Baldor Reliance Electric Motor 8040-AF-OPEN

Section 3 – RENK Sleeve Bearing Replacement

Is the bearing liner worn, damaged, or does the bearing temperature monitoring indicate excessive temperature?

Disconnect all electrical power from the motor windings and accessory devices before disassembly of the motor

Remove the top and bottom bearing liners as stated in RENK Sleeve Bearing Removal Instructions

Ensure the shaft bearing shoulders and journal are free of nicks and burrs before replacing bearing

Dress shaft with emery cloth or stone as necessary

Clean the shaft and oil sump thoroughly

Apply a coating of oil to the bearing journal

Inspect the replacement bearing for nicks and damage

Section 3 – Periodic Inspection

Listen for any abnormal noises and check cause immediately

Check for any vibration and check cause immediately if excessive vibration is found

Check voltage and frequency variations

Check power supply total harmonic distortion

Periodic checks of phase, voltage, frequency, and power consumption of an operating motor are recommended

Check to see that air filters, when used, are in place and clean

Check all air passages and ensure that they are not blocked or clogged

Section 3 – Anti-Friction Bearing (Grease Lubricated)

Locate motor nameplate for relubrication intervals and volumes

Refer to motor nameplate for recommended lubricant

If no lubricant is shown, use Mobil Polyrex EM

Check alternate lubricants for specific operating temperatures

Ensure grease is clean and fresh from clean containers

Verify grease compatibility before mixing

Section 3 – Anti-Friction Bearing Removal/Replacement

Ensure equipment connected to the motor shaft cannot cause shaft rotation

Disconnect all electrical power from the motor windings and accessory devices

Replace bearing when worn, oversize, or when TRG/bearing temperature monitoring indicates excessive wear

Remove the bearing using a conventional bearing puller

Protect the shaft center using a spacer block of bass or soft material

Clean and inspect all parts, removing all old grease

Ensure all shaft bearing shoulders and journals are free of nicks

Section 3 – Anti-Friction Bearing (Grease Lubricated) – Extreme Conditions

Verify applicable motor conditions

Identify extreme conditions present

Ensure lubrication procedure follows the 6 Monthly task guidelines

Check relubrication intervals and volumes on the main motor nameplate

Ensure grease is free of dirt to avoid damage to motor bearings

Is the shaft stationary and motor warm?

Stay clear of rotating parts and electrical circuits if lubrication is done with motor running