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7. Untighten the socket head screws on mechanical
seal.
8. Extract the rotating part of the mechanical seal from
the shaft.
9. IMPORTANT!
During the following operations, take care you don't
damage the lapped seal surface; don't lay them on
the bench and handle them with clean hands.
10. Clean carefully the shafts.
Lubricate lightly the O-ring and introduce the rotating
part of the seal, possibly by means of a conical
bush.
Exert pressure only with hands; avoid using metal
tools.
11. Be sure the mechanical seals stand on the shaft
shoulder and tighten by degrees the socket head
screws. We suggest you should use a thread locking
adhesive in order to avoid their untightening on
work.
12. Assemble the stationary part of the seal on rotor
case, taking care to aline the slot with the retainer
pin, already arranged on seat bottom.
ROTOR CASE ASSEMBLY Mod. B1 - B2 - B3 - B4 - B550
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