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Motor and Pinion

Part Number: 396505-22SV
DeWALT
Availability: 11 in stock
Price: $41.16
Quantity:
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*This part replaces obsolete part #: and 396505-22.

Description:
Genuine Dewalt replacement part, this part is sold individually.
This Motor Assembly is used in the Dewalt Cordless Drills shown below.
This Motor includes the Drive Pinion on the shaft and the Brush Set.
Repair Stories
3 of 3 people found this instruction helpful
Tool Type:
Cordless Drill
Parts Used:
Motor and Pinion - 396505-22SV
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, TORX BIT
Motor armature assembly worn out
Remove screws from housing. Remove one half of the housing. Noting the placement of the internal parts. Carefully remove the motor, noting how the tabs are located in the housing. Reassemble in reverse
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1 of 1 people found this instruction helpful
Tool Type:
Cordless Drill
Parts Used:
Motor and Pinion - 396505-22SV
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, Pliers
Tool repair facility diagnosed a bad motor/armature for $18. Repair estimate was $129.
I ordered the new motor for less than $50. The back of the motor housing had been removed by repair facility with four Torx screws. I pulled the two solder less electrical connectors from the motor with long-nosed pliers and carefully slid the motor/armature assy from the cordless hammer drill. I carefully wiped/Q tipped the years of grime from the interior of the housing. I greased the internal gears minimally with another Q-tip and slid the new motor assembly into the housing making sure the gear teeth seated properly. I attached the two solder less electrical connections and clipped them into the small plastic wire management shim on the bottom of the motor housing. I reinstalled the plastic back of the motor housing and carefully tightened the small Torx screws by hand. I tested the drill in forward, reverse and all three of the transmission settings. It works great! Thanks, ereplacementparts.com!!!
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0 of 0 people found this instruction helpful
Tool Type:
Cordless Drill
Parts Used:
Motor and Pinion - 396505-22SV
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, Pliers
The motor was smoking and had no power while operating
Very simply repair, I removed the four screws from the top rear plastic motor cover allowing the cover to be removed. This exposed the motor and pinion. With a pair of needle nose pliers, I removed the two wires attached to the brushes, one on each side and marked them + & - in accordance with their location. I then removed the bad motor and pinion. I then installed the new motor and pinion aligning in the same position as the old. I reattached the positive and negative wires to the brushes. The top rear plastic motor cover and screws were reinstalled. The drill works like new.
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Discussion
Discussion for Motor and Pinion - ( 396505-22SV )
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1178333
Question: Cleaning Power Drill

1178333

I have a DC989 that I just replaced the brushes. Still getting sparking but can't remember if it is more than usual. I wanted to clean the motor. I already used compressed air but it still is very dirty with black soot in there. probably from the smoking it was doing with the old brushes. What solvent should I be using to dunk this in to clean out the soot?
WJA
Reply: Cleaning Power Drill

WJA

Hello 1178333,

If the motor was smoking and arcing, then you put a new set of brushes in the motor. And now it is still arcing and you have blown out the motor with air. My guess is that you are in need of a new 396505-22SV motor assembly. I would think if you put the motor in any kind of solvent it would do more bad then good.

Hope this helps,
-WJA
chrisjo
Question: Dewalt DC988 Smoking/Sparking

chrisjo

I have a Dewalt DC988 drill that throws sparks and occasionally smoke out of the vents on the back. Good burning smell too.
Brushes looked ok, but I replaced them anyway (only $4/brush).
It still does the same thing.
Wondering whether I should try replacing the motor or what?
Motor costs about $40 on ereplacement.
Any suggestions greatly appreciated.
Cheers,
Chris
Mike
Reply: Dewalt DC988 Smoking/Sparking

Mike

It definitely sounds like the motor to me. Your magnetic field could be cracked or you may have a short in your armature. Either way, you need to replace the whole motor before it takes out your variable speed switch. The motor comes as a sealed unit and includes a new set of brushes. Here's a link to the motor for your drill:

eReplacementparts.com : MOTOR AND PINION [396505-22] - $39.50
GANNET
Reply: Dewalt DC988 Smoking/Sparking

GANNET

[quote=chrisjo;359]i have a dewalt dc988 drill that throws sparks and occasionally smoke out of the vents on the back. Good burning smell too.
Brushes looked ok, but i replaced them anyway (only $4/brush).
It still does the same thing.
Wondering whether i should try replacing the motor or what?
Motor costs about $40 on ereplacement.
Any suggestions greatly appreciated.
Cheers,
chris"
safety first, remove the power source battery or unplug the tool--- had same problem with a dewalt cordless drill-try this if you are comfortable with taking unit apart. Get to motor, remove brush box (housing)-- i'm guessing you did this to replace the brushes--with very fine sand paper clean the commutator- the part of the rotor that the brushes make contact with until you see clean copper evenly where the brush will make contact. Blow out any junk from sanding,now you will notice small grooves or lines on the commutator-using a razor blade or very small flat head screw driver(jewelers size) carefully clean out each one until you can see a separation between each, again clean out with compressed air - reassemble.tool may spark some as brushes re seat them selfs should only 5 to 10 seconds on high speed.be sure to test in safe place no flammables etc.if still a major problem go with a new motor .
Hope this helps
chrisjo
Reply: Dewalt DC988 Smoking/Sparking

chrisjo

Tried the cleaning and no help.
Ordered a new motor and put it in today.
Works like a champ.
Thanks for the help.
As the motor came with its own set of brushes, I have a spare set of those too :)
Cheers,
Chris
Ben
Reply: Dewalt DC988 Smoking/Sparking

Ben

[QUOTE=Mike;363]It definitely sounds like the motor to me. Your magnetic field could be cracked or you may have a short in your armature. Either way, you need to replace the whole motor before it takes out your variable speed switch. The motor comes as a sealed unit and includes a new set of brushes. Here's a link to the motor for your drill:

eReplacementparts.com : MOTOR AND PINION [396505-22] - $39.50"

I recently replaced my motor with new set of brushes included but I still have sparks after testing it. Will the sparks go away after awhile?
branden34
Reply: Dewalt DC988 Smoking/Sparking

branden34

MIne did the same. I havea new motor on order. since that is the easy way out lol. I have no clue how to get the brushes out anyways:rolleyes:
UtahAV
Reply: Dewalt DC988 Smoking/Sparking

UtahAV

[QUOTE=Ben;3425]I recently replaced my motor with new set of brushes included but I still have sparks after testing it. Will the sparks go away after awhile?"

Yes, there will always be some sparks, that is normal. When a new set of brushes are put in, the end of the carbon that touches the commutator on the armature is flat. That surface will quickly wear to the curvature of the commutator. The excessive sparking you initially see is from the brush wearing to that curved shape.

-UtahAV
-Mark
Wheelygood
Reply: Dewalt DC988 Smoking/Sparking

Wheelygood

Great website and it is VERY easy to find parts!

I just finished replacing the brushes and have the same issue as the previous posters. So I will now buy a new motor.

Will the motor slide out once I remove the leads to the brushes?
Do I need to be concerned about anything else when I pull out the motor?

Thanks in advance for the help.
Product Information
Manufacturer: DeWALT
Category Number: 396505-22SV
Classification: Part
Weight: 1.10 lbs.
Shipping: Ships Worldwide world wide shipping icon
Repair Guides
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