Repairing CAT D4 clutch fork.

[@snowballengineering]

Check out Pacific Northwest Hillbilly channel for his CAT D4-7U videos if you want to know the purpose of this part: kzbin.info/www/bejne/mGHaeKZjl7Rkaa8si=yPx7KgVxUsJtZeym Make sure you drop a comment saying how you got there 😉

[@onlyme7939]

Done

[@djmips]

There's also disassembly kzbin.info/www/bejne/fHirm5qZbd2gj7c And some more explanation kzbin.info/www/bejne/f4eWpqVslLOag6s

[@gregwarne3252]

yep makes sence now lol

[@PacificNorthwestHillbilly]

Thanks for the shoutout, nice channel you got here! 🍻

[@LarryYaw]

I love his channel. i followed the build from the start. Matt is a sharp fellow. And so are you my friend! I love the video's. Keep them coming!

[@782sirbrian]

Good video, I admire your honesty. You could have edited the mistake out and nobody would know. Like all trades there's always an extra piece of tooling you could do with ! Thanks for sharing your work.

[@WhiskeyGulf71]

Unless you are really well versed at cutting threads on a lathe, my top tip is always start with cutting the threads on the job, before you cut away any other material, I do a lot of model engineering with many different thread sizes, BA, ME, BSP, MM & the amount of times i’ve seen a part almost finished to then be ruined when cutting the threads ! It’s soul destroying to say the least, especially when you scrap the only bit of material you had to hand. In this particular case, you could have chosen any suitable thread pitch as you were making both parts.

[@philhermetic]

That WAS very interesting and a very well done repair carried out in a very cold workshop! Brilliant! Threading on a lathe gets easier the more of it you do! You have got it! Just keep refining the technique! Have confidence, you are a lot better than you give yourself credit for. Phil, East Yorkshire

[@killerbanjo]

It went wrong because you have a metric lead screw. You need to keep it engaged. When cutting larger threads, it is good to set the compound to half (or just over) the angle of the thread so if it is a 55 degree thread, set it to 27.5 degrees then feed from the compound. That will make sure that almost all if not all the cut is done on 1 side of the tool and you will get a much cleaner thread. Obviously with a metric thread, set it to 30. Thanks for the video, I think I have worked through nearly all of them in the last two weeks after finding you channel!

[@andrewrowbotham2347]

Hi Oliver, As mentioned ref metric lead screw. The chasing dial gears are only compatible with a range of metric thread pitches. You can disengage the lead screw and move the carriage back but you have to wait for the dial to re-align with one set mark and not more than one revolution but best to leave it engaged. I would also wind your compound slide back to reduce the overhang, lock it and thus increase the rigidity. Another option it to machine a step on the face which equates to the minor dia and so when the tool touches you know you are at the correct depth. The machine the face to remove. Andy

[@onebadsavage26]

Cutting threads here in North America, we have to do the exact opposite as out machines are SAE based. So when we do metric threads we have to keep the half nuts engaged and reverse the tool out. For a guy that claims limited machining skills, you did pretty darn well.

[@warbirdwf]

Another nice repair video. I like your repair of broken items or equipment videos. I also like that you share your mistakes while fixing/making items. No one watching this video has not made a mistake or 100 and learned from it. Keep up the good work.

[@passenger6735]

Another great video and was most welcome after CEE didn't post this week. On lathes with a metric lead screw (my old chipmaster), reversing is the only method as the thread gauge wont work. To be fair, it's the best method anyway. You may find that your dividing head has some short cuts on the rear for doing popular numbers like 6. Just check the tool height on that threading insert of yours. If it's a fraction high it'll rub and produce a furry thread. I did exactly the same this week. Your furry thread could have been caused by that, or spinning in the chuck, or getting pushed into the chuck but looking at the thread dial you might have missed the mark when you engaged the half nut. The cutting rpm could do with being a little faster for carbide too. You had a relief cut so you had time to stop and reverse the motor. One final thing, if you are using the AG inserts you'll have to go a tad deeper as they aren't a full form (i.e. made specifically for a 14 tpi thread), and they come to a point.The correct depth is for standardisation but in this case it didn't matter as you made both the nut and the bolt and they fit each other. Thanks for making the video.

