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Homemade Upside Down Hydraulic Jack


PLANS:
None. For all tools with plans, click here.
BUILDER:
Mr.DK DIY on homemadetools.net
DESCRIPTION:
Homemade hydraulic jack designed to operate upside down. Conducted by fitting a bypass tube from the reservoir to the piston chamber.
RATING:
(2)
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Feb 05, 2021 7:30 AM
Hans Pearson
I did that some time ago but found that the supplied oil was a bit too thick, so I thinned it down with kerosine, it worked then. One thing still upset me which was that the pump now worked the wrong way. I tried several lever and crank options but none were fully successful. The way I eventually solved the problem was by modifying another small jack to act as a pressure source. Simply replacing the piston with a dummy and taking a pressure pipe to the turned jack with a return from reservoir to reservoir.
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DIY Upside Down Hydraulic Jack - comment on how to build a Upside Down Hydraulic Jack - 1 comments
Hans Pearson says:
Feb 05, 2021 7:30 AM
I did that some time ago but found that the supplied oil was a bit too thick, so I thinned it down with kerosine, it worked then. One thing still upset me which was that the pump now worked the wrong way. I tried several lever and crank options but none were fully successful. The way I eventually solved the problem was by modifying another small jack to act as a pressure source. Simply replacing the piston with a dummy and taking a pressure pipe to the turned jack with a return from reservoir to reservoir.

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