7. Insert stuffing box ring 454.01 so that the joint face is in vertical position to
gland follower 452.01.
8.
Fit gland follower 452.01 and lightly fasten it by hand with the two hexagon nuts
920.02; watch discs 550.01.
9. Install completely packed discharge cover 163 with joint ring 411.10 and shaft
protecting sleeve 524 in the pump and screw it to bearing bracket lantern 344.
10. Tighten hexagon head bolts 901.22.
Tightening torque (⇨ Section 7.6.1 Page 64)
7.5.5 Fitting the impeller
Bearing b r a c k ets P03ax, P0 4 a x , P05ax, P06x
✓ The assembled bearings with shaft seal as well as the individual parts are kept in
a clean and level assembly area.
✓ All disassembled parts have been cleaned and checked for wear.
✓ Any damaged or worn parts have been replaced by original spare parts.
✓ The sealing surfaces have been cleaned.
✓ Impeller bore, shaft and keyways are clean and free from burrs.
✓ The notes and steps stated in (⇨ Section 7.5.1 Page 54) to (⇨ Section 7.5.4 Page
56) have been observed/carried out.
1. Insert keys 940.01 into the shaft keyway.
2. Fit O-ring 412.06 on shaft sleeve 524.01.
3. Mount the impeller with an impeller mounting and removal device.
4. Insert O-ring 412.03.
5. Fit and tighten impeller screw 906.
Tightening torque (⇨ Section 7.6.1 Page 64)
6. Check the axial rotor alignment and re-align, if required.
Make sure the distance between the back vane/impeller 230 and discharge cover
163 is ≤ 1.5 mm.
Bearing b r a c k ets P08sx, P1 0 a x , P12sx:
✓ The assembled bearing/mechanical seal as well as the individual parts are kept in
a clean and level assembly area.
✓ All disassembled parts have been cleaned and checked for wear.
✓ Any damaged or worn parts have been replaced by original spare parts.
✓ The sealing surfaces have been cleaned.
✓ Impeller bore, shaft and keyways are clean and free from burrs.
✓ The notes and steps stated in (⇨ Section 7.5.1 Page 54) to (⇨ Section 7.5.4 Page
56) have been observed/carried out.
1.
Insert keys 940.01 into the shaft keyway.
2. Fit O-ring 412.06 on shaft sleeve 524.01.
3. Mount the impeller with an impeller mounting and removal device.
4. Insert disc 550.87 and lockwasher 931.02.
5. Tighten hexagon head bolt 901.87.
Tightening torque (⇨ Section 7.6.1 Page 64)
6. Fit impeller hub cap 260 with O-ring 412.03.
7. Check the axial shaft alignment. Re-adjust, if required.
Make sure the distance between the back vane/impeller 230 and discharge cover
163 is ≤ 1.5 mm.
7 Servicing/Maintenance
60 of 78
KWP
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