CATERPILLAR TRACTOR D8 BULLDOZER POWERSHIFT TRANSMISSION PROMOTIONAL FILM 52514

[@byronsmith8967]

My Dad bought a brand new D-7E in 1964 with the 3 speed power-shift transmission. Everyone else in Southern Indiana doing custom work at that time was using standard shift transmission D-6's that had to be manually hand clutched, the direction lever changed, and another shift lever changed if you wanted to back up at a high rate of speed. No one in the area had a hydraulic tilt cylinder for the blade, but the new D-7E did. Clearing land, building farm ponds, and bulldozing fence rows was the order of the day. The D-7E could do probably 2-3 times the work of the smaller D-6's in a day, and Dad only charged $35 per hour, while the D-6 owners were charging $30 per hour. It didn't take long for the farmers of that era to figure out how much more you got for your money in hiring the D-7E to do your work. At first they all thought they were being robbed, but the D7 could push a tree over in one swipe, that took a D6 15.minutes to take out. The total price of a new D-7E in 1964 was $40,000.

[@meade4573]

Cool story, my dad has a 1964 D7E too. He didn't buy it new though. Do you happen to know the serial number? I'm curious as to how close the numbers are to one another.

[@byronsmith8967]

@@meade4573 No idea what the S/N was now. It had the Cat 4 cyl diesel you had to start with the pony motor though. It was a magnificent machine in its day.

[@meade4573]

@@byronsmith8967 Yeah, the D339 4 banger. You can hear the turbo from a mile off.

[@idessaoutlaw]

I have a 1968 D7E 48A118** Power Shiftt, Forestry Package, 4 HD Sweeps, Electric Start, & HD Winch.. It's a Cadillac compared to the Direct Drive tractors.. The smooth powerful D339 engine is music to my soul.. It makes the toughest jobs look easy.🥃😎👌

[@lembriggs1075]

Nothing better than a nice Marlboro while operating a well oiled machine like a 1960’s model 46A D8H in good working conditions with a well scoured blade.

[@silverdrillpickle7596]

No ROPS & operator smoking a cigarette! Heck yeah!!

[@JohnDoe-pv2iu]

I'm so old and smoke, that I didn't really notice that as out of place. It is funny now at the hospital, none of the Doctors walk in the room smoking. Times keep changing...

[@Parents_of_Twins]

Yeah the hell with living past 45. Cancer and limb lost is a good time had by none.

[@bucko60]

Ol' boy has that cig hanging out of his mouth at the end. Love it.

[@scottwski]

We had one of these old 46As with the land leveling outfit I worked for starting back in the early 70s. The torque converter used diesel fuel circulated from the fuel tank. On hot days when the Cat started running hot and the fuel tank was low, it helped to go to fuel wagon and fill the tank.

[@tyfrank3427]

The oil torque converters are much better. I think the first 3000 46As had diesel torque converters, and then they went to oil torque converters.

[@robertmorey4104]

Love the D8 and D9. Very innovative power transmission, even on old cable lift dozers. Great video, loved these machines as kid - still do.

[@63256325N]

Love films from the 50s. 😁 Thanks for posting. 👍

[@parexc07]

I loved my old 1966 Cat D8H 46A high Horse, I still remember the SN 46A13213

[@EloyManon]

I love it model..strong Iron

[@anibalbabilonia1867]

I love watching stuff like this! A great piece of history.

[@Craneman4100w]

Love the way the operator backs up without looking first.

[@wakeupslaveamerica]

Oh no! No hard hat, safety glasses, hearing protection, steel toed boots, stafty vest, R.O.P.S, flashing lights or seat belt!

[@lukestrawwalker]

LOL:) Yep back when people had BRAINS and knew well enough to stay well back from operating machinery... Later! OL J R :)

[@tyfrank3427]

As an operator of over 20 years, a trainer, and a foreman, I tell you, every operator starts backing up before they look back.

[@tyfrank3427]

@@wakeupslaveamerica And if you operate properly, in those conditions, except for ear plugs, you don't need any of that. You certainly don't need steel toed boots to operate, because there's nothing to hurt you. Same with a hard hat. Most of the D8Hs still in service have a ROPS, and often the top of the canopy is 3/8" plate. if something goes through that, the hard hat isn't going to save you. Our business has received awards for safety, and yet we are lax on PPE. Society has taken the wrong approach to safety. For example, a trick question is how many accidents have seat belts prevented? The answer is none. The only approach to safety is prevent the accident from happening to start with. That's a much better answer than using PPE and calling it safety. PPE is often used to give visible evidence to make things look good. There again, reflective vests may have a place, but if you are in the operators blind spot, they are not going to do you any good at all.