[@everestyeti]

Am in awe, working out the thread cutting on the lathe was bad enough, but working out how to cut the bolt head was a whole different level. 👍

[@ronbuckner8179]

I lost him at turn” this 6 turns to there”. Out of my league champ.

[@chrisfairbrother9197]

10 out of 10 for working out the dividing head. It’s not simple when you have never used one before. 😊

[@Mike-zu5xj]

Oliver, set your compound to 30 or 29.5 degrees and in feed with compound for thread cutting. Use cross slide to just pull out and return to zero for next cut. It'll help get rid of your jagged cut thread. I enjoy your videos!

[@Dmenbiker]

Oliver, Good morning... Kurtis, in one of his earlier videos, mentioned the in and out of gear to reverse his lathe to make threads was what he was taught... I think he still does that... Sure saves from screwing them up... I watched Matt's video on the D-4... Now I'm watching his rebuild of the excavator... For not being a machinist, you can surely make stuff work very well... Dave

[@BruceBoschek]

I have watched all of Kurtis' videos and to the best of my recollection he has always threaded by reversing the lathe. Unless you do single-point threading very routinely it is certainly the safest way.

[@malcolmbennett3907]

​@@BruceBoschek Kurtis definitely uses the “reverse lathe” technique. Saw him do it recently👍

[@gav2759]

Back in my boat building days, an adze was the fellow to get the heat up. We used to feel sorry for those poor welders who would carry around a piece of styrofoam to put between their backsides and the cold steel. Thanks for posting.

[@col2lin]

I enjoy following your channel because the "uninteresting" things are something I haven seen before, how you prepair the items all goes to make your work a good watch.

[@GICK117]

To us who find any fabrication to be fascinating, this job wasn't close to boring. Making things of metal to function as a piece of machinery makes for good entertainment.

[@Gbsje]

It is real craftsmanship that you show. And it is real, with errors and all. You are real and honest. Hope your name snowball will also roll and give us some nice videos. stay safe and healthy.

[@garyyorke1080]

Great video , as you say it's good to use different skill sets and change up the work load keeps it interesting not doing the same thing day in day out . Tig looked good from my point of view not everybody has the time to keep up on certain skills as they change for the daily requirements . Could be your next job needing tig could be tomorrow or 3 months time . Might be time to invest in a set of thermal overalls or you might not be able to move much with all the layers .. cheers for sharing the rebuilt very interesting

[@hl8256]

Always wonder how treads were figured and cut and how the dividing head worked. Thanks for explaining. Great video

[@Jack_C_]

Normally, if your leadscrew is metric you can disengage the half nuts when cutting metric threads but not imperial threads. Conversely if your leadscrew is imperial you can disengage the half nuts when cutting imperial threads but not metric threads.

[@snowballengineering]

That’ll be why then, I have a metric lead screw. Thanks for letting me know.

[@Jack_C_]

There is a method where you can disengage the half nuts if you need to, eg if you are working up to a tight shoulder. You need to stop the lathe immediately (back out the compound of course). Put the lathe in reverse and immediately re-engage the half nuts on the same number you started with on the thread dial. So long as the thread dial has not gone a full revolution, you should end up in the same place as if you hadn't disengaged the half nuts. This way it is much easier to avoid a crash against a shoulder. Thanks for another great video!🙂

[@bobhudson6659]

Exactly. Many also teach, who have been in machining all their life, that regardless of what the lathe is designed to cut, metric or imperial threads, they never disengage the half nuts although the method mentioned below by Jack_C_ also works. I don't disengage - I have a foot brake and my foot hovers over the brake bar ready to pounce. Nevertheless, good backside "pucker factor" when threading up to a shoulder. No time for distractions.

