Goulds Pumps 3298 - IOM - Manual (Page 64)

Maintenance
13. Remove the lip seal (333D).
Figure 34: Lip seal removal
Preassembly inspections
Inspect pump parts according to the following criteria before reassembly in order to make sure
the pump will run properly. Replace any part that does not meet the required criteria.
Casing
Inspect the casing for excessive wear, abrasive damage, cuts, or a loose liner.
Spider bearing
Inspect the spider bearing for cracks, chips, or scoring.
Impeller
• Inspect the leading and trailing edges of the vanes for erosion damage.
• Inspect the impeller for cracks and grooves in excess of 0.03 in. (0.75 mm).
• Check the impeller for blocked passages.
Back wear ring
Inspect the back wear ring according to the clearances in the Back wear ring clearances table.
Table 7: Back wear ring clearances
Size New clearance inches Replace at inches (millimeters)
(millimeters)
1 x 1½-5 No wear ring No wear ring
1½ x 2-6
1 x 1½-6
1 x 1½-7
1 x 1½-8
2 x 3-6
1½ x 3-8
1 x 1½-8
3 x 4-7
0.060 - 0.066 (1.52 - 1.68) 0.090 (2.3)
2 x 3-8
1 x 2-10
62 3298 Family Installation, Operation, and Maintenance Manual