Driveshaft Balancing - Using the Mastertech ® Series MTS 4000 Driveline Balance and NVH Analyzer (Vetronix)
All vehicles
- 1.
Install the Mastertech ® Series MTS 4000 Driveline Balance and NVH Analyzer (Vetronix) to the vehicle.
- 2.
Working under the vehicle, install an accelerometer. The accelerometer can be attached and mounted near either the transmission or differential end of the driveshaft.
- 3.
Clean an area of the driveshaft and install the reflective tape, then install the photo-tachometer sensor. The sensor should be placed at approximately a 20-degree angle from perpendicular to the surface of the reflective tape. Make sure the sensor does not get moved during the balance procedure.- 1.
Reflective tape.
- 2.
Photo-tachometer sensor.
- 1.
- 4.
Using the Mastertech ® Series MTS 4000 Driveline Balance and NVH Analyzer (Vetronix), run a driveshaft balance test with the driveshaft unmodified.
Vehicles with tapped pinion flanges
- 5.
Label the tapped holes in the pinion flange numerically, starting at the top hole as 1. Mark the remaining holes 2, 3 and 4. Label in the direction of rotation.
- 6.
Using the Mastertech ® Series MTS 4000 Driveline Balance and NVH Analyzer (Vetronix), run a second test with the 12 mm (0.47 in) test weight set screw in the No. 1 hole, previously marked on the pinion flange.
- 7.
Remove the test weight, then install the weight combination directed by the Mastertech ® Series MTS 4000 Driveline Balance and NVH Analyzer (Vetronix).
Vehicles without tapped pinion flanges
- 8.
Using the Mastertech ® Series MTS 4000 Driveline Balance and NVH Analyzer (Vetronix), run a second test with a test weight. Using a metal band, secure the test weight to the end of the driveshaft. The weight should be placed at the end of the driveshaft tube, as close to the tube-to-yoke weld seam as possible. Mark the location of the test weight on the driveshaft, as shown in the figure below.- 1.
Test weight.
- 2.
Tube-to-yoke weld seam.
- 3.
Driveshaft pinion flange.
- Select the test weight based on driveshaft size. Larger driveshafts use 10 g (0.353 oz). Smaller driveshafts use 5 g (0.176 oz).
- 1.
- 9.
Remove the test weight, then install the recommended weight at the position directed by the Mastertech ® Series MTS 4000 Driveline Balance and NVH Analyzer (Vetronix). Using a metal band and epoxy, secure the test weight to the driveshaft, as shown in the figure below.- 1.
Test weight.
- 2.
Measure in this direction.
- 3.
Driveshaft diameter.
- 4.
Directional rotation.
- 5.
Balance weight relative to test weight centerline.
- The results are displayed with respect to the location to where the test weight was placed.
- 1.
All vehicles