My JoBlow Sport needs some TLC - it's squeaking when pumped. Anyone know how they come apart?
Unscrew the collar where the plunger goes in, there's just an o-ring on the base of the plunger that'll need replacing. Decent bike shops should have a partitioned tub with spares for every Topeak pump.
It might need a new o-ring or it might just need a smear of grease on the inside of the barrel and the shaft.
The bottom also unscrews with a couple of allen key bolts, so that you can get to the 'valve'. SJS cycles sell service kits
Though it sounds like you just need to get to the top end...
Thanks.
Mine needs new o-rings at the gauge joint. Just unscrew the plastic "nut" on the opposite side from the hose, slide up the cowling and gauge pulls out.
got a service kit here if you want it, £4
They're different for each Joe Blow - may well not be the same. The o-rings are £1 or so.
joe blow sport