Zuwa COMBISTAR 2000-A, Руководство по эксплуатации

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ZUWA Impeller Pumps
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8. Maintenance
Danger
Danger of death due to electric shock
> Prior to work on the pump, always disconnect the drive from the power
supply.
8.1 Routine inspection
> Regularly check the line connections for leaktightness (particularly on intake side)
8.2 Disassembling the pump
8.2.1 Series 2000-A and 2000-B
1. Disconnect line connections
2. Unscrew bolts on the pump side
3. Remove cover and side disc (lateral discs only on UNISTAR and
COMBISTAR pumps)
4. Pull housing with impeller and rear side disc off the shaft
8.2.2 Series 2001-A and 2001-B
1. Disconnect line connections
2. Remove bolts and nuts
3. Remove feet
4. Remove cover with shaft and lateral discs on both sides (no lateral discs in
NIROSTAR pumps)
8.3 Replacing components
rotation
Outlet
Intake
Impeller
1. Push impeller out of the casing
2. Insert a new impeller. Observe
direction of impeller vanes (see
adjacent illustration): Impeller wings
must be bent to the opposite side of
the rotating direction.
To change the impeller more easily there is a
tool. See chapter 9.4 „Impeller tool“.
Lateral discs
> Turn around or replace
The pumps of the NIROSTAR series are not fitted with lateral discs.