I am installing an HFS-1 system and have encountered a problem.

The male/female metal fitting that goes into the plastic pump housing will not thread in on the outlet side. It feeds perfectly into the inlet side but it stops about a half turn in on the outlet side. I've looked at and trieed both fittings and they are the same. There is no debris in the pump.

Any help (Richard ) would be awesome.

Thx

 

This is why I payed someone to install my hfs-1 cause I don't want to deal with this crap!

cause if somthin fugs up - take it back and let them deal with it. Thats just may opinion.

 

It appeared that you may have cross threaded the fitting to the pump.

Take out the fitting and clean up the thread on the pump head and start agin, but put it in straight. There are plenty of good thread beyond the half way stage.

A new head is needed if you crossed the entire threaded hole. I think you are OK.

 

Richard, This is the way the pump came. I didn't tighten it any further than when it got stuck because I wanted to avoid cross threading plastic at all costs.

Are you saying then that you reccomend forcing it through? Just to re-iterate I never even came close to cross threading. I actually lined up the steel piece and spun it backwards (softly, in my hand) until the threads lined up making it flush or parrallel at which point I started hand threading. One side goes all the way in with ZERO torque and the other side stops almost immediately.

Im going to PM you again to bring this thread back to your attention so I can get this done asap

 

got to see if the problem is with fitting or thread on the pump head

-take the fitting already on the inlet side and put it on the pump outlet, does it thread

-take the other fitting and put it on the pump inlet side, does it thread?

 

Pics may help so we can see what your doing

 

I was just going to suggest that.

We have spare fitting in the US, I can send you another one. So it is the inlet side that gave you problem?

 

From first post


It wont go into the outlet but it will go into the inlet no problem. Both fittings are damage free, Both fittings are the exact same, both fittings fit perfectly into the into the inlet side.

The problem is in the plastic pump head.

 

My pump head had a little bit of an issue on one side (it was the pump head not the fitting). I was sure that I wasn't cross-threading and just persisted going in a little and then out a little and then back in again a little more, etc. I really don't think I cross-threaded it. I think the threads were just a little off on one side of the pump head. After working them a bit it worked fine. But I was gentle throughout and am sure I wasn't crossthreading. Of course I haven't fired up the system yet to check for leaks...<crossing fingers>...

 

You are just too gentle with the tough shurflo pump

 

Have you resolved the problem?

 

Yea its been a non issue for a while now. I was being too gentle in fear of damaging the plastic pump head.

Thx Richard