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Repair Parts Home    Power Tool Parts    DeWALT Parts    DeWALT Hammer Drill Parts    DeWALT DC989 Type 1 18V Cordless Hammer Drill Parts
DeWALT DC989 Type 1 18V Cordless Hammer Drill dewalt logo

 DeWALT DC989 Type 1 18V Cordless Hammer Drill Parts

Page A

 Fig # Part # Img Part Name Availability Price Qty
1620716-02
Clamshell Set
Note: Housing
In stock
2 available
 $21.81
3148354-03
Bit Clip
In stock
25+ available
 $1.12
4607918-41
Screwdriver Bit
In stock
25+ available
 $0.95
5645167-00
Nameplate
Note: DC989 TYPE 1
In stock
1 available
 $1.11
6398649-00
Fwd/Rev Button
In stock
2 available
 $1.87
7152274-19SV
Switch, V.S.R.
Note: Use actuator 611411-01
In stock
25+ available
 $67.08
8398646-00
Motor Adaptor
In stock
2 available
 $3.00
9396505-22SV
Motor and Pinion
Note: Includes Figure 22
In stock
25+ available
 $47.30
10682211-00
Torx Screw
In stock
25+ available
 $1.12
11397892-05SV
Transmission
In stock
23 available
 $50.27
12608060-00
Detent Shifter
In stock
2 available
 $1.87
13330075-91
Keyless Chuck
In stock
25+ available
 $50.61
14395657-00
Dewalt Logo Label
In stock
25+ available
 $1.12
15399152-01SV
Gear Case Assembly
In stock
1 available
 $69.39
16330019-49
Screw,Plastic
In stock
25+ available
 $1.12
Fig #Part #ImgPart NameAvailabilityPrice
17605256-01
Screw (Reverse Thread)
Note: Torx T20 Head
In stock
25+ available
 $1.12
18399059-00
Cam Return Spring
In stock
4 available
 $8.49
20603785-00
Lead Wire
In stock
5 available
 $1.87
21603786-00
Lead Wire
In stock
5 available
 $1.87
22603754-01
Brush Box (Sold Individually)
Note: Included In Figure 9; Sold Individually
In stock
25+ available
 $6.56
23939794-00
Handle Assembly
In stock
23 available
 $16.95
28611904-00SV
Spindle
In stock
2 available
 $38.48
861660141-00
Kitbox
In stock
2 available
 $32.03
866A651034-01
DeWALT 18V Ni-Cd XR Power Tool Battery
In stock
2 available
 $142.96
866B389795-23
Dewalt 18 Volt Battery (XRP, Ni-Cd)
Note: DC9096
In stock
2 available
 $180.99
867645221-00
Battery Cap
In stock
24 available
 $1.05
871ADC9310
DeWALT 7.2V-18V NiCd - NiMh - Li-Ion Battery Charger
In stock
11 available
 $76.31
871B388683-12
DeWALT 7.2V - 18V Charger
In stock
3 available
 $94.64

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Drill Parts  Hammer Drill Parts

Repair Articles

How to Remove a Stuck Drill Chuck
How to Remove a Stuck Drill Chuck

Broken gearboxes and sticky chuck screws can make removing a drill chuck difficult. This article explains the tricks you need to overcome these common repair setbacks.
Drilling, Fastening, and Hammering Power Tools
Drilling, Fastening, and Hammering Power Tools

This article lists the major categories of drilling, fastening, and hammering tools, and explains the basic applications, types, and features of each.
Removing And Replacing DeWALT Drill Transmissions
Removing And Replacing DeWALT Drill Transmissions

This article explains how to carefully remove the transmissions of DeWALT drills and drivers, and how to replace them again.
How to Remove a Drill Chuck
How to Remove a Drill Chuck

This article explains steps for how to remove threaded-on chucks and taper-fit drill chucks, as well as steps for removing a spindle from an open-center chuck.
Discussion
Discussion for the DeWALT DC989 Type 1 18V Cordless Hammer Drill

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  • Subject:
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  • Comment:
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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
pete
Question: Motor Or Switch

pete

When you squeeze the trigger the drill hesitates or you have to bang it to make it work. I'm not sure what part needs replacing; the motor, switch, or brushes?
JR
Question: Clutch

JR

I have a DC989 and sometimes while drilling holes thru steel it gets hung up like the clutch is slipping. I know it would happen on thick metal but it also happens now on thinner metals and wood even. Which part needs to be replaced?
bob
Question: Trans.

bob

I have a DC989 hammer drill and dropped the transmission while changing the brushes do you have a diagram of the transmission? I think I have it right but would like to check.
Mark
Reply: Trans.

