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Harbor Freight Super Duty Jack Pumping Question/Problem

jonshonda

Well-known member
Joined
Jul 17, 2017
Messages
4,744
Location
Wisconsin
Bought a new HF jack Pump Me Up Big Boy and maybe the third or forth time I used it, while raising the GX460 it was making some squealing sounds, almost like it was cavitating. Now I notice the first half of the stroke (pump handle vertical, down to about a 45deg angle) seems dead, like it's not moving any fluid. The second half of the stroke it will lift just fine. Think it's low on fluid or is there an issue? I just got it so I could return for another.
 
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Rabid Badger

Well-known member
Joined
Apr 2, 2018
Messages
1,338
1) Give it a once-over and make sure there aren't any leaks.

2) Check the fluid level.

3) Go through the bleeding process to purge any air from the system.

If it still doesn't work right, take it back.
 
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