TPMS Sensor Service Guidelines

This document outlines the guidelines for the manual mounting on the rim of EnTire/TRW fixed angle TPM sensors.
This document does not cover any other TPM sensors.
- Sensor & valve components
- Step 1 Start fitting the valve unit on the rim
- Step 2 Tighten the nut
- Step 3 Check the assembly sensor – valve – rim

Step 1 : Start fitting the sensor - valve unit on the rim
• Slide the sensor-valve unit through the valve hole of the rim.
• Hold the sensor against the rim and the rubber grommet against the sealing surface.
• Insert the washer then the nut over the valve stem.
• Start tightening the nut using a 12 mm deep socket.
Step 2 : Tighten the nut
• Continue to tighten the nut until contact with the rim and then tighten to the final torque. The recommended torque setting is 4.0 Nm (35 lbf.in). For example, this allows the final torque to be between 3.5 to 4.5 Nm if a +/- 12 % tolerance torque wrench is used. (Note : it is recommended to use a class B tool but a class C tool is acceptable)
• The standard recommended torque range is given by the ETRTO, TRA… for a rubber corner joint valve.
Important : Tighten slowly with quarter turn steps until the final torque is reached.

Check that the sensor is firmly attached to the rim at the valve hole interface. Final positioning of the sensor feet is dependent on the wheel dimensions and may not be uniform. Possibilities are neither foot, one foot or both feet may contact the wheel drop center.

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