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Discussion Starter #1
My 15 year old 2.5 ton Blackhawk floor jack pumps up OK, but the jack handle slowly comes up when weight is on the jack. I twisted the handle tightly to set the check valve but without sucess. Any ideas? This is a great jack otherwise, but there are so many cheap new ones out there. Thanks in advance
 

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Sounds like the pump check valve is worn/dirty/damaged...
Have you tried the Proto/Blackhawk tech line - 770-787-3800.
Not sure if Stanley tool service shops handle these now ?
 
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