SPXFLOW CombiFlexBloc Series, Instruction Manual

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CFB/EN (1808) 2.4
Disassembly and assembly 35
CombiFlexBloc
5 Push the rotating part of the seal onto the pump shaft. The bellows should slide
smoothly over the shaft. Put some glycerine or silicon spray on it.
6 Fit the stuffing box cover in the right position in the fitting edge of the bearing bracket.
Check whether the stuffing box cover is at right angles to the pump shaft.
7 Fit the mechanical seal cover (1230) to the stuffing box cover. Check the position in
view of the connection points. Tighten the nuts (1810) crosswise. The cover should
not be placed oblique.
8 Mount the shaft sleeve (1200).
9 Fit the impeller and other parts, see paragraph 7.5.2 "Mounting the impeller"
7.7.6 Disassembling a mechanical seal M2-M3
The item numbers used are referring to figure 12.
1 Remove the impeller, see paragraph 7.5.1 "Disassembling of the impeller"
2 Remove the nuts (1810) and the washers (1815) and push the mechanical seal cover
(1230) backward.
3 Mark the position of the stuffing box cover (0110) in relation to the bearing bracket
(2100). Knock the stuffing box cover loose and remove it.
4 Pull the shaft sleeve (1200) off the pump shaft. Loosen the set screw (n.a. for bellows
seal) and remove the rotating part of the mechanical seal from the shaft sleeve.
5 Pull the mechanical seal cover (1230) off the pump shaft. Push the counter-ring of
the mechanical seal through the shaft passage inward out of the cover
Figure 12: Mechanical seal M2-M3.
4049
M2
M3
X
X