ZUWA Impeller Pumps
15
Seals
Replace O-rings and push firmly into the recesses
Replacing shaft gasket:
1. Remove retaining ring with suitable pliers
2. Push out bearing and shaft gasket
3. Push in new shaft gasket and bearing
4. Insert retaining rings
8.4 Assembling the pump
8.4.1
Series 2000-A and 2000-B
Assembly of the pump is the reverse of disassembly – see exploded drawing.
1. Connect side disc with punched hole at the rear of the casing (no lateral discs
in NIROSTAR pumps)
2. Push casing with impeller onto the shaft
3. Place front side disc into the recess and push cover onto this
4. Insert and tighten bolts
5. Attach
lines
The lateral discs and O-rings must lie precisely in the recesses to ensure
that the O-rings are not pinched.
8.4.2
Series 2001-A and 2001-B
Assembly of the pump is the reverse of disassembly – see exploded drawing.
1. Reapply lateral discs and covers and press on (no lateral discs in NIROSTAR
pumps)
2. Tighten both of the shorter bolts on the thread side using the nuts
3. Affix both feet
4. Insert both of the longer bolts on the bottom and tighten with the nuts
5. Attach
lines
The lateral discs and O-rings must lie precisely in the recesses to ensure
that the O-rings are not pinched.
