In the plastic spacer between the clutch housing and the working cylinder, two flat grooves are made obliquely from the bottom up. When assembled, these grooves serve as guides for the measuring template. A groove is made on the middle part of the pusher of the working cylinder, the diameter of which corresponds to the size of the groove in the measuring template, as shown in Fig. 165. If, when the measuring template is installed in the groove of the spacer, the stamping on the edges of the template sinks into the groove, this means that the groove of the template covers the groove on the pusher of the working cylinder. This indicates that the wear of the driven disk lining is within acceptable limits, and the disk is suitable for further operation. If the stamping on the template is outside, this means that the template groove rested on the larger diameter of the pusher (see fig. 166). In this case, it is necessary to replace the driven disk after removing the clutch.
Pic. 165. Checking the wear of the lining of the clutch disc using a template.
1 - working cylinder,
2 - spacer,
3 - pusher,
4 - measuring template 115 589 072 300,
a - the direction of measurement with the left rudder,
b - direction of measurement with the right rudder.
Pic. 166. The wear limit of the driven disk.