Mark

Hi Bob,

DeWalt only offers the transmission for sale as an assembly. Due to this there is no diagram of the transmission available. After you reassemble the transmission, if it will turn freely by hand then you likely have everything assembled properly and it will be fine.

I hope this helps with your repair!

-Mark
imbigbob
Question: Dewalt Dc989

imbigbob

while changing brushes my drill got knocked on the floor the trans went all over I got together but want to make sure it is all there I need a diagram if any one has one or a talk through. thank you:confused:
UtahAV
Reply: Dewalt Dc989

UtahAV

Hi Bob,

DeWalt only offers the transmission for sale as an assembly. Due to this there is no diagram of the transmission available. After you reassemble the transmission, if it will turn freely by hand then you likely have everything assembled properly and it will be fine.

I hope this helps with your repair!

-Mark
imbigbob
Reply: Dewalt Dc989

imbigbob

Utah. I 4 roller barrings that i can't figure out. any help? I don't know where they fell from
imbigbob
imbigbob
Reply: Dewalt Dc989

imbigbob

Utah. I have 4 roller barrings that i can't figure out. any help? I don't know where they fell from
imbigbob
Vonrundstedt
Question: Dewalt DC989 To DC925

Vonrundstedt

Hey, I'm having problems with the chuck on my DC989 and although it spins, it won't close. I figured I would just replace the keyless chuck on the DC989 with a new one. My question is can I put the keyless chuck style from the DC925 type on my DC 989? I already own a DC925 and the chuck never wears down or has any problems like my DC989 does. I've had the chuck replaced by the dewalt store twice (my tools receive constant work every day) and it always is in need of coming back because something like the chuck won't close or the keys themselves are worn out. I love my problemless DC925 and would love to change the DC989 to have the same keyless chuck. Thanks for any help you can give.
qdea
Reply: Dewalt DC989 To DC925

qdea

Hey V,
the chuck size for both models are the same,however the removal I'd presume takes the same steps to apply /remove.

additionally you may have to apply some real man-power to remove the problem one (suggestion:use a pipe wrench or you may have to destroy the complete chuck by hammering away at it)
good luck
Vonrundstedt
Reply: Dewalt DC989 To DC925

Vonrundstedt

Yeah, I figured it wouldn't be easy getting the old one off. Thanks for the advice though!
Vonrundstedt
Reply: Dewalt DC989 To DC925

Vonrundstedt

Funny thing though, it freed the chuck up. Now it works again.
Russprogress
Question: Dewalt DC989 18V Drill- Sparks, ...

Russprogress

I just purchsed a USED Dewalt DC989 18V Drill as a backup to my everyday one. The used drill I purchased has a burnt electrical smell and a higher than normal amount of sparking at the brush area. The first time I operated it I actually had sparks exiting the case. The drill seems to operate properly : power, speed, except for the sparks and smell. Now that I have cycled it through the operations a little, the smell does not appear to be as bad, and the sparking is much less. However the sparks are continuous. My other drill gives off minor sparking when then the trigger is activated or released but not continuously. I am guessing this used drill needs a set of brushes but I am not positive. Can anyone with some knowledge help?
milou6
Reply: Dewalt DC989 18V Drill- Sparks, ...

milou6

I have a DC759 that has all the same symptoms. Mine was purchased new about 3 years back, have taken relatively good care of it.
cmoorejack
Reply: Dewalt DC989 18V Drill- Sparks, ...

cmoorejack

hey guys,
You may have to replace the brush's on that one..part # 603754-01..the commutator [where the brush's may need to be cleaned also..could be build up and dirty] some of these cordless tools do have an odd ozone smell to them, nothing to worry about..the smell could also be coming from a switch starting to go bad..Anyhoo..check your brush's first..if they look ok..you may have a bad motor and will need to replace it..check your friendly neighborhood ereplacementparts.com for breakdowns,parts and availability...:)
Hope this helps..
Craig
Russprogress
Reply: Dewalt DC989 18V Drill- Sparks, ...

