How to repair a Makita DHP453 combi drill with a stripped gear, using a old Makita 8391D Nicad drill

[@CritterCraftNZ]

Just discovered your ch. Brilliant to see you repairing in our throw away world. Wouldn't it be grand if we were related. Phil Doherty. My father's father was born in Caranaganiha (spelling uncertain) date u known but my father was James Ignatius, born 1924. Regards, Phil.

[@kymmarshall1116]

Dean you’ve been a big help for me. I got the courage to dismantle my Makita cordless drill to give it an internal clean. Got stopped in my tracks when I couldn’t find where the small leaf spring near the trigger went so I had a look at one of your previous videos and alas there it is . Problem solved 👍🏾🇦🇺 thanks mate.

[@davetaylor4741]

You are a wealth of tool knowledge. I know my way around using the things. And have been known to fix the odd one. But the level you are at with so many brands. That has to be unusual. Makes for interesting viewing.

[@michaelflynn6178]

Great fix I’m sure that will be a great help to someone Thanks for taking the time to upload these videos

[@deandohertygreaser]

No problem 👍

[@michaelhannard7342]

Dean this is the most rewarding video/ repair I’ve seen from you in a long time if I was quoted £50 or 50 euros for a new gearbox and I hadn’t watched you do it about 50 million times I would have bought a new makita on Amazon for about £70 as that is what they cost, it really does appear that today’s world is a throwaway society especially if something broken I really hope that others get the same inspiration as me to attempt one of these repairs if I ever need to, again good work by a guy who clearly knows his stuff

[@davidsmith-ih2kk]

I agree, we live in a world of dwindling resources and that's not just oil. When Lithium is gone no more electric cars or battery operated tools. It's great to watch someone actually fix things instead of throwing them out.

[@michaelhannard7342]

@@davidsmith-ih2kk exactly we enquired about a new van the other month and were told that the current wait time was 23 months for a new van

[@mihnea85]

Dean keep up the good work. Seeing your videos is inspiring and a breath of fresh air in this consumerist society!

[@harpintn]

You make it look so easy.

[@davidsmith-ih2kk]

Ah yes matey but you make it look so easy. I had the misfortune of pulling apart an XU1 hammer drill, and once all those tiny gears were lying on the bench, they soon found their way into a plastic shopping bag forever. I was so befuddled by all those tiny gears I just gave up, and into the bag they went until I found them a few years later and it was a short hop to the bin, but I just kept them for a rainy day. In Australia an XU1 is the lowest of the low as drills go but they work and are cheap. Those Hikoki you don't like, in Australia they are as expensive as Makita and DeWalt. Great and informative video though, but as soon as those gears were on the bench I was lost. There's an art to what you do with those tools an outstanding art, which belies how difficult it is to fix them, as I said you just make it look easy.

[@Mark5mith]

Mine is several years old and the batteries are still good, found an earlier drill with the removable end cap and use that daily, keeps the original good, great wee combi drill series from Makita.

[@neilmatkin3829]

Brilliant, thanks for sharing. Top work.👍

[@michaelplays2449]

Great video !!! thank you

[@conorkennedy5455]

Hi Dean. Thanks for all your videos. Not only an interesting watch, but mega informative. I have the DHP453 and it's been an excellent drill. I found early on that the drill stopped spinning in first gear or made the same horrible noise. Recently, it started smoking and stopped working. After watching your videos, I disassembled it today and the motor still seems to be running ok - wondering if I just overheated it previously. I also took the gear assembly apart, and the teeth definitely don't appear to be stripped. Any ideas? I noticed on one of your other videos about a Makita. You talked about the planetary gears not properly engaging. Do you think this could be the issue?

[@chrislee7817]

Do you come across bearing failure in these? Mine is very slack and chuck wobbles badly. Been meaning to fix it.

[@jasonbuckler190]

No grease in the gearbox? Just the selector ring?

[@pookey06]

My anxiety levels rise as soon as you start dropping small bits on the workbench.

