Engineered Air HVAC Unit DJ-60

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

Note any severe conditions affecting motor operation

Recommended Motor Lubrication Intervals for motors 10-40 HP (7.5-29.8 kW)

Verify the presence of filters on the air inlet of VFD enclosures

Is the filter replacement based on calendar scheduling?

Enter the scheduled interval for filter replacement (in months)

Is the filter replacement based on visual inspection?

Inspect the filters for pollutant loading

Is the bearing rotating slowly during lubrication?

Is a lithium base lubricant being used?

Are extended lubrication lines provided?

Enter the shaft diameter in inches

Enter the grease quantity used in ounces

Is the bearing temperature under 120°F (50°C) in a dusty environment?

Is the bearing temperature under 158°F (70°C) in a clean environment?

Is the bearing rotating slowly during lubrication?

Is a lithium base lubricant being used?

Enter the shaft diameter in inches

Enter the grease quantity used in ounces

Is the grease quantity correct according to the shaft diameter?

Are extended lubrication lines provided?

Close the upstream manual gas valve

Connect a ¼” (6mm) tube to the outlet pressure tap on the safety shutoff valve

Immerse the opposite end of the ¼” (6mm) tube vertically ½” (13mm) into a clear container of water

Count the number of bubbles appearing during a 10 second period

Is the bubble rate greater than that noted in the manufacturer's table?

If the bubble rate is greater than noted, choose the action taken

If bubble rate is less than noted, remove the ¼” (6mm) tube and reconnect the outlet pressure tap plug