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Old 07-31-2019, 04:04 AM   #1
Join Date: Jan 2016
Location: Mosinee, WI
Posts: 31
Lesson learned

We have TST 507 tire pressure monitoring system,it has preformed well for the last two years. I took off the sensors to replace the batteries in doing so I lost the small rubber gaskets from the sensors. I replaced the batteries,reinstalled the sensors,checked the monitor all seemed well. Later I discovered I had a flat,the unit had not be moved,so it seemed odd. I inflated the tire inspected it used soapy water to check for leaks found none. Then I checked the monitor to discover the missing rubber gasket,luckily it was in the plastic bag I store the monitors and spare batteries and installation tool.The lesson I learned is to check the sensors for the gasket any time they are removed or replaced. I hope this helps someone in the future! Happy trails everyone!
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Old 07-31-2019, 07:32 AM   #2
travelin texans
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Join Date: Nov 2017
Location: Picacho, Az
Posts: 6,638
I found when I replaced the batteries to add a dab of dielectic silicone grease to the battery cap & the valve stem threads, this helped seal the battery cap & kept the orings in place when removing.
Full-timed 10+ years
Sold '13 Redwood FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
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