Alfa Laval LeviMag, Инструкция по эксплуатации, Страница: 24 / 68

5 Maintenance
It is important that the drive unit is dismounted before removing the impeller.
The maintenance interval for the mixer depends on the application - shorter or longer service interval may appear.
Handle the mixer with care and follow the recommended inspection to prevent unnecessary damage.
The clearance between female and male bearing should not exceed 0.15 mm.
If the value exceeds – Alfa Laval recommend changing both bearings.
A: Female bearing
B: Male bearing
(A)
(B)
4307-0030
Ø 
Ø 
Calculation of clearance:
female bearing, inner diameter (ID) – male bearing, outer diameter (OD) = clearance.
The highest wear is normally found at the upper and lower inner surface of the female bearing.
Each of the inspection components requires
disassembling of the mixer.
The disassembling must be carried out as listed in
the order:
1. Dismount the drive unit, see 5.3 Dismounting of
the drive unit.
2. Dismount the impeller and female bearing, see
section 5.5 Dismounting of the impeller and
section 5.7 Replacement of the female bearing.
3. Dismount the male bearing, see section 5.6
Replacement of the male bearing.
4307-0016
A
B
C
D
A: Impeller
B: Male bearing
C: Weld plate
D: Drive unit
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