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:iiii 1717 .......... 7 i ii ................ Troubleshooting

11.5.4 Sleeve
Wear from Seal~Packing
9 Change to non-fretting mechanical seal

9 Upgrade the material selection
9 Use less abrasive packing
9 Control the solids in pumpage
Damaged by seal removal
9 Change to non-fretting mechanical seals that don't require
sleeves
Corrosion
9 Upgrade the material selection

11.S.S Bearings

Inadequate lubricant

9 Check lubricant supply
9 Change to oil sight glass
Rotor imbalance
9 Balance rotor
Lubricant contamination

9 Change to bearing isolators
9 Remove breather cap and plug connection
9 Paint inside of bearing housing
Overheating
9 Check fits on shaft

9 Check fits on housing
9 Check for adequate lubrication
9 Use cooling coil
Shaft misalignment
9 Skills training needed

9 Use a C-flange motor
Shaft deflection
9 Check for low flow. (See Figure 11.3)

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