ASSEMBLY
1) Remove the protective layer from the bushing and the pulley.
After having made sure that the conical contact surfaces are completely clean and free
of oil and dust, insert the bushing into the pulley aligning the holes.
2) Lightly lubricate the screw threads. Position the screws without tightening them in the
threaded holes, as shown in Figure 14.
3) Clean the shaft and mount the pulley-bushing unit on it in the desired position. Remem-
ber that the bushing tightens the shaft first and then the pulley.
4) Using a hexagonal key, tighten the screws gradually, alternating between them, until the
torque value specified in the table is reached.
5) Tap against the thickest side of the bushing with a hammer, using a piece of wood or a
shim to prevent damage.
(This ensures that the bushing sits exactly in position). Tighten the screws a little
more. Repeat the hammering and screw-tightening steps once or twice more to obtain
maximum grip on the shaft.
6) If the use of a key is required, place the key on the shaft before mounting the bushing.
It is important to use a parallel key with play between the upper part and the bottom
part of the space.
7) Check the tightness of the screws following a short period of operation.
8) Fill the unused holes with grease to prevent impurities from entering them.
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