Baldor Reliance Electric Motor 9240-AF-LV

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 following conditions are met

Verify air filter specifications

Measure static air pressure drop across the filters

Is the static air pressure drop across the filters 0.50" W.G. (123.3 N/m² gauge) or higher?

Did the Differential Air Pressure Switch activate at 0.5" W.G. differential?

Clean or replace air filters if necessary

Section 3 – Sleeve Bearings (Oil Lubricated) – Severe and Extreme Conditions

Is the oil discolored or contaminated?

Follow the oil change procedure as per the standard Sleeve Bearing Oil Change task

Select oil viscosity and quality as per Table 3-4 and Section 3 Sleeve Bearings (Oil Lubricated)

De-energize the motor by opening the manual disconnect switches

Remove drain plug and drain oil

Does the oil appear to be contaminated?

Section 3 – Semi-Annual Maintenance − 6 months

Perform all quarterly inspections (see 3 Monthly Motor Periodic Inspection task)

Inspect and clean rotor ends, windings and fan blades (Open Motors only)

Check electrical connections for tightness and absence of corrosion

Section 3 – Winding Maintenance

WARNING — Solvents can be toxic and/or flammable — follow manufacturer's safety procedures and directions — failure to observe this precaution could result in bodily injury

CAUTION — Do not use solvents containing trichloroethane to clean interior or exterior of motor — damage may occur to paint and insulation systems

Disconnect and lockout the power source

Ensure no power is applied to the motor

Section 3 – Checking Insulation Resistance

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

Record the insulation resistance reading

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 insulation resistance readings to the calculated RM

Dry out the windings if insulation resistance is less than RM

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