Repairing a growling Marcrist DDM3 Wet and Dry diamond core drill with a bad bearing and seals.

These Marcrist DDM3 and DDM2 core drill where quite popular at a time.
But I see them less and less now since marcrist stopped selling them.
They where a good enough machine for the job, but I always found repairing them very expensive.
This one in not all that expensive a repair for a change, the second hand housing has helped keep the costs down. But if you need the seals replaced in yours, your best bet js to remove them, read the size and order them from a specialist seal supplier.
#marcrist #ddm3 #ddm2 #coredrill #drill #big bigdrill #marcristcoredrill #tools #repair #fix #powertools #toolfix #deandohertygreaser #toolrestoration #howto #toolrepair #marcristrepair #marcristfix #machinerepair #machine

[@tolerance0519]

you really are a wizard with Power Tools Dean! I am addicted 😂

[@jasonvandervalk3679]

As your channel grows you still stay humble is what i appreciate

[@deandohertygreaser]

I appreciate that

[@prasadvn524]

What a splendid job.Loved the video

[@josephking6515]

I hope you have a child who wants to follow in your footsteps because when you retired there will be nobody with your encyclopedic knowledge to take your place. The thought of all those tools with a part broken or in need of a bit of rubber going into landfill upsets me a tad. Thank you for the videos and I am pleased you showed up on my feed for some reason. 👍

[@michaelfairchild]

On Evolution mitresaw, stand and vaccum video he made a bench with, he had a little helper from time to time and possibly load of that were cut out too for private reason we all understand and approve.

[@daviddavies1596]

An excellent video of a repair of something out of the ordinary. I particularly liked your use of the split outer race to fit the new main bearing. Keep the videos coming Dean

[@anthonybond9577]

I don't want to sound like I'm preaching, but I hope you wear barrier cream. If not thin disposable gloves would be a good idea with all the oil and kerosene you come into contact with. A friend of mine got bladder cancer and the oncologist told him it was caused by absorption of oils and chemicals through his skin. Keep up the good work. I'm a maintenance fitter and thoughly enjoy your work.

[@marcmckenzie5110]

This episode was a real treat - thanks Dean!

[@michaelflynn6178]

Well done Dean hopefully 100 thousand soon as it is well deserved Thanks

[@deandohertygreaser]

Fingers crossed!

[@CrookedSkew]

Tremendous wisdom, especially how to not to press on the inner race of that large bearing. Thank you,. Looking forward to more.

[@anthonyblacker8471]

Congratulations on breaking the 100k subscribers mark. You've earned more than that plaque but great job, great video, wonderful wisdom and knowledge every time!!

[@deandohertygreaser]

Thank you very much!

[@-GreeferGames]

I read it real quick and thought it said narcissist and i wondered what happened to the tool world

[@C_Productions]

I thought it was marxist at first glance.😂

[@Justicesdad]

growling

[@racing_mntage1584]

​@Justicesdgad growling

[@williammurphy3296]

I've never had to do one of these but this was great Dean good watch 👍👍👍

[@georgegoulborn4162]

awesome video as usual, keep up the great work!

[@smashyrashy]

Real interesting one thanks Dean

[@electroluxlad]

As a professional Core Hole Driller, I never had ever cared for a handheld machine after being twisted up once😂

[@deanstones6773]

Brilliant video👍

[@tractorruncork]

Nice to see something a bit different. Carry on the great work & congrats in advance on 100K 😎 How about a shop tour video showing some of the range of New tools etc available to celebrate 100K ?

[@frankblack1481]

100k is coming soon! Wow!!

[@Yes_buh]

That’s her! 99.9k now! Love the vids mate and nice tip with the old bearing 👍

[@jameshall9467]

The marcrist ddm1 is made by aeg it’s basically a cheaper copy of the aeg/milwaukee core drill

[@alasdairhamilton1574]

All ready for Hatton Gardens😎 👍🏴󠁧󠁢󠁳󠁣󠁴󠁿

[@Biffo1262]

Use an endoscope to read the markings on the seals. Simple and very cheap these days.

[@ariamula9497]

You sound like a Derry man, but your talking about Euros I'm guessing you're in Buncrana or Muff? Love these videos.

[@gungnir722]

wish y'all had these harbor freight and walmart tool brands in europe. i'd love to see how they hold up over time

[@rbedwar12]

Looks like you need brighter light...I'm kinds can't see good..got to have bright white light...like watching your fixes

[@romanengelmaier8495]

this machine is identical to the WekaDK17

[@SteifWood]

To avoid rust during storage, what about removing the water hose, run the drill to dry and then applying some drops of oil?

[@davidworsley7969]

And how many employees are going to do that?

[@ElMariachi1337]

I remember opening up my first Weka, was expecting grease but oh boy I was wrong: a workdesk full of oil. The cleaning probably took me longer then the repair.

[@DeadHeart]

During my 3.5-year training as an industrial mechanic, I learnt that you always have to oil the contact surfaces of ball bearings when inserting them. Nobody ever does this on KZbin.

[@ojf10000]

Hi mate. Great vid as always. The oracle of all things power tools! Ive got a DDM3 that occasionally spins if you keep changing the speed selector but 9/10 you can just hear the motor turning and thats it. I assumed id need a new head as thats all marcrist seemed to list for the gearbox but i couldnt find one anywhere so gave up on it. Do you reckon its worth cracking open or will i likely need parts i wont be able to find? Cheers

[@ChadTolkien]

Ready to crack the 100K!

[@WombleUK]

Glad I watched this video as I had been looking at 2nd hand Marcrist DDM3 as I don't want to spend hundreds & hundreds on a new one as don't do enough cores anymore to justify it. I had a Makita core drill years ago which was cheap but absolute garbage the clutch just kicks in constantly making it torture to use. I had an ELU core drill which was the absolute dogs bollocks until someone else decided they also liked it so stole mine :( Would a used Eibenstock be a decent tool or are they like the Marcrist also? Really enjoyed this video, made a pleasant change from Dewalt & Bosch lol

[@Poksutin]

we use the same hand drill and its made by weka and its german machine. very reliable and it is well abused :) and i believe that even husqvarna makes nearly identical machine :)

[@deandohertygreaser]

Yea the weka looks like it may be the original. I would guess the rest are Chinese copies. Even Vevor has one for same identical to the marcrist for 200 euro with a big core bit also.

[@Poksutin]

@@deandohertygreaser i wonder if the parts are interchangeable 🤔

[@arthurbell9389]

hey dean thanks for all the great videos! I have learnt a lot and repaired quite a few things. Is there any chance on doing a video of a spindle replacement on makita circular saws as I can't find any information ANYWHERE online on doing this. seems to be a press fit bearing and some other kind of clip but I'm not sure :(

[@martincraig-je4vo]

Soon be on 100k woop woop 👍 👍

[@jamesriordan3494]

🙌

[@michaelfairchild]

99.9k. Almost there.

[@sejdiniripairtools537]

😊

[@joastrobl6103]

Looks like my WEKA DK16

[@jasonbuckler190]

Well done on an obsolete machine.

[@techguy666]

Looks like a Chinese copy of Weka machines. Definitely not the same build quality though.

[@hucks33]

Almost 100k Deano 👍🏻

[@chuck77k]

and who cares that the gloves was invented... :)