Goulds Pumps 3296 EZMAG - IOM - Manual (Page 63)

Maintenance
Checklist
Perform these checks when you inspect the bearings:
• Inspect the ball bearings for contamination and damage.
• Note any lubricant condition and residue.
• Inspect the ball bearings to see if they are loose, rough, or noisy when you rotate them.
• Inspect the silicon carbide bearings for cracks, chips, or excessive wear. If any of these
conditions exist, replace the bearing cartridge.
• Investigate any bearing damage to determine the cause. If the cause is not normal wear,
correct the issue before you return the pump to service.
Minimum running clearances
This table provides the radial wear ring clearances:
Group Size New, inches (mm) Replace, inches (mm)
S 1 x 1½ - 6 0.020–0.024 (0.51–0.61) 0.029 (0.74)
1 x 1½ - 6G
1½ x 3 - 6
2 x 3 - 6
1 x 1½ - 8
1 x 1½ - 8H
1½ x 3 - 8
2 x 3 - 8
M 1½ x 3 - 10 0.028–0.031 (0.71–0.79) 0.036 (0.91)
3 x 4 - 7
4 x 4 - 8G
3 x 4 - 10
1 x 2 - 10
2 x 3 - 10
1½ x 3 - 13
Reassembly
Reassemble the frame assembly and shaft (frame-mounted pumps)
1. Press both radial ball bearings (112) onto the drive shaft (122B).
Model 3296 EZMAG Installation, Operation, and Maintenance Manual 61