Carbon Brush 939539-00
Part Number: 939539-00
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and your part ships today!
and your part ships today!
Product Information
Description:
| Genuine Dewalt replacement part This brush is sold individually, 2 are needed for the tools shown below It is always best to replace both brushes, even if only one is worn. Worn brushes frequently are the cause behind a motor running poorly. Carbon brushes are one of the most commonly replaced power tool parts. This is because carbon brushes are wear items, meaning that through friction and use they will gradually wear away until they need replacing. Worn brushes are a common causes of intermittent motor function, reduced electric braking and reduced motor power. A worn-out brush will often be worn down near to the wire lead and can be cracked, pitted, or burned. When replacing carbon brushes, be sure to inspect your armature for burns, cracks, or other damage which can indicate larger motor problems. |
Frequently Purchased With
Compatibility
the 30 compatible machines
This part is compatible with the following machines:
DeWALT
DW406 Type 1 Angle Grinder
DW406 Type 2 Angle Grinder
DW818 Type 1 Angle Grinder
DW818 Type 3 Angle Grinder
DW818 Type 4 Angle Grinder
DW818 Type 5 Angle Grinder
DW821 Type 1 Angle Grinder
DW821 Type 3 Angle Grinder
DW406 Type 2 Angle Grinder
DW818 Type 1 Angle Grinder
DW818 Type 3 Angle Grinder
DW818 Type 4 Angle Grinder
DW818 Type 5 Angle Grinder
DW821 Type 1 Angle Grinder
DW821 Type 3 Angle Grinder
DW821 Type 4 Angle Grinder
DW821 Type 5 Angle Grinder
D28090-B3 (Type 1) 4-1/2 Small Angle Grinder Power Tool
D28090-BR (Type 1) 4-1/2 Small Angle Grinder Power Tool
D28090AV-B3 (Type 1) 4-1/2 Small Angle Grinder Power Tool
DW818-BR (Type 5) Small Angle Grinder Power Tool
DWE4010-B3 (Type 1) Palm Grip Sander Power Tool
DWE4010-BR (Type 1) Palm Grip Sander Power Tool
DW821 Type 5 Angle Grinder
D28090-B3 (Type 1) 4-1/2 Small Angle Grinder Power Tool
D28090-BR (Type 1) 4-1/2 Small Angle Grinder Power Tool
D28090AV-B3 (Type 1) 4-1/2 Small Angle Grinder Power Tool
DW818-BR (Type 5) Small Angle Grinder Power Tool
DWE4010-B3 (Type 1) Palm Grip Sander Power Tool
DWE4010-BR (Type 1) Palm Grip Sander Power Tool
Black and Decker
Products Compatibility
This item works with the following types of products:
- • Grinder
Repair Guides
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Watch the Repair Video for
Carbon Brush
Questions & Answers for Carbon Brush
No questions have been asked yet
Repair Instructions: Submitted by Customers Like You
Tool Type:
Grinder
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, Pliers
Would not run.
1. removed one screw and the back cover.
2. remove switch, disconnect wires with pliers.
3. connect wires to new switch, replace in holder.
4. lift spring holder off brush, remove, disconnect wire.
5. attach wire of new brush, insert into holder, replace spring.
6. repeat #4&5 with second brush.
7. replace back cover.
2. remove switch, disconnect wires with pliers.
3. connect wires to new switch, replace in holder.
4. lift spring holder off brush, remove, disconnect wire.
5. attach wire of new brush, insert into holder, replace spring.
6. repeat #4&5 with second brush.
7. replace back cover.
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Tool Type:
Grinder
Parts Used:
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
Brushes worn out
Remove the electrical cord end cover(four screws) and replaced the brushes.
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Tool Type:
Grinder
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
Brush holders was bad and, brushes was worn out.
Check the manual on how to take apart, one screw held the housing . One screw each held the brush holder. Removed the wire from the holder, then reinstall the holder, then installed the brushes. Screwed the housing back on, then back to grinding.
Work safe AND unplug the tool..
Work safe AND unplug the tool..
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Tool Type:
Grinder
Parts Used:
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver
Would not run
Remove the end cap of the grinder
Disconnect the brushes and holders
Remove the old brush holders
Install the new brush holders
Pull back brush holder spring and insert the new brushes and connect them
Place inner and out flanges on the spindle
Install the end cap
Disconnect the brushes and holders
Remove the old brush holders
Install the new brush holders
Pull back brush holder spring and insert the new brushes and connect them
Place inner and out flanges on the spindle
Install the end cap
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Thanks for voting and helping fellow customers!
Tool Type:
Grinder
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, Pliers
Worn out brushes, weak springs
Single screw on grinder handle, loosen it and the cover pulls apart, very simple repair
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Reviews
3 Reviews
Average Rating (out of 5):
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1
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The brushes worked but the motor winding was bad
The brushes worked but the motor winding was bad and I tossed it
Guest -
October 5, 2020
Verified Purchase
Very easy to replace
First time I have replaced brushes in a grinder. Extremely easy
Guest -
August 28, 2019
Verified Purchase
the one sent was what was needed.
I was disappointed in that only one brush was sent. I was sure it was advertised as 2 brushes. Guess I'll know better next time.
Guest -
April 24, 2019
Verified Purchase
eReplacementParts Team
Hello, Thank you for the review. Reading the description it states, This brush is sold individually, 2 are needed. Please let us know if we can help you with another order for the second brush. Good luck with the repair!
Verified Purchase
eReplacementParts Team
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Product Information
Repair Guides
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Watch the Repair Video for
Carbon Brush
