The order of assembly of the perforator Makita

Assembly of any mechanism should be started after thorough preparation. It is necessary to prepare not only the details, but also tools, place, lubricant.

Tools can not do without pliers, screwdrivers, hammers, brushes for applying lubricant.

And what is the layout of the Makita 2450 and 2470 perforator?

Assembly of the Makita perforator with one's own hands can be performed only if the attached instructions are followed.

The task of the assembly process is to replace the out-of-date parts of the assembly for suitable ones and to ensure the interchangeability and efficiency of the tool.

The order of the assembly of the perforator Makita 2450

Assembly of the shock mechanism
And how to assemble the percussion mechanism Makita?
The impact mechanism is assembled from two components: a shaft with a spur gear and an intermediate shaft with a rolling bearing.

A).The barrel of pos. 21 is put on the straight tooth gear pos. 19 and pressed by the compression spring pos.18.
For fixing, the spring is pressed by a washer 30 pos.17 and fixed with a lock ring 28 pos.16.

B).To assemble the striker, it is necessary to put on ring 9 pos.25 on the striker's shaft, tighten the rubber ring pos.26, press down the metal ring pos.27.

Now go to the opposite side of the trunk pos.21.On the other hand, the inner surface of the barrel should be lubricated with grease and insert the assembled drummer pos24 inside.

Assembling the intermediate shaft assembly

To assemble the intermediate shaft, the roller bearing pos. 41 must be fitted to the shaft pos. 40 with the teeth to the shaft splines, and put the coupling at pos. 39 on the shaft splines.

The helical gear 26 from pos. 42., Flat washer 8 pos.45, bearing 608zz pos.46 and lock ring 8 pos.47 are put on the opposite side of the shaft.
Intermediate shaft assembled.

Assembling the reducer assembly
The gear unit assembly is mounted on the inner casing pos. 49.

By the way, there are cases when the axles jump out of the inner aluminum case. In the body, both axles are pressed.

The assembled intermediate shaft is inserted into the body of pos. 49, the lever of the rolling bearing of which is to fall into the hole of the cylinder hinge.

Thus the lever of the bearing of a rolling poses 41 of an intermediate shaft should get in the hinge of the cylinder pos.32, and the bottom bearing of an intermediate shaft in a nest in the case. This procedure is usually performed by rocking the structure until the parts get completely into the specified places.

Setting of the mode selector lever

The mode switch is designed to move the clutch of pos. 39 to different positions and transferring the translational motion to the shock shaft through the rolling bearing pos. 41 to the cylinder pos.32.

Assembly of the lever of the switch of the perforator modes Makita 2450

On the axis of the inner case it is necessary to put on the lever of the mode switch pos.82, from above the pressing spring pos.88, to crush the flat washer pos. Install the snap ring pos. 86.and fix it.

The locking ring must be carefully secured.
Turn the intermediate shaft, carefully check the correct operation and free stroke of the cylinder in the body. This should be done now, so that it does not appear at the end of the assembly that the assembly is not assembled correctly.

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Shaft Shaft Assembly

First it is necessary to lubricate the inner part of the cylinder pos. 32 and insert the drummer pos. 30 into it.



It remains in the inner case pos.49 to put the greased barrel in the assembly pos. 21 into place, putting it on the lubricated cylinder pos.32.
As a lubricant, it is recommended to use a special lubricant developed for Makita perforators.
Lubricants are available in several types: Makita P-08361 and Makita 183477-5 SDS-PLUS.
Makita Lubricant 183477-5 SDS-PLUS is recommended for the gearbox. A lubricant of the brand Makita 196804-7 is used for shanks of drills.

Lubricants differ in color, but have exactly the same characteristics.
And what kind of lubricants are used in the Makita 2450 and 2470 perforator?

And here we have the assembled mechanical unit.
Video of the general disassembly and assembly of the perforator Makita 2450

Check its performance by rotating the intermediate shaft and controlling the movement of the piston in the impact mechanism. All!

Now we grease all parts of the mechanical unit with the recommended lubricant. Here is an example of the correct application of lubricant to rotating surfaces.

And here is another example of generous lubrication of a mechanical unit.

It is also allowed to apply grease. You can not spoil the porridge with oil!

The lubricated mechanical unit must be closed with a plastic housing pos.14 in black.
After placing the housing on top of the unit, press down the housing until the assembly is fully secured in it.
Backset insert four bolts pos. 10 into the body and tighten.

Now the turn of connection to the mechanical part of the rotor of the electric motor has come.

The helical gear of the rotor is tightly inserted into the body of the mechanical unit and pressed.


It remains to insert four self-threading screws m4 × 60 pos.57.and screw them into the body of the electric unit.

Installing electric brushes

Remove dirt from the grooves of the brush holder and install the brushes in place by snapping them in place.



Now it's time to test the performance of the puncher. Connect the punch plug to the socket, turn the puncher briefly in the "drilling" mode. After making sure the tool is working, turn it off. Set the mode switch to the "kick" position. Do not insert the tool.
Check the operation of the puncher in this position. At the same time, you also checked the operation of the mode switch.

It remains to check the installation of the speed control knob, make sure of the reliability of the contact connections and you can proceed with the installation of the cover.

The cover is secured with three self-drilling Mx4 screws of different lengths.

Connect the punch to the 220 V network and check on all modes.
The Makita perforator 2450 or 2470 is assembled and working properly!