I worked on a coal strip job with a buddy who would get his D-9 G beside mine, we both had the u-blades.Talk about an improvised big push. That double DD9 is a great piece of history. I love those 666 CAT scrapers. Many Thanks to Boston Power for a great video. God Bless to all.
I sat here watching, shaking my head with a smile on my face. Boy Howdy you did a superb job on the double9 as well as everything else. I thought the B.P.C. decals were nifty too! Glad everything is settling down and all is as it should be. I worked on a dam job that had single 9 pushers and TS & S Euclid pans. Long time ago and my back and hindmost still hasn't gotten over it. Got to go run the 5-K some but will be thinking about the Double-9 and the Triple-6! Hi to the Mrs. and the folks and everybody else hanging about the diesel museum. Squeeze some juice out of Pops' beard for me! (Us'ns) here in the hills
Ahhh Lewie, I thought I would keep this video quiet, make it a Christmas surprise for you!! So glad to hear that you enjoyed it. Don't worry I do have your email and I will be replying, but you know how work and everything else gets in the way of life!! Hope all is well you and the family?
Bostonpowercat Well my friend, you sure succeeded! I knew when you got re-settled back home there would be a dandy lurking around, and there sure was! What a combo. Mercy I dearly love the sound of those big bore/long stroke engines with a V-8 or V-12 thrown in for good measure. Got done with the big job so am now just knocking around home and running the 5-K once in a while, enough to keep the kinks hammered out. I lay stiff odds you and your Sweetie are just like big-eyed younguns in a candy store, making home sweet home home sweet home. Maybe if everything works out one day when you go visit Beantown again you might swing down South for a day or 2. We're all fine here for a couple of goofy people but we can blame that on our ancestors if we need to. You have a LARGE weekend and store the juice from Pops beard in a bomb-proof container. Don't want anything agrivating it and CHEERS 2 U ALL from (Us'ns) here on the semi-swamp
Thanks for the fill-in on the multiple unit control,on those D9's! Actually that's straight out of the Baldwin Locomotive Works playbook,as they also used a pneumatic system on their engines! Later,they used the far more common EP,that everyone else used! [EP=Electro-pneumatic],Applied to EMD,and Alco,plus Lima! Thanks for a VERY impressive machine(s),and a beautiful restoration! Wow,!! Thanks again! 😊 💯💯💯💯💯💢💢💢💢💢
Very well done video of historic CAT machinery! One of the quality aspects of this 74 thousand + viewed video is the nearly one hundred swell comments from all your friends and admirers!
Thank you so much 👍 It's the great comments that make it all worth while, we haven't monetised our channel so we don't make any money from it. Thanks for the comment
Holy cow!!! I'm surprised how well you can navigate this beast!!! You came within inches of the gate while backing up just before going to black and white.
Worked in Ca and we had a spread of 20 of these scrapers to start every morning. No double 9 but we had plenty of pushing power D9's H & G eventually progressed in to D9L's somewhere on the spread they always had an HD 41 Fat Alice. Miss it every day!
I got the chance to see this setup in action back in the late '70s when they were building the interstate hiway about 70-80 miles west of my home. So cool, it influenced my decision to get into construction.
This is just pour Cat Power Porn. All your machines look amazing restored to there former glory and I dont think iv ever seen a DD9/Quad-Trac before until iv watch your videos. Please keep up your amazing work :D
+farmertrg Than you so much for your nice comment, comments like this make it worth while putting videos up as we don't get anything for it. Glad you enjoyed, cheers 👍
Wow that's cool I live in telford shropshire I also drive dozers and use to work for uk coal on a d9t and am fascinated by the older dozers like d9gs but I also love the farming too👍
Farming and Cat equipment is in our blood! The new D9s are all ok, but we really love the G, for us it's just "classic Cat" Good to see you watching the videos 👍
Thanks very much, really appreciated, will hopefully have a new video on the go pretty soon, the weather has picked up nicely so it makes it easier to get stuff out and started without making a mess everywhere!
Thx for that info on the cylinder ; the sound of those 9s is music to my ears. Started as a Swamper for my Dad when I was about 10 on a D8 14A with a Johnson bar. I would sit there all day on the Cat watching my Dad build road just so I could start the Cat with the pup motor in the morning ; sometimes a can of beans off the manifold being all tarped in in -20 weather and eventually getting to fuel the Cat at night. Thx BPC.
You have a lovely set of Cat d 9 Gs good on you they are a pleasure to look at the engines are running like new actually the dozers look like new i hope that in times to come they will be well looked after as these lasies need looking after and should be preserved if at all possible into the future thank you for the video all the best greetings from Ireland
Hello to Ireland from Wales!!! Yes we are certainly looking after them, it took a lot of time and effort to get them to where they are now so we don't want it to go to waste. Thanks for your kind words 👍
I'm sure just making a video this length gets expensive. Especially if moving any of this stuff over the road is involved. Fuel, insurance and the crew to make it all happen adds up fast. Its not an easy game to play but thanks for playing it. No dam PCM or security codes will ever stop these from burning diesel. Simple is still just fine for me.
+scooterlh78 Thanks for a great comment, glad you enjoyed the video, have a look at some of ours if you like the old kit!! We will definitely be doing some more videos in the future, we have just fitted a cable control unit and blade to our D8-8R so will probably getting some footage of that together once the weather picks up here. Cheers 👍
Awesome. very impressive. From the days when muck shifting meant brute horse power. This the first time I've seen one of these DD9 set ups where the rear tractor appears to be steering independently, rather than just being dragged.
+Mick B, Thankyou glad you enjoyed the video ,yes she is surprising manuverable for a big bit of kit ,you may be aware but you have the ability just to steer the rear tractor only if you only want to make fine adjustments to the turning.Cheers
I still think about you knotheads even though you haven't posted anything in years. I realize lots have happened. Just want to know I'm still here. CHEERS and Best Wishes from The Hillbillies!
@Lewie Mc Neely ,Hi great to hear from you,yes things change and we have not posted in years,thing is my bro Rupert used to do all the film side of things and me the spanner’s ,he has a little time now with a wife and youngster!,but I’m still spannering,I know Rupe used to message you regularly ,we have some pics on Instagram if you look us up,.Im busy when not working restoring an old D8 2u pipe layer,then got a real nice D8 13a “pusher” to build up. Cheers Karl.👍
@@Bostonpowercat WOW and Double WOW! I can't BELIEVE it! HI, Karl! This is just TOO good! GLAD to hear from someone with the old kitty with indigestion again! That's what I always got your brother with. He vanished right after the wedding which I thought he would and that was not really a surprise. That usually happens when that happens, for a while at least but here comes the dependents/tax write-offs or children and things always change drastically after that. 3 stages; single, married and with kid(s). PLEASE give him and his my best and I've thought of yall a LOT since the wedded bliss set in! Also the folks, even though a lot of time has passed and also a lot of friends along the way. We just celebrated our 19th anniversary so things are still looking up! Sounds like you have a lot of job security too. Seems like Rupert had just landed a job himself around wedding time. I finally had to quit because of gout not leaving me alone but being at home is NICE! I still burn some diesel when I can but it doesn't happen much BUT I mow enough grass to offset it somewhat. And it was GPOOD to see the Triple-^ and Double-9 again. We can email too. Thanks again Karl and God Bless!
