Smart Shoe, model R-142 used for wheel tread applications

1.1 With the brakes released, use a pry bar to push the Brake Shoe away from the wheel tread to create at least one inch of clearance, as shown on photo.
1.2 On some applications the slack adjuster should be operated. When one 1-inch clearance is not available, one or several brake shoes should be removed.
1.3  Carefully observe applicable safety rules!
                                     

2.1 Insert two Shoe-Stops between brake shoe and wheel tread making sure that the magnets are facing the wheel tread. The shoe stops should be located minimum 5.5" apart to allow SMART SHOE™ sensor installation on the center line of the brake shoe. Apply brakes and make sure that brake shoe sits on both shoe stops then release the brakes.

2.2  Carefully slide the sensor between brake shoe and wheel tread. Make certain that the two plates of the sensor wing are facing the brake shoe. Check the sensor “wheel side’ label
2.3 Align the sensor with the brake shoe center line and make sure that it will be located at about 1/2” from the wheel tread edge. Ensure that both plates of the sensor wing are fully resting on the brake shoe.
2.4 To avoid exposing SMART SHOE™ to excessive shocks, make sure there is almost no clearance left between Brake Shoe and the SMART SHOE™ wing.
2.5 Both 2-magnet holders, one at each edge of the sensor body, are strong enough to hold the sensor securely in place for several successive brake applications.
2.6  Remove both shoe-stops.
 

3.1 Turn ON the Readout by firmly pushing the Red Button once and then wait a few seconds for zero and measuring units to be displayed

3.2  Apply the brakes, and allow any required time to stabilize (in most cases, this is a minimum of 20 seconds).
3.3  Release brakes and repeat the test 2-3 times to warm up both brakes and sensors before the final readings are recorded.
3.4  Read the Brake Shoe Force directly in Pounds (lb) or daN and fill-in the appropriate Log Sheet.
3.5  Once testing is completed, make sure there is no force on the sensor and then slide it outward and remove it.
3.6  Turn Off the Readout by firmly pushing the Red Button 
once.

3.7  Using cotton sheets clean and dry thoroughly the sensors and cables. Then add grease between wing plates and sensor body rods if need it and carefully re-pack all the equipment into the carrying box.