Headstock Reassembly Speed Control(A)

[JPG]

This thread illustrates a method of reassembling the Speed Control in to the headstock. This thread is the first of two.

Before we begin I need to call your attention to the shape of the gear on the face of the speed control.

hsasmsc0.jpg (320.49 KiB) Viewed 5278 times

Notice that one side is beveled(top side in the pix). This beveled side should face out when installed on its 'shaft'. ALL the following pix show it 'upside down'. It was upside down(previous owner may have improperly installed it???) and I did NOT notice until putting the knob on which was after all the pix were taken. This may be in error. I have 'discovered other M5/V with the beveled side down. At this point I believe it will work either way. Bevel on top does minimize potential interference with control handle.<<<<<< See post 233215 below

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Notice that the screws are 'self threading'. If you reuse them, take care to start them into the existing 'threads'. Do NOT cause them to cut new threads. That would cause them to strip out(eventually). Notice the wide spring which is positioned between two projections. The outer ring is positioned in place before putting the speed control in position and screws inserted, but subsequent pix do not show the outer ring so as to show other details. The orientation of the outer ring may be random at this time(It will be set later).

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Adjust the speed control all the way to the high speed stop. This is determined by the quadrant arm stopping against the stop screw. Notice the small spring located near the top(lower left in pix). Do not forget to install it before putting outer ring in place. The end with a sharp bend goes into a hole on the right and the straighter end slides in a groove on the left.


This thread is intended to be ONE of several showing reassembly of a disassembled headstock. A single thread titled Headstock Reassembly https://forum.shopsmith.com/viewtopic.php?t=3765 links to all of these threads. These threads will be edited as necessary to correct any errors or confusion.

This thread is 1 of 2 showing speed control reassembly.

[cobbler@comcast.net]

didn' see difference until i viewed picture. thanks

[jjj240]

On another occasion on the web, the beveled side of the gear shall be down, otherwise the gear on speed handle (cover?) will be worn out prematurely, so the 2nd and 3rd picture above show correctly mounted gear (I incline to agree).

How would you think? any other expert please?

Ref. is https://www.youtube.com/watch?v=w4oaJCKKT3E

[ATTACH]4982[/ATTACH]

Notice that one side is beveled(top side in the pix). This beveled side should face out when installed on its 'shaft'. ALL the following pix show it 'upside down'. It was upside down(previous owner may have improperly installed it???) and I did NOT notice until putting the knob on which was after all the pix were taken. This may be in error. I have 'discovered other M5/V with the beveled side down. At this point I believe it will work either way. Bevel on top does minimize potential
interference with control handle.

[ATTACH]4983[/ATTACH]

[JPG]

On another occasion on the web, the beveled side of the gear shall be down, otherwise the gear on speed handle (cover?) will be worn out prematurely, so the 2nd and 3rd picture above show correctly mounted gear (I incline to agree).

How would you think? any other expert please?

Ref. is https://www.youtube.com/watch?v=w4oaJCKKT3E

[ATTACH]4982[/ATTACH]

Notice that one side is beveled(top side in the pix). This beveled side should face out when installed on its 'shaft'. ALL the following pix show it 'upside down'. It was upside down(previous owner may have improperly installed it???) and I did NOT notice until putting the knob on which was after all the pix were taken. This may be in error. I have 'discovered other M5/V with the beveled side down. At this point I believe it will work either way. Bevel on top does minimize potential
interference with control handle.

[ATTACH]4983[/ATTACH]

The intent of the blue text was to 'correct' previous statements. At the time I added it, I was not convinced. I am now.

There is no doubt in my mind that Jacob Anderson has seen far more examples and likely understands the reason for the bevel(I apparently do not). So I agree, bevel DOWN.


The one thing that he scares me with is that hammer. I believe in pressing, not banging.