Dismantling The Mechanical Seal; Dismantling The Pump-End Mechanical Seal; Dismantling The Motor-End Mechanical Seal - KSB Sewatec Installation & Operating Manual

56 of 94
7 Servicing/Maintenance
Size Impeller type
200-316 K
200-317 K
200-318 K
200-400 D
200-402 K
200-402 D
200-403 K
200-405 D
250-400 D
250-401 K
250-402 D
250-403 K
300-400 D
300-400 K
300-401 K
300-402 D

7.4.7 Dismantling the mechanical seal

433.02
210
330
Fig. 25: Dismantling the mechanical seal

7.4.7.1 Dismantling the pump-end mechanical seal

ü The back pull-out unit and the impeller have been removed as described above.
1. Pull the rotating assembly of mechanical seal 433.01 off shaft 210.
2. Remove discharge cover 163 from bearing bracket 330.
3. Press the stationary seat of mechanical seal 433.02 out of discharge cover 163.

7.4.7.2 Dismantling the motor-end mechanical seal

ü The back pull-out unit and the impeller have been removed as described above.
1. Remove locking ring 515 or circlip 932.03.
2. Pull the rotating assembly of mechanical seal 433.01 off shaft 210.
Sewatec
Forcing screw (ADS)
Thread
M 20
M 20
M 20
M 24
M 20
M 24
M 20
M 24
M 24
M 20
M 24
M 20
M 24
M 20
M 20
M 24
163
433.01
515 / 932.03
Code
ADS 2
ADS 2
ADS 2
ADS 5
ADS 5
ADS 5
ADS 5
ADS 5
ADS 5
ADS 5
ADS 5
ADS 5
ADS 5
ADS 5
ADS 5
ADS 5