Buster Petersons neatest design if u ask me! My Buddy Glen has A 660 and a few 9s but not the "DD' very COOL! I just saw the real one Duane Doyle had restored and what a machine!!!!
+Jdigger4130 Yes your right, an outstanding piece of engineering from Buster Peterson, and so advanced for the era and technology available at the time!! I have seen a video of Duane Doyle's Quad an it looks very impressive, a superb job has been done. Thanks for the comment 👍
These tractors were built at Peterson Tractor in San Leandro CA by the late Howard Peterson. Peterson Tractor built quite a few incredible tractors they also built two D-9’s side by side.
Back in the mechanical control era it's that would have taken a bit of engineering to get the steering clutches and brakes to work together. Beautiful pieces!
@Matt Berg ,yes it was hard enough building that set up from scratch using all the Cat components and getting it to operate ,but some incredible engineering to design and build Quad 9s by the legendary “Buster Peterson”.👍
As an old Catskinner I'm guessing that front cylinder on that rear 9 is to lift the front end when you're backing up to eliminate drag. What I find amusing is the push block on rear one meaning you could have 4 9s pushing together.
+Nelson G,that cylinder is called a weight transfer cylinder ,which as the name implies gives the operator the ability to shift weight to the front or rear tractor to help traction,also when left in the float position it acts as as a shock absorber when travelling over rough ground,and is used to lift the drawbar when uncoupling.Cheers.
Hello ,are you really from near Boston, U,k!? You should have one of your home town machines too! ;-)) An RB would be also fun filling an athey dump trailer behind the 830mb 😊
When I was a kid I remember seeing a huge tractor at my uncle's farm in Montana(late 80s) , it was the biggest vehicle my young eyes had ever seen. Years later after he passed I saw some pictures of the farm. And there it was in the background it was the tractor from a 666(or very similar scraper) I wish I had the picture of it(I'd really like several pics of it) but those good old boys had that big 2wd monster pulling plows in Montana. And who knows what else they used it for!
@Alex Wrench,that would have been an awesome sight seeing one of those girls as a farm tractor !,they were certainly huge! back in the day and there would be very few tractors today to match the 666 size and power!.Great story thanks for sharing.Cheers.
+generationll Yes a D10 would no doubt push load the 666 and probably better than the Quad, but it still wouldn't have as much traction as the Quad purely because it only has 2 tracks not 4. There is nothing wrong with the high drive system and it definitely has proved itself of the years your right, but here at Bostonpowercat we are all about the classic Cats most of them being pony start and no cab, never mind in seat starting and high drives, but that's just personal preference :-)
Hi, Bostonpowercat. So you've gottem finished and ready 'for war'. GREAT stuff. They are lookin' good. Thanks for sharing. May you have a happy and prosperous 2017. Just my 0.02. You have a wonderful day. Best wishes. Deas Plant.
+Deas Plant Thanks for your great comment 👍 Yes finally all finished and done, even though we have only just put the video up we took it back in the summer when the sun was out, but had been waiting on a new laptop to do the editing. We hope you have a great and prosperous 2017 as well. All the best Bostonpowercat
+Deas Plant Thanks for your great comment 👍 Yes finally all finished and done, even though we have only just put the video up we took it back in the summer when the sun was out, but had been waiting on a new laptop to do the editing. We hope you have a great and prosperous 2017 as well. All the best Bostonpowercat
If I remember the two D-9 set up came from a man who was related to LeTourneau and I think he worked for either a CAT dealer or a construction co. If I remember correctly the name of the co. or person was Peterson.
@Dp.oennis Maurer,your memory is pretty good!,the chap who invented the Quad9 was called “Buster Peterson”,the brother of the founder of Peterson Tractors Howard Peterson.It was Buster that use to work for Le Tourneau before he joined up with his brother. If you are interested in Cat special products that Buster invented and Peterson history there is a book called “the first sixty years”written by the grand daughter of Howard Peterson a lady called Eileen Graften,she has just completed anther history book to celebrate the 80 years of the Co ,which goes to the printers next week!,so will be looking out for that one myself👍
I think its just plain wrong, for one man to have so much fun, if I sound jealous, it's cos I am. Hahaha. Great videos, bud, keep 'em coming, absolutely love this stuff.
Maybe you could do a video of how the controls work on the double 9. Like, when you turn left, what does the rear tractor do? Opposite clutch and brake? Is it hydraulic? What does the ram on the nose of B do? I really have A LOT of questions! Super nice job on the fleet and the videos!
+Schneids15 Thanks very much, glad you have enjoyed the videos 👍 as for what camera I use some of the older ones were taken with a Canon 60D and the newer ones have been take with a Canon 80D and also an iPhone 6 Plus. The Canon 80D is great for movies with the touch screen and the iPhone image stabilisation is amazing hand held. Hope that helps, cheers
Nice! Thank you! I currently have an action camera it is great for outside but inside not that good. Might be something for me to look into! Keep up the good videos!
Beautiful set of machines! Caterpillar dealer tech here and I had a few chances to work on the D9G's and the 583 Pipelayers. A couple of questions, Does the rear unit have some sort of an open differential to steer it by and the front unit drag it around like a trailer, or does it have the traditional clutch packs like the front unit does? Also does the hydraulic cylinder that attaches the rear unit to the push bar have a special purpose like balancing the front unit or is it to make detaching the machine for transport easier? I think that I could see separate controls for the rear tractor, is it able to be ran on its own or does it have to have the front tractor there in order to get it to operate properly. Thank you for taking the time to keep this old iron going? Nothing like hearing the old engines still purr except to have two of them going for the full effect!!
+Matt Lee ,thanks for the interest ,the rear tractor still uses its original steering clutches/brakes,but they turn in a jackknifing movement,to make a turn when right front clutch/brake applied then symultaniously the rear left clutch /brake is applied,so they turn in an “arc fashion”,you have the ability to use only the rear tractor to turn left/right for “fine turns”. The hydraulic cylinder is called a “weight transfer cylinder”,and does what is ses,by increasing traction to front/rear tractor as required,when in the float position which it is mainly used in it acts as a shock absorber over rough ground.And yes it is helpful when you have couple /uncouple them. This particular setup only has the front control platform which was the majority in most Quads,but some of the first few built by “Buster Peterson “from Peterson tractors CA,had duel control platforms ,which meant they could be separated and moved independently,this is something that I would like to add to ours if I can find a second control platform anywhere?.
