8. Continue removing the remaining chambers (4 or 4a), split-cone
nuts (48), split cones (49b), impellers (49 or 49a) and bearings
(47a).
For pumps with ∅28 or ∅36 pump shaft:
Note that for pumps with ∅28 or ∅36 pump shaft, you must also
remove the lock ring (47g). See the figure below.
Do not open the lock ring (47g) further than the
restriction of the integrated locking mechanism. See
the figure below.
TM072074
Maximum permissible opening of lock ring (47g)
9. Remove the inlet part (44).
10. To renew the chamber wear parts, see the section on renewing
chamber wear parts.
Related information
3.1.1 Removal
4.1.1 Servicing the chamber stack in service tool for vice mounting
4.1.2 Servicing the chamber stack in service tool for pump base
mounting
5.1 Neck ring (45)
7.3.1 Special tools
4.1.4
Assembling the chamber stack
For chamber types, see the section on order of assembly for
chambers and impellers.
1. Install the inlet part (44) over the pump shaft (51) which is
placed in service tool H1 or H2.
2. Fit the impeller (49 or 49a) which was removed as the last one
during dismantling.
3. Fit a split-cone (49b) in the impeller (49 or 49a).
4. Turn service tool C around and knock it against the split-cone
(49b) to fixate the impeller (49 or 49a) to the pump shaft (51).
See the figure below.
TM071896
Fixating the impeller (49 or 49a) to the pump shaft (51) with
service tool C
5. Fit a split-cone nut (48) to the impeller.
6. Hold the impeller (49 or 49a) with a hook spanner. Tighten the
split-cone nut (48) using the service tools C, O and P.
7. Lubricate and fit the bearing (47a).
8. For pumps with ∅28 or ∅36 pump shaft: Note that for pumps
with ∅28 or ∅36 pump shaft, you must also fit the lock ring
(47g). See the figure below. Make sure that the lock ring (47g)
tightens firmly around the pump shaft and holds the bearing
(47a) fixed on the pump shaft.
Do not open the lock ring (47g) further than the
restriction of the integrated locking mechanism. See
the figure below.
TM072073
Maximum permissible opening of lock ring (47g)
15
English (GB)
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