Maintenance - Makita TW0200 Instruction Manual

High tensile bolt
200
M12X80
180
160
140
M10X80
120
100
80
60
40
20
0
1 2 3
Fastening time (S)

MAINTENANCE

1. Limit mark
2
1. Brush holder cap
2. Screwdriver
The fastening torque is affected by a wide variety of factors including the fol-
004239
lowing. After fastening, always check the torque with a torque wrench.
1. Voltage
•
2. Socket
•
•
M12
3. Bolt
M10
•
5
4
•
4. The use of the universal joint or the extension bar somewhat reduces the
fastening force of the impact wrench. Compensate by fastening for a
longer period of time.
5. The manner of holding the tool or the material of driving position to be
fastened will affect the torque.
CAUTION:
• Always be sure that the tool is switched off and unplugged before
attempting to perform inspection or maintenance.
Replacing carbon brushes
001145
Remove and check the carbon brushes regularly. Replace when they wear
down to the limit mark. Keep the carbon brushes clean and free to slip in the
holders. Both carbon brushes should be replaced at the same time. Use only
identical carbon brushes.
1
Use a screwdriver to remove the brush holder caps. Take out the worn carbon
004003
brushes, insert the new ones and secure the brush holder caps.
1
To maintain product SAFETY and RELIABILITY, repairs, any other mainte-
nance or adjustment should be performed by Makita Authorized Service Cent-
ers, always using Makita replacement parts.
Voltage drop will cause a reduction in the fastening torque.
Failure to use the correct size socket will cause a reduction in the
fastening torque.
A worn socket (wear on the hex end or square end) will cause a
reduction in the fastening torque.
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.
7