Yes. I unlocked the reservoir by turning the handle counterclockwise before pumping.
I will make sure it is at correct level after checking the check the small ball bearing and cleaning.
The first diagram on post #24 applies to my jack as my jack does not have the big round short tubes on both...
@jayemm and @ajchien
Thank you for your info.
I put a cardboard under my jack. I pump up up my jack to the highest position and left i overnight. Next morning, my jack came back down. I cannot find any oil on the cardboard. It does not gave me any hint where is the problem.
I can...
I have a Husky 1.5T racing jack sold by Home Depot in 2016. It does not stay up and coming down slowly.
I think that this is a Big Red Torin T815016L 1.5T floor jack and rebranded by Home Depot as the Husky line. It look exactly like this photo.
I drained the jack oil as it looks dirty...