Thanks for the information on such a unique machine. Buster Peterson must have been a great engineer/mad scientist as I think that he had a hand in making the Siamese D8 and D9 side by side dozers as well. Sounds like a great individual that I would have loved to sit down for a few beers with. Thanks for restoring and maintaining his work. I look forward to seeing some video of you guys scratching the paint off of this one and the 666 scraper. Got you subscribed and look forward to your videos. Is there any way you could share any information on Mr Peterson in another video?
+Matt Lee,we have been recently in contact with a lady of the name Eileen Grafton ,who is granddaughter to Howard Peterson the founder of Peterson tractors and brother of “Buster “,she is presently collecting data on Busters products ect ready to launch her second book on the company for its 80th year,if you can get hold of her first book called “the first sixty years” it is certainly worth reading as it gives a lot of details on “Buster”and all his custom products. You are certainly correct,he was an outstanding engineer in his time,and was responsible for helping to keep Caterpillar ahead of its competitors!.
Do you guys still use the pony motors or did you go direct electric conversion? And it is really cool to see and hear the old D353's running again,I miss that sound.
Dear crew: I have never seen this type of coupling between two dozers. How do you synchronize these engines, steering etc? What a beautiful restauration.... Good luck!
twancol,Thankyou for your comments ,it’s is called a Caterpillar quad trac or later known as a Cat DD9G,there were only very few built and only a handful surviving today.In short basically all normal controll leavers/pedals ect removed and replaced with air chambers,and air control valves,with air controll carried to the rear tractor in an umbilical of 16 hoses.Syncrinizing engine speeds is not a major issue due to the power shift transmission absorbing any differences,and infact their are two throttle pedals to provide independent power to front/rear tractors when conditions require it. Cheers👍
Lol yes a very good point 😀 We need a bit more space, but it would be nice to do a load or 2 with the setup, you never know it maybe a future video so make sure you are subscribed!!
Great restoration-I have been around for 75-years but never saw anything like these monsters. I lived close to where a (cloverleaf) was being built on Interstate 65 in Alabama and I watched them work every day during the summer. It was in the mid-1950's and I saw some big scrapers. Some had 4-wheel tractors, and some had 2-wheel tractors, but none were as big as what you have. Do you have pictures of the restoration work? I looked for your web site and it said expired. 🤷
@Tmcn1899,Thankyou for your comments,yes it was certainly a lot of work getting that old iron together,we made the front covers with articles in the “Classic plant “magazine which was a uk published magazine by Kelsey publishing ,and also the front covers with articles in two of the Caterpillar club (ACMOC) magazines from the states .These have details of the restoration. We have also just made the pages of “Peterson Cat” latest book published by their historian Eileen Grafton called “85 years and still going strong”. Cheers.
@Burt Brooks,yes for a couple of reasons as these blades are specifically for push loading scrapers so the blade is narrow to fit in the cut that the scraper makes,and the inside push arms were designed so that they fit on trunions atached to a heavy duty belly guard and inturn bolted to the chassis ,which removes all the stresses on the final drives which occur on conventional blade set up.Cheers.
@@Bostonpowercat I’m a dozer geek lol!!! I really appreciate you taking the time to explain 👊 all three pieces are just awesome, I love that old iron and most of all the old style C emblem cat used during that time👍👍 thanks again for sharing your videos I really enjoy them as well as my dad too, we have been in the dirt business for 50 years like most of the rest of us dirt nerds we like looking at that old equipment
@Burt Brooks,it’s great that we are like minded and love the old iron ,the old Cat gear was so well made it’s nice to try and keep them alive . Many thanks for your nice comments . Cheers👍
I changed better looking tracks than those on the front cat. I worked for kewit in 71. We had a pair of quads pushing 651b's. That was the first time I saw the alligator master link.
@Cbmech,ey you must have had plenty of dollars to waste!lol.Actually got a new set of chains sitting for her,but she don’t do any work but will get em on when I get some of the other projects done.Do you have any pictures of those Quads ,it’s a well known Co you worked for who undertook some of the biggest projects back in the day along with S J Groves.We got a couple ex Groves 666s,and an nice old gent Arthur wickes who worked for them sent us some old pictures of their quads.Great to hear from you.Cheers👍
@@Bostonpowercat the grousers looked better but pins and bushings had about half an inch of play . Kewit didn't bother to turn pins and bushings on a quad. They are murder on tracks. I never took any pictures, wish I had. The was the last stretch of interstate 90 out by davenport wa . We had 7.5 million yards of basalt rock to move. Drill it, shoot it, rip it and move it with a fleet of 13 651Bs. We had a couple of d9gs with the new parellelagram ripper and a AC hd 41(what a pile of junk). Very interesting nostalgic video, thanks. 👍
As a side note , one of the scrapers, on a previous job had argued right of way with a train and kinda won. 35,000 dollars later it was back in the dirt . It derailed 4 engines and 14 cars , about 4 million dollars in freight damage in the first 2 cars. The operator had a heart attack and dropped the cutting edge right between the rails with a full load , and Kewit put side boards on the bowl . The cushion hitch was always a problem though , we couldn't seem to the adjustments quite right.
@@Bostonpowercat I'm not sure how many they had but I know that they had at least one on every scraper spread . It was all about yards per man hour . Our dirt boss decided to push with a quad and the HD 41, which worked well until they ripped the belly out of one of the 651s . Luckily Cats regional warehouse was about 90 miles away in Spokane .
I just start watching your videos two days ago 1 19 22 made a few comments on Operating all 3of them the quads and the double-barreled. I feel sorry all the operators that couldn't run a quad in a cut!!! I operated mine at Anaconda Copper mine in Green Valley Arizona and I sure like to know where you're at and if I could come and Operated one , one more time if I could make it up to the seat , some body said there back still hurts today, he must have been on 660 they were rough righting ? Or it had a bad seat...😭😭 jk
@James Keene ,Hi that’s great information Thankyou ,I have read about the Anaconda mine and the Quad9 on the web a few times,do you have any photos of your old Quad 9?,The equipment for ours ,ball ,hitch, controll platform ect,ect,came from a well known Company from Selma Ca,called “Colin Co”,later called “Agristruction “it was all from their “Super Ripper” set up which is published in many Caterpillar books. If ever you over this way on holiday you would be very welcome to get in the seat ,would be great to have a proper operator on board .I built them up from two normal 66As from scratch ,a lot of work but a great accomplishment I think in keeping some rare history alive. Cheers👍
I used to haul these and ran them to back in the 60's & 70's. Our D9's push cat's had a completely different Push Blade on them back then. We had a narrow push Soft Touch (or Cushioned pusher) Where you have a hole lot wider Blade on yours. And, we had the Single Deep Rippers on the back of our's. I guess ours was just ordered differently from Cat.
Looks like you have some military hardware as well - or are my eyes deceiving me. Never seen anything like these before - I would have thought that 'ball joint' connection looked a bit of a weak point. How do the engines stay in 'Sync' when "travelling light" without the front one pulling or the rear one pushing the other.?
+Christopher Lovelock Hi and yes your spot on there is some military equipment kicking around, if it's not Cat then its military for us!! The ball joint is very solid and bolts on under the rear tractor, I know what you mean, but that thing isn't shifting that's for sure!! As for staying in "sync" they are linked with air controls between the 2 Tractors so anything you do on the front one is reciprocated in the rear one. We will hopefully get a new video together explaining how it all works 👍 Thanks for the comment
Didn't Peterson build at least a prototype of a Quad D9 with the tractors side by side rather than front and back? I know they worked on such a design, but I don't know if one was actually built and operated.
Amazing video. Any chance of a video talk through of the controls on the master machine? Heard of these (and the side by side DxD) but never seen one running.
Hi, this combination as it stands hasn't been utilised as we just don't have the space, but originally this is how they were used day in day out moving serious amounts of earth on massive highway projects. Cheers 👍
@cthunter41,yes the rear D9 turns,the unit turns in a “jack knife”movement ,if turning right the front tractor turns right but the rear turns left then they follow through an “arc” movement .you can control just the rear tractor to turn left or right and stop all control to front tractor which gives you “minor”turns.👍
@B L ,where did you manage to find the hitch?,have you got all the controll gear as well ?, I would be interested in a controll/seat platform for the rear tractor if you come across one. We don’t work any of the cats really just some of the old D8s ,just collect and restore them Cheers.
@@Bostonpowercat I was down in Texas looking at a G and I thought was I was seeing was it. It sure was. I only have the hitch. Thats all that was there. The old man told me the tractors were scrapped in the 80's. I can't understand it.
That’s great ,you had a real lucky find ,at least that’s the most important part saved,not too many Quads about now.If you get a look at Peterson Cats latest book “85 years and still going strong”they have a chapter all about Quad 9s and we were very lucky to have ours included. I know you will need the controll equipment yourself ,but if you do manage to find a controll platform on your hunt for parts that you don’t require please let me know. If you need any help regarding pictures/details when getting them together give me a shout ,I’m not an expert but I did build ours up from two basic tractors. Cheers👍
@@Bostonpowercat yeah thanks. I'm gonna probably have a lot of questions. Did you build yours or are they factory DD tractors? I'm gonna push scrapers with mine when i get it done. This coming winter is where all my time will be spent.
@B L ,no they weren’t factory DD ,I built them ,you won’t have much time for anything else!,lol,it’s a fair amount of work,but certainly worth it,and you will have the fun of working yours. Yes any help I can give you ,no problem ,if you are on “what’s app” on you phone ,then when you ready I can send you plenty of photos,drawings ect. You need to get hunting for all the air controll gear and seat platforms now👍
Nice video. Do you know what those D9 tractors weigh as they stand there..? On the last tractor, is that a massive counter weight on the back of it? Thanks!
There's enough torque and horsepower in this video to peel a priest off a choir boy!
thats by far the best comment ive seen on the internet
AHAHA AHAHA
Has to be one of the coolest bull dozers I have ever seen, just wish I could have seen the pushing the pan.
I worked on a coal strip job with a buddy who would get his D-9 G beside mine, we both had the u-blades.Talk about an improvised big push.
That double DD9 is a great piece of history. I love those 666 CAT scrapers. Many Thanks to Boston Power for a great video. God Bless to all.
Thanks so much for your kind words, glad you enjoyed the video, be sure to subscribe, new stuff always on the horizon!! Cheers
Mate of mine had one of these 4 wheels same size on the cab unit and a huge dozer blade .
Absolutely awesome machine 🙂🙂
Might've been an 830 Cat. They had a tilt blade and a 7 yard pan hookup. Or it might've been just a Cat rubber tired dozer!
I sat here watching, shaking my head with a smile on my face. Boy Howdy you did a superb job on the double9 as well as everything else. I thought the B.P.C. decals were nifty too! Glad everything is settling down and all is as it should be. I worked on a dam job that had single 9 pushers and TS & S Euclid pans. Long time ago and my back and hindmost still hasn't gotten over it. Got to go run the 5-K some but will be thinking about the Double-9 and the Triple-6! Hi to the Mrs. and the folks and everybody else hanging about the diesel museum. Squeeze some juice out of Pops' beard for me! (Us'ns) here in the hills
Ahhh Lewie, I thought I would keep this video quiet, make it a Christmas surprise for you!! So glad to hear that you enjoyed it. Don't worry I do have your email and I will be replying, but you know how work and everything else gets in the way of life!!
Hope all is well you and the family?
Bostonpowercat Well my friend, you sure succeeded! I knew when you got re-settled back home there would be a dandy lurking around, and there sure was! What a combo. Mercy I dearly love the sound of those big bore/long stroke engines with a V-8 or V-12 thrown in for good measure.
Got done with the big job so am now just knocking around home and running the 5-K once in a while, enough to keep the kinks hammered out. I lay stiff odds you and your Sweetie are just like big-eyed younguns in a candy store, making home sweet home home sweet home. Maybe if everything works out one day when you go visit Beantown again you might swing down South for a day or 2.
We're all fine here for a couple of goofy people but we can blame that on our ancestors if we need to. You have a LARGE weekend and store the juice from Pops beard in a bomb-proof container. Don't want anything agrivating it and CHEERS 2 U ALL from (Us'ns) here on the semi-swamp
Lewie McNeely aaa
What a great job you have made of restoring these machines be nice to see them in action
+frankie657 Thanks very much for your comment, much appreciated 👍
massive and truly impressive, thank you stacks
in great functional shape, it appears
SUPER‼️
Keep in mind guys that that particular Cat scraper was I believe the largest ever,that double D9 outfit is and was insane, wicked video guys, thanks
You are THE only one Carl well done, I am very proud to meet you.Very nice video Rupert as always.
Thank you for the kind words, glad you enjoyed. I hope you are well?
Thanks for the fill-in on the multiple unit control,on those D9's! Actually that's straight out of the Baldwin Locomotive Works playbook,as they also used a pneumatic system on their engines! Later,they used the far more common EP,that everyone else used! [EP=Electro-pneumatic],Applied to EMD,and Alco,plus Lima! Thanks for a VERY impressive machine(s),and a beautiful restoration! Wow,!! Thanks again! 😊 💯💯💯💯💯💢💢💢💢💢
@Robert Huron,Thankyou for your comments,and your information,you can learn something new every day.Cheers.👍
Very well done video of historic CAT machinery! One of the quality aspects of this 74 thousand + viewed video is the nearly one hundred swell comments from all your friends and admirers!
Thank you so much 👍 It's the great comments that make it all worth while, we haven't monetised our channel so we don't make any money from it.
Thanks for the comment
Holy cow!!! I'm surprised how well you can navigate this beast!!!
You came within inches of the gate while backing up just before going to black and white.
Very nice to see a competent, skilled operator !
Thanks very much, much appreciated 👍👍
God just imagine prepping this beautiful beast every morning.
