Operation - Makita 6991D Instruction Manual

1
2
1. Socket
2. Anvil
1. Screw
2. Set plate

OPERATION

Standard bolt
N.m
(ft.lbs)
100
M14 (9/16")
(72)
80
(58)
60
M12 (1/2")
(43)
40
(29)
M10 (3/8")
20
(14)
0 1.0 2.0 3.0
Fastening time
High tensile bolt
N.m
(ft.lbs)
120
(87)
100
(72)
M10 (3/8")
80
(58)
60
(43)
M8 (5/16")
40
(29)
20
(14)
0 1.0 2.0 3.0 4.0
Fastening time
10
Installing or removing socket
002341
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.
Installing set plate (optional accessory)
002344
Always install the set plate when using battery cartridges
1
9100, 9102, 9101A. Install the set plate on the tool with the
screw provided.
2
The proper fastening torque may differ depending upon the
002359
kind or size of the bolt, the material of the workpiece to be
fastened, etc. The relation between fastening torque and fas-
tening time is shown in the figures.
M14 (9/16")
Hold the tool firmly and place the socket over the bolt or nut.
M12 (1/2")
M10 (3/8") Turn the tool on and fasten for the proper fastening time.
(S)
NOTE:
• When fastening screw M8 (5/16") or smaller, carefully
002360
adjust pressure on the switch trigger so that the screw is
not damaged.
M12 (1/2")
M12 (1/2")
• Hold the tool pointed straight at the bolt or nut.
M10 (3/8")
• Excessive fastening torque may damage the bolt/nut or
M8 (5/16")
socket. Before starting your job, always perform a test
operation to determine the proper fastening time for your
5.0 (S)
bolt or nut. Especially for the bolt smaller than M8 (5/
16"), perform the above test operation to prevent the
trouble on socket or bolt, etc.