051b - Meter; A1 - Distance between the regulator and the front side of the meter; В1 - Meter height; M - Gear center
1. Attach the indicator to the fixture and install the measuring plate.
2. Install in «0» indicator with 3 mm interference on the measuring disc (051). Measuring disc height (051) regulated.
3. Install the roller bearing outer race (46b) on the inner ring of the drive gear (47) and install the magnetic disk (052s).
4. Insert the drive gear into the gauge plate and measure the height of the drive gear with tapered roller bearing and magnetic disk.
5. Determine the difference between «IN 1» and height «IN». Record the resulting value (e.g. 1.79 mm).
6. Read the main deviation «A» pinion gear («+» or «—») and write it down (e.g. +0.06 mm).
7. Depending on the prefix («+» or «—») the value for the pinion is plus (If «+») or taken away (If «-»).
8. Insert the meter (051b) into the gearbox housing. Screw it in.
9. Insert the left (052e) outside inside and right (052d) From inside to outside, the measuring rings into the gearbox housing until they stop.
10. Install the gauge (052a) with the measuring finger into the measuring device (052). The measuring pin is screwed into the measuring piece (052b).
11. Install the measuring piece (052b) into the measuring device and set the indicator to «0» with 2 mm tension. When tightening the bolt, the indicator should be in «0».
12. Insert a 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 positive reading («+») or negative («—») direction (for example, received - 0.01 mm and negative direction). The positive or negative direction depends on the rotation of the indicator. Direction of rotation, from the neutral position, counterclockwise defines the negative direction, clockwise defines the positive direction.
14. Determine the gasket thickness:
distance between height «IN 1» and height «IN» = 1.79 mm + Basic deviation «A» drive gear 0.06mm = 1.85mm + difference «A1» between regulator and meter front 0.01 mm = Gasket thickness 1.86 mm.
15. Remove the measuring device and measuring rings from the gearbox. Remove the meter. Insert a spacer of a certain thickness into the gearbox.