93
Rev. 5.1
ZMT-ZMTE
EXTRAORDINARY MAINTENANCE
8.3
08-Sostituzione delle pulegge
2
3
1
8.3 Pulley replacement
The pulleys are xed to their relative shafts using a taper bush (1).
To disassemble the pulley proceed as follows:
1) Loosen the screws (2) with the appropriate wrench;
2) Remove the screws (2) and insert them in the threaded holes (3) tightening uniformly;
3) After a few turns of the screws the pulley should be extracted easily from the shaft.
To assemble the pulleys proceed as follows:
1) Insert the taper bush (1) in the pulley holes;
2) Couple the entire unit to the shaft, ensuring the pulley is in the correct position;
3) Tighten the screws uniformly (2) with the appropriate torque wrench M=35Nm.
Carry out a visual check of all the belts before tting them.
In the event that deterioration is noted even if only on one belt, change the whole set.
CAUTION