Saturday, July 24, 2010

Hammond Glider Teardown Finished

After the arbor I focused on getting the motor off. Conceptually it was easy, since the motor was bolted to threaded holes in the motor plate and all the bolts were easily accessible.

Practically though, the motor is extremely heavy, covered in a thick coating of lead dust, and mounted to the underside of the motor plate. Thus it would be all too easy to have the motor come crashing to the floor while removing it, sending up a cloud of toxic dust while also damaging it.

So I first bagged the motor up in a couple plastic bags in an attempt to contain any dust.

Then I clamped the motor's "feet" to the motor plate so it wouldn't fall as I took the bolts out. Finally I made a simple ramp from the saw to my van out of a couple pieces of plywood. I dropped the motor onto the plywood and pushed it into the van.

Once the motor was off and in the van, I turned my attention to the main table casting. It is held on by three large machine bolts. These provided only token resistance and were easily removed with a humongous Allen key.

The table was shimmed at the factory under these three bolts, so it was critical to not dislodge or lose track of any shims as the table was removed. Further, the shims needed to be marked so that they could be reassembled in the same position.

 I slid the table onto the same plywood ramp I used for the motor, then pushed it into the van.

Lastly was the base itself. Although I could not lift it, I was able to tilt and slide it into the van on my own.

I then disassembled the smaller assemblies which I had not done at the start, mainly the arbor and the clamp. With everything apart, it's off to the media blasting shop next!

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