051b - Measuring instrument; A1 - Distance between the regulator and the front side of the meter; B1 - Height of the measuring device; M - Gear center
1. Fix the indicator to the clamp and install the measuring plate.
2. Set the indicator to "0" with a 3 mm tension on the measuring disk (051). The height of the measuring disk (051) is adjustable.
3. Install the outer ring of the roller bearing (46b) onto the inner ring of the drive gear (47) and install the magnetic disk (052c).
4. Insert the pinion gear into the measuring plate and measure the height of the pinion gear with tapered roller bearing and magnetic disk.
5. Determine the difference between the height "B1" and the height "B". Write down the obtained value (for example, 1.79 mm).
6. Read the basic deviation "a" of the drive gear ("+" or "-") and write it down (e.g. +0.06 mm).
7. Depending on the prefix ("+" or "-"), the value for the drive gear is added (if "+") or subtracted (if "-").
8. Insert the gauge (051b) into the gearbox housing. Screw it in.
9. Insert the left (052e) from the outside inwards and the right (052d) from the inside outwards measuring rings into the gearbox housing until they stop.
10. Install the measuring instrument (052a) with the measuring finger into the measuring device (052). The measuring finger is screwed into the measuring part (052b).
11. Install the measuring part (052b) into the measuring device and set the indicator to "0" with a 2 mm interference fit. When tightening the bolt, the indicator should be at "0".
12. Insert the measuring device into the left hole in the gearbox housing.
13. Measure the distance "A" between the regulator and the front of the meter and record the reading with positive ("+") or negative ("-") direction (for example, received - 0.01 mm and negative direction). Positive or negative direction depends on the rotation of the indicator. The direction of rotation, from the neutral position, counterclockwise determines the negative direction, clockwise - the positive direction.
14. Determine the thickness of the gasket:
Distance between height "B1" and height "B" = 1.79 mm + Basic deviation "a" of the drive gear 0.06 mm = 1.85 mm + Difference "A1" between the adjuster and the front side of the gauge 0.01 mm = Thickness of the shim 1.86 mm.
15. Remove the measuring device and measuring rings from the gearbox. Remove the measuring device. Insert a gasket of a certain thickness into the gearbox.