Question about Milwaukee 5321-21 Rotary Hammer

2 Answers

Spline drill bit won't spin

I have a Milwaukee 5321-21 roto hammer and the drill bits won't spin, it just hammers. What could be the cause of this?

Posted by on

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,176 Answers

There a a few things to look for, first is the selector on top in the hammer only position or hammer with rotation. Second look at the spline bit, does the splines look worn excessively also try and look in the nose of the tool for spline condition and last the clutch mechanism might have come apart. Good news though this tool might be covered under warranty, some had a 5 year coverage.

Posted on Dec 18, 2008

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 17 Answers

It might be jammed check it

Posted on Sep 26, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Bosch 11241EVS won't hammer


Not all bits for hammer drills are the same as the slots in the sides of the shanks are different between makes . There is a standard between hilti and ramset drill bits but other makers have different ideas Check out the shanks of your drill bits and look for the slot that holds in the bit.

May 26, 2013 | Bosch 11241EVS SDS-Max Rotary Hammer

1 Answer

Quick change clutch is locked


Push the rubber sleve off the drill bit and up the drill bit then the plastic ring. release the clip around the spindle. Slide the clip and chuck sleve forward and remove the ball sitting in the spindle. You should then be able to pull the bit from the machine. If it does not want to come hold the bit in a vice and tap the spindle off the end of the bit using a suitable punch. Rebuild chuck in reverse.

Jan 29, 2013 | Milwaukee Electric Tool Milwaukee 5359 -...

1 Answer

I have a hitiachi DH38ye drill and it won't accept the Bosch spline bits. they go in ok but the chuck won't lock. The drill accepts the hammer bits fine but won't accept the drill bits


you have me stumped on this one. The tool you have is a spline shank hammer and it should accept all standard spline bits and also hammer iron that is made for these. Is it possible that the Bosch bit has a burr on the splines not allowing it to lock? I have checked the Hitachi site and found no reason it would not work. I will continue checking though.

Apr 23, 2011 | Hitachi Rotary Hammers

1 Answer

I need to know what carbide Masonry drill bits are for the Matabo KHE54


there are only 2 types of bits for any rotory hamer you should just take it in with you and find one that fits rember to pull the loking shank back and the bit locks in

Oct 24, 2010 | Metabo KHE54 1 9/16 Inch Spline Drive...

1 Answer

Bought a 5378-20 Milwaukee hammer drill used - what are the settings 1 and 2 for? No instruction manuel. thx


one setting w/hammer is for chipping,breaking up stuff.other setting w/hammer and drill symbol is for drilling in masonary application's

Apr 21, 2010 | Milwaukee 5321-21 Rotary Hammer

1 Answer

Remove broken drill bit


soak the chuck area real good with W/D40 or similar,position drill so lube doe's not drain .let sit for awhile, then turn upside down and gently whack it about, worked 4 me,

Oct 04, 2009 | Milwaukee Tool 1 - 1/2" SDS - max Rotary...

1 Answer

My milwaukee 5316 rotary hammer drill wont spin,just hammers


Could be a couple things, do you have the selector in the rotation mode, also there is an internal clutch that might have broken or the splines on the spindle might be rounded. If it is the clutch you would have to take it in for repair, it is extremely tricky to work on. Take the bit out (make sure you are using the right bits for this tool) and look at the splines to check their condition. Let me know if I can help more

Aug 25, 2009 | Milwaukee Tool Rotary Hammers

1 Answer

Bosch 11247 Hammer drill works in drill mode but in hammer mode it spins as drill but does not hammer. Also how can I remove drive shaft from housing?


Usually replacing the o-rings on the piston, striker and Impact bolt will solve any hammering issues. That is considering there is no damage to the mechanical parts in the hammer mechanism.

Feb 27, 2009 | Bosch 11247 Factory Reconditioned 1 -...

1 Answer

When drilling the clutch starts to slip


if it slips to easily that is a problem, but it is designed to slip some when the bit binds up in the concrete. If you feel it is too easy, I would not recommend trying to service at home. I used to work on them and they are a pain, the clutch is an assembly and I would recommend taking to an authorized service station so they can check the static slip on the clutch mechanism and then advise whether needs serviced or acceptable.

Sep 28, 2008 | Milwaukee 5321-21 Rotary Hammer

Not finding what you are looking for?
Milwaukee 5321-21 Rotary Hammer Logo

Related Topics:

437 people viewed this question

Ask a Question

Usually answered in minutes!

Top Milwaukee Rotary Hammers Experts

John Trevino

Level 3 Expert

1378 Answers

Mike Carew

Level 3 Expert

958 Answers

Phil Rivera

Level 2 Expert

83 Answers

Are you a Milwaukee Rotary Hammer Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...