[@graham2631]

Makes sense anything there been run over already.

[@jamesanderton344]

Interesting split torque drive

[@jamesberlo4298]

Thanks for posting this, when I was a Kid I was obsessed on knowing how this worked.

[@mhoff5777]

I do remember when Caterpillar first came out with this 3 speed power shift.. Before that was the Johnson Bar, hand clutch and straight shift transmission..

[@MobinKhan-vr3el]

M Hoff D8k plantry open

[@tyfrank3427]

Actually the direct drive was an option on D8Hs and D8Ks until the end of production.

[@billmoran3812]

I first learned on the old clutch type transmission.

[@brunospolidori]

I loved this video, a piece of history!

[@richardc7721]

This Cat had a Pony motor for starting the main engine. It was a 2 cylinder gas engine that was an electric start, you used it to spin the big engine, when it was spinning fast enough you fed fuel it the main engine. This one also had a cable system instead of hydraulic for control of the blade and an oil bath air cleaner instead of paper. It was a dirty job servicing them.

[@tyfrank3427]

D8Hs all used dry type air cleaners. These resemble an oil bath but they are not. They have a cap on the bottom to catch dust, then above is a piece about 8" high full of whirlybirds to help separate more dust, and then comes one element. There's no safety element. We had a 1959 D8H and I ran it on jobs as recently as 2009. That year was extremely dusty, and I changed filters every 2 days.

[@stuartrussell8529]

love this era! born in the rong era!

[@wyattlarrick3246]

Wrong*

[@Mighty-Quinn]

Love these old ads! Whomever composed the music for this film knew what they were doing. I love it, wish I could find it somewhere.

[@warrenjones744]

The Cat power shift transmissions are brilliant and relatively easy to rebuild. Rugged is a bit modest. Idiot proof or as near as one can get is more like it. They can take a lot of abuse and keep going as long as there is oil in there.

[@sandleman3006]

nice film that ole hand didn't touch the decelerater once he throttled it a few times by hand.

[@bugmandu1]

That will kill a transmission.

[@robertjackson6932]

Wonderful video

[@EZ570]

notice: not a penny was to be spent on ROPS structures or even an umbrella to keep the equipment operator out of the blazing sun, or the pouring down rain, until government regulations required it.

[@AlwaysBored123]

Caterpillar probably selected an open station tractor for this video in order to provide an unobstructed view of the controls being operated. Not because they were too cheap to spring for an umbrella.

[@dexonaut666]

Jacobd123456 that and men doing these jobs back then weren't complete pussies like nowadays.

[@altheastortz8038]

EZ570 Now. The. EPA. Has. Made. Matters. Worse

[@jamesanderton344]

Operators were expected to keep their mouths shut and do what they were told...

[@aaronbenjamin8822]

@@jamesanderton344 BS

[@machineman532]

Nice video,thanks

[@magnatron7734]

Out of this world, great vid

[@gullreefclub]

Kinds of strange looking at a Dozer working without a rollover bar / cab.

[@robertjackson5966]

Great video

[@michaelhuppe5151]

Last of the honest to goodness Catskinners!! Everyone of them so deaf they can't hear themselves fart!!

[@JohnDoe-pv2iu]

And then came the Allison!

[@palindrome1959]

Nice!

[@Parents_of_Twins]

Who developed the powershift transmission first was it Caterpillar or International or someone else? We have an old Case 600 Terratrac that has powershift like system only you chose from a gear and then you can go forward or reverse in either high or low. You can have one track running in forward high and the other in reverse high. It's a really nice system. Also have a IH TD25 that has a powershift transmission. Not as familiar with that machine as Dad got it after I got married so outside of helping him rebuild the engine and put it in the machine I haven't driven it much, maybe 30-60 minutes.

[@Parents_of_Twins]

@@jackgee3200 Thank you very much for the information. I guess I need to find a schematic of the systems because I'm having an issue picturing how it works. I was thinking it was similar an automatic transmission in a car but am not sure.

