Makita DTD172RTJ User Manual

16 ENGLISH
OPERATION
Theproperfasteningtorquemaydi󰀨erdependingupon
the kind or size of the screw/bolt, the material of the
workpiece to be fastened, etc. The relation between fas-
teningtorqueandfasteningtimeisshowninthegures.
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o󰀨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a󰀨ected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coe󰀩cientandthe
class of bolt are the same, the proper fasten-
ingtorquewilldi󰀨eraccordingtothediame-
ter of bolt.
• Even though the diameters of bolts are the
same,theproperfasteningtorquewilldi󰀨er
accordingtothetorquecoe󰀩cient,theclass
of bolt and the bolt length.

Makita DTD172RTJ Specifications

General

Brand	Makita
Model	DTD172RTJ
Category	Impact Driver
Language	English