[@seamusbolton215]

This is a great channel and I love your work Two points that may help your thread cutting 1. I have a Colchester Student with a metric leadscrew and you can not use the thread dial indicator to cut an imperial thread you must leave the lathe in gear all the time, I am guessing your Harrison is the same ? 2. It appears you are using the cross slide to advance the depth of cut on the thread, this will work of course but you will be cutting on both sides of the threading tool and it puts a lot of pressure on the tool and leaves a bad finish, its better if you use the top slide to advance and set it an angle and the tool only cuts on one side There are a million videos on youtube on single point thread cutting that will help Thank you once again for your excellent videos

[@theessexhunter1305]

I was typing that answer about leaving it in gear as threading is what I have done the least of over the years. I did a left H tailstock nut and left it in gear as I was not brave enough lol

[@snowballengineering]

I’ve tried doing metric threads leaving it in gear and had the opposite result. Maybe it’s a metric lead screw? 🤷‍♂️

[@chox2001]

I have always left in gear and wound off the cut depth. to be honest I never knew about the dial to match up threads.

[@royflint3551]

I thought it was very interesting! I like seeing the different stiff you have to machine and fix. Nice one! 👊

[@Frank-Thoresen]

Great video. You should have tried to repair the brass part with the TIG if the client wanted. It had a lot of wear on the top as you showed.

[@MsMad555]

Super kanał naprawde można się nauczyć czegoś praktycznego i przydatnego dla prawdziwego faceta- pozdrawiam!

[@paintanddent]

Indexing is always a bit iffy on older machines-too many variables-- better to stop and reverse and keep engaged-- well done that man!! always good when spindle brake works well!

[@kirkpowell6161]

Great video! I have watched other videos where the machinists use a lathe to cut threads. I have never understood how they get the cutting tool to enter the cut in the exact same place after they back it out. NOW I understand fully, THANK YOU!

[@snowballengineering]

Glad it was helpful!

[@AW-Services]

Another great video & fix Olly. Another showcase of your limitless skills and willingness to support your customer base

[@wallbawden5511]

nice work there just goes to show we can all learn something new and be all the better for it showing your mistakes along the way shows how humble you are and not afraid to show us that no matter how good we are or think we are we all make mistakes well done on the thereding and all thanks for showing us the how to of it all Cheers

[@randyhughes5160]

That was interesting especially the math required to turn the flats . It turned out well

[@colmone5592]

You could do with being sat down comfortably and also having a support for your wrist when you do all that Tiggery Pokery.

[@ProfSimonHolland]

can you use a thread pitch gauge to check thread depth?

[@vansien]

You are making life really hard for your self by not running test cuts with the lathe and mill, even if you're really well versed with these things life throws a spanner in the works every now and then. Always test prior to doing the real work.

[@rupert5390]

Fantastic - for the sake of saying something a little different - your mistakes - i.e. reversing instead of using dial for threading - is an incredible learning/teaching view/experience for us - nice Job young man - cheers

[@BruceBoschek]

Kurtis (CEE Australia) cuts all his threads by reversing. 😊

[@rupert5390]

thats helpful.@@BruceBoschek

[@curragh2840]

This lathe seems to have a metric leadscrew, if that is the case you have no choice but reverse if you want to cut imperial threads. The same thing would apply if the leadscrew was imperial and you wanted to cut metric. The thread dial is only useful if the leadscrew matches the thread you want to cut.

[@Crabneedspony]

Best way to learn just get on and do it, customers in my opinion don’t realise just how long these ‘little’ jobs take, good job 👍

[@davidtyndall8880]

When guys like you do not show your mistakes, it is just a "movie" and not a "lesson" for us to learn by.

[@bchdsailor]

Learning by doing, and doing it extremely well

[@petefletcher]

Very often the case on imperial threads. It SHOULD line up but often doesn't. Love your vids - keep 'em coming.

[@onlyme7939]

Sunday treat again

[@mfc4591]

Whoever puts that back together will be happy with that repair. Good job, hope you have a warmer week !

