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

Рет қаралды 21,118

3 ай бұрын

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

Пікірлер: 54

@tolerance0519 2 ай бұрын

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

@jasonvandervalk3679 3 ай бұрын

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

@deandohertygreaser 3 ай бұрын

I appreciate that

@prasadvn524 3 ай бұрын

What a splendid job.Loved the video

@daviddavies1596 3 ай бұрын

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

@marcmckenzie5110 3 ай бұрын

This episode was a real treat - thanks Dean!

@CrookedSkew 3 ай бұрын

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

@josephking6515 3 ай бұрын

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 3 ай бұрын

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.

@anthonyblacker8471 3 ай бұрын

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 3 ай бұрын

Thank you very much!

@michaelflynn6178 3 ай бұрын

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

@deandohertygreaser 3 ай бұрын

Fingers crossed!

@DeadHeart 3 ай бұрын

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 KZfaq.

@anthonybond9577 3 ай бұрын

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.

@Yes_buh 3 ай бұрын

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

@alasdairhamilton1574 3 ай бұрын

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

@electroluxlad 3 ай бұрын

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

@-GreeferGames 3 ай бұрын

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

@C_Productions 3 ай бұрын

I thought it was marxist at first glance.😂

@Justicesdad 3 ай бұрын

growling

@racing_mntage1584 3 ай бұрын

@Justicesdgad growling

@frankblack1481 3 ай бұрын

100k is coming soon! Wow!!

@smashyrashy 3 ай бұрын

Real interesting one thanks Dean

@tractorruncork 3 ай бұрын

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 ?

@georgegoulborn4162 3 ай бұрын

awesome video as usual, keep up the great work!

@deanstones6773 3 ай бұрын

Brilliant video👍

@jameshall9467 3 ай бұрын

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

@Biffo1262 3 ай бұрын

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

@gungnir722 3 ай бұрын

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

@williammurphy3296 3 ай бұрын

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

@ariamula9497 5 күн бұрын

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

@romanengelmaier8495 3 ай бұрын

this machine is identical to the WekaDK17

@rbedwar12 3 ай бұрын

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

@SteifWood 3 ай бұрын

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

@davidworsley7969 3 ай бұрын

And how many employees are going to do that?

@ElMariachi1337 3 ай бұрын

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.

@ojf10000 3 ай бұрын

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

@arthurbell9389 3 ай бұрын

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 :(

@Poksutin 3 ай бұрын

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 3 ай бұрын

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 3 ай бұрын

@@deandohertygreaser i wonder if the parts are interchangeable 🤔

@jamesriordan3494 3 ай бұрын

🙌

@ChadTolkien 3 ай бұрын

Ready to crack the 100K!

@martincraig-je4vo 3 ай бұрын

Soon be on 100k woop woop 👍 👍

@michaelfairchild 3 ай бұрын

99.9k. Almost there.

@sejdiniripairtools537 3 ай бұрын

😊

@WombleUK 3 ай бұрын

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