Uploaded November 2019 | Updated September 2026, 3 days ago

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One place to buy the Diamond D Brush Seater Stone: zoro.com/diamond-d-brush-seater-4-34-l-x-14-w-x-14-h-brsrx13ms/i/G4831799
00:00 Intro
REMOVE MOTOR: 2:40
DISASSEMBLE MOTOR: 15:30
CLEAN MOTOR: 31:30
ASSEMBLE MOTOR: 48:00
TEST MOTOR: 1:18:08
POLISH COMMUTATOR: 1:20:20
REINSTALL MOTOR: 1:32:25
KRUD KUTTER PAGE: rustoleum.com/product-catalog/consumer-brands/krud-kutter/cleaners-and-stain-removers/original-krud-kutter
BRUSH SEATER VIDEO: youtu.be/rpTy_Bz3prA
A Catalog of DIAMOND D BRUSH SEATERS:
martindaleco.com/pdfs/Abrasives/Diamond_D_Catalog.pdf
How to tutorial for removing and installing the PA Style motor of a Singer Model 403A. Covers Singer Models 301, 301A, 401, 401A, 403A, 404, 500, 500A, and Touch & Sew models from the 600's thru 700's. This motor was very slow and smoking a little bit. Oil on the commutator. How to clean the motor with Krud Kutter Cleaner & Degreaser. Cleaning and polishing the commutator and using a "brush seater" to improve motor brush contact and motor speed. You can do this!
MUSIC: Jupiters Smile by the 126ers