Rear tire valve stem identification/question

pwyld · Apr 27, 2017

I have a ballast (liquid) rear tire that is low on air. At the top of the stem contains a sphere that if you depress it it will release air (tire is rotated to position the valve stem at the top of the tire). It is appears to be a screw cap, that when you loosen it it will also leak air.

It is not a schrader valve, nor will a standard air gauge or air nozzle fit it. Does anyone know what type of valve this is and what attachment or tool I need to fill it with air? I don't want to experiment with unloosening the cap totally for fear of losing all my air pressure that is remaining.

Thanks

jdv · Apr 27, 2017

Looks like a regular tractor valve stem to me, the
cap may just be corroded on there, grip the lower
part with pliers, and try to unscrew the cap, parts
store should have the whole unit if you have to
unscrew the lower portion. Just be careful not to
twist the tube and tear it.

gene bender · Apr 27, 2017

You should get your tire people to come out and replace the whole valve assy as its leaking and is bad. They will know just what to do. The cap does not seal the air and by looking you have been leaking fluid because of the faulty valve assy.

Gary201 · Apr 27, 2017

Looks like a standard setup to me- perhaps when the ballast was added someone didn't install the Schrader valve? There should be a Schrader valve under the cap.

Bob · Apr 27, 2017

It looks like you have a "TR CH3 new style core housing". There should be a conventional valve core under the valvestem cap.
<img src = "https://i5.walmartimages.com/asr/3583323d-bfca-477b-a443-dc0a995e7e31_1.af594667265143bf012b1ce3279abbe0.jpeg?odnHeight=450&odnWidth=450&odnBg=FFFFFF">

There's an older-style, as well, with female threads "TR CH1".
<img src = "http://www.sinppatools.com/files/tr%20ch1.jpg">

Procedure to replace would be to put a jack underneath the axle to take the load off of the tire, rotate the tire so the core is at the top, relieve air pressure and quickly change it. Some CCL may spill. Of you aren't prepared to deal with this possibility, bet get a pro.

pwyld · Apr 27, 2017

Thanks to everyone. I never replaced or needed to fill the rear tires before, so I didn't know what a standard rear tire stem look like. Thanks again for all the advice.

jeffcat · Apr 27, 2017

Yes the liquid corroded the core. Had that happen on my tractor.
Relieve the weight on the tire. Valve at the top and quick as a bunny
change the core. Rots the end off. Put air to ~8 / 10 lbs.

RedGreenGuy · Apr 27, 2017

Tighten the valve core carefully. Mine was leaking. Changed the core and twisted the valve stem off.
Lots of tears and work to removed tire and rim so it could be cleaned and repainted.

hd6gtom · Apr 27, 2017

pwyld they make those in stainless steel for calcium filled tires, the core in them is also stainless. Any place that specializes in farm tires will have them.

glennster · Apr 27, 2017

i just put 2 in my w-9. the end rotted off and stayed inside the valve stem. unscrewed the stem and blew the piece out with an air hose.

pwyld · May 1, 2017

Thanks again to everyone. I finally gave up and had a professional come out and do both tires. Both tubes were shot. I think I lucked out though. The rims were still usable. I had to do a little plug welding in some areas, remove all corrosion with a wired wheel on a hand grinder and paint the rims before the tubes were replace by the pros. It took about 6 hours to do the whole job, but tractor is running again.

Rear tire valve stem identification/question

pwyld

Member

jdv

Member

gene bender

Well-known Member

Gary201

Member

Bob

Well-known Member

pwyld

Member

jeffcat

Well-known Member

RedGreenGuy

Member

hd6gtom

Well-known Member

glennster

Well-known Member

pwyld

Member

Similar threads