Eureka Commercial Cord Spring - S-670, 10-Pack

Part 60945 is a coil spring sold ten to a pack. It fits the cord entry on Sanitaire's S-670 commercial upright, and the same spring is listed for the Eureka and Sanitaire C4571A and SC889A. The coil wraps around the cord as a guide so the jacket bends in a wide curve instead of folding sharply against the plastic edge of the opening.

A commercial floor puts real mileage on that spring. The cord gets pulled, coiled onto its hooks, and dragged behind the machine dozens of times before a shift ends, and the coil is what takes that repeated flexing instead of the cord jacket itself. When the coil finally goes flat or breaks free, the jacket starts folding hard at the exact spot the spring used to protect, and that sharp repeated fold is where the copper strands inside eventually crack. The result is a machine that cuts power only when someone touches or moves the cord near the base, a symptom easy to blame on the outlet instead of the worn spring.

Ten to a pack matches how the part actually gets used: a shop running several commercial uprights burns through springs as routine maintenance rather than a rare repair. Disconnect the machine before working at the cord entry, and seat the new spring so it covers the full length of the opening rather than sitting half on and half off, since a spring left only partly seated leaves the uncovered section free to fold and fatigue in exactly the spot it was meant to guard.

• Part: 60945, sold 10 per pack
• Fits: Sanitaire S-670; Eureka/Sanitaire C4571A, SC889A
• Function: cord entry strain guide
• Replace when: the coil is flattened, cracked, or missing