[@Parents_of_Twins]

@@jackgee3200 Brake operated steering? You can use the brakes if you want but usually don't as you can put one side in reverse and the other in forward. You have high, low and neutral for for both tracks in forward and reverse. So if you really want to flip it around you can put one in high reverse and the other in high forward and it will turn on a dime. I'm almost positive it is the terramatic. The main issue we have had was with the left final sitting in the seat perspective. My dad had a new one cast and since then it has been fine. Prior to that had quite a lot issues. Great little machine although damn near impossible to find parts for which makes it kind of a pain. Really needs a new undercarriage at this point. I think some JD 450 stuff will fit though so I think dad has some of those parts from a friend who does undercarriage work for a living. Scrap dude took 6-8 practically new rollers he had for Dad's TD-25 on him a couple months. Dad was pretty steamy over that. Not sure how that's going to work out.

[@Parents_of_Twins]

@@jackgee3200 I have a TD-6 myself. The rollers and chains have the same dimensions as the Dresser/Dressta TD-7E according to my track manual so I was thinking about converting them over. As you said it's getting difficult to find parts for those machines. Dad and I rebuilt the DT-817 that's in his TD-25B and the gasket set alone was 2k and that was 20 years ago. I am planning on starting a small business doing lot clearing and driveways with the TD-6. So far I'm adding more projects than I'm finishing though. Curse of finding good deals :)

[@cybercat1531]

Is there an approximate date for this footage? I would also like to recommend that future footage uploaded on this channel include the footage date in the description, it would very useful to have for those searching for footage from a specific time period. :D

[@PeriscopeFilm]

When we know dates we post them. In this case we do not know the date the film was produced.

[@wailnshred]

The dozer looks like a D8H, I believe they came out 1958.

[@tyfrank3427]

The 46A series D8H came out in 1959. This film would produced in 1959-1960. The torque converter shown uses diesel fuel. This was troublesome and was replaced in 1961 with a new design that uses transmission oil. The improvement made the 46A series D8H the best selling D-8 to date and widely thought as the best D-8 Caterpillar ever produced.

[@tyfrank3427]

@@wailnshred They did come out in 1958, but the powershift variant came out in 1959.

[@wailnshred]

@@tyfrank3427 Okay, I knew it was somewhere around that time. Before I was born, lol.

[@mikewhipkey6863]

I wonder if it has satellite radio? Amazing how much Equipment has changed...

[@RFagricontracting]

Only got 6 cylinder radio 😂

[@robertmurdock9750]

Didn't some come with a cigarette or cigar lighter?

[@i_am_ironman3380]

"Good control, even when dumping a load"

[@LuisA7009]

Does anyone know which lubricant specifications are required for powershift? Especially for the torque converter...dificult to find.

[@heathbauerle2787]

I read that just use 30W for everything except the final drives that use 50W. I also read to use 10w for arctic conditions. Hope that helps.

[@tyfrank3427]

Very early powershift machines like this one have a fuel torque converter. My Dad and I have owned well over 20 D8Hs and Ks. The newer powershift models oil with the transmission, steering clutch compartments, and cross shaft. They oil together and hold 7 pails of oil. They use engine oil in the transmission. Here in Canada, we run 15W40 in the transmission, but if you live in a warmer climate, 30 is fine. The High Horsepower models use duo cone seals between the steering clutch compartments and the final drives. We use gear oil in the final drives along with STP or Lucas which prolongs the life of the final drives. On the low horsepower models, they use bellows seals which are prone to leakage, although some have been upgraded. Better use engine oil in the final drives on those, because eventually, the final drives will get filled to the level of the cross shaft. If gear oil gets into the transmission, the torque converter will overheat. We change the oils in the transmission and final drives every 1000 hours, and the engine oil every 100 hours. The direct drive models use the same oil. Hydraulics also use engine oil on the D8H, and will overheat with "hydraulic oil."

[@LuisA7009]

@@tyfrank3427 Thank you for the complete info Sir! Brazil is very hot and temperatures below 60F are rare. Usually above 80´s F...