[@davidsmith-ih2kk]

I agree totally as soon as those tiny gears hit the bench its over for me.

[@irvanhadi1312]

do you sell any second powertools?

[@sinanates334]

Hi boss, I have a brand new ridgid r8611503 model. İt makes same problem like this ı opened gear and there is nothing wrong about first gear ring teeths. They are not stripped at all but makes same slipping voice. You have any idea ?

[@AllenCross]

Noticed a 'Donegal Fixings' label on the tool, near the end. Is that you lot - sales, repairs & rentals? Have to say, Dean, given the quality & thoroughness of work performed, your shop's hourly rate is the bargain of the century. 🙂 Speaking of dosh, your Patreon needs more visibility/promotion. More of these folks would happily chip in for the entertainment, alone. .

[@deandohertygreaser]

I haven't been able to give patron enough attention lately, so didn't want to mention it. Been flat out with work, home and editing. So need to get a few teardown videos shortly for patron. I will feel more comfortable mentioning it when I have more videos uploaded.

[@AllenCross]

@@deandohertygreaser Sure, understood. A fellow has to do what feels right. Good on you. .

[@lorialtenderfer]

Wondering what grease you use on the planetary gears when taking apart a gear box and putting back together. I am just replacing one part

[@boberson83]

Would've been a one minute repair had you not already salvaged the chuck on the nicd for something else. Is this an outlier or are there a lot of other Makita 18v that are just updated nicd tools?

[@MalikAbouImran]

My DHP489 makes a loud mechanical noise, like a gear jumping inside the machine, this happens when the drill is using force. for example if I drill a hole, when the drill bit hits the hard part the machine gives a loud bang and continues its work as if it were normal. do you think this is normal?

[@jonscully1079]

Canabalized. ❤

[@radekp.562]

hold up, is the 453 just li-ion-ed 8391d?

[@stephendodd8626]

Hi Dean i have a royobi brushless grinder which was left on the grass over night and got wet and now does not work do you have any suggestions please

[@zaxmaxlax]

Open, clean, dry it.

[@katana-killer1588]

fixing a 453 with a 453 while im handeling my 453 xD

[@markopetrunic7598]

In my country that gearbox costs 26 euros.

[@loochan325]

DDF 453 gearbox price is 24 euro new from Makita autorized retailers.

[@red26rocker]

Please, Dean, stop filming in portrait. Detail is better (larger) in landscape. I don’t watch on my phone, if I turn my tv sideways it doesn’t do anything. Thanks for doing what you do!

[@zaxmaxlax]

Just watch the long format videos.

[@red26rocker]

@@zaxmaxlax yeah, I realized this video was probably filmed as a short, but got too long, so wasn’t posted as one.

[@fordford9133]

Fixing a 453 with a 😂😂

[@deenp3761]

Can you please explain how we can start fixing tools without getting eletrocuted lol Like what to watch out for .thanks dean

[@deandohertygreaser]

As long as you don't open the battery. You cannot get a shock from a cordless tool. They do not have enough voltage to shock you. Cordless tools don't even need a pat test. Electrical safety test for site work

[@deenp3761]

@@deandohertygreaser what about a tool with a cord ? Just make sure it aint plugged in and all is good ? thanks for replyin dean , much appreciated mate

[@davidrichardson3894]

thats only swapping a part from a drill that will probably have the same problem in time, i have the same problem with 3 makita drills the gearbox housing clutch seems to be a problem with these makit drills , have looked everywhere on lin to try and locate thes spare parts but no luck .the complete gearbox costs between £40 to 50 yet you can buy the whole bare drill for less than£60

[@zaxmaxlax]

"throw away made in china society" They want you to buy a new one everytime, why would they bother selling a part that costs pennies to make, literally a piece of plastic. Millwauke is even worse making you buy the motor, switch and controller board as a single unit.

[@davidrichardson3894]

so true@@zaxmaxlax