RICKO

For CAM, Sorry I haven't thanked you for the info about the Bosch sleeves, Life's been a little hectic the past while. So thanks from RICKO

Advertising

allthunbs

Hi Mailee:

"Well it looks like it wasn't just dust in the workings of my Hitachi as it is still persisting in cutting out on me! I can only think that maybe there is a fault in the electronics as I have checked for loose wires but nothing found. I have had to change the Hitachi for my Freud for the time being but it looks like I may have to invest in a new Hitachi for the table."

All power tools are dead simple. They consist of an on/off switch, sometimes a speed control, sometimes a direction control and an armature. Your problem could be traced to a dirty armature. Take out the brushes and take a look at the armature. It is probably black. Take some fine grade steel wool, rotate the armature and press the steel wool against where the brushes rub and clean off the gunk. It should be a bright copper colour when you're done.

If the problem still persists and the brushes do not need replacing, you have a loose wire. You will have to go through every connection, loosen it then retighten. On some of my old Makita stuff all of the connections are made with small screws in plastic connection boxes. Pain in the a__ to track down the problem but virtually indestructible and repairable in the field and seldom if ever requires a part.

I hope this helps.

Further comment to Bobj3 about your Hitachi. I just checked mine. I ran a work table through the shop in the past several days and completed the router operations late yesterday and this morning. I did as you suggested and turned the table-mount router over and ran it for a minute. Nothing came out. I looked through the vents and it's quite clean in there. I checked the fan direction and it is blowing quite hard toward the bit. Are there several series of Hitachi M12V? i.e. product made between '76 and '84 has a small fan and product made after '84 has a big one?