9.
Remove circlip 932.02 and support disc 550.02.
10. Carefully pull the rotating assembly of mechanical seal 433 off shaft 210.
8.3.5
Dismantling the motor section
mini-Compacta US100, UZS150
1.
Remove hexagon socket head cap screw 914.01.
2.
Press rotor 818 with motor unit 80-1 and bearing bracket 330 out of casing
cover 161.
3.
Take O-ring 412.04 and the stationary assembly of mechanical seal 433 out of
casing cover 161.
4.
Remove rotor 818 with bearing bracket 330 from motor unit 80-1.
NOTE
Place a suitable object (e.g. a cylinder, diam. 15 x 15 mm) against the face of shaft
210 and use the screw plug to press the shaft out of motor housing 811.
5.
Take O-ring 412.02 out of bearing bracket 330.
6.
Remove O-ring 412.01 and circlip 932.01.
7.
Separate the bearing bracket with lip seal 421.01 from bearing 321.01.
8.
Remove the lip seal from the bearing bracket.
9.
Pull off deep groove ball bearings 321.01 (6201-2RSR/C3) and 321.02
(6305-2RS1-JC3).
8.4 Reassembly
8.4.1
General instructions
Observe the following points for reassembly:
The pump shall be reassembled in accordance with the general rules of sound
engineering practice.
Clean all dismantled components and check them for signs of wear.
Replace damaged or worn parts by original spare parts.
Make sure that the sealing surfaces are clean and that O-rings are properly seated.
We recommend using new O-rings/gaskets whenever the pump is reassembled.
CAUTION
O-rings do not seal properly
Damage to the lifting unit!
▷
Use original O-rings.
▷
Do not use O-rings cut from material sold by the metre.
The shaft surface must be absolutely clean and undamaged.
Reassembly is effected in reverse order to dismantling.
Use the general assembly drawing and the list of components for orientation.
After reassembly measure the insulation resistance. (
8.4.2
Fitting the bearing assembly/shaft seal
mini-Compacta U60, U100, UZ150
NOTE
We recommend fitting new bearings/shaft seals whenever the motor section has
been dismantled.
8 Servicing/Maintenance
mini-Compacta
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