Makita DTD152RTJ User Manual

8 ENGLISH
Proper fastening torque for standard bolt
120
100
80
60
40
20
M14
M12
M10
M8
N•m
2
1
(kgf•cm)
(1224)
(1020)
(816)
(612)
(408)
(204)
0
140
(1428)
123
M16
M16
M14
M12
M10
M8
1.Fasteningtime(second) 2.Fasteningtorque
Proper fastening torque for high tensile bolt
0 123
M12
M10
160
(1632)
140
(1428)
120
(1224)
100
(1020)
80
(816)
60
(612)
40
(408)
20
(204)
M8
M12
M10
M8
N•m
(kgf•cm)
2
1
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.
Replacing carbon brushes
1
1. Limit mark
Check the carbon brushes regularly.
Replace them when they wear down to the limit mark.
Keep the carbon brushes clean and free to slip in the
holders.Allcarbonbrushesshouldbereplacedatthe
same time. Use only identical carbon brushes.
1. Use a screwdriver to remove two screws then
remove the rear cover.

Makita DTD152RTJ Specifications

General

Brand	Makita
Model	DTD152RTJ
Category	Impact Driver
Language	English