[AT] Semi-OT Dixon ZTR mower front tires

[Steve Offiler]

Charlie did you check valve stems?   I have this exact problem on my DR mower.  Valve stem rubber is aging and cracking.  Holds air OK, meaning I can inflate and use the machine all day, but it's flat again in a few days.  If the stem is moved around you get audible hissing.  This reminds me I've got to deal with it soon. That machine is my snowblower too.  

SO

Sent from my iPhone

> On Sep 17, 2016, at 11:57 AM, charlie hill <charliehill at embarqmail.com> wrote:
> 
> Guys I've got a Dixon Commercial grade ZTR mower.
> The front caster wheel tires are 11 x 4-5 tubeless.
> All of a sudden last fall I started having the front tires
> go flat.  They are in good shape.  I finally, early this spring,
> took them off the rims and wire brushed the bead of the
> rims to remove what little bit of surface rust and crud that
> had built up and there wasn't much.  Then I cleaned the
> bead of the tires with a solvent type cleaner that I hoped would
> soften them a bit.  I put them back on the rims and pumped them
> up and immersed the entire mess into a bucket of water.  NO leaks
> on either tire.  I put them back on the machine, mowed the yard one
> time and the next time I went to the mower they were flat again.
> So, I got some beat sealer compound and put on the beads.  Same result.
> Has anyone got a clue how to fix this problem?
> 
> I'm thinking tubes or just having the tires foam filled.  Opinions welcome.
> Also does anyone know what size tube fits in an 11 x 4-5 tire?
> 
> Thanks, I'm sick of pumping those tires up.  The only leak I've ever found 
> was
> around the bead.  I'm pretty certain there are no holes in the tires.
> 
> Charlie 
> 
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