Question about Dewalt DC920KA Heavy Duty Xrp 18V Cordless Drill/Driver

1 Answer

Cleaning up gear transmission for new grease - Dewalt DC920KA Heavy Duty Xrp 18V Cordless Drill/Driver

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,902 Answers

Once you take the chuck off use somethine to the effects of brake cleaners, Wrap everything that you do not want to get the brake clean on and clean it and then let it sit for a few minutes then go ahead and oil everything and you will be good. Safe and effect way to do this especially if you have dirt or sand in the gears

Posted on Feb 20, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

My Makita drill stops spinning mid drill and starts again whilst stopped it makes a horrible grinding noise. Can anyone tell me what is causing this? And how do I fix it?

as with any power tool there are gears attached and when things are used they wear . the stopping might be a dirty connection . and being under the load when it stops puts much more stress on the moving parts .you could open it and grease it goos , cleaning the contacts at the same time but sooner or later it will go again ,and possibly never restart .

Aug 14, 2015 | Makita Drills & Drill/Drivers

1 Answer

Chuck will only turn side to side after repair of gears box after

I need more information to answer your problem.
The chuck normally has movement turning because of the clutch gear.
It is possible if you had a gear strip or spindle break that there are pieces of metal in the grease that have jammed your new gears. I would recommend tearing down completely, remove all the grease, thoroughly clean gearcase, regrease & reassemble.

Nov 13, 2013 | Milwaukee 1670 1 Drill 1/2 900 Hole Hawg

1 Answer

I know there is a stripped gear in the gear housing, how do I disassemble gears, and where do I get replacement gear

You can go to a parts site like, do a model number search and you'll get a great breakdown of your tool. You can get the parts that are still availabel on the same site or find the part number and do web searches to see if there are better places to buy. As far as taking it apart, removing the three screws on the front of the head will let you pull the transmission off the motor housing. Be sure to grease everything up well when reassembling.

Nov 07, 2012 | Milwaukee 1101 1 Drill 1/2 500 D Hdl

1 Answer

Drill will not turn but will you can here a grinding sound. Drill will turn when done by hand. Drill has not been run for over three years.

The gears are worn out,take it apart to verify. They need to be washed out with mineral spirits and greased if okey,otherwise they wear out the gears

Buy a new one on--- Tool

Best prices for Makita

Nov 06, 2010 | Makita 6402 3/8" Drill, 5.2 AMP, 0 - 1,200...

1 Answer

The motor runs (Milwaukee 1670 1 Drill) but the chuck does not rotate. This is true with both low and high gear. I suspect the gears are stripped but never had one apart before. I removed the top cover...

Hi, chances are the spindle driving the check is snapped. This is quite common. At the same time you might (probably) have some broken teeth on one of the intermediate gears and the narrow gear closest to the motor. I have just dissasembled three Hole hwags for a plumber friend of mine and they all have the same damage issues. The cover should come off fairly easily. Give it a couple of taps with a hammer to loosen it. The cost of replacement parts if the issues are the same is at least $100. Some of the spindles are more (the threaded ones) and will bring the cost closer to $170. remove all the grease as broken teeth will be hidden in there. The only thing I have not been able to find is proper grease to put back into the tool. Hope this helps.

Aug 25, 2010 | Milwaukee 1670 1 Drill 1/2 900 Hole Hawg

1 Answer

I have 3 of these and all of them have a problem after a while that they slip the clutch even when it is selected to the drill position, can the clutch be adjusted?

I just took mine apart and it appears that you have to replace the entire transmission. It is an easy job and the part is about $34 much cheaper than a new drill. Really, it is one third the price of a battery. Just take the 4 screws out that hold the metal case to the plastic clamshells, slide the front of the drill off, pull the transmission out of the rear of the drill put the plastic piece with the gear indicator on the new trans, if needed, slide the new trans into place, spin the motor if needed to get the output to line up with the planetary gears, slide the front of the drill back into place, rotate the chuck to align the shaft  with the transmission output, put the 4 screws back in, enjoy.

Might want to replace the brushes while you are in there as well. I am going to consider this the dewalt version of an oil change

Dec 29, 2009 | Dewalt DC920KA Heavy Duty Xrp 18V Cordless...

1 Answer

Gear grease for hilti drill/driver

The genuine hilti grease isnt that easy to get. but I have used a stadard lithium grease in the past without any problems.

Feb 09, 2009 | Hilti 3431126 SF 144-A CPC Drill/Driver

1 Answer

New grease gun, never used. change mode switch from L to H will not engage all the way. Motor will not start.

may not be a solution, just an idea
but the switch shits actual gears, the splines may not be aligned enough to allow the transfer.
put it back in low, run the motor a few revolutions to change the alignment of the gears, then try the shift again, like a crash box on a model T

Aug 17, 2008 | Dewalt DC920KA Heavy Duty Xrp 18V Cordless...

1 Answer

Fell apart!!

the transmission comes in assy. all u can do is to match the gear & test every small installed. if it's dw997 see for your guide how to re-assemble.
if dw988 trans diagram see similarity on how to put it back.

Aug 16, 2008 | Dewalt DC920KA Heavy Duty Xrp 18V Cordless...

Not finding what you are looking for?
Dewalt DC920KA Heavy Duty Xrp 18V Cordless Drill/Driver Logo

199 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dewalt Drills & Drill/Drivers Experts


Level 3 Expert

60667 Answers

Jim Thurston

Level 3 Expert

669 Answers


Level 3 Expert

1113 Answers

Are you a Dewalt Drill and Drill/Driver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides