1947 Caterpillar D4 (35HP)

Great video mate. Iv got a D4 30 A . They were much like the 7 U model but before the D 4 C model. It was made in Mexico in 1954 and less than a hundred were bought to Australia. Surprising how many little changes were made during a production run of a series. Ours dropped a tooth on the bullwheel in the final drives about 40 years ago and it split the whole backend in half and it took us nearly five years before we eventually found another that had the same pattern bellhousing. They look the same but they are just a little bit wider and won't match up with any of the previous serial numbered versions. Iv just spent the last two days welding and turning down all of the precombustion chambers on her, one had a pin hole in it and was blowing back thru the radiator. She had been sitting for nearly 15 years without running and all I did was put some fuel in the pony motor, it fired after turning over about two times and let the main motor spin for about a minute, cracked the throttle open and she fired straight away. She also has a genuine Cat blade, Cat tree arm and Cat three shank rippers. Spent hundreds and hundreds of hours on her from when I was seven years old up until she was parked up all those years ago. One time back in the mid seventies, my dad started the pilot motor, it fired up and the crankshaft snapped right where the flywheel bolts on. He reckons it ricocheted around the floor pedals then shot up over the tracks and off into the scrub. I also own a 17A D7. Without a doubt the nicest sounding motor Cats have ever made. 14 litre, 4 cylinder with a whopping great turbo charger feeding it air that you can hear whistle from two miles away. She also dropped a tooth on her bullwheel in her final drives and is now waiting for me to put her back together with another bullwheel and intermediate pinion which also got chewed. Was lucky to have found the broken tooth after changing the oils in the finals, stuck my finger up in the drain hole to see if there were any metal filings left over and that's when I felt something that moved. She hadn't been making any clicks or clunks or whining noises at all and had probably been like it for years before I bought it. It's motor was rebuilt in 1973 and it was parked in an old hayshed soon after and has less than 200 hours on it. It also has a cat blade but a three shank ripper set up made by Stanton. Very heavy duty and very heavy. All up weight she goes around 27 tonnes. She's a big, big heavy hunk of women.

73 years young & still running great. Go Caterpillar. .

In 1965 my parents owned a home adjacent to the right-of-way for the new Interstate Highway 94. Hours of entertainment for us small boys when they constructed this stretch of freeway. Saw lots of Cat "crawler tractors" pulling towed scrapers!! The smoke and noise from them then is nothing like it today! ALL the equipment barked loudly and left huge clouds of black smoke then!

The very first Dozer I ever had a serious try on, was one of these. ( back in 1964.) Been a very long time since I saw one of these double ended ploughs...my late grandfather used to tow one behind his steel wheeled Fordson tractor.

I used to sit on the oil can too when I was a little boy. Later I operated long hours with no pay because I loved it and grandpa did too.

It’s good to see that old equipment being put to use. Thanks for sharing.

Спасибо за видео, я, и мой отец работали на т 100 м аналог замечательная техника, очень надежное

curto de mais maquinas antigas gostei muito deste arado no BRASIL E CONHECIDO

looks like a winch plow, like they use for towing with two traction engines, one each side of the field.

...I earned an AAS degree in Diesel Mechanics a little over 40 years ago...our school had a matched set of manual clutch Cats...D2...D4...D6...D8...had a lot of fun working on and playing with those old Cats...

Ну ребята вы молодцы шедевр восстановили, удачи в жизни вам

قبل شكد يتعب الفلاح في الزراعه هساع المكائن حديثه وجراراة وتلكتراة حديثه وعملقه الزمن والانان يتطور بس حلو نتذكر ايام زمان الاحراثه صعبه شكرا ذكراة جميل

Thats got a hell of knock in the engine!

What a beautiful machine!!!

Hi, Folks. Sorry but I don't think it is a 1941 model. The larger round outer track frame bearings came in with the 5T series D4 in 1945 and the air cleaner was moved from under the hood to being mounted on the back of the firewall in front of the operator like that one is with the later 6U - 7U series D4s in about 1947 - '48. Nice video of a great crawler though. Thanks for uploading it. Just my 0.02. You all have a wonderful day. Best wishes. Deas Plant.

Inprecionante isso que é capricho de saber cuidar de uma máquina dessa, parabéns 😎

Neat! 😉

Outstanding job and videos 👍👍👍👍👍👍🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸

5:10 ...made me smile!

Una joya mecánica""