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Rexair-Rainbow

Rexair-Rainbow Carbon Brush Holder Screw - D-3/D-4

Rexair-Rainbow Carbon Brush Holder Screw - D-3/D-4

$6.99 USD
$6.99 USD
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H309B

100 in stock
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Genuine Parts OEM Quality
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Shipping Information

We offer free standard shipping on eligible orders of $100 or more within the 48 contiguous United States. Eligibility is calculated on the merchandise subtotal after discounts and before tax.

Most in-stock orders using standard shipping are processed within 1-5 business days, and most arrive 2-11 business days after they are placed. Backordered and special-order items may take longer. Expedited UPS Ground is available at checkout for an extra charge, including on orders that qualify for free standard shipping. See our Shipping Policy for details.

Returns & Exchanges

We offer 35-day returns on eligible items: request a Return Authorization (RA#) within 35 days of delivery, and your return must reach us within 21 days after the RA# is issued.

Items must be unused, in new condition, and in original packaging with all accessories. For non-defective returns you pay return shipping; original shipping charges are not refunded, and if your order shipped free our actual outbound shipping cost is deducted from the refund. There is no standard restocking fee. See our Return & Refund Policy for details and exclusions.

Warranty Information

All products sold by Vacuums and More come with the manufacturer's warranty. Warranty terms vary by brand and product.

With 35 years of industry experience, we stand behind every product we sell. Contact us for warranty support.

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Rexair-Rainbow Carbon Brush...

$6.99

Product details

A small part with a specific job: this screw holds the carbon brush holder against the motor on the Rexair Rainbow D3 and D4, and it is stocked as H309B.

Carbon brushes ride on the commutator under spring pressure, and the holder has to stay exactly where the factory put it for that contact to stay even. A screw that has backed off or stripped lets the holder move a fraction, which is enough to cause arcing at the commutator, a motor that runs rough or surges, and brushes that wear at an angle. Anyone who has had a Rainbow motor apart for brushes is better off fitting new screws than reusing ones that have been in and out.

Unplug the machine before you touch the motor. Compare the thread and length against the original, and order a spare while you are at it; these are easy to lose on a bench.