Operation - Makita BTW072 Instruction Manual

Relation between presetting number and
action
Presseting
Clockwise rotation
number
00 Auto-stop setting does not work.
01 - 99
After impacting [number of
impacts (pressetting number
x 2 ) x 0.02 ] seconds.
Green color lamp lights on.
Switch off before impacting
[number of impacts (pressetting
number x 2) x 0.02 ] seconds.
Red color lamp lights on.
Then, the lamp goes out.
003612
Indicating lamp
After impacting preset numbers, the indicating lamp
•
lights in green color.
The red color light will light on if the switch trigger is
•
pulled before the presetting number of impacts is
achieved. It indicates that the operation is
incomplete.
ASSEMBLY
CAUTION:
Always be sure that the tool is switched off and the
•
battery cartridge is removed before carrying out
any work on the tool.
Selecting correct socket
Always use the correct size socket for bolts and nuts. An
incorrect size socket will result in inaccurate and
inconsistent fastening torque and/or damage to the bolt
or nut.
Installing or removing socket
1
2
005609
To install the socket, push it onto the anvil of the tool until
it locks into place.
To remove the socket, simply pull it off.
Counterclockwise rotation
Auto-stop setting does not work.
Auto-stop setting does not work.
Indication lamp goes out.
1. Socket
2. Anvil

OPERATION

[*1] Presetting number of impacts is impossible for more
than 200 impacts (4 seconds).
[*2] Fastening time includes when you pull the trigger
completely.
CAUTION:
Hold the tool firmly and place the socket over the
•
bolt or nut. Turn the tool on and fasten for the
proper fastening time and 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 proper fastening torque may differ depending upon
the kind or size of the bolt, the material of the workpiece
to be fastened, etc. The relation between fastening
torque and fastening time is shown in the figures.
High tensile bolt
.
N m
.
(kgf cm)
120
(1224)
100
(1020)
80
(612)
60
(612)
40
(408)
20
(204)
0 1.0 2.0
Fastening time
005227
High tensile bolt
.
N m
.
(kgf cm)
60
(612)
50
(510)
40
(408)
30
(306)
20
M6
(204)
10
(102)
0
1.0 2.0
Fastening time
50 100
(25) (50)
Number impacts
(Preseting number)
005328
7
M12
M10
M8
3.0 4.0 5.0
(S)
M10
(M10)
M8
(M8)
(M6)
3.0 (S)
150 *1
(75) (*2)