Forum menu
[Closed] Help! Park automatic valve selector stuck on schrader
As above the automatically valve selecting head of my park tools pump is stuck on the schrader side - if I put a presta valve into the other hole it just keeps blowing out through the schrader side
Anyobe know how to remedy this or is it now dead?
TIA
My Blackburn won’t swop over if there is no back pressure
Not on a Park pump but my floor pump does that if I use the schrader side, I have to take the head apart & put it back together & all is well in the world until I next use the schrader <shrug>
If it's similar to our INF1 from Park, it's usually caused by the seals and shuttle getting gummed up. Remove the caps and seals, clean them, lube them with silicone, re-assemble, and they usually work fine until they eventually gum up again.
wot jam bo said about back pressure - it's a pain in the arse
it’s a pain in the arse
You're definitely using that pump the wrong way...