Makita DTD171 User Manual

14 ENGLISH
Proper fastening torque for standard bolt
N•m
(kgf•cm)
M14
M12
M10
M8
M16
M14
M12
M10
M8
M16
140
(1428)
(1224)
(1020)
(816)
(612)
(408)
(204)
120
100
80
60
40
20
01
2
1
2
1. Fastening time (second) 2.Fasteningtorque
Proper fastening torque for high tensile bolt
2
1
M14
M12
M14
M12
M10
M8
M10
M8
200
180
160
140
120
100
80
60
40
20
0123
(2040)
(1836)
(1632)
(1428)
(1224)
(1020)
(816)
(612)
(408)
(204)
N•m
(kgf•cm)
1. Fastening time (second) 2.Fasteningtorque
Holdthetoolrmlyandplacethepointofthedriverbit
inthescrewhead.Applyforwardpressuretothetoolto
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/
boltthatyouwishtouse.
NOTE: When fastening M8 or smaller screw, choose
aproperimpactforceandcarefullyadjustpressureon
the switch trigger so that the screw is not damaged.
NOTE: Hold the tool pointed straight at the screw.
NOTE:Iftheimpactforceistoostrongoryoutighten
thescrewforatimelongerthanshowninthegures,
thescreworthepointofthedriverbitmaybeover-
stressed,stripped,damaged,etc.Beforestartingyour
job,alwaysperformatestoperationtodeterminethe
properfasteningtimeforyourscrew.
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. Driver bit or socket bit
Failure to use the correct size driver bit or socket
bit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 fasten-
ingtorquewilldifferaccordingtothediame-
ter 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 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-
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.

Makita DTD171 Specifications

General

Brand	Makita
Model	DTD171
Category	Impact Driver
Language	English