[@lemmy9996]

Another great video , and great job, Oliver!!👍👍

[@mikeaustin9810]

You say it wasn't very interesting but it is very interesting to me to see how you adapt to the different jobs at hand you are very well-versed in your skills keep up the good work 💪👍💯

[@andrewrobinson2869]

Every job is a interesting job , they are all learning experiences for me especially. Cheers Andy Australia

[@The4Crawler]

I'll assume your lathe is set up with a metric lead screw. I think that's normal that it must be left in gear when cutting imperial threads. My lathe has an imperial lead screw and I need to leave it in gear for cutting metric threads, although I've never used that feature yet as the parts I thread I use a die holder in the tail stock.

[@WhatTheTarnation.]

Just amazing how handy you are. You must be an 80yr. Old machinist stuck in a young man's body. You know so much. Carry on and we will await your next one!

[@snowballengineering]

There’s a lot I don’t know but learning along the way is what makes it so fun.

[@onemoredeadman]

You've got the same problem Kurtis has with bananas

[@seansysig]

Use your plasma cutter scribe head and recreate your lathe gear plate selector. Then paint black then sand off surface to reveal letters and numbers%

[@snowballengineering]

Good idea

[@dougallmcmillan8970]

Please don't underestimate the value of all your videos. They are all enjoyable to watch and you sre a very detailed and patient teacher. Keep it up

[@AdelinoGambiarras]

It was very interested video deferment but is part of what you do Olly.

[@tonysheabo]

CEE always uses the gearing when cutting threads so that’s the best recommendation of how to do it correctly.

[@thepagan5432]

If my failing memory serves me right that thread is a 1" UNF, one of those threads that us dinosaurs used to use along with BSF, BSW, etc 😂😂. Well done mate, that bronze inner part will needs bushing soon. We've had so much rain coming down the mountain that it has washed down loads of stones which with the leaves totally blocks the drains so the road becomes a stream. The council do clear it but sometimes I'll clear so my wife doesn't have to get wet feet getting to the car. Take care 👍

[@DavoShed]

You have probably already figured this out but for the other viewers. When cutting imperial threads on a metric lathe your only choice is to reverse the lathe with the half nut engaged. The change gears produce a very close approximation but you can’t disengage and re-engage like you tried. Same thing cutting a metric thread on an imperial lathe. I did a video on this a little while ago. How to Cut a Metric Thread on an Imperial Lathe For a Fire Poker kzbin.info/www/bejne/gJXZk6GkYpZ8lZI You did a great job figuring out the dividing head. When you have more complex divisions Google “Dividing Head Calculator”. It will save exploding your brain. I still remember the formula from around 1980 when I learnt it. T=R/N T=the number of turns required R=the ratio of the dividing head (90 in your case) N=is the number of divisions you want. Then you just figure out which plate to use with the number of holes. 2023 just Google it 🤠

[@Farmersamm]

That crappy gummy stuff you're working with.........forget carbide threading inserts. Use a HSS bit. Keep the speed down, and use a lot of oil. Clean it all up with a metal brush. Dress it when done with a lathe file.

[@yeagerxp]

Oliver as I have said before "YOUR VIDEOS ARE ABOUT REAL LIFE NEEDS NOT ABOUT SHOWING OFF YOUR SHOP EQUIPMENT OR ABOUT SOME OTHER BLAH! BLAH! BS" Interesting work, you having to cut imperial threads 😵‍💫😵‍💫🥴🥴😭😭😭Excellent work 👍👍👍. Thank you for sharing. Be safe 🇨🇦

[@kentuckytrapper780]

Excellent job my friend, great video, keep'um coming..

[@GeneralSulla]

Just a thought. Turning the threads into metric would do what different if you're fabricating the nut and sleeve? Asking for a totally ignorant of engineering guy.😂 I'm sure I'm not even asking the question right.

