The Classic Machinery Network

XS650 wrote:I am very envious , would love to own an old backhoe loader but having no space or mechanical ability it will remain a dream !
Have you posted any pics on here of the 370C ?
Craig

No not yet Craig, I don't think rebuilding cab, bonnet, got to get back on it after a bit of a rest with other projects

Steve

Thanks Steve,
Nice to see the pics of the Mercury and BTD6 Drott and the Trader tipper and Rapier 414 navvy.
In "another age" I worked on all of them.
Fred

Steve

Nice photos Steve I think the Hymac 610C in the top photo may have just been sold at auction? The other Hymac is a 590C

Jeremy

Steve

The rams on that Bucyrus Erie track loader look like they would lift 40tons and yet the bucket is spring loaded, loving the old photos steve

Whitlock 505 wrote:The rams on that Bucyrus Erie track loader look like they would lift 40tons and yet the bucket is spring loaded, loving the old photos steve

Yes Ian,
That's because hydraulics were in their infancy. Most early BE dozer hydraulics I worked on operated at only 1,000 to 1,250 Lbs. pressure so they needed a big piston area to develop the required thrust.
Also the large volume of oil required to move the ram had the effect of gearing down the hydraulics, (less speed more power).

Fred

Steve

FOWLER MAN wrote:

Whitlock 505 wrote:The rams on that Bucyrus Erie track loader look like they would lift 40tons and yet the bucket is spring loaded, loving the old photos steve

Yes Ian,
That's because hydraulics were in their infancy. Most early BE dozer hydraulics I worked on operated at only 1,000 to 1,250 Lbs. pressure so they needed a big piston area to develop the required thrust.
Also the large volume of oil required to move the ram had the effect of gearing down the hydraulics, (less speed more power).

Fred

Cheers Fred, yes that makes perfect sense, hydraulics not as refined and powerful in the early days, its amazing how far we've come in such a short space of time!

Ian