Russprogress

Thanks for the info, I have ordered the brushes and will try to clean up the commentattor when changing the brushes. I assume you are saying that the smell may be coming from the switch......If that is the case I will only worry about the smell when it fails and just not use this drill indoors....the smell lingers forever. My biggest concerns right now are the sparks.....Hopefully the brushes help.
milou6
Reply: Dewalt DC989 18V Drill- Sparks, ...

milou6

Yeah, thanks! Will give it a shot. For me the smell only began recently when the sparking started, so hopefully new brushes will sole the smell too (and yeah, it lingers alright!)
blue2thabone
Reply: Dewalt DC989 18V Drill- Sparks, ...

blue2thabone

Hello, i also have a DC925 and it does the same thing as mentioned (bad smell, smoking, and sparks), but i also now have a loss of power. The tool is pretty much useless. does this sound like a bad motor/brushes?
Russprogress
Reply: Dewalt DC989 18V Drill- Sparks, ...

Russprogress

Just a note to update everyone.......I finally received my new brushes and was able to find time to replace them. Outcome: My old brushes were deffinately worn and both lead wires were chaffed through in several spots (against motor case). I should have probably replaced both lead wires, but I just wrapped them in electrical tape, I then installed the new brushes and reassembled the drill........The drill seems to be working properly now. I am not going to say that all the smell is gone, but I would say it is atleast 98% gone, (might still be burning off a little residual), but I dont think it is an issue anymore. As far as I am concerned the new brushes have cured my drill issues. Thank you for everybody's comments!! Russ
milou6
Reply: Dewalt DC989 18V Drill- Sparks, ...

milou6

Just a quick follow up: I had commented about similar problems with my DC759, and wanted to warn anyone reading this thread with that model that it has a sealed motor and the brushes can't be replaced. The motor and pinion are relatively inexpensive though ($26) part number 397156-02.
buildthings79
Reply: Dewalt DC989 18V Drill- Sparks, ...

buildthings79

Also one of the common factors of this problem is the trigger switch. DeWalt has issued a recall that was posted at the entrance to Home depot. The problem was the triggers in these drills would burn up very easily. The wires that go from the trigger to the brushes would be what starts that burning smell. The insulation on the wire heats up so much it starts to melt and catch on fire. I had this happen to me twice. It would most likely happen when I was using it under extreme load like in the hammer drill setting or to drill large holes through thick wood. There is reason why the trigger switch is covered in copper because it was designed to dissipate heat. If you use the drill at anything slower then full speed the trigger (which is a potentiometer or variable resistor) is then required to decrease the voltage to the motor but maintain the current. The excess voltage is dissipated into heat which is why the drill gets hot under heavy use. The wires that run up to the motor from the switch are under sized and over heat under the current demand which starts to melt the insulation off of them. This heat also causes the trigger to fail or at least the variable speed part of it. I have Three broken DeWalt drills with all the same problem. The newer drills have alot larger of copper wrapping on the trigger switch which will hopefully alleviate the problem. Oh yeah One thing that causes fires the most is DIRTY DRILLS. Hit your drill with a blow gun inside the vents and every now and then or take it apart and clean it.Fire needs Three things to start. HEAT, OXYGEN ,and FUEL. so if your drill has a crap load of saw dust and grease from the motor in it clean it all out so theres is nothing to heat up except the original factory parts.
Dave
Reply: Dewalt DC989 18V Drill- Sparks, ...

Dave

buildthings79-

Amen to that advice.... cleaning out your power tools is one of the best ways to keep them working properly. A little compressed air goes a long way.
steel framer
Review: DeWALT - DC989
1 star
steel framer
good tool but the trigger is JUNK!! i've got less than 100 hours on mine and i'm considering a different brand when i replace it which may be soon since the replacement trigger is nearly 20% of the cost of the tool itself. i used to swear by dewalt gear but i guess it's true what they say. "everything is cheaper than it appears".
jmaisonet
Review: DeWALT - DC989
5 star
jmaisonet
this tool has taken all the work out of masonery drywall and just your general hole drilling on most subsrates available to me
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