[@tyfrank3427]

​@@LuisA7009 Then run 30 in everything. If the serial number is over 46A12885, (Yours may be a 68A) use gear oil in the final drives. We use 80W90, but 75W90 is better here. You would probably be all right with just 90 gear oil there. Also, I grease the universals between the transmission and torque every 100-200 hours, as well as the steering clutch levers and brake pedals. The fan and idler pulley should be greased every 100 hours and the rest of the machine should be greased daily. When servicing the transmission, There should be 2 filters in one long housing by the engine oil filter (s). Those are CAT 1R0741. There should be a magnetic screen under the transmission pump and another one either near the transmission oil cooler or under the seat, clean them thoroughly. When you do, you likely have to replace the o ring. Those are Cat 5F149. If those leak at all, they will prevent the pump from priming and they will cause you a lot of trouble. If you have an older model, there will be a transmission filter under the floorboard on the right side and one under the seat. Those are 1R719. The engine oil filters are most likely cartridge type. The part number of those is 1R0659. If it is equipped with a spin on, the part number is 1R0716, 2P4005, or the newer 1R1808 should also work. The final drives each have a filter and the part number of those is 1R0729. Finally, the fuel filters may either be spin on or cartridge type, and either way, 2 are used. the prat number for the cartridge type is 1R0724, and be sure to have a gasket handy when you replace those. The Spin ons are 1R0750. I hope that information helps you. Oh, and if it has the hydraulic tank on the fender, you can run 30 in that, engine oil is recommended and it uses the 1R0741 filter, same as the transmission. Also, if yours is the older model and you order the transmission and engine oil filters, don't mix them up. they appear to be identical, and they're exactly the same dimensions, but they are different part numbers for a reason.

[@macketh6985]

@@tyfrank3427 Same advice for a 1970 D7F Power Shift? Maintenance Manual states SAE 50 for Final Drives, but on inspection it appears they're filled with Gear Lube, most likely 75W90. Left side is leaking a tiny bit. Just getting familiar with my new toy. Located in Ontario Canada, not too concerned about the cold since I don't plan to run much in the winter months.

[@bennetfox]

Excellent film! I'll take three bulldozers. Do they come in grabber blue?

[@joshnabours9102]

It is interesting how flat the transmission is compared to car transmissions.

[@countdown2xstacy]

Back when the chrome was thick and the women were straight

[@brianmakoviney4521]

A cable blade dozer. The blade goes up way faster than hydraulic, but no down pressure, unless you add weight to the blade, like cutting open the top of the dirt blade, and filling the void with cement to give it some weight to dig in .

[@jpoppinga8417]

Kinda wondering why the cable dozers survived so long.

[@jifi-0178]

Is there any way to make the PF film numbers more transparent or even hidden (like closed captions can be turned on/off)? There were a few times I would have like to see something that was obscured by all this stuff blocking the view.

[@PeriscopeFilm]

Here's the issue: in the past we tried many different systems including placing our timer at the bottom corner of our videos. What happened? Unscrupulous KZbin users downloaded our vids, blew them up so the timer was not visible, and re-posted them as their own content. We had to use content control to have the videos removed and shut down these channels. It's hard enough work preserving these films and posting them, without having to deal with these kind of issues.

[@cat637d]

A light watermark would be less distracting, even without the timer would help!

[@michaelwills1926]

I don’t even notice the reel data, too busy appreciating the history on display.

[@kawscottyoung]

I think th stogie is cool

[@MrDejast]

No back-up beeper.

[@ethanutter7971]

The gear you use the most wears less

[@adjustablehammer3749]

Back when cat built proper kit and where on their a game they are just electrical shit now

[@tubulli]

Pathetic to see how american employers neclected the operators for decades. In Europe most machines had enclosed cabs already in the fifties

[@robertmurdock9750]

Who wants an enclosed cab! A brush cab is good when land clearing. In winter reverse the fan and it will keep you warm. The only time I ever wished I had an enclosed cab was when I would get into a hornet or yellow jacket nest. Last year I got into a killer bee hive, a cab would have been nice then. A cab is ugly, you can't hear the engine good, they are distractive, and you don't need to be listening to a radio while working.

[@Jacob_6420]

@@robertmurdock9750 about 99 percent of operators want a cab honestly. Every jobsite i go to daily just about every machine is cab except for the rental junk and that's because they get torn up to fast to matter.

[@icarustanovic3097]

A what? Tractor? Son you should get glasses. This is obviously a bulldozer.

[@jaredclawson1813]

Junk the new Ts, my bad they're junk already, bring back these dinosaurs. Cat skinners are getting few and far between.