1957, AEC Mandator Mk 3, ballast tractor, loading dragline, and journey to Newark. May 2007.
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- เผยแพร่เมื่อ 13 ก.ย. 2024
- YNN 724 is a purpose built ballast tractor, built in 1957 as a special build at AEC's for Westfield Transport Ltd; of Mansfield Notts; who used it for heavy low-loader work, and for transporting long textile machine up to 60 feet in length, rated by Westfield's as a 60 ton gross weight machine, it incorporating a 15 ton pull, Darlington power winch, and as a tractor it weighed 14 tons, and with a typical trailer weighing 12 tons as this one does giving around a 35 ton carrying capacity, a Lancashire steam boiler would be about the limit!
It was driven from new by my grandfather, for 14 years, my father was the drivers mate for a while, until he progressed onto is own lorry, and as a child I rode on the engine cover for a day out. After trying to buy it for five years from a guy who moved steam engines with it, I finally had it home, and after a five year restoration it was back on the road in 2001. The tractor is as exactly as it was when new, and I've tried to recreate the whole thing as it would have worked back in the day, including several typical trailers. This trailer is currently under going a full restoration, the dragline may be restored in the future, as you can see it's in a poor mechanical state.
As usual ear phones are recommended !
It's great to see an old girl like her working,hard to credit she does all that with only 150 horses
AEC 75 Hp. Good
150bhp.
She might be a bit smokey but the crane lorry at 3:57 is a beaut.
It was the first time on the road since it left the army which was probably in the early 1970's, soon cleared its throat.
In reply to R Richie !
Sorry for the delay in replying to you, but since Google + got old of this, I can't make head nor tail of it !
I can't tell you the torque output, but it wont be a lot, it only has the 5 gear's, but originally had an 7 to 1 diff ratio, only giving it a top speed of 29 mph, but making it capable of grossing at 60 tons.
Nice to see a wolf being safed
It's AEC's own 11-3 litre six cylinder diesel, rated at 150bhp, driving through their own 5 speed gearbox, and double reduction axle.
Not a lot of power compared with today's motors.
Thanks....drove an AEC eight wheeler in the early 70's with that 6 cylinder Diesel engine ...it was one of the smoothest I have ever driven..
Nice toppp
They little guy (ahem AEC ) sounds like a 760 but I know it's not.
The big AEC has a cooling fan that makes it sound like it has an intercooler lol.
AEC AV11.3, same displacement as the later AV690/691.
The 760 was a development of the AV691 which had liner problems so used thinner walled liners taking it out to 760 cubic inches, a very reliable engine when stood the right way up, maybe not so good horizontally. Ha.
691s get hot in heavy duty truck applications due to inadequate heat removal between cylinder liner and water jacket. 760 has thinner wall, making for better heat dissipation. 691 perfectly fine in much less stressed horizontal bus application and were very good there.
I have a story on how the 760's less 'meat' turned into a liability in a Swift bus here in Sydney.
Deanes Coaches bodied 10 ex stock Swift chassis back in 1980 and I heard they were several years old having been shipped from Durban South Africa in the 70s some time, no longer required there by an operator. They had been sitting unsold in Australia for many years before being bodied and suffered electrolysis of the water jacket from long term storage with coolant in them.
One unit in particular suffered badly and in 1984 they noticed coolant weeping fast while it was on shuttle duties in the snow a long way from it's Sydney bus depot. When they got it back, they rebuilt it before driving it back the 250 miles to do shuttle work only for the engine to fail altogether.
After dismantling this motor upon it's return to Sydney, they found the water jacket had been eaten completely away and only the cylinder liner was between the piston and water jacket!!
They ended up fitting an 11 litre MAN motor with Renk 3 speed transmission and it ran like this for many years and passed to two subsequent owners. The second of these owners changed it back to a 760 in the late 1990s from one of the other buses that had since been broken up for spares.
I have video of it going in 2005 with it's 760 and 5 speed Wilson gearbox clearly heard back in situ.
I may post it one day.
I worked as apprentice fitter at H M B C on Bell st Nottm when westfields were moving S A Monk knitting m/c's for export
You may well remember this scene then. Link th-cam.com/video/U0vmA4NYoTM/w-d-xo.html
There are quite a few Westfield video's on my channel.
Who was HMBC? I have some black and white picture of Westfield's loading there back in the 1970's, surrounded by terraced housing if memory serves.
What engine's in the Mandator? It's sounds gorgeous!
