Bell & Gossett MK MV (8202, 8202X) - Manual (Page 40)

Service item Action
Support and main bearing Replace the bearings with new bearings.
Mechanical seal Replace with new seal units.
Service in case of alarm
For information about indication values for sensors, see Sensor connection characteristics
(page 29).
Replace the impeller
WS000133A
Figure 10: D-impeller
WS000133A
Figure 11: K-impeller
Required tools:
• 8 mm hexagon bit adapter with an extension of at least 125 mm (4.92 in.)
• Impeller puller
If applicable, contact your local sales and service representative for correct type and
size.
• Rod (wooden or copper) for locking the impeller in place, if applicable.
• Two crowbars, if applicable
WARNING:
• If you fail with the impeller installation, you must redo the installation procedure from the
beginning.
• A worn impeller and/or pump housing can have very sharp edges. Wear protective
gloves.
• When laying the pump on its side, do not allow the weight of the pump to rest on any
portion of the impeller. The impeller must not be allowed to make contact with the
concrete floor or other hard and rough surfaces.
Remove the impeller: D, K
1. Remove the pump housing:
Maintenance
38 MK, MV (8202, 8202X) Installation, Operation, and Maintenance Manual