Baldor Reliance Electric Motor 10840-AF-LV

Section 3 – Sleeve Bearings (Oil Lubricated)

Select lubricating oil based on conditions

Ensure pour point is below minimum starting temperature

Use a good grade turbine type oil (rust, foam and oxidation inhibited)

Avoid automotive oils or additives not recommended by the oil manufacturer

De-energize the motor by opening the manual disconnect switches

Remove drain plug and drain oil

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 – Checking Insulation Resistance

Check the insulation resistance of the stator winding with an insulation resistance meter

Record the insulation resistance value

Investigate and take corrective action if there is a significant change in insulation resistance

Calculate the minimum insulation resistance (RM) using the formula RM = KV + 1

Compare the insulation resistance reading with the calculated RM

If insulation resistance is less than RM, dry out the windings

Bake in an oven at a temperature not to exceed 90°C until insulation resistance remains constant

Section 1 – Storage (less than 6 months) – Horizontal Motors with Sleeve Bearings

Fill the bearing oil reservoir to the indicated level with the proper lubrication oil

Pour 4 to 6 ounces of oil onto the bearing liner before rotating the shaft

Rotate the shaft 10-15 revolutions to redistribute the lubricant

Ensure the shaft blocking is removed before rotating the shaft

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