KGE/EN (1711) 6.5 Disassembly and assembly 33
KGE
7 Disassembly and assembly
7.1 General
• When servicing the pumps, see to a clean working environment because certain parts,
say, the mechanical seals, are extremely vulnerable, other parts having close
tolerances. Check that the parts have not been damaged in transit. In particular,
inspect the spigots mating and sealing faces, etc.
• Loctite liquid securing type 243 is used for securing the impeller screw or impeller
bolt.
When Loctite is used, first degrease the parts properly. The Loctite must be applied in
sufficient quantities both internally and externally and the bolts tightened up to the torque
settings shown in table below:
7.2 Replacing the impeller
Also refer to sectional drawings
Material bolt Max. tightening torque Nm Application
8.8 11 25 51 87 215 Bearing bracket, lantern piece
A2 / A4 8,5 21 42 70 173 Impeller
Impeller fixation
Bearing bracket 00
stainless steel bolt with tolerance ring (on KGEF)
or with key (KGE) and washer.
Bearing bracket 0 and 0+ stainless steel bolt with key and washer
Bearing bracket 1 and 2 stainless steel nut with key and washer
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