Magazine for the professional tire industry
Issue link: https://mtd.epubxp.com/i/630954
87 www.moderntiredealer.com Removal 1) Remove the tire and wheel assembly from the vehicle. 2) Demount the tire from the wheel fol- lowing the tire changer manufacturer's instructions while paying special atention to the following to avoid damaging the pressure sensor: • When breaking the tire bead loose from the wheel rim, avoid using the bead breaker in the area of the sensor. Tat includes both front and rear beads of the tire (see Figure 3). • When preparing to demount the tire from the wheel, carefully insert the mounting/demounting tool 280 degrees from the valve stem +/- 10 degrees, then proceed to demount the tire from the wheel. Use this process on both the upper and lower tire beads. 3) Using a thin-walled socket, remove the special nut retain- ing the sensor to the wheel. W hile removing the nut, hold pressure against the rear of the metal valve stem to keep the valve stem from pushing rearward, which could damage the antenna strap (see Figure. 2). 4) Remove the sensor from the wheel (see Figure 4). NOTE: Before reinstalling an existing tire pressure sensor, replace the seal and metal washer at the base of the valve stem to ensure proper sealing (see Figure 1). 1) Wipe the area clean around the sensor/valve stem mount- ing hole in the wheel. Make sure the surface of the wheel is not damaged. CAUTION: To avoid damaging the sensor antenna strap, hold pressure against the rear of the metal valve stem while the sensor is inserted through the wheel mounting hole and the nut is installed (see Figures 2 and 4). 2) Insert the sensor through the wheel as shown keeping pressure against the rear of the metal valve stem. Te poted side of sensor is to be positioned toward the wheel. Do not atempt to mount the sensor otherwise, or damage may occur. Install the sensor nut (with pressed-in washer) by hand (see Figure 4). NOTE: Before tightening the sensor nut, push downward on the sensor housing in an atempt to make it fush with the interior contour of the wheel. 3) Using a thin-walled socket, install the sensor nut. While holding the sensor in position, tighten the sensor nut to 71 in.-lbs. (8 N.m). CAUTION: Over-torquing the sensor nut by as litle as 106 in.-lbs. (12 N.m) may result in sensor separation from the valve stem. Under this condition, the sensor may still function; however, the condition should be corrected immediately. 4) Mount the tire on the wheel following the tire changer manufacturer's instructions, paying special atention to the following to avoid damaging the tire pressure sensor: • Rotating wheel tire changers: Once the wheel is mounted to the changer, position the sensor valve stem approximately 280 degrees from the head of the changer in a clockwise Figure 5: Mounting the tire using rotating wheel machine. Figure 4: Removing and installing the tire pressure sensor. Quik-Link: 800-687-1557 ext. 11144