Community Forums

oneknight · 05-21-2019, 04:28 PM

I use a TST system. I set the high limits high enough that I never get an alarm.
That's 148 front, 118 rear

Mwoodofd · 05-21-2019, 07:25 PM

The EEZ system default high may be 156 lbs - should say in their instructions. I agree setting it 20% above max inflation is a safe setting. Once you weigh your coach and get the 4 corner weight, then setting the tire pressure according to the tire manufacturer current chart should be clear to give you peace of mind. The tire chart should also show the minimum inflation rate that you should have, and regards to the drive and tag axle, most have to be inflated to the minimum unless your weight distribution is way off. All my rears are at 90 PSI (Goodyears on the back

), and if you have Michelin, it may be less, they seem to run cooler, and less pressure. Check the charts.

Your coach should have an outside air temperature reading somewhere (my old Classic does). Set your pressure in am when at coolest temps. Will need to be adjusted depending where you are in the USA, especially if moving South to North or vise-versa, or High elevation to Low - easy to check

Lots of good suggestions here in this thread. Common denominator is know your 4 corner weight, and adjust pressures according to the charts, and set you monitor to these parameters.

mcquone76 · 05-21-2019, 08:02 PM

I got coach 4 corner weight & Michelin chart says 120 in the front and 75 in the back.... 75 Seems low to me. But then I guess I add 20% to that and set my high limit? On my monitor

Victory Blue · 05-21-2019, 08:21 PM

Quote:

Originally Posted by mcquone76

I got coach 4 corner weight & Michelin chart says 120 in the front and 75 in the back.... 75 Seems low to me. But then I guess I add 20% to that and set my high limit? On my monitor

As others have said in earlier posts don’t set your rears below 85; this is advice from Spartan. Add 20% to 85 for the high alarm limit, subtract 10% from 85 for the low alarm limit.

The low alarm setting is the more critical of the two settings since you want to know ASAP if a tire starts to lose air quickly.

mcquone76 · 05-21-2019, 08:51 PM

Thank you, Really appreciate all the help

Gary.Jones · 05-21-2019, 09:54 PM

McQuone

Yes, dont inflate drive and tag to less than 80-85 psi. The 4 corner will say the load can justify about 75, but you should actually run 80-85 (Spartan recommendation and above Michelin minimum) to keep sidewall flex within tolerance.

Gary

Marcosdad · 05-22-2019, 07:41 AM

Quote:

Originally Posted by mcquone76

Not sure I understand that..... are you saying if it’s 70 Degrees outside your tire pressure should not exceed 130?

Nope, I was referring to temp.

onholdguy · 05-23-2019, 08:02 PM

Quote:

Originally Posted by Marcosdad

Nope, I was referring to temp.

Big thing is the low side reading don't worry to much about the high pressure or temp. Keep it from ringing and your safe. Like others. Minimum on rear 85 and front about 120. Works great. 2018 42 deq.

bamaboy473 · 05-23-2019, 08:26 PM

I use the infallible SWAG method, and it's never failed me. Adjust pressures to whatever you think you want them to be, then during your first trip monitor both pressure and temperature on the tires.

That night, adjust to allow for a 10% buffer between original numbers. If you made an original high pressure alarm for 148psi, but didn't get above 123psi, then drop the alarm number to 135 or so.

You want to know what's going on from tire to tire, and to know when one tire is showing abnormal readings. That's the purpose of a TPMS The alarm numbers are just for those of us that don't check our gauges regularly.

Gary.Jones · 05-23-2019, 09:23 PM

Im sorry Rick, but your comment just doesnt make sense, unless it is said in jest.

You DONT adjust tire pressures to just any pressure you think you want to run and then make minor adjustment from there.

Sorry, but I just cant let that very bad advice stand.

Gary

Victory Blue · 05-24-2019, 06:52 AM

Quote:

Originally Posted by bamaboy473

I use the infallible SWAG method, and it's never failed me. Adjust pressures to whatever you think you want them to be, then during your first trip monitor both pressure and temperature on the tires.

That night, adjust to allow for a 10% buffer between original numbers. If you made an original high pressure alarm for 148psi, but didn't get above 123psi, then drop the alarm number to 135 or so.

You want to know what's going on from tire to tire, and to know when one tire is showing abnormal readings. That's the purpose of a TPMS The alarm numbers are just for those of us that don't check our gauges regularly.

Way off base.

777 Driver · 05-24-2019, 07:05 AM

Quote:

Originally Posted by Victory Blue

Way off base.

I believe the reference is to the TPMS alarm limits, NOT the tire pressures.

Take care,
Stu

Victory Blue · 05-24-2019, 08:01 AM

Quote:

Originally Posted by 777 Driver

I believe the reference is to the TPMS alarm limits, NOT the tire pressures.

Take care,
Stu

Are we reading the same post? ‘Use a wild ass guess to set your pressures”, “a TPMS is for those who don’t check their gauges”. Total nonsense.

777 Driver · 05-24-2019, 08:59 AM

Quote:

Originally Posted by Victory Blue

Are we reading the same post? ‘Use a wild ass guess to set your pressures”, “a TPMS is for those who don’t check their gauges”. Total nonsense.

I'll agree that there is some ambiguity. However, it seems to me, that the predominant references are to TPMS set alert limits, not tire inflation pressures.

Take care,
Stu