The rear rim has a different style of sensor than the front. See photo. How do I remove it so as to replace the battery? Do I just dig into it while it is on the rim instead?
I bought the bike used a few years ago and this is the first time I've replaced a rear tire myself. I knew as soon as I saw the sensor that I was in for a fight. The battery has been dead for a while. I Love the TPMS and would like to get it back.
Does anybody know how to get it off of the rim? Do I have to put another valve stem on while I dick around with the sensor?
They are epoxy potted and that makes it very difficult.
Usually you will need one or two sacrificial units to locate the battery, any components close to the battery, and the wires that attach the battery. Then you can dig out the epoxy over the battery, remove it WITHOUT destroying the wires, solder new wires to the originals and install a new battery. Most people give up long before this though.
A video showing how it is done on a similar sensor of the same brand, Schrader. : https://www.youtube.com/watch?v=QjrT7WBG6U8
Brian
Tree, nice work on the tps so far. Please keep us informed on how it goes.
I think now on this style you simply hold the module with one hand and use a wrench on the flats of the valve stem to unscrew it. Once you have that part off you can pull the module out of the hole for replacement.
Thanks for the replies. Much appreciated.
OK. Here is the list of "to do" that I had in mind fortodaythis week.
Replace the tires.
Replace the TPS batteries (easy).
Replace the air filter.
Fix my stupid windscreen that won't raise any more.
Not so. As it often happens when I start removing stuff to get at other stuff I find more stuff that needs attention. I have to add to that list seals on the forks - the goo that was inside is on the outside.
So I am gooing to take my time and not rush. As far as TPS batteries are concerned I did manage to coax out the potting material and found that the battery can be replaced (3VDC, CR2050HR). I had to perform some selective demolition as the pics show but I think I can salvage it with some Plasti-Coat and a little luck. I will endeavor to update this thread if anyone is interested.
I bought the bike used a few years ago and this is the first time I've replaced a rear tire myself. I knew as soon as I saw the sensor that I was in for a fight. The battery has been dead for a while.
That is disappointing. The "new" version of the sensor has not been out all that long. 3 years? Hearing that it has gone dead already is not what we want to hear (and yours is the first posting of such for the new version, that I know of). This non-serviceable "improved" model with larger battery was supposed to have a much longer battery life (I was hoping for 5 or more years). Maybe yours just failed for another reason?
Keep in mind, the version used on my G37 is now 8 years old and still working. This is why it is so irritating that these die so soon in the Concours.
Anyway, cool work on digging it out!
No need to discount the new type just yet. As I said I bought the bike used 3 years ago so I don't know how long it"s been in there.
What I was saying is that I don't think the new sensor model has been available/used/seen/in-production for more than 3 or so years...