Makita BTD044 Mode D'emploi page 9

.
N m
Standard bolt BTD104
.
(ft lbs)
60
(44)
40
(29)
M8
20
(14)
M6 (1/4")
0
0 0.5
Fastening time
29
(13)
Number of impacts
(Presetting number)
013989
.
N m High tensile bolt BTD104
.
(ft lbs)
120
(87)
100
(72)
80
(58)
60
(43)
40
(29)
20
(14)
0
0
Fastening time
013988
NOTE:
Use the proper bit for the head of the screw/bolt
•
that you wish to use.
Hold the tool pointed straight at the screw.
•
If you tighten the screw for a time longer than
•
shown in the figures, the screw or the point of the
driver bit may be overstressed, stripped, damaged,
etc. Before starting your job, always perform a test
operation to determine the proper fastening time
for your screw.
M12(1/2")
M10
(3/8")
M12(1/2")
(5/16")
(M10)
(M8)
(M6)
1 1.5
Seconds
58
*1
(25)
*2
M10(3/8")
(M10)
M8(5/16")
(M8)(5/16")
1 2
Seconds
58 116 *1
(25) (50)
*2
Number of impacts
(Presetting number)
If the tool is operated continuously until the battery
•
cartridge has discharged, allow the tool to rest for
15 minutes before proceeding with a fresh battery.
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
(3/8")
Failure to use the correct size driver bit or socket
bit will cause a reduction in the fastening torque.
3. Bolt
(5/16")
(1/4") •
•
4. The use of the universal joint or the socket
adapter somewhat reduces the fastening force of
the tool. Compensate by fastening for a longer
period of time.
5. Type of materials to be fastened, the manner of
holding the tool and the tool speed will affect the
torque.
6. Operating the tool at low speed will cause a
reduction in the fastening torque.
MAINTENANCE
(3/8")
CAUTION:
Always be sure that the tool is switched off and the
•
battery cartridge is removed before attempting to
perform inspection or maintenance.
Never use gasoline, benzine, thinner, alcohol or the
•
like. Discoloration, deformation or cracks may result.
Replacing carbon brushes
006258
Replace when they wear down to the limit mark. Keep
the carbon brushes clean and free to slip in the holders.
Both carbon brushes should be replaced at the same
time. Use only identical carbon brushes.
9
Even though the torque coefficient and the
class of bolt are the same, the proper
fastening torque will differ according to the
diameter of bolt.
Even though the diameters of bolts are the
same, the proper fastening torque will differ
according to the torque coefficient, the class
of bolt and the bolt length.
1
1. Limit mark