Worked in Ca and we had a spread of 20 of these scrapers to start every morning. No double 9 but we had plenty of pushing power D9's H & G eventually progressed in to D9L's somewhere on the spread they always had an HD 41 Fat Alice. Miss it every day!
Ah the summer time how we miss you. Great stuff show more thanks.
Yes I wish it was summer time now that's for sure and not all this constant rain! Glad you enjoyed 👍
I got the chance to see this setup in action back in the late '70s when they were building the interstate hiway about 70-80 miles west of my home. So cool, it influenced my decision to get into construction.
with that much power the scraper could make such a deep cut it was astounding!!
We would loved to have seen this setup doing a full days work!!
This is just pour Cat Power Porn. All your machines look amazing restored to there former glory and I dont think iv ever seen a DD9/Quad-Trac before until iv watch your videos. Please keep up your amazing work :D
+farmertrg Than you so much for your nice comment, comments like this make it worth while putting videos up as we don't get anything for it. Glad you enjoyed, cheers 👍
Wow that's cool I live in telford shropshire I also drive dozers and use to work for uk coal on a d9t and am fascinated by the older dozers like d9gs but I also love the farming too👍
Farming and Cat equipment is in our blood! The new D9s are all ok, but we really love the G, for us it's just "classic Cat"
Good to see you watching the videos 👍
Nice Job !! Keep up the good work !! Thanks for all the effort you and your crew put into making this happen !!
Than you so much, comments like this make it all worth while 👍
That is some cool gear you have, I would love to come spend time there just to check it all out. Excellent Video, keep them coming mate
Thanks very much, really appreciated, will hopefully have a new video on the go pretty soon, the weather has picked up nicely so it makes it easier to get stuff out and started without making a mess everywhere!
Thx for that info on the cylinder ; the sound of those 9s is music to my ears. Started as a Swamper for my Dad when I was about 10 on a D8 14A with a Johnson bar. I would sit there all day on the Cat watching my Dad build road just so I could start the Cat with the pup motor in the morning ; sometimes a can of beans off the manifold being all tarped in in -20 weather and eventually getting to fuel the Cat at night. Thx BPC.
You have a lovely set of Cat d 9 Gs good on you they are a pleasure to look at the engines are running like new actually the dozers look like new i hope that in times to come they will be well looked after as these lasies need looking after and should be preserved if at all possible into the future thank you for the video all the best greetings from Ireland
Hello to Ireland from Wales!!! Yes we are certainly looking after them, it took a lot of time and effort to get them to where they are now so we don't want it to go to waste.
Thanks for your kind words 👍
Can't belive there's a double d9 here in Blighty love it wish I could see it live
Where are you based? Yes they are in good old Blighty 😁😁 the only running set outside of the States we believe!!
This brings memories!
A skilled operator nicely works a big machine. D9 is a bulldozer of our yearning, but D11 is also wonderful. Thank you from Japan.
+sitatan👍Glad you like it.Cheers.
d 9 lo mejor
Love my big old cats nothing like them I have run a d8 cat 😆
Nice job. I was hoping for a scrape, but I guess you were worried about breaking through to the earths core! Cheers.
Lol yes very true 😁
Maybe one day we may get some footage of it doing some proper work!
Cheers 👍
cdnpont llllllll
now that's something you don't see everyday, good video, like to see that working, if you can afford the fuel bill lol
When these were built fuel was only $,20 a gallon. lol
I'm sure just making a video this length gets expensive. Especially if moving any of this stuff over the road is involved. Fuel, insurance and the crew to make it all happen adds up fast. Its not an easy game to play but thanks for playing it. No dam PCM or security codes will ever stop these from burning diesel. Simple is still just fine for me.
@Mike Tee,thanks for your comments ,much appreciated.Cheers.
That is alot of machinery , great video !
Thank you 👍
WOW! that is TONS of power!!!
+bobo caterpillar Cheers, it's a fair bit especially considering it's from the 1960's !! 👍👍
Nice way to put an operator out of a job. Way to go CAT.
+greg4164,hey muppet!,it was for a magazine photo shoot!,it’s not being worked!,think before you speak!.
I think Gregg was referring to the machine itself putting an operator out of work. Not you at Boston powercat.
I LUV THEM GOOD JOB
Howdy Boston power It's great to see Your equipment. I ran Hvy Equip For 30 yrs D9 PushCat was my favorite machine of all hope to see more Thanks Leon
+scooterlh78 Thanks for a great comment, glad you enjoyed the video, have a look at some of ours if you like the old kit!! We will definitely be doing some more videos in the future, we have just fitted a cable control unit and blade to our D8-8R so will probably getting some footage of that together once the weather picks up here.
Cheers 👍
Why 2 units put together?? Super cool
Just not sure why. Thx
Great stuff ‼️👊
Awesome. very impressive. From the days when muck shifting meant brute horse power. This the first time I've seen one of these DD9 set ups where the rear tractor appears to be steering independently, rather than just being dragged.
+Mick B, Thankyou glad you enjoyed the video ,yes she is surprising manuverable for a big bit of kit ,you may be aware but you have the ability just to steer the rear tractor only if you only want to make fine adjustments to the turning.Cheers
Neat video on machines I always enjoyed watching. But, the video also showed how these machines can tear up a good road.
@J Armstrong ,cheers,yes you are spot on ,they only come out for a trot about in the summer as they tear everything up!👍
I still think about you knotheads even though you haven't posted anything in years. I realize lots have happened. Just want to know I'm still here. CHEERS and Best Wishes from The Hillbillies!
@Lewie Mc Neely ,Hi great to hear from you,yes things change and we have not posted in years,thing is my bro Rupert used to do all the film side of things and me the spanner’s ,he has a little time now with a wife and youngster!,but I’m still spannering,I know Rupe used to message you regularly ,we have some pics on Instagram if you look us up,.Im busy when not working restoring an old D8 2u pipe layer,then got a real nice D8 13a “pusher” to build up.
Cheers Karl.👍
@@Bostonpowercat WOW and Double WOW! I can't BELIEVE it! HI, Karl! This is just TOO good! GLAD to hear from someone with the old kitty with indigestion again! That's what I always got your brother with. He vanished right after the wedding which I thought he would and that was not really a surprise. That usually happens when that happens, for a while at least but here comes the dependents/tax write-offs or children and things always change drastically after that. 3 stages; single, married and with kid(s). PLEASE give him and his my best and I've thought of yall a LOT since the wedded bliss set in! Also the folks, even though a lot of time has passed and also a lot of friends along the way. We just celebrated our 19th anniversary so things are still looking up! Sounds like you have a lot of job security too. Seems like Rupert had just landed a job himself around wedding time. I finally had to quit because of gout not leaving me alone but being at home is NICE! I still burn some diesel when I can but it doesn't happen much BUT I mow enough grass to offset it somewhat. And it was GPOOD to see the Triple-^ and Double-9 again. We can email too. Thanks again Karl and God Bless!
