On Mon, 18 Aug 2008 01:15:07 GMT, with neither quill nor qualm, Grant
Erwin quickly quoth:

Ignoramus16322 wrote:

The hydraulic jack on my crane has two problems:

1) it leaks around the small (pumping) cylinder
2) When I open the valve, it opens too abruptly, so the crane drops
instead of going down slowly, I totally hate this.

So. I would like to buy a replacement jack, preferably something of
"high quality", chrome plated cylinders, made in USA or some such. Are
there any suppliers who sell similar but better jacks?

Pictures are he

http://igor.chudov.com/projects/Harb...t-Truck-Crane/


Igor, you can rebuild yours (just needs a seal or O-ring or two) or you
can simply buy another one from HF. This time, I'd get an air/over/hydraulic
one like this one:

I was going to suggest that, but it's on the back of his pickup.



http://www.harborfreight.com/cpi/cta...emnumber=94562

I haven't seen a US manufactured 8 ton long throw jack in many years.

Compare the length of that beastie with the (5" ram travel) jack in
the 37555 crane Ig has, Grant. g
http://www.harborfreight.com/manuals...7999/37555.PDF

--
It is pretty hard to tell what does bring happiness;
poverty and wealth have both failed.
-- Kin Hubbard