Operators Manual

6
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
1
2
002335
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
1
2
3
005300
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.
N m
(ft lbs)
140
(101)
120
(87)
100
(72)
80
(58)
60
(43)
40
(29)
20
(14)
01 2
3
(S)
M16X50 at high speed
M16X50 at low speed
M12X50 at high speed
M16X50 at low speed
M10X50 at low speed
M10X50 at high speed
Fastening time
Fastening torque
Standard bolt
M16
M12
M10
Proper fastening torque
For 6904VH
.
.
005301
N m
260
(188)
240
(174)
220
(159)
200
(145)
180
(130)
160
(116)
140
(101)
120
(87)
100
(72)
80
(58)
60
(43)
40
(29)
20
(14)
012
3
(S)
M16X50 at high speed
M16X50 at low speed
M12X50 at high speed
M12X50 at low speed
M10X50 at low speed
M10X50 at high speed
Fastening time
Fastening torque
45 6
High tensile bolt
M16
M12
M10
Proper fastening torque
For 6904VH
.
005302
Hold the tool firmly and place the socket over the bolt or
nut. Turn the tool on and fasten for the proper fastening
time.
NOTE:
• Hold the tool pointed straight at the bolt or nut.
• Excessive fastening torque may damage the
bolt/nut or socket. Before starting your job, always
perform a test operation to determine the proper
fastening time for your bolt or nut.
1. Socket
2. O-ring
3. Pin
1. Socket
2. Anvil