KSB EtaLine Pro, Installation And Operating Manual

Page: 65 / 76

8 Servicing/Maintenance
65 of 76
EtaLine Pro
1168.87/01-EN
Coat the locating surfaces of the individual components with graphite or similar
before reassembly.
Tightening torques For reassembly, tighten all screws and bolts as indicated.
8.5.2 Installing the mechanical seal
Installing the
mechanical seal
The following rules must be observed when installing the mechanical seal:
▪ Work cleanly and accurately.
▪ Only remove the protective wrapping of the seal faces immediately before
installation takes place.
▪ Prevent any damage to the sealing surfaces or profiled gasket.
ü The notes and steps stated in ( ð Section 8.5.1, Page 64) have been observed/
carried out.
ü Motor 801 with fitted casing cover 161 as well as individual parts have been
placed in a clean and level assembly area.
ü All dismantled components have been cleaned and checked for wear.
ü Any damaged or worn components have been replaced with original spare parts.
ü The sealing surfaces have been cleaned.
1. Clean the mating ring seat in casing cover 161.
CAUTION
Elastomers in contact with oil/grease
Shaft seal failure!
▷ Use water as assembly lubricant.
▷ Never use oil or grease as assembly lubricant.
2. Carefully insert the mating ring with profiled gasket. Make sure to apply
pressure evenly.
3. Fit the rotating assembly of mechanical seal 433 (primary ring) on the shaft of
motor 801.
8.5.3 Fitting the impeller
ü The notes and steps stated in ( ð Section 8.5.1, Page 64) to
(
ð
Section 8.5.2, Page 65) have been observed/carried out.
ü The pre-assembled unit (motor, cap, drive lantern, casing cover) as well as the
individual parts have been placed in a clean and level assembly area.
ü All dismantled components have been cleaned and checked for wear.
ü Any damaged or worn components have been replaced with original spare parts.
ü
The sealing surfaces have been cleaned.
1. Insert key 940 and slide impeller 230 onto the shaft of motor 801.
2. Fit nut 920 and lock washer 930. Observe the tightening torques.
(
ð
Section 8.6, Page 66)
CAUTION
Improper reassembly
Damage to the impeller and pump set!
▷ Lock washer 930 must not be used more than once.