United Metal Products Evaporative Cooler UMP-644S

Remove pad frame from cabinet by lifting from the bottom edge and pulling outward, then letting it drop.

Is it necessary to wash dirt and scale from pad frame with a mild detergent?

Wash dirt and scale from pad frame with a mild detergent if necessary.

Turn off the water supply to the cooler

Unscrew and remove the standpipe to allow the water to drain down

Ensure no water is left standing in the unit for prolonged periods

Apply a coat of high quality sub-sealer to painted galvanized steel reservoirs

Gently hose stubborn deposits from the face of the evaporative media with fresh water

Measure belt movement when pressed at mid-span

Is the belt tension within the acceptable range?

Check alignment of motor and fan sheave grooves

Are the sheaves aligned properly?

Was the belt alignment corrected?

Is there scale build-up on the pads?

Are the pads scaled and plugged?

Hose down pads to clean away dirt and salt particles

Are the pads too blocked, reducing cooling efficiency and air delivery?

Remove outer access panels and internal media cover plate

Ensure guards are installed when the rotating fan prop or wheel is operating above an occupied space or within 7ft of working area or whenever deemed advisable for safety reasons.

Place the motor on the adjustable motor base

Adjust motor to assure proper belt tension