Part Location Diagram of CB325 Makita Carbon Brush Set
See part 41 in the diagram
Replacing your Makita Hammer Carbon Brush Set
( Grid squares measure 1x1 inch )

Carbon Brush Set CB325

Manufactured by:
Makita
ERP Number:
ERP10156652
Part Number:
CB325
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!

Easy 

15 - 30 mins 

(25 rated repairs) ?

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Product Description

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Genuine Makita replacement part. Set of 2 Carbon Brushes with wire lead 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:
  • Hammer
  • Grinder
  • Angle Grinder
Part# CB325 replaces these:
194074-2, CB-325,

Videos For installing this part.

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Replacing your Carbon Brush Set

Customer Part 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 

15 - 30 mins 

(25 rated repairs) ?
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Worn out brushes

Brian from Mira Loma, California

14 of 14 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers
Parts Used:
CB325
Opened rear casing of unit to expose brush holders on each side. Lifted spring that holds each brush and pulled out worn brush and replaced with new brush. Repeat for other side.
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Brushes wore out, unit smoking heavily

John from MONAHANS, Texas

6 of 6 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers
Parts Used:
CB325, 515616-3
1. Noted position of all components as per the schematic provided on website.
2. Disassemble all screws to remove cover and output gear assembly.
3. With needle nose pliers carefully remove carbon brush set slip on connector. Place pressure spring to one side allowing removal of brush.
4. Pull armature out. If rubber retaining gasket remains in unit and doesn\'t come out with the armature and attached to the bearing, take a gasket hook removal tool and remove the grommet being careful not to damage it.
5. Place the grommet on the end bearing.
6. Insert the armature assembly with grommet into the grinder body placing the grommet into the socket inside the grinder body.
7. Attached carbon bushings into their respective positions.
8. Place pressure springs back into their correct original positions.
9. Reassemble grinder body in the reverse sequence.
10. Plug grinder in. Turn on and test.
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Brushes were worn out

gerald from lamar, Missouri

4 of 4 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers
Parts Used:
CB325
Removed the rear cover and disconnected the old brushes and replaced the old ones. Easy job
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Brushes worn out

chuck from Johnston, Iowa

3 of 3 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers
Parts Used:
CB325
1. Took old out
2. Put new in
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Brushes worn out

george from Eureka, California

3 of 3 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
CB325, 643760-7, 266007-8
Remove rear cover. Remove the brush holder by removing the screw that holds it in. Remove brush by disconnecting terminal. Insert the new brush holder in the same place of the old one. Place new brushes in the holder and release spring to hold brush in. Reconnect the new brush terminal. Then place the rear cover back on.
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Motor brushes were worn and arching.

David from Springfield , Missouri

3 of 3 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
CB325
Remove the rear housing casing, polished armature and replaced the brushes. Put it back together. Works like new.
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Excesive sparks from brushes

mike from calimesa, California

2 of 2 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
CB325
Open housing and disconnected the wires, then installed the new brushes.
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Brushes wore out.

Roger from Pompano Beach, Florida

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
CB325
Remove the back cover and replace the brushes.
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Dead tool.

Eldon from Glasgow, Montana

2 of 2 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Screw drivers
Parts Used:
CB325, 638500-6
Remove back of handle. Saw right away that the brush holder was melted. Remove 4 screws that hold the gear head. Remove the armature. Remove 2 screws that hold the field and brush holder. No need to remove the field. Install new brush holder and tighten the 2 screws that hold the field. and brush holder in place. Install armature and g ear head. Check that the new brushes slide easily. Install switch cover and 3 screws. Should be good to go.
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Makita grinder,6 years old, cord damaged, intermittent operation

Daniel from Boston, Massachusetts

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
CB325
Removed one rear screw on housing near cord inlet. Slid back housing. lifted switch catch on switch , lifted switch up to remove cord wires, removed old cord and replaced with new one. two screws with holding plate secure the cord on machine. Lifted up motor brush spring over to side, removed wire from motor brushes from connection, lift ed out old worn brushes. replaced with new brushes, popped spring back onto motor brushes. slid housing back into place and secured with the screw that held it together in rear near cord outlet. Easy fix, just remember how cord wiring lays inside housing when replacing so housing will slide back on easily. Grinder runs like new.
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Model Cross Reference

This part works with the following models:
ERP Number: ERP10156652
Manufacturer Part Number: CB325
Brand Model Number Description
Makita 9553B Grinder - Grinder
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