Kinematica MEGATRON MT 3100 S2 - Replacement of the Mechanical Seal

INSTRUCTION MANUAL
System
MEGATRON
®
Type
MT 3100 S
2
Issue
3.1 / 29.01.2019
Page
30
of
39
• Unfasten the screws (32) and remove the chamber (8). The static ring of the
mechanical seal (20.1) will come off with the chamber. Take care of the spring
(20.3).
• Remove the seal housing (2). Take care of the mechanical seal disc (6) and the
shaft seal (16).
• Unfasten the crown coupling (5).
• Push the shaft (1) with ball bearings (Pos. 13, 14) out of the bearing housing (3)
into direction of the generator.
• If necessary, remove the locking ring (18) and the compensation disc (15) from
the bearing housing (1).
• Remove the locking ring (Pos. 17) and pull off the centrifugal disc (7) as well as
the ball bearings (13,14) from the shaft.
• Mount the new ball bearings on the shaft and dispose the used ones (do not re-
install pulled off ball bearings).
4.2.1 REPLACEMENT OF THE MECHANICAL SEAL
When mounting the mechanical seal (20), assure that the spring is in the correct po-
sition. Assure that the slide areas of the mechanical seal are clean and do not contain
any hard solid particles – solid particles in the slide areas may cause break down of
the mechanical seal.
Mechanical seals have to be replaced as a complete set. Replacing just the static or
the rotating face of the mechanical seal leads to strong and fast wear of the sliding
faces.
Static Ring of the
mechanical seal
Rotating Ring of the
mechanical seal