Baldor Reliance Electric Motor 9240-AF-OPEN

SECTION: Section 3 – RENK Sleeve Bearing Replacement

Condition-based: replace when bearing liner is worn, damaged, or bearing temperature monitoring indicates excessive temperature

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

1. The sleeve bearing may be replaced without disturbing the setup and uncoupling from the driven equipment

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

2. Make sure that 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

3. Apply a coating of oil to the bearing journal

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 to avoid overheating

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 – Horizontal Shaft Motors

Maintain proper lubricant level

Check oil level at midpoint of sight gauge when motor is at rest and in operation

Section 1 – Storage (less than 6 months)

Ensure grease lubricated bearings are not lubricated during storage

Verify Duty Master anti-friction bearing motors are shipped with the proper amount of grease in each bearing

Remove packing to expose the shaft and remove the shaft shipping brace every 30 days

Rotate the shaft by hand 10 to 15 revolutions to distribute grease or oil

Replace protective packing and shaft shipping brace after rotating the shaft

Inspect the motor periodically and check insulation resistance monthly

Is the storage location cold, damp, or humid?

Is the motor stored and directly exposed to weather conditions?

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

Verify applicable motor conditions

Describe the operating conditions

Ensure lubrication procedure follows the 6 Monthly task guidelines

Check relubrication intervals and volumes on the main motor nameplate

Is the shaft stationary and motor warm?

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

Locate the grease inlet, clean the area, and replace the pipe plug with a grease fitting if necessary