Maintenance - Makita TD021D Instruction Manual

Standard bolt
N m
(ft lbs)
20
(15)
M8(5/16")
15
(11)
10
M6(1/4")
(7)
5
(4)
0 1.0 2.0
Fastening time S)
007519
High tensile bolt
N m
(ft lbs)
20
(15)
15
(11)
10
(7)
5
(4)
0 1.0 2.0
Fastening time S)
007520
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.
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.
(M8)
(5/16")
(M6)
(1/4")
3.0
(
M6(1/4")
(M6)
(1/4")
3.0
(
2. Driver bit or socket bit
Failure to use the correct size driver bit or socket
bit will cause a reduction in the fastening torque.
3. Bolt
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.
4. The manner of holding the tool or the material of
driving position to be fastened will affect the torque.
Using the tool as a hand screwdriver
010331
Switch off the tool.
Move the lock lever to the locked position
Turn the tool.
NOTE:
Use the tool with a fastening torque less than 12.5
•
Nm (9ft•lbs).
This use is
•
screwdriving.
Do not use the tool for work requiring excessive
•
force, such as tightening bolt M10 or bolts greater
than M10 or removing rusted screws.

MAINTENANCE

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.
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be
performed by Makita Authorized or Factory Service
Centers, always using Makita replacement parts.
7
convenient for checking the