Topeak smarthead problem.

D4N
D4N Posts: 74
edited April 2014 in Workshop
Hi guys i recently purchased a topeak joe blow turbo.

Its fine with presta valves but when i try and pump up a shrader valve it doesnt work?

I push the head of the pump all the way in then pull the lever out.

It doesnt seem to go far enough in and depress the release valve. I have to really push it hard and pull the lever out at the same time to get it to work. It might work 1/20 times.

When i try and pump it there is so much resistance because of this?

Am i doing something wrong. Its starting to really annoy me off.

Thanks

Dan
My other bike has an Engine....