Engineered Air HVAC Unit LM-4-K

Select the shaft diameter for grease quantity

Is the bearing rotating slowly during lubrication?

Is a lithium base lubricant being used?

Are extended lubrication lines provided?

Ensure not to overgrease the bearings

Ensure not to use non-lithium based grease

Refer to the fan and/or bearing manufacturers’ literature for additional information

Lubrication of Dodge Fan Bearings — Spherical Roller Bearing, Solid Pillow Block

Determine re-lubrication schedule based on shaft diameter and speed (RPM)

Is it safe to re-lubricate while running?

Re-lubricate until some purging occurs at seals

Adjust lubrication frequency based on condition of purged grease

Double lubrication frequency for 24-hour operation

Lubricate with multipurpose roller bearing NLGI No. 2

Lubricate bearings prior to extended shutdown or storage

Disconnect and lock out power before servicing

Check for mold or biological growth

Clean and sanitize affected areas

Check all wiring for loose connections

Check voltage at unit while in operation

Check amperage draw against unit rating plate

Inspect contactors for clean and good contact

Refer to motor manufacturer for lubrication recommendations

Remove grease drain plugs and operate motor for 15 minutes before replacing plugs

Ensure not to over grease the motor

Recommended Motor Lubrication Intervals for motors over 40 HP (29.8 kW)

Grease motors running in severe conditions as specified by the manufacturer

Electric Heat — Electrical Inspection

Check and tighten all electrical connections

Were all connections secure after tightening?

Describe any issues found during inspection