Log In | Register
Skip to main content
Topic: Question about Quadra Bigfoot Jack System (Read 211 times) previous topic - next topic
0 Members and 1 Guest are viewing this topic.
Question about Quadra Bigfoot Jack System
Hello To All,

I was getting a periodic popping noise from one of my jacks.  I suspected that there may not have been enough fluid, so I decided to add some to the reservoir.

The thing I don’t understand is that when I looked at the reservoir (with jacks extended), it was nearly full, about 1.5” below the top.  I would have expected most of the fluid to be inside the system at that point.  Why was it nearly full?

Anyway, I topped it off, to within 1” from the top, retracted and re-deployed, and that seemed to fix the problem.

Thanks for your help,

Tim
2014 Mid-Bath
2014 Honda CRV toad
Re: Question about Quadra Bigfoot Jack System
Reply #1 –
I would expect the same as you.  I have never heard such a noise from my jacks.  Quadra does have a 24/7 support line and they are very helpful. 

Mike S.
'06 30' TB Anniversary Edition
Re: Question about Quadra Bigfoot Jack System
Reply #2 –
Thanks Mike.  I will call them soon and report back.

Tim
2014 Mid-Bath
2014 Honda CRV toad
Re: Question about Quadra Bigfoot Jack System
Reply #3 –
Hi Tim. The Quadra jacks are hydraulic down and hydraulic up. So the pump(s) and valves are just moving fluid from one end of the cylinder to the other end. The only difference in volume is the amount of volume each of the four push rods occupy. So with all four jacks fully extended in the down position, you would have the least amount of fluid in the reservoir. With all of the jacks up, you would only increase the fluid in the reservoir by the volume that four steel rods occupy extra.  RonB
RonB (Bostick) living in San Diego
Original owner of "Bluebelle" a '99 TKB
 
Re: Question about Quadra Bigfoot Jack System
Reply #4 –
Quote from: Tim&Florence  - 
Hello To All,

I was getting a periodic popping noise from one of my jacks.  I suspected that there may not have been enough fluid, so I decided to add some to the reservoir.

The thing I don’t understand is that when I looked at the reservoir (with jacks extended), it was nearly full, about 1.5” below the top.  I would have expected most of the fluid to be inside the system at that point.  Why was it nearly full?

Anyway, I topped it off, to within 1” from the top, retracted and re-deployed, and that seemed to fix the problem.

Thanks for your help,

Tim
I don't know anything about your Jack's in particular but I have lots of experience with hydraulic systems. It sounds like cavitation that can be caused by an air bubble from low fluid levels which causes a vortex  which causes popping noise. Maybe you solved the problem but if it persist try adding some anti stiction fluid.
Discuss anything with anyone and disagree agreeably. Always be polite and respectful.