Bearings Inspection; Wear Rings Inspection And Replacement (Not Applicable For 3703/3700Lf) - Goulds Pumps 3700 Installation, Operation And Maintenance Manual

Maintenance

Bearings inspection

Condition of bearings
Do not reuse bearings. The condition of the bearings provides useful information on operating
conditions in the bearing frame.
Checklist
Perform these checks when you inspect the bearings:
• Inspect the 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.
• 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.
Replacement bearings
Table 6: 3700 bearings based on SKF / MRC designations
Replacement bearings must be the same as, or equivalent to, those listed in this table.
Group
SA
MA
SX
MX, LA
LX, XLA
XLX
XXL

Wear rings inspection and replacement (Not applicable for 3703/3700LF)

Wear ring types
All units are equipped with casing, impeller, and seal-chamber cover wear rings. When
clearances between the rings become excessive, hydraulic performance decreases substan-
tially.
Wear ring diameter check
Measure all wear ring diameters and then calculate the diametrical wear ring clearances. See
the Minimum running clearances table for more information.
78 Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance
Radial (inboard)
6210 C3
6211 C3
6212 C3
6213 C3
6215 C3
6218 C3
6215 C3
Thrust (outboard)
7310 BEGAM
7311 BEGAM
7312 BEGAM
7312 BEGAM
7313 BEGAM
7317 BEGAM
7318 BEGAM
Manual