Hamilton Beach 767 Type C - getting started.

After taking some initial pictures, testing the function and intensity, and fiddling around, the time came to start breaking down the Type C and get a better idea of how it worked, and what needs work.


Unfortunately the white balance in the camera was way off, and I didn't notice until after I'd been working, so these are a little more red than they should be, but here's the start of the picture parade. Leading off, I took the horn part of the housing off, by unscrewing the nut that holds the operating rod in place, removed the piston, operating rod, and then removing the four screws that hold it to the forward housing. (This would be akin to the top end of the Type A's. From left to right is an exploded view of the internal parts, from what I have removed thus far. It's a crude layout, but a little easier than just individual parts.

Next we have the forward housing, before being washed, just the excess oil was wiped off.

After cleaning it up, it looks a little better. The flecks that look like rust are actually bits of lacquer or enamel that have come off the armature or stator rings. I haven't decided if I am going to get too abrasive or chemical about trying to clean them off. Before I get to that, here's the top of the same part.

Next up is the horn end (for lack of a better term):

I didn't get to disassemble the other half yet, but here's looking in:

The handle and plug ends:

 So the Bard asked, what makes you think it's so much stronger? Well, I don't know for sure about the Type A, since I don't have one properly operational to test against, but I will soon. Regardless, compare the armatures of the Type C (top) to the Type A (bottom).They are the same diameter, even though the bottom one looks a little bigger.

Following that, I polished the aluminum bits of the liberated housing parts with Mother's Mag and Aluminum Polish, just to see what was pitted, dented or just surface oxidation, before getting anything more abrasive involved, like the dremel. It will be used to polish the parts, but at least now I know what I need to focus on. The brass bushings on the motor shafts also were hit with brasso, as was the commutator to clean up the years of carbon buildup.

More to come soon!