Clean and Rewire a Westinghouse Sewing Machine Motor - Sunday Morning Quickies #33, March 13th, 2022

There are some sewing machines whose motors don't have a modern, generic replacement motor available. If we're going to "Keep 'em Flying" so to say, we need to develop the skills to overhaul the original motors. Here, we'll not only take on the cleaning and rewiring of a Westinghouse, we'll also remove excessive play in the motor shaft.

00:00 Intro and titles
01:24 Evaluation and disassembly
2:50 Removal of the lubrication system (grease pots and wicks)
03:15 Removal of the brushes - first snag
03:48 Removal of the rear mounting spring, end cap, case screws, and maker name plate
05:03 Separate the body casting and remove the armature and shaft
05:24 Removal of the brushes, field coils, and brush holder & tubes
07:00 Prep the body for a bath & blow dry
08:20 Let the rewire begin - Prep the wire and field coils
11:15 Let the soldering begin
12:59 Heat the work, not the solder
14:19 Lather, Rinse, Repeat
15:37 Shrink tubing for both insulation and binding
18:01 Clean, level, and polish the commutator bars
20:00 Reassembly time - Let's improve on the design with a protective wire grommet
22:40 Feed the wires through
24:04 Reinstall the brush holders & tubes
27:17 Reinstall the rotating assembly, brushes, and adjust the position of the brush tubes
29:43 Button up the case & test run
31:15 Excessive end play rears its ugly head - let's fix it
33:55 New grease wicks and appropriate lubrication
37:15 Replace the final detail elements
40:10 The answer to the obvious question
41:08 Final thoughts

Here's the grommet that worked for the wire I used - SBR Rubber Grommet for 7/16" Hole Diameter and 1/8" Material Thickness
https://www.mcmaster.com/9600K45/

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