Do not tie wrap the molded sensor plug. Without the strain relief, normal trailer jounce and vibration will cause the terminals to spread and loosen. A small amount of slack also eases access to other system components. Park the vehicle on a level surface. This rate equals a wheel speed of approximately 4 mph 7 kph.
Bundle any excess cable in a loop bow tie and secure the cable in the sub-frame. The assembly may be mounted on the air tank or on the cross member of the vehicle. If a common chassis ground point is present, but not sufficient, ensure that there is no paint or debris inhibiting electrical contact at the ground point. The normal location is on the right front corner of the sub-frame, but will vary depending on the type of trailer. Do not overtighten tie wraps on a cable. Plumb the spring brake relay or emergency relay valve into the system as usual.
Pipes with pre-applied thread sealant may also be used. Repeat the sensor installation check. After performing the necessary repairs, repeat the end of line test to verify correct sensor installation. The fault code will be displayed three times. However, structure is not always available on tank-mounted installations. The Test Status box at the bottom of the menu will also display the status of this test. Do not overtighten the tie wraps on a cable.
Ensure the cable is free from cuts or breaks. End of line testing must be done after all installations. Click on Close to exit. Check the screen for the correct voltage 9. To finish the Sensor Orientation Test, click on Stop, then on Close. Support the vehicle with safety stands.
The correct mounting orientation must be selected prior to starting the test. If the indicator lamp comes on for three seconds and goes out: This indicates a correct installation. The end of line test is complete. Do not work under a vehicle supported only by jacks. Use the information in the Repair Instructions field to perform the necessary repairs. The Test Status box at the bottom of the menu will also display the status of this test.
If there is no sensor output, verify that a tone ring has been installed and that the sensor is pushed all the way in against the tone ring. Route the cable with the brake hose. Perform the necessary repairs and repeat the test. Use a tie wrap or clip to secure the cable to the air hose as close to the fitting as possible. Minimum output must be 0.
Connect the sensor and cables on the prepped axles to the sensor extension cables. Figure 14 Figure 15 4003562b Figure 14 2. Push the sensor into the spring clip as far as possible. Sensor output appears in the Sensors field located in the bottom right portion of the Sensor Orientation Test screen. Bundle any excess cable in a loop bow tie and secure it in the sub-frame of the trailer body to prevent cable damage.
Check the screen for the correct voltage 9. Green background: Correct sensor location. A good rule of thumb is to have the bend of the cable, also known as bend radius, be greater than or equal to ten times the diameter of the cable. Click on the Activate button and listen for the valve to click, indicating a good installation. Identify the type of cable to be installed. The barrier is necessary to inhibit corrosion, which can occur from contact between dissimilar metals.
Click on Start to begin the test. Spin the next sensed wheel as indicated by the screen prompt. Pipes with pre-applied thread sealant may also be used. Brake hose clips with a provision for the sensor extension cable are recommended as opposed to tie wraps. If this is not the case, the electrical contact at the common chassis ground point is not sufficient or not present.
Figure 7 Leave enough slack in the cable to compensate for flexing of the trailer and sub-frame. Failure to provide adequate strain relief on the cables can result in future maintenance that is not covered under warranty. The Red valve indicator will be selected. Regardless of whether zip ties or cable clips are used, cables should be secured at intervals not greater than 18-inches 457 mm to avoid cable vibration. Fault Code Check Perform necessary repairs. Route to the back side of the axle. If you are installing the power cable only, go to Step 9.