Goulds Pumps 3296 EZMAG - IOM - Manual (Page 60)

Maintenance
11. Pull the backplate (444) and bearing cartridge (849) from the shaft.
1. Backplate (444)
2. Cartridge-to-backplate hex screw (791E)
3. Parallel pin (445A)
4. Driven carrier assembly (740A)
5. Bearing cartridge assembly (849)
6. Intermediate ring spacer (351X)
12. Remove the second gasket (351X).
13. Undo the screws (791E) and remove the bearing cartridge (849) from the backplate (444).
The driven magnet assembly (740A) is a two-piece assembly on S-group pumps held with
a drive-key. Item 740A is a single-piece component on M-group pumps with a parallel pin
(445A) to drive the bearing cartridge.
The bearing cartridge (849) is one unit that is replaced completely.
Pre-assembly inspections
Guidelines
Before you assemble the pump parts, make sure you follow these guidelines:
• Inspect the pump parts according to the information in these pre-assembly topics before
you reassemble your pump. Replace any part that does not meet the required criteria.
• Make sure that the parts are clean. Clean the pump parts in solvent in order to remove oil,
grease, and dirt.
NOTICE:
Protect machined surfaces while you clean the parts. Failure to do so may result in
equipment damage.
Replacement guidelines
Casing check and replacement
WARNING:
Avoid death or serious injury. Leaking fluid can cause fire and/or burns. Inspect and assure gasket sealing
surfaces are not damaged and repair or replace as necessary.
Inspect the casing for cracks and excessive wear or pitting. Thoroughly clean gasket surfaces
and alignment fits in order to remove rust and debris.
Repair or replace the casing if you notice any of these conditions:
• Localized wear or grooving that is greater than 1/8 in. (3.2 mm) deep
• Pitting that is greater than 1/8 in. (3.2 mm) deep
58 Model 3296 EZMAG Installation, Operation, and Maintenance Manual