8 Servicing/Maintenance
55 of 104
mini-Compacta
2317.886/16-EN
99-15
1
0
421.01
421.02
920.02
Fig. 27:
Fitting the shaft seal
2. Fill the grease reservoir with multi-purpose grease 99-15 (DIN 51 825).
3. Secure the hexagon impeller nut 920.02 with a suitable metal adhesive (e.g.
Loctite
®
).
mini-Compacta US40
1. Press lip seals 421.01 and 421.02 into bearing end shield 360, making sure the
sealing lips point towards the impeller. When pressing in the motor-end shaft
seal ring 421.01, observe the installation depth of 10 mm (see Fig.).
99-15
1
0
421.01
421.02
914.05
Fig. 28:
Fitting the shaft seal
2. Fit lip seal 421.02 (WASY FKM, pressurisable) at the impeller end.
3. Fill the grease reservoir with multi-purpose grease 99-15 (DIN 51 825).
4. Slide deep groove ball bearings 321.01 (6201-2RSR/C3) and 321.02 (6305-2RS1-
JC3) onto shaft 210. (
5. Guide shaft 210 through bearing end shield 360. Fasten it above the bearing
seat with circlip 932.
6. Insert O-ring 412.01.
7. Fit motor unit 80-1 on pump rotor 818 with bearing end shield 360. Fasten it
with hexagon socket head cap screws 914.01.
mini-Compacta US100, UZS150 and variant C
ü
Utmost care and cleanliness are observed.
ü
The surfaces in the shaft area are clean and even.
1. Remove the protective wrapping of the seal faces immediately before assembly
takes place.
2. Press in lip seal 421.01, making sure the sealing lip points towards the impeller.
3. Fit mechanical seal 433.
4. After reassembly fill the oil reservoir with oil again. (