Setting AEC 75 Hp in boat Thailand
As above, what a fantastic sounding classic truck, not loud, not 'gruff' just 'sings along' with that sweet straight six.
As you mention it is approx 150 bhp from its 11 odd litre engine, do you have any idea how much torque it would be producing ( just interested against modern day tackle)?
It looks to be making light work of that drag line load!
Not being familiar with these, would it have 5 speeds + a splitter box type second lever in the cab for crawling/steep gradients etc?
Nice setup, do you have any problems with the prime mover spinning out on gravel or other loose material when pulling. I would think you have a bit of counter weight in the box for the drive axle.
+farmerphil Absolutely, the tractor weighs in at 6 and 3/4 tons on it own, I have about 4 tons of 40mm thick steel boiler plate in the body so it's now over 10 tons, which is OK for what I do with it (it's not that often there's a trailer connected).
When in service it was ballasted to it maximum legal weight on two axles being 14 tons.
that would give it enough traction to operate up to around 60 tons gross.
As well as traction the weight is also necessary for braking, as there is a tendency for the outfit to jack-knife under heavy braking if the trailer brakes are not up to scratch, having two pivot point opposed an artic having only one, and if using a dolly converter they are often un-braked.
The trailer looks handy to have, Is the tow dolly permanent to the trailer or will it detach. What kind of job is it to change out a inside flat tire. They look close to each other. Phil
+farmerphil Yes the fore-carriage is permanently attached, using a large steel ball and phosphor bronze cups.
Changing any of the inner tyres involves removing the boggie from the trailer to get the wheel off, the rears are easy, you have to do that to load from the rear anyway, but the fronts are another matter.
When I stripped it down the only way I could get the front ones out was like this.
Link= www.flickr.com/photos/75262259@N03/8033696469/
I was about to ask if the rear trailer wheels were detachable as I recall many years ago seeing a low-loader which had the rear wheels off, although it only had twin rear wheels.
Here you go. th-cam.com/video/IJISgUTWSow/w-d-xo.html
Didn’t the later Mandator have 240hp ?
This old girl is only 150bhp.The later tilt cabbed version was 220bhp, unless it was V8 powered then 247bhp, the final V8's were 270bhp.
Must have been a nightmare at 60 t gross, very surprised it even has the power to pull its own weight let alone a loaded trailer..
+Draxindustries1 A sentiment I share every time I get in it, but it did, and I've the evidence to prove it. It's not all about power the gearing is the key, Scammell's first 100 tonner (that's the load) only had a 87 bhp 4 cylinder petrol engine, although that was latter up-rated to a 112 bhp Gardner.
It didn't mater back then if it took a week to do a days work, as long as it got done !
This is grossing at 34 tons here, it weighs 22 tons empty with the trailer.
I once pulled a 22 tonne recovery truck to bump start it with a series 2 land rover. It's not all about power, gearing is just as important.
Tutte le parole sono inutili perciò mi limito a farti i complimenti!
+Elio Vivia Grazie.
All it needs is just a little paint .. Did I see a Nuclear Power Plant in the background ?
I think it may need a little more work than that Mike, anyway I've replaced it with a workable machine now (there are some videos on my channel of it). It was the remnants of a coal-fired power station now gone. click on the link to see the end of it. Thanks for viewing. www.flickr.com/photos/75262259@N03/7574862270
I have a 1955 Northwest Model 6 and a 1967 Koering 405 the NW weighs 90,000 I use 55' of boom and a 1.5 yard bucket the Murphey diesel is 1103 Cubic inches burns 3 gallons of fuel per hour .. a modern day hydraulic exactor burns 12 gallons per hour ..
Ah, I am familiar with those makes of machines that you have as I used to subscribe to a classic plant magazine that featured machines from around the world until they filled the pages with modern stuff. Koering actually joined forces with a UK company Newton & Chambers and became NCK.
That NW is a fair old sized machine and engine for that matter, do you have you anything on youtube of it?
No I might make a Video next time I use It.. I do have a Go Pro now .. There are some very good History books now on Northwest Bucyrus Erie and on Marion that I have .. The History of Letourneau is very interesting too ..More books than you can imagine on Amazon .. I am not very familiar with Brands made in Europe they are different yet very similar in many ways ..
Bucyrus also teamed up with the old British company Ruston as well, and became Ruston Bucyrus, made just up the road from me in Lincoln also a no longer in business.