Goulds Pumps 3393 - IOM - Manual (Page 59)

Maintenance
11. Bend back the lock washer tab (382) and remove bearing nut (136A) and lock washer
(382).
12. Remove ball bearings (409) with the bearing puller.
Disassembly of the mechanical seal - end and radial suction pumps
Mechanical seals are located on the suction side (RS configuration) and discharge side (RS
and ES configurations). Mechanical seals are cartridge type seals and these instructions refer
to cartridge seals. If other seals are used, refer to the seal manufacturer's instructions.
WARNING:
The mechanical seal used in an Ex-classified environment must be properly certified. Prior to startup,
make sure that all areas that could leak pumped fluid to the work environment are closed.
CAUTION:
Never operate the pump without liquid supplied to mechanical seal. If you run a mechanical seal dry,
even for a few seconds, this can cause seal damage. Physical injury can occur if a mechanical seal fails.
See relevant sectional drawing and mechanical seal vendor's installation instructions.
1. Remove the seal guards (499). These are not shown but cover the openings in the bearing
frame.
2. Disconnect any seal flush piping connected to the gland.
3. Locate and reinstall setting clips and clip screws from initial installation if seal is to be
reinstalled. This is necessary to properly install seal.
Model 3393 Installation, Operation, and Maintenance Manual 57