[@josdaalmans6977]

Nice job done. I'm looking already to the Pacific Northwest Hillbilly channel for a long time. His D4 rebuild was also a nice job. I found your channel by the WWW channel. I'm also following thew CEE Australia channel. Although myself I, was 40 years active in IT maintenance, installation and the last 20 years in sales, I kept my interrest in technical stuff like trucks, wheelloaders, draglines and big V8 race cars. I worked on those in my younger (and wild) years. Now I'm already 4 years retired and maintain old Ex MOD Landrovers S1, S2, S3 and Austin Champ. I've bought myself 13 years ago a Landrover Ninety V8 to keep the feel of the normal mechanical stuff. It went from a rattling car to a smooth running one after rebuilding the transmission, Engine and coach repairs. Your channel is interresting for technical guys and I like your approach of tackling problems. Keep up the good work.

[@akidojlaw537]

Hi Oliver, I’m just seeing the beginning of your video and maybe I’m wrong but you kept pointing to ARBY but kept saying ARAY and the levers or paddles were set to ARAY. I’m really enjoying your videos even though I have nothing to do with engineering,thank you for the content.

[@scotthultin7769]

1094 👍's up Snowballenginerring thank you for sharing 😊

[@malcolmbennett3907]

Interesting video. You’re an enterprising young man. I always used the “reverse lathe” technique for single thread cutting, when I worked in a tool room. Might take a bit longer but saves making errors.👍

[@Harry-ll2xm]

That was a good piece of machining well done you are very talented ✔️✔️✔️✔️✔️

[@powerq21]

Was very interesting to me! I really enjoyed following along & learning with you - I've never quite figured out the dividing head yet! Thank you so much & looking forward to the next one! All the best!

[@iantaylor9840]

Another great video Olly, thanks. If we weren't interested we wouldn't be watching. Well done working out what looks like and ancient indexing head. Nice to see other channels I'm watching mentioned - Watch Wes & Pacific Northwest Hillbilly - just shows we're all tinkering all over the world. Although I'd put yourself and Wes in a different class, for sure. All the best, Ian

[@carloskawasaki656]

Thank you for sharing, always a pleasure watch your project 👍👍👍👍

[@2nickles647]

I wouldn't complain Ollie. Your work is good for me. Im not a machinist by any means. Not im i perfect in my work. But ive managed to do with what i have. God bless Ollie

[@alandawson2813]

Awesome job Oliver, keep up the great work. From kiwi land.

[@BrucePierson]

That dividing head sure was complicated. Looks like you need a PHD in physics to be able to work it out.

[@mongoose388]

I wish I had the courage, at his age, to go into business for myself. Oliver is fearless in taking these jobs on. My only advice is to watch some of Abom79's threading videos from back when he did real work instead of infomercials.

[@derekcomer4858]

It was a really interesting video, fascinating actually. Thank you 🙏

[@LifetimeinWelding]

Motorcycling rechargeable Battery powered heated gilet also do socks & glovers.

[@brianalder2234]

Nice one ! Bit different 👍. Rest assured most of us would end up with 7 sided nuts or 3 ! 👍👍👍. Those dividing heads are definitely from the Darkside 👍😁😁😁

[@hornetboy3694]

Awesome video, amazing work. Thank you Oliver

[@Hui9697]

Ooft, you're not the first and you won't be the last. I reckon your lathe has a metric lead-screw. If so then you shouldn't disconnect the screw when cutting imperial threads. Same for the other way round with an imperial lead-screw and metric threads. At least you wen't 8 hours into something when it went tiddlywampus.

[@GICK117]

It is very interesting. You have a Knack with metals that most don't. I do enjoy your projects since I am getting to old to do myself,

[@janharpershea2359]

You say “it’s not the most interesting of jobs” and yet it was just as engaging to watch you rescue an ancient component, solving problems along the way, and keep a piece of kit operational, as is to watch you build from scratch.

[@crawford1656]

Love the channel. Would like to see your repairs once you put them back in service. Thanks.

