KSB KWP-Bloc - Fitting the Impeller

7 Servicing/Maintenance
46 of 64
KWP-Bloc
Installing mechanical seal MG1-G6
CAUTION
Contact of O-ring with lubricant made of mineral grease or oil
Damage to the O-ring!
▷ Make sure that O-rings made of ethylene propylene rubber cannot come into
contact with mineral oil or mineral grease.
▷ Make sure that O-rings made of silicone rubber cannot come into contact with
silicone oil or silicone grease.
CAUTION
Use of grease or other permanent lubricants
Hinders torque transmission! Overheating of and damage to the pump!
▷ If required, use soft soap to reduce friction.
Do not use grease or other permanent lubricants.
▷ Do not coat seal faces with grease or oil.
ü The bearing assembly and the individual parts of mechanical seal 433.02 are kept
in a clean and level assembly area.
ü All dismantled parts have been cleaned and checked for wear.
ü Any damaged or worn parts have been replaced by original spare parts.
ü The sealing surfaces have been cleaned.
1. Insert O-ring 412.08.
2. Fit the mating ring
3. Fit the oil ring, if any.
4. Fit discharge cover 163 on intermediate lantern 146.
5. Fasten hexagon nuts 920.15 (on pump sizes 50-200 and 65-200 socket head cap
screws 914.22).
6. Slide the rotating assembly onto shaft protecting sleeve 524.01 and fasten it.
7. Slide O-ring 412.06 onto shaft protecting sleeve 524.01.
7.5.4 Fitting the impeller
ü The assembled bearing with shaft seal as well as the individual parts are kept in a
clean and level assembly area.
ü All disassembled parts have been cleaned and checked for wear.
ü Any damaged or worn parts have been replaced by original spare parts.
ü The seal faces have been cleaned.
ü Impeller bore, shaft and keyways are clean and free from burrs.
1. Insert keys 940.01 into the shaft keyway.
2. Fit the impeller with an impeller fitting and removal tool.
3. Insert O-ring 412.03.
4. Insert and tighten impeller screw 906.
Observe the tightening torque. (ðSection7.6.1,Page47)