Today the Japanese company Makita is one of the most popular suppliers of the tool in the Russian construction market. Various models of power drills of Makita enjoy deserved love of consumers. Despite reliability of these tools, over time their parts wear out. The wear of cams of the boss of drill leads to what to record in it the drill or bit becomes impossible. In this case there is need for replacement of the boss.
It is required to you
- - screw-driver;
- - hammer;
- - chuck wrench;
- - punch
Instruction
1. Define type of the boss of your drill MakitaBce of drill of Makita it is possible to separate conditionally into two views - models with fast-tightening and key cartridge. Both types of cartridges belong to cam look. The boss represents hollow cylinder, with metal cams and regulating ring. Cams of the boss come nearer or removed, depending on tool rotating direction. One basis of cylinder serves for fixing of drills and bits. Another - is supplied with screw port or represents conical surface. Both the thread, and cone serve for fastening of the boss on drill spindle. Bits and drills can be fixed in the boss both by means of key, and without it.
2. The key cartridge is made of metal and it is considered more reliable, classical option of fastening. However replacement of drill of such boss takes away a lot of time and demands availability of special key.
3. Fast-tightening cartridges are made both of metal, and of plastic. As plastic is more fragile material, plastic cartridges are established, as a rule, on the models having small capacity. Hammer or powerful 2-speed drills are equipped, usually, with metal cartridges.
4. Fast-tightening cartridges are two-clutch and one-clutch. Models of Makita with automatic locking of shaft are equipped with one-clutch cartridges which give opportunity to change nozzles one hand. When changing nozzles in the two-clutch boss it is necessary to use both hands - one hand clamps the first coupling, another - is turned off the second.
5. For removal of the boss on Makita it is necessary to unclench its cams and to look whether there is rod there. In the presence of rod it is necessary to consider that it has left-hand thread and, as a result, it is necessary to turn off it clockwise. Turn off the screw by means of the screw-driver. If the bolt is located too deeply, it is recommended to knock slightly on its head with the hammer, using the punch.
6. For prevention of rotation of the boss it is necessary to use special chuck wrench or to clamp it in vice.
7. Having turned out the screw, turn off the old boss. In the presence of cuts under wrench on spindle, record it. In the absence of cuts it is recommended to uncover the drill body. Record spindle from within.
8. The algorithm of actions for removal of the boss on drills of Makita can differ depending on model of drill and type of the boss.