6000 missing prop piece

[PrangeWay]

Cleaning my 6000's I noticed one has a little screw in front of the prop, while the other does not and is open down the shaft. How/Where can I get this little screw piece? I remember noticing this when I got the 2nd one to, but I figured maybe there was a slight design change and it's not missing?


PW

 

[rvitko]

There was a design change, see the thread on cleaning the pumps/alarming stickied at the top of the forum.