I need a cigarette after watching this and I don't even smoke.
Buster Petersons neatest design if u ask me! My Buddy Glen has A 660 and a few 9s but not the "DD' very COOL! I just saw the real one Duane Doyle had restored and what a machine!!!!
+Jdigger4130 Yes your right, an outstanding piece of engineering from Buster Peterson, and so advanced for the era and technology available at the time!! I have seen a video of Duane Doyle's Quad an it looks very impressive, a superb job has been done.
Thanks for the comment 👍
Beautiful, I'd love to drive a Cat D8 one day.
Thank you 👍
Ooooh, I would love to see that set go and take a bite out of the local clay :o)
+teamidris Lol yeah that would be nice to see it make a cut 👍
+teamidris Lol yeah that would be nice to see it make a cut 👍
Earth shakers.
These tractors were built at Peterson Tractor in San Leandro CA by the late Howard Peterson. Peterson Tractor built quite a few incredible tractors they also built two D-9’s side by side.
@Don Dahl👌💪👍
great job keep up the good work. this was like a mini Christmas present. Merry Christmas
+mog5858 Merry Christmas to you sir as well, thank you for your kind words, glad you enjoyed the video 👍
Back in the mechanical control era it's that would have taken a bit of engineering to get the steering clutches and brakes to work together. Beautiful pieces!
@Matt Berg ,yes it was hard enough building that set up from scratch using all the Cat components and getting it to operate ,but some incredible engineering to design and build Quad 9s by the legendary “Buster Peterson”.👍
As an old Catskinner I'm guessing that front cylinder on that rear 9 is to lift the front end when you're backing up to eliminate drag. What I find amusing is the push block on rear one meaning you could have 4 9s pushing together.
+Nelson G,that cylinder is called a weight transfer cylinder ,which as the name implies gives the operator the ability to shift weight to the front or rear tractor to help traction,also when left in the float position it acts as as a shock absorber when travelling over rough ground,and is used to lift the drawbar when uncoupling.Cheers.
Nice video Rupert, well done Karl, all that hard work has payed off. Have a good Christmas, see you in the new year regards Martyn
+james bolem Thank you 👍
It must take a bunch of HP just to move the machines themselves, thanks nice vid.
Thank you, glad you enjoyed 👍
Nothing like a old big cat running 😁
Hello ,are you really from near Boston, U,k!? You should have one of your home town machines too! ;-)) An RB would be also fun filling an athey dump trailer behind the 830mb 😊
Thanks for keeping them alive... they look great!
Thanks, glad you enjoyed the video 👍
Now that’s some pushing power
Wonder how much stuff he ran over before he learned to drive that thing?
That 😺 is bigger than my old house 🏡.
party is on work like a dream
never enough power!!! men and toys
Really like the cat!
Cheers 👍
When I was a kid I remember seeing a huge tractor at my uncle's farm in Montana(late 80s) , it was the biggest vehicle my young eyes had ever seen. Years later after he passed I saw some pictures of the farm. And there it was in the background it was the tractor from a 666(or very similar scraper) I wish I had the picture of it(I'd really like several pics of it) but those good old boys had that big 2wd monster pulling plows in Montana. And who knows what else they used it for!
@Alex Wrench,that would have been an awesome sight seeing one of those girls as a farm tractor !,they were certainly huge! back in the day and there would be very few tractors today to match the 666 size and power!.Great story thanks for sharing.Cheers.
A 700hp D10 wouild have no problem push loading the 666.After nearly 40 years the Caterpillar elevated drive sprocket has proven its self
+generationll Yes a D10 would no doubt push load the 666 and probably better than the Quad, but it still wouldn't have as much traction as the Quad purely because it only has 2 tracks not 4. There is nothing wrong with the high drive system and it definitely has proved itself of the years your right, but here at Bostonpowercat we are all about the classic Cats most of them being pony start and no cab, never mind in seat starting and high drives, but that's just personal preference :-)
OH yes.
Hi, Bostonpowercat.
So you've gottem finished and ready 'for war'. GREAT stuff. They are lookin' good. Thanks for sharing.
May you have a happy and prosperous 2017.
Just my 0.02.
You have a wonderful day. Best wishes. Deas Plant.
+Deas Plant Thanks for your great comment 👍
Yes finally all finished and done, even though we have only just put the video up we took it back in the summer when the sun was out, but had been waiting on a new laptop to do the editing.
We hope you have a great and prosperous 2017 as well.
All the best Bostonpowercat
+Deas Plant Thanks for your great comment 👍
Yes finally all finished and done, even though we have only just put the video up we took it back in the summer when the sun was out, but had been waiting on a new laptop to do the editing.
We hope you have a great and prosperous 2017 as well.
All the best Bostonpowercat
Deas Plant. mowers
Nice driving captain
Thanks 😄
If I remember the two D-9 set up came from a man who was related to LeTourneau and I think he worked for either a CAT dealer or a construction co. If I remember correctly the name of the co. or person was Peterson.
@Dp.oennis Maurer,your memory is pretty good!,the chap who invented the Quad9 was called “Buster Peterson”,the brother of the founder of Peterson Tractors Howard Peterson.It was Buster that use to work for Le Tourneau before he joined up with his brother.
If you are interested in Cat special products that Buster invented and Peterson history there is a book called “the first sixty years”written by the grand daughter of Howard Peterson a lady called Eileen Graften,she has just completed anther history book to celebrate the 80 years of the Co ,which goes to the printers next week!,so will be looking out for that one myself👍
Love to hear them on a real hard push! 😍
I think if they hooked a heavy enough load to Max out the drawbar, the earth would get pulled out of orbit! 😂
The stuff of wet dreams! And the Quad-track has a push point as well! What would need that much pushing!
I think its just plain wrong, for one man to have so much fun, if I sound jealous, it's cos I am. Hahaha.
Great videos, bud, keep 'em coming, absolutely love this stuff.
@Roger Ferris ,Thankyou for your comments ,hopefully when the weather gets warmer we be back out playing again!,👍
Maybe you could do a video of how the controls work on the double 9. Like, when you turn left, what does the rear tractor do? Opposite clutch and brake? Is it hydraulic? What does the ram on the nose of B do?
I really have A LOT of questions!
Super nice job on the fleet and the videos!
@Travis Null,hi that’s a good idea ,hopefully get some filming done in the spring.Any questions you have just message me and will explain .Cheers👍
Great videos. I really appreciate you sharing these with us. But how can you afford to do the restorations?
Great video, I've never seen this, nice work. Power management, rpm sync, how do you achieve this? This is really cool! Thank you!👍
Yes it certainly was a feat of engineering especially for the 1960's !!
Cheers 👍
Bryan Haugen h
We like lots!
Glad you have enjoyed, thank you 😁😁👍👍
That's cool. How do you refuse that coming at you. You don't!! lol
Lol yes very true 😁
love the videos! Can't go wrong with watching some old CAT'S. What camera do you use? i love the quality.
