Waterproof
rubber seal
(5) Check the "O" ring that surrounds the battery compartment. This is the
waterproof seal. Replace if old or damaged. Additional "O" rings are provided
in your 507FT kit or can be purchased from TST by calling 770-889-9102.
(6) After the new battery installation replace the battery compartment cover and
snugly tighten the two screws. Do not Over Tighten.
(7) Screw the sensor on to the correct tire position.
Note: Changing the battery in the sensor does NOT affect the sensor
programming in the display. You will not have to reprogram the sensor into
the display.
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TST-Doc-507FT-RV WSD-C Manual-(D)
Note: When removing a stubborn battery cover screw, first tighten the screw to
break it loose (you will feel a slight "pop") and then try loosening the screw.