthebatterycartridgeisdischargedalmost
completely,voltagewilldropandthefastening
torquewillbereduced.
2. Driver bit or socket bit
Failure to use the correct size driver bit or socket
bitwillcauseareductioninthefasteningtorque.
3. Bolt
• Eventhoughthetorquecoefcientandthe
class of bolt are the same, the proper fasten-
ingtorquewilldifferaccordingtothediame-
ter of bolt.
• Even though the diameters of bolts are the
same,theproperfasteningtorquewilldiffer
accordingtothetorquecoefcient,theclass
of bolt and the bolt length.
4. The manner of holding the tool or the material
of driving position to be fastened will affect the
torque.
5. Operating the tool at low speed will cause a reduc-
tioninthefasteningtorque.
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,
carbonbrushinspectionandreplacement,anyother
maintenanceoradjustmentshouldbeperformedby
MakitaAuthorizedorFactoryServiceCenters,always
using Makita replacement parts.