KSB Vitachrom, Installation & Operating Manual

Page: 50 / 72

7 Servicing/Maintenance
50 of 72
Vitachrom
Adjusting the clearance gap using a spacer plate
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. Clamp the spacer plate
11)
(0.7 mm thickness) between impeller and casing.
2. Firmly bolt casing 103.01 to drive lantern 341.01 or discharge nozzle 163.01.
Tightening torque ( ð Section 7.6.1, Page 50)
3. Slip the impeller onto the spacer plate.
4. 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.
5. Dismantle the pump casing
6. Remove the spacer plate.
7. Fit the pump casing
7.5.6 Checking inducer run-out
On inducer version only:
ü The notes and steps stated in ( ð Section 7.5.1, Page 45) bis
( ð Section 7.5.5, Page 49) have been observed/carried out.
1. Once clamping ring 515.01 has been tightened, check inducer run-out.
Maximum run-out: 0.15 mm
7.6 Tightening torques
7.6.1 Tightening torques for the pump set
A
B
C
D E
Fig. 10: Tightening points
Table 22: Tightening torques [NM] for bolted/screwed connections at the pump
Position Thread
A M10 38
11) Spacer plates can be purchased from KSB.