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Old 04-22-2016, 01:28 PM   #11
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I'm confused about why there is only 5/16" between the stems on the duals? The stems should be 180• apart be because of balancing.
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Old 04-22-2016, 01:47 PM   #12
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The stem issue

When I purchased this motorhome the inside duel stems were not visible to me or anyone who looked for them.

When I got new tires I followed the advice of some on this forum saying that the stems should be one behind the other. I liked that idea so that one could check pressure and adjust as necessary. I also noticed that when looking at new RVs that all the Ford chassis had the stems near each other.

I guess I can have the outer rims rotated 180º but I will only do that if I have access to both stems. I will visit a tire shop or the place whee I got the tires to see if that will work.
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Old 04-22-2016, 01:48 PM   #13
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Originally Posted by rsdata View Post
You can and will "grow into" the system as you use it you will become aware of the settings and be able to watch the temps and the pressures increase when traveling on the monitor.

Setting something other than defaults as a new user will cause you some grief I think. As you become familiar with the unit you can make changes... nothing will require re installation of the stem monitors, so the hard part is over.

My sensors seem to read 2-3# lower @ 50# then my trusty digital meter, but I now know when they read 47# my gauge will read 49-50#.

Don't make them overly complicated as a new user...
OK, thanks. Now I know that may me the norm on the difference in tire pressure.

Thank for the good advice.
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Old 04-22-2016, 02:00 PM   #14
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If the tires are balanced, it should not make any difference whether they are 180 degrees rotated or 1 degree. I would mount them so the stems are as close together as possible just for the convenience of checking them.
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Old 04-22-2016, 05:52 PM   #15
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My "design" pressure on the tires us 120 psi cold. That's what I keep them at here in Florida. Just got back from five weeks on the road with some temps around 40F that brought the pressure down to about 105-110 psi just due to temp. I did basically what clr indicated from that manual with a low around 100 (about 15% below norm) and a high around 130 (about 10% over). On the temps, I just left the defaults in. I can tell you that today with air temps of 89F and five hours of driving at 65 mph, my tire temps were around 90. Also, I had been losing signal from the sensors on the toad, so I added the repeater this trip and it worked great. No signal loss at all. Rather than install it where it could possibly drain a battery, I bought a 110V to 12V converter for LED lights and mounted everything in the cabinet behind the bedroom TV and plugged it in there. The inverter keeps it powered while driving, so no battery drain. I think the converter was $10 on Amazon and connected straight to the repeater.
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Old 04-22-2016, 05:58 PM   #16
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TPMS

I installed a TireMinder TM66 system last weekend on my TT. Tire minder states in their manual that due to variances the pressure reading should be within 3%. I inflated my tires to 50PSI as measured by a certified pressure gauge. None of the sensors were within limits. Two were over 4 PSI out of limits. When I called tire minder they said I should just adjust the baseline pressure to account for the differences. I said not acceptable. They are now (supposedly) sending me 4 new sensors that have been calibrated and tested to be within tolerances. I'll wait and see.
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Old 04-22-2016, 06:07 PM   #17
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Originally Posted by Strigflag View Post
I installed a TireMinder TM66 system last weekend on my TT. Tire minder states in their manual that due to variances the pressure reading should be within 3%. I inflated my tires to 50PSI as measured by a certified pressure gauge. None of the sensors were within limits. Two were over 4 PSI out of limits. When I called tire minder they said I should just adjust the baseline pressure to account for the differences. I said not acceptable. They are now (supposedly) sending me 4 new sensors that have been calibrated and tested to be within tolerances. I'll wait and see.
Good for you. Let us know what happens with the replacements.
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