Easy
15-30 minutes
This is a genuine OEM approved replacement armature assembly which is specially designed for use with Makita angle grinders. The armature is the center component of an electric motor, over time it may wear out and begin to fail eventually requiring a replacement. This high-quality assembly is sold individually, please note it includes one durable metal armature, the plastic fan and the armature bearing.
Armature Assembly 115v 515616-3
OEM part for: Makita
Part Number: 515616-3
$31.33
In Stock
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Compatibility
This part will fit the following 6 machines
Makita
9554NB Angle Grinder View Diagrams & Manuals
9553NB Angle Grinder View Diagrams & Manuals
9553NBK Grinder View Diagrams & Manuals
9554NBK Grinder View Diagrams & Manuals
9555NB Grinder View Diagrams & Manuals
9555NBK Grinder View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Grinder Parts
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Easy replacement
Installed it and works great
Guest -
November 3, 2020
Verified Purchase
Great part,good price and fast shipping.
I have a good experience shoping in your store.I find ease the parts with good prices and i like the tracking and fast shipping
Guest -
July 17, 2020
Verified Purchase
easy repair
in good condition arrive quicklyand working really good
Florence -
December 31, 2019
Verified Purchase
Easy repier
Good
Guest -
September 10, 2019
Verified Purchase
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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.
After running the grinder too long, the motor ran slowly and noisy, heated up quickly.
WILLIAM - June 15, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Grinder
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, 10 mm box wrench
Parts Used
1. Removed the single screw next to the cord and removed the rear cover.
2. Removed 4 screws from the gear box and remove gear box.
3. Removed or relieved the spring tension on the brushes to allow the armature to be removed.
4. Pulled the armature and the bearing plate from the front of the grinder.
5. Removed the nut holding the gear on the front of the armature and pulled the gear from the old armature (hand should be sufficient to pull) Support bearing and bearing plate and gently tap armature from the plate.
6. Pressed the new armature into the bearing.
7. Make sure that the fan does not hit the bearing plate.
8. Remove rubber cover from the rear bearing on the old armature and installed on the new armature. If rubber cover is not on old armature bearing, insert screw driver through brush opening and pop the rubber cover out of the housing. This will require removal of the brush carrier with two Phillips screws.
9. Push the gear onto armature shaft and reinstall and tighten the nut (10mm wrench)
10. Install the new armature into the housing (make sure brushes remain out) and reinstall the gear box with the 4 screws.
11. Reinstall the rear housing and the retaining screw.
2. Removed 4 screws from the gear box and remove gear box.
3. Removed or relieved the spring tension on the brushes to allow the armature to be removed.
4. Pulled the armature and the bearing plate from the front of the grinder.
5. Removed the nut holding the gear on the front of the armature and pulled the gear from the old armature (hand should be sufficient to pull) Support bearing and bearing plate and gently tap armature from the plate.
6. Pressed the new armature into the bearing.
7. Make sure that the fan does not hit the bearing plate.
8. Remove rubber cover from the rear bearing on the old armature and installed on the new armature. If rubber cover is not on old armature bearing, insert screw driver through brush opening and pop the rubber cover out of the housing. This will require removal of the brush carrier with two Phillips screws.
9. Push the gear onto armature shaft and reinstall and tighten the nut (10mm wrench)
10. Install the new armature into the housing (make sure brushes remain out) and reinstall the gear box with the 4 screws.
11. Reinstall the rear housing and the retaining screw.
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Grinder would run, but overheated, and developed no power
Donald - November 25, 2021
Tool Type
Grinder
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
Parts Used
A new armature fixed it. Access the armature by removing the rear grinder housing ( 1 screw). It may take a little wiggling to get it off. The only "trick" to removing the old armature is to relieve the spring pressure on the brushes before trying to pull the armature out. The entire job took maybe 15 minutes.
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The tool was making a horrible noise and far to many sparks from the brush area/
Paul - May 5, 2020
Tool Type
Grinder
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
1. Removed Grinder head assembly
2. Removed body cover.
3. Released springs on brushes and disconnected wiring from harness and brushes.
4. Removed Armature Assembly
5. Removed Field
6. reassembled in reverse order from above.
2. Removed body cover.
3. Released springs on brushes and disconnected wiring from harness and brushes.
4. Removed Armature Assembly
5. Removed Field
6. reassembled in reverse order from above.
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Smoking and keeping noise
Florence - December 30, 2019
Tool Type
Grinder
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Pliers
I removed the screw from the cover along with the 4 screws up front then the 2 screws holding the field in place After i removed the cover covering the brushes i took a small needle nose plier and move the springs holding the brushes and took the field out then fitted the new parts in reverse of how i took them out
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Brushes wore out, unit smoking heavily
John - December 14, 2017
Tool Type
Grinder
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, O-ring hook
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.
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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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
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