+Schneids15 Thanks very much, glad you have enjoyed the videos 👍 as for what camera I use some of the older ones were taken with a Canon 60D and the newer ones have been take with a Canon 80D and also an iPhone 6 Plus. The Canon 80D is great for movies with the touch screen and the iPhone image stabilisation is amazing hand held. Hope that helps, cheers
Nice! Thank you! I currently have an action camera it is great for outside but inside not that good. Might be something for me to look into! Keep up the good videos!
Do you operate the rear dozer separate from the front dozer or move it like a trailer with the front doze r?
The rear dozer is like a trailer with the front dozer, you can't operate the rear dozer on its own.
Beautiful set of machines! Caterpillar dealer tech here and I had a few chances to work on the D9G's and the 583 Pipelayers. A couple of questions, Does the rear unit have some sort of an open differential to steer it by and the front unit drag it around like a trailer, or does it have the traditional clutch packs like the front unit does? Also does the hydraulic cylinder that attaches the rear unit to the push bar have a special purpose like balancing the front unit or is it to make detaching the machine for transport easier? I think that I could see separate controls for the rear tractor, is it able to be ran on its own or does it have to have the front tractor there in order to get it to operate properly. Thank you for taking the time to keep this old iron going? Nothing like hearing the old engines still purr except to have two of them going for the full effect!!
+Matt Lee ,thanks for the interest ,the rear tractor still uses its original steering clutches/brakes,but they turn in a jackknifing movement,to make a turn when right front clutch/brake applied then symultaniously the rear left clutch /brake is applied,so they turn in an “arc fashion”,you have the ability to use only the rear tractor to turn left/right for “fine turns”.
The hydraulic cylinder is called a “weight transfer cylinder”,and does what is ses,by increasing traction to front/rear tractor as required,when in the float position which it is mainly used in it acts as a shock absorber over rough ground.And yes it is helpful when you have couple /uncouple them.
This particular setup only has the front control platform which was the majority in most Quads,but some of the first few built by “Buster Peterson “from Peterson tractors CA,had duel control platforms ,which meant they could be separated and moved independently,this is something that I would like to add to ours if I can find a second control platform anywhere?.
Thanks for the information on such a unique machine. Buster Peterson must have been a great engineer/mad scientist as I think that he had a hand in making the Siamese D8 and D9 side by side dozers as well. Sounds like a great individual that I would have loved to sit down for a few beers with. Thanks for restoring and maintaining his work. I look forward to seeing some video of you guys scratching the paint off of this one and the 666 scraper. Got you subscribed and look forward to your videos. Is there any way you could share any information on Mr Peterson in another video?
+Matt Lee,we have been recently in contact with a lady of the name Eileen Grafton ,who is granddaughter to Howard Peterson the founder of Peterson tractors and brother of “Buster “,she is presently collecting data on Busters products ect ready to launch her second book on the company for its 80th year,if you can get hold of her first book called “the first sixty years” it is certainly worth reading as it gives a lot of details on “Buster”and all his custom products.
You are certainly correct,he was an outstanding engineer in his time,and was responsible for helping to keep Caterpillar ahead of its competitors!.
Do you guys still use the pony motors or did you go direct electric conversion? And it is really cool to see and hear the old D353's running again,I miss that sound.
We still use the pony motors, electric start is for wimps 😁😁😁
weary compliment!!
molto bello e interessante
+leore leore Grazie mille! Lo appezzo molto!
Fucking awesome, juhaptergee
Dear crew: I have never seen this type of coupling between two dozers. How do you synchronize these engines, steering etc? What a beautiful restauration.... Good luck!
twancol,Thankyou for your comments ,it’s is called a Caterpillar quad trac or later known as a Cat DD9G,there were only very few built and only a handful surviving today.In short basically all normal controll leavers/pedals ect removed and replaced with air chambers,and air control valves,with air controll carried to the rear tractor in an umbilical of 16 hoses.Syncrinizing engine speeds is not a major issue due to the power shift transmission absorbing any differences,and infact their are two throttle pedals to provide independent power to front/rear tractors when conditions require it.
Cheers👍
Cat is Cat!
Got to love Cat 👍
Just read previous comments, thanks
I know its a restore with fantastic paint but I secretly did want to see it shove the scraper while the pan drops :) might scuff your lawn though.
Lol yes a very good point 😀 We need a bit more space, but it would be nice to do a load or 2 with the setup, you never know it maybe a future video so make sure you are subscribed!!
Great restoration-I have been around for 75-years but never saw anything like these monsters. I lived close to where a (cloverleaf) was being built on Interstate 65 in Alabama and I watched them work every day during the summer. It was in the mid-1950's and I saw some big scrapers. Some had 4-wheel tractors, and some had 2-wheel tractors, but none were as big as what you have. Do you have pictures of the restoration work? I looked for your web site and it said expired. 🤷
@Tmcn1899,Thankyou for your comments,yes it was certainly a lot of work getting that old iron together,we made the front covers with articles in the “Classic plant “magazine which was a uk published magazine by Kelsey publishing ,and also the front covers with articles in two of the Caterpillar club (ACMOC) magazines from the states .These have details of the restoration.
We have also just made the pages of “Peterson Cat” latest book published by their historian Eileen Grafton called “85 years and still going strong”.
Cheers.
I just noticed the blade arms are on the inside of the tracks not mounted on the outside like most are today!!
@Burt Brooks,yes for a couple of reasons as these blades are specifically for push loading scrapers so the blade is narrow to fit in the cut that the scraper makes,and the inside push arms were designed so that they fit on trunions atached to a heavy duty belly guard and inturn bolted to the chassis ,which removes all the stresses on the final drives which occur on conventional blade set up.Cheers.
@@Bostonpowercat I’m a dozer geek lol!!! I really appreciate you taking the time to explain 👊 all three pieces are just awesome, I love that old iron and most of all the old style C emblem cat used during that time👍👍 thanks again for sharing your videos I really enjoy them as well as my dad too, we have been in the dirt business for 50 years like most of the rest of us dirt nerds we like looking at that old equipment
@Burt Brooks,it’s great that we are like minded and love the old iron ,the old Cat gear was so well made it’s nice to try and keep them alive .
Many thanks for your nice comments .
Cheers👍
I changed better looking tracks than those on the front cat. I worked for kewit in 71. We had a pair of quads pushing 651b's. That was the first time I saw the alligator master link.
@Cbmech,ey you must have had plenty of dollars to waste!lol.Actually got a new set of chains sitting for her,but she don’t do any work but will get em on when I get some of the other projects done.Do you have any pictures of those Quads ,it’s a well known Co you worked for who undertook some of the biggest projects back in the day along with S J Groves.We got a couple ex Groves 666s,and an nice old gent Arthur wickes who worked for them sent us some old pictures of their quads.Great to hear from you.Cheers👍
@@Bostonpowercat the grousers looked better but pins and bushings had about half an inch of play .
