D4C and D3C Rainbow Motor Brush

Carbon Brush Seating Stone

This seating stone is for cleaning carbon buildup on the armature commutator on all D series and E-2 Rainbow vacuum cleaners. Carbon buildup on your commutator can reduce performance and may not allow the motor to run smoothly.

We have reduced the price on this item and will ship a piece meant for 5-6 uses. There is no need to order a full 4 sticks for do-it-yourself repairs.

*If you wish to order a case (4 full sticks), please add a quantity of 8 to your cart.

D3C R2104 Motor Armature

Original factory OEM replacement armature for the model D3C Rainbow.

If you have a D3A, D2A, D2, or model D Rainbow and have had the motor replaced at some point, then you may have the R2104 motor that this armature is standard. The R2104 motor is the only option for all models listed.

Effective serial number 4607000 with a start date of June 5th 1982.

D3C Brush Holder

Original factory OEM brush holder for the R2104 design D3C motor. Always a good idea to replace if you see any blistering or burnt damage.

Effective serial number 4607200 with a start date of May 5th 1982.

D4C First Version Brush Holder

Standard OEM (.5105 inch or just more than 1/2 inch) brush holder for the R2421 carbon brush that fits the model D4C Rainbow.

Effective through serial number 7520714. The R5124 is the brush holder that you need if your serial number is higher than what is listed.

D4C Rainbow Motor Brush, Version 2

This item is sold each. If you need a pair to replace both sides on your motor, then please add a quantity of (2) to your cart.

Tall motor brush (.589 inches wide or between 9/16 and 5/8 inch) for the D4C SE (Special Edition) motor design that became effective serial number 7520715 and fits the R5124 tall brush holder. Cannot be used with the older armature design that uses the shorter motor brushes.

At one point, Rexair manufactured a high-amp motor brush (R6592) but on September 19th 2000 they discontinued due to the grade of carbon no longer being available. If you have already replaced your carbon brushes before and are unsure if you have the standard or hi-amp motor brushes, Rexair recommends you replace these in pairs so not to mix with the R6592.

* SELECT OPTION: This item needs to be "seated" for proper life expectancy. We use a variable transformer (variac) to seat the brushes. If you are unable, we offer this as an optional service.

• Not properly seating in the carbon brushes can cause brush and commutator damage leading to costly maintenance and downtime
• By properly seating in the carbon brushes, it allows you to use rated current almost immediately
• Change all carbon brushes at one time
• Vacuum excess carbon dust to prevent from reaching machine windings and bearings

The M596 Seating Stone is only used to "clean up" the commutator of the armature and not meant to "seat" the brushes. If you are not exactly sure how to "seat" your carbon brushes, the service fee that we charge is well worth it in the long run.

If you do not seat the motor brushes, you can expect about a one year life before they wear out.

D4C and SE (Special Edition) Armature

Original OEM factory armature for the D4C SE (Special Edition) and D4C model. Many times if you see your carbon brushes burnt down on one side but not the other, then most likely your armature is the problem.

This part works with both the R5125 and R2421 carbon brushes.

Effective March 29th 1993, the R2598 armature assembly was replaced by this improved version for use with the R5124 and R5125 carbon holder and brush kit.

*We can turn and possibly save your existing armature! Call our technical support team at 800-640-2033.