We determine the moment of turning the drive gear shaft, for which:
...we tightly wrap a strong thread around the neck of the flange in several turns and attach a dynamometer to it. The force at which the flange begins to rotate uniformly, multiplied by the radius of the neck, will give the value of the desired moment. We write down its value.
By inserting two bolts into the holes of the flange and holding it with a mounting blade from rotation, a wrench «at 27» loosen the nut and..
... remove the flange from the splines of the final drive gear shaft.
Sliding pliers remove the cuff.
With light blows of a hammer through a piece of pipe of a suitable diameter, we press in a new cuff, having previously coated its seating surface with Litol-24 grease.
We install a new flange nut and gradually tighten it with a torque wrench until the moment is within 12–26 kgf·m, periodically checking the force of turning the shaft with a dynamometer.
If the initial force was greater than or equal to 2.9 kgf (which corresponds to a moment of 6 kgf cm), then tighten the nut until the flange turning force is 0.5–1.0 kgf (1–2 kgf cm) more than the original.
If the initial force was less than 2.9 kgf (6 kgf cm), then we tighten the nut until a turning force of 2.9–4.3 kgf is obtained (6–9 kgf cm).
If, when tightening the nut, the turning torque exceeded 9 kgf cm, then we disassemble the gearbox and replace the spacer sleeve.