Removing The Mechanical Seal And Motor Section - KSB Amarex Installation & Operating Manual

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7 Servicing/Maintenance
Fig. 21: Forcing screw
NOTE
The forcing screw is not included in the scope of supply. It can be ordered
separately from KSB.

7.4.4 Removing the mechanical seal and motor section

NOTE
Special regulations apply to repair work on explosion-proof pump sets.
Modifications or alteration of the pump sets can affect explosion protection and
are only permitted after consultation with the manufacturer.
NOTE
The motors of explosion-proof pump sets are supplied in "flameproof enclosure"
type of protection. Any work on the motor section which could affect explosion
protection, such as re-winding and repair work involving machining, must be
inspected by an approved expert or performed by the motor manufacturer. No
modifications must be made to the internal configuration of the motor space.
Repair work at the flameproof joints must only be performed in accordance with
the manufacturer's instructions.
ü The oil has been drained.
1. Slide primary ring 433.02 along the shaft.
2. Undo and remove screws 914.74.
3. Take off discharge cover 163.
4. Remove mating ring 433.02 from discharge cover 163.
5. Remove circlip 932.03.
6. Remove spring–loaded ring 433.01.
7. Remove circlip 932.08.
8. Remove the assembly consisting of bearing housing 350 and rotor 818.
9. Remove circlip 932.04.
10. Pull bearing housing 350 off the rolling element bearing.
11. Remove mating ring 433.01 from bearing housing 350.
12. Remove circlip 932.02.
13. Remove rolling element bearing 320 (reinforced version) or 321.02 (standard
version).
14. Pull off rolling element bearing 321.01.
Amarex