7 Servicing/Maintenance
49 of 72
Vitachrom
7.5.5 Adjusting the clearance gaps
1
3
2
0,7 mm
Fig. 9:
Axial clearance between pump casing and impeller
1
Casing wall
2
Impeller
3
Axial clearance
Clearance gap: 0.7 mm
DANGER
Incorrect axial clearance
Explosion hazard!
▷
Re-adjust axial clearance between pump casing and impeller whenever
assembly/installation work is carried out.
ð
Use one of the methods described below to adjust the axial clearance.
Adjusting the clearance gap using a depth gauge
ü
The notes and steps stated in (
ð
Section 7.5.1, Page 45) to
(
ð
Section 5.2.1.1, Page 23) have been observed/carried out.
1. Firmly bolt casing 103.01 to drive lantern 341.01 or discharge nozzle 163.01.
Tightening torque (
ð
Section 7.6.1, Page 50)
2. Shift the shaft in such a way that the impeller will run freely without rubbing on
the casing when it is turned by hand several times.
This marks the "O" position which serves as starting point for setting the actual
clearance.
3. Introduce the depth gauge through the suction nozzle.
4. Set an axial distance of 0.7 mm between the inner pump wall (suction side) and
the front edge of the impeller vanes by shifting the shaft towards the back.
5. Firmly fix the impeller using clamping ring 515.01 and hexagon socket head cap
screw 914.01.
Make sure that the shaft slot of shaft 210.01 aligns with the slot of locking ring
515.01, and that they are located opposite the keyway of the motor shaft end.
Starting torque (
ð
Section 7.6.1, Page 50)
Summary of Contents for Vitachrom
Page 1: ...Hygienic Pump in Close coupled Design Vitachrom Installation Operating Manual ...
Page 68: ...Index 68 of 72 Vitachrom W Warnings 7 Warranty claims 6 ...
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