Speed change
► Fig.4: 1. Speed change lever
For 6904VH only
To change the speed, first switch off the tool and then
slide the speed change lever fully to the "H" side (lower
side) for high speed or to the "L" side (upper side) for
low speed. Before starting operation, ensure that the
speed change lever is slid fully to the desired side.
Select the speed optimum for your job.
CAUTION:
•
Do not use the speed change lever while the
tool is running. The tool may be damaged.
ASSEMBLY
CAUTION:
•
Always be sure that the tool is switched off and
unplugged 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
► Fig.5: 1. Socket 2. Anvil
1.
For socket without O-ring and pin
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.
2.
For socket with O-ring and pin
► Fig.6: 1. Socket 2. O-ring 3. Pin
Move the O-ring out of the groove in the socket
and remove the pin from the socket. Fit the socket
onto the anvil of the tool so that the hole in the
socket is aligned with the hole in the anvil. Insert
the pin through the hole in the socket and anvil.
Then return the O-ring to the original position in
the socket groove to retain the pin. To remove
the socket, follow the installation procedures in
reverse.
OPERATION
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.
Standard bolt
.
N m
.
(ft lbs)
M16X50 at high speed
140
(101)
120
(87)
100
(72)
80
(58)
60
(43)
40
(29)
20
M10X50 at low speed
(14)
M10X50 at high speed
0
1
High tensile bolt
.
N m
260
(188)
240
(174)
220
M16X50 at high speed
(159)
200
(145)
180
(130)
160
(116)
140
(101)
120
(87)
100
(72)
80
(58)
60
(43)
40
(29)
20
M10X50 at high speed
(14)
0
1
5 ENGLISH
For 6904VH
M16X50 at low speed
M12X50 at high speed
M16X50 at low speed
2
3
Fastening time
For 6904VH
M12X50 at high speed
M16X50 at low speed
M12X50 at low speed
M10X50 at low speed
2
3
4
5
6
Fastening time
M16
M12
M10
(S)
M16
M12
M10
(S)