Kewit didn't bother to turn pins and bushings on a quad. They are murder on tracks.
I never took any pictures, wish I had. The was the last stretch of interstate 90 out by davenport wa . We had 7.5 million yards of basalt rock to move. Drill it, shoot it, rip it and move it with a fleet of 13 651Bs. We had a couple of d9gs with the new parellelagram ripper and a AC hd 41(what a pile of junk).
Very interesting nostalgic video, thanks. 👍
As a side note , one of the scrapers, on a previous job had argued right of way with a train and kinda won. 35,000 dollars later it was back in the dirt . It derailed 4 engines and 14 cars , about 4 million dollars in freight damage in the first 2 cars. The operator had a heart attack and dropped the cutting edge right between the rails with a full load , and Kewit put side boards on the bowl .
The cushion hitch was always a problem though , we couldn't seem to the adjustments quite right.
@Cbmech,that was an expensive accident! ,how many sets of quads did kewit run back then?
@@Bostonpowercat I'm not sure how many they had but I know that they had at least one on every scraper spread . It was all about yards per man hour . Our dirt boss decided to push with a quad and the HD 41, which worked well until they ripped the belly out of one of the 651s . Luckily Cats regional warehouse was about 90 miles away in Spokane .
I just start watching your videos two days ago 1 19 22 made a few comments on Operating all 3of them the quads and the double-barreled. I feel sorry all the operators that couldn't run a quad in a cut!!! I operated mine at Anaconda Copper mine in Green Valley Arizona and I sure like to know where you're at and if I could come and Operated one , one more time if I could make it up to the seat , some body said there back still hurts today, he must have been on 660 they were rough righting ? Or it had a bad seat...😭😭 jk
@James Keene ,Hi that’s great information Thankyou ,I have read about the Anaconda mine and the Quad9 on the web a few times,do you have any photos of your old Quad 9?,The equipment for ours ,ball ,hitch, controll platform ect,ect,came from a well known Company from Selma Ca,called “Colin Co”,later called “Agristruction “it was all from their “Super Ripper” set up which is published in many Caterpillar books.
If ever you over this way on holiday you would be very welcome to get in the seat ,would be great to have a proper operator on board .I built them up from two normal 66As from scratch ,a lot of work but a great accomplishment I think in keeping some rare history alive.
Cheers👍
I used to haul these and ran them to back in the 60's & 70's. Our D9's push cat's had a completely different Push Blade on them back then. We had a narrow push Soft Touch (or Cushioned pusher) Where you have a hole lot wider Blade on yours. And, we had the Single Deep Rippers on the back of our's. I guess ours was just ordered differently from Cat.
Danny Walker 9o9
Danny Walker 9
Looks like you have some military hardware as well - or are my eyes deceiving me. Never seen anything like these before - I would have thought that 'ball joint' connection looked a bit of a weak point. How do the engines stay in 'Sync' when "travelling light" without the front one pulling or the rear one pushing the other.?
+Christopher Lovelock Hi and yes your spot on there is some military equipment kicking around, if it's not Cat then its military for us!! The ball joint is very solid and bolts on under the rear tractor, I know what you mean, but that thing isn't shifting that's for sure!! As for staying in "sync" they are linked with air controls between the 2 Tractors so anything you do on the front one is reciprocated in the rear one. We will hopefully get a new video together explaining how it all works 👍
Thanks for the comment
super video keep emailing coming
Cheers 👍
New video up today!!
They used quad tracks on the Oroville dam
Didn't Peterson build at least a prototype of a Quad D9 with the tractors side by side rather than front and back? I know they worked on such a design, but I don't know if one was actually built and operated.
Amazing video. Any chance of a video talk through of the controls on the master machine? Heard of these (and the side by side DxD) but never seen one running.
@Ruaraidh Walker,yes in the near future I will try and get a video up on the controls and how it operates .Thanks👍
@@Bostonpowercat Great stuff!! Are you guys still working? Website seems to be down.
thanks very good ,gas this combination ever been utilized
Hi, this combination as it stands hasn't been utilised as we just don't have the space, but originally this is how they were used day in day out moving serious amounts of earth on massive highway projects.
Cheers 👍
Boy oh boy the wife is going to be pissed messing up the lawn
If that's not awesome, I don't know what is!!! :)
@crazyfvck💪💪👍👍
You either love this, or you are wrong.
+Mark Skinner👌👍
Does the rear d9 actively turn or does the front handle that for both units?
@cthunter41,yes the rear D9 turns,the unit turns in a “jack knife”movement ,if turning right the front tractor turns right but the rear turns left then they follow through an “arc” movement .you can control just the rear tractor to turn left or right and stop all control to front tractor which gives you “minor”turns.👍
How come you didn't push it. I just got a hitch for a DD that I'm gonna start building this fall. I'm gonna work them though pushing 621's
@B L ,where did you manage to find the hitch?,have you got all the controll gear as well ?,
I would be interested in a controll/seat platform for the rear tractor if you come across one.
We don’t work any of the cats really just some of the old D8s ,just collect and restore them
Cheers.
@@Bostonpowercat I was down in Texas looking at a G and I thought was I was seeing was it. It sure was. I only have the hitch. Thats all that was there. The old man told me the tractors were scrapped in the 80's. I can't understand it.
That’s great ,you had a real lucky find ,at least that’s the most important part saved,not too many Quads about now.If you get a look at Peterson Cats latest book “85 years and still going strong”they have a chapter all about Quad 9s and we were very lucky to have ours included.
I know you will need the controll equipment yourself ,but if you do manage to find a controll platform on your hunt for parts that you don’t require please let me know.
If you need any help regarding pictures/details when getting them together give me a shout ,I’m not an expert but I did build ours up from two basic tractors.
Cheers👍
@@Bostonpowercat yeah thanks. I'm gonna probably have a lot of questions. Did you build yours or are they factory DD tractors? I'm gonna push scrapers with mine when i get it done. This coming winter is where all my time will be spent.
@B L ,no they weren’t factory DD ,I built them ,you won’t have much time for anything else!,lol,it’s a fair amount of work,but certainly worth it,and you will have the fun of working yours.
Yes any help I can give you ,no problem ,if you are on “what’s app” on you phone ,then when you ready I can send you plenty of photos,drawings ect.
You need to get hunting for all the air controll gear and seat platforms now👍
Please keep the old iron rolling!
Cheers, takes a fair bit of effort, but we are getting there slowly!!
Nice video. Do you know what those D9 tractors weigh as they stand there..? On the last tractor, is that a massive counter weight on the back of it? Thanks!
It’s a push bar so another dozer can help push the scraper if need arises.
Ran 666 for s j groves & sons in 1970 & 71 great scraper. 10:54
@marthawest2802,hi any chance you got any photos of the 666’s you ran for SJG ?
Cheers.