Operators Manual

10 ENGLISH
OPERATION
Theproperfasteningtorquemaydiffer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.
Standard bolt
N•m
(kgf•cm)
2
1
2
13
0
100
(1020)
120
(1224)
80
(816)
60
(612)
40
(408)
20
(204)
M12
M14
M10
M12
M14
M10
M8
M8
3
1.Fasteningtime(second)2.Fasteningtorque
3.Properfasteningtorquecorrespondingtoeachbolt
diameter
High tensile bolt
32
1
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
3.Properfasteningtorquecorrespondingtoeachbolt
diameter
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.