Part Location Diagram of CB311 Makita Carbon Brush Set
See part 23 in the diagram
( Grid squares measure 1x1 inch )

Carbon Brush Set CB311

Manufactured by:
Makita
ERP Number:
ERP10156651
Part Number:
CB311
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!

Easy 

Less than 15 mins 

(4 rated repairs) ?

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Product Description

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Genuine Makita replacement part Set of 2 Carbon Brushes with wire lead and brush spring attached. • Worn brushes are often the cause of a poorly running motor • Replacing brushes can fix an intermittent motor • New brushes can restore a motor's electric braking Carbon motor brushes are one of the most commonly replaced power tool components. • Because carbon brushes are wear items, meaning that through friction and use they will gradually wear away, they will eventually require replacement. • Worn brushes are common causes of intermittent motor function, reduced electric braking, and reduced motor power. • A worn out brush will often be worn down near the wire lead and may be cracked, pitted, or burned. • When replacing carbon brushes, be sure to also inspect your armature for burns, cracks, or other damage which indicates a larger motor problem.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Makita
This part works with the following products:
  • Angle Grinder
  • Grinder
Part# CB311 replaces these:
191979-7, 194998-2, CB-311,

Customer Part Reviews

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4.8
Average Rating (out of 5):
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(5 Reviews)
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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

Less than 15 mins 

(4 rated repairs) ?
  • 1
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Brushes burned out

Sami from NORTH HOLLYWOOD, California

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
CB311
Removed the old and put the new in.
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Wore out brushes

Raymon from Bozeman, Montana

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
CB311
Unscrewed brush cover with Flat blade screwdriver, remove old woreout. Brushes replaced with new brushes Reinstalled brush covers. Now, it works great.
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both brushes and switch needed replacing.

JAKE from SANTA FE, New Mexico

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
Less than 15 mins
Tools:
Pliers, Screw drivers
Parts Used:
CB311
removed brushes, they had run their course and shorted out the switch. replacrd both and grinder works like new.
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Original cord guard and power cord where in bad shape and worn out

Rusty from Duncan, Oklahoma

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Pliers, Screw drivers
Parts Used:
CB311, 682505-8, 664265-4
Simply took screws out of the grinder handle so that I could access the cord guard and power cord. Removed the cord clamp and switch.Took the old cord leads of the switch Installed the new cord guard on the cord, then the cord onto the switch. Replaced the cord clamp. Then screwed the handle back together. To replace the brushes, I used a screwdriver to remove the brush caps, then I removed the old worn brushes , and installed the new brushes, and replaced the brush caps.
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  • 1

Model Cross Reference

This part works with the following models:
ERP Number: ERP10156651
Manufacturer Part Number: CB311
Brand Model Number Description
Makita 9015A Angle Grinder - Angle Grinder
Makita GA5020 Angle Grinder - 10.5A 5" SJS Angle Grinder
Makita GA5020Y Angle Grinder - Super Joint Angle Grinder
Makita GA6020 Angle Grinder - 6" Angle Grinder
Makita GA6020YX1 Grinder - Grinder