Bell & Gossett DN0177 B Domestic Pump Centrifugal Pumps Series C35 - Manual (Page 18)

8. Remove the motor and bracket assembly from the volute by lifting straight away from
the volute.
9. Remove the impeller from the motor shaft:
If... Then...
The motor shaft is
threaded
Hold the end of the motor shaft that is opposite the pump with a large screwdriver
or other suitable tool and back off the impeller with a rectangular bar or other flat
tool inserted between the vanes of the impeller.
The motor shaft is
keyed
Remove the impeller with a gear puller or other means that will not damage the
impeller or bend the motor shaft.
10. Remove the rotating part of the seal from the shaft.
Take care not to break the carbon face.
11. Remove the capscrews that hold the motor bracket to the motor and remove the
bracket.
12. Remove the stationary part of the seal assembly.
Take care not to chip or break the ceramic seal.
Disassemble the Series C17 and C35 pump (except model 609)
CAUTION:
Pressurized device. The system may contain very hot water. Close the inlet and open the
drains before servicing the unit. Loosen screws and move components in order to make
sure that pressure is relieved before you remove the screws. Keep the drains open while
you service the unit.
1. Loosen the capscrews that hold the motor bracket to the pump volute.
2. Make sure that the pressure has been relieved before proceeding.
3. Remove the loosened hardware.
4. Remove the pump and motor assembly and place it on a workbench.
5. Remove the self-locking stainless steel capscrews and the stainless steel washer, or the
self-locking brass cap nut and washer, that secure the impeller in place.
6. Remove the impeller from the motor shaft:
If... Then...
The motor shaft is
threaded
Hold the end of the motor shaft that is opposite the pump with a large screwdriver
or other suitable tool and back off the impeller with a rectangular bar or other flat
tool inserted between the vanes of the impeller.
The motor shaft is
keyed
Remove the impeller with a gear puller or other means that will not damage the
impeller or bend the motor shaft.
7. Remove the rotating part of the seal from the shaft.
Take care not to break the carbon face.
8. Remove the capscrews that hold the motor bracket to the motor and remove the
bracket.
9. Remove the stationary part of the seal assembly.
Take care not to chip or break the ceramic seal.
Maintenance
16 Domestic ® Pumps Centrifugal Pumps Series B35, C17, C35 Installation, Operation, and Maintenance Manual