5 Maintenance
Read the instructions carefully. The items refer to the parts list and service kits section.
Handle scrap correctly.
: Relates to the shaft seal.
Step 4
Double mechanical shaft seal:
Unscrew tubes (42) using a spanner.
Step 5
1. Remove impeller (27). If necessary, loosen the impeller by
knocking gently on the impeller vanes.
2. Remove the O-ring (38) from the impeller.
Counterhold with a screwdriver!
If necessary!
Step 6
1. Remove the O-ring (26) from back plate (25).
2. Unscrew nuts (20) and remove washers (21) and the back
plate (25).
Step 7
1. Remove the stationary seal ring (11).
2. Remove the O-ring (12) from back plate (25).
Use the tool
supplied
Left hand
thread!
Step 8
Double mechanical shaft seal:
1. Remove screws (41) and seal housing (40a).
2. Remove rotating seal rings (14) and drive ring (52) from spring
(13).
3. Remove O-rings (15) from rotating seal rings (14).
21
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