[@orville697]

you lost me on the indexing head, curtis from CEE on his indexing heads has separate plates with different notches in them 6, 8 etc, makes life a lot easier. Great video.

[@hpda44]

On the contrary, it was very interesting. You do good work for what you have available

[@davidkrueger2987]

if i remember right kurtis cee aus does his threading the same way. i'd say your in good company. good job smart fix.

[@petessite]

all your jobs you do are interesting ,pity its so sodding cold in the shop ,least its dry , good bit of TIGGINg , keep at it we ll wait for next video , regards to you from essex

[@ruthbees7214]

That is the best way to cut the threads leave the lathe locked in and back off and reverse my mate is a very good toolmaker always does his thread cutting without the dial indicator. Just leaves the lathe locked in he said you cannot go wrong. His thread dial is so dirty thats how i knew he didn't use it. Glad it worked out for you.❤😁..Did well with the dividing head clever boy worked the Oracle as my late father used to say.😂

[@andrewedwards6548]

Every job you do is interesting. 😊

[@ralflisell3287]

Came out nice in the end, I hope. Risk of breaking later, if bushings were not exact in line?

[@southmaplegarage]

I think when your lead screw is opposite of the thread origin your cutting you leave it engaged and run it back on the lead screw. I could be wrong but I know it worked for me.

[@DuncanAitken]

2:00 A perfect candidate for your engraver! You already have the photo, after all. ;)

[@ИгорьДедов-к5ж]

Tell me, why when cutting threads on a machine does the running shaft rotate, which gives feed during turning and the threaded screw? Or is this a feature of the machine? Thanks for the interesting videos!

[@toddplenda5569]

I see you got on the nit hat, I started watching you last year and you had on your nit hat, boy time flies keep up the good work work.👍

[@ncut5547]

Well u soon learned how not to pull screw cutting leaver out of gear ...it turned out really good well done sometimes its good to tax ya brain on a different challenge keep up the good work thks for the video look forward to the next one...

[@DependableAutoTruck]

found your channel just jumping around looking really enjoy it so far

[@RallyRobert976]

Great job not afraid of a challenge. Link below gives a idea what this is for.

[@markroth9827]

Thank you for your video. Interesting diversity of work.

[@Karlos0412]

You should get a cheap vinyl cutter and etch the numbers back onto the thread dial. I have a cheap Cricut cutter and its easy as balls to set up.

[@bryanlatimer-davies1222]

Is the lubricant able to sneak out of the cross drilling, or does the nipple close the hole off when screwed in ?

[@jimsvideos7201]

If you had a dividing head but no plates and really needed a hex you can indicate each of the jaws horizontal on the front side and then on the back side to get the six faces.

[@walterrobbins4470]

I was wondering what you had in mind to weld the second thread insert without buggering the threads. Then I saw how you did it and I thought “good idea”

[@davidregister7405]

Why the heck don’t you have at least a wood stove once again I hope your channel blows up you deserve it

[@71Giggles]

Ah, I see you’ve used the big hammer method of effective engineering. Well done, love you thinking out loud on how to get the job done.

[@injuredplea]

I used to call the big hammer the "Fine Adjustment Tool". Very effective!

[@beyondmiddleagedman7240]

1”-14 is sure an odd pitch 12 is normal fine pitch.

[@glennfryer1539]

A good repair, the fork was well clapped out, that will keep the old girl going for a long while..

[@whathasxgottodowithit3919.]

Love your videos, amazing content. You carried out a first class repair on that clutch actuator, big old piece that. P.S. Did I see a Seed Potato Box on the shelf above the lathe? When i was a youngster the estate where we lived had the land owners name on on all his seed potato boxes. We had to continually turn them, and sort the bad ones out. (Wet day job) if you know , you know. :-)

[@snowballengineering]

Yes, they used to grow potatoes back in the day, way before my time.

[@ericcapucci9869]

wow that torch is huge you need a number 10 water cooled torch so much easier to deal with.