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.
Bearing-housing inspection
Checklist
• Inspect the bearing-housing (134) bore according to the bearing fits and tolerances table.
• Replace the bearing housing if the dimensions exceed acceptable values. Reference: see Bearings fits
and tolerances.
• Visually inspect the bearing housing for cracks and pits.
Checklist for specific models
This table shows bearing-housing checks that are required for specific models of pump.
Frame
Bearing-housing check
STi and MTi Ensure that the snap-ring groove is not cracked.
LTi Clear all grooves and holes.
XLT-i and i17 Clean the gasket surface.
Inspection locations
The following images point to the areas to inspect on the bearing housing.
Figure 27: STi and MTi bearing housing
Maintenance
92 Model 3196 i-FRAME Installation, Operation, and Maintenance Manual
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