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Documents & Manuals

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Tensioning Guide
Belt-diagram
C-120 pulleys
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Work Order Templates

Pre-built workflows to keep your asset running smoothly.

Daily Electrical System Inspection
Replace Roller and Pulley
Install Engine B-120
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Procedures

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Motion Industries
Applied Industrial Technologies
Electrical Brothers
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Parts

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Drive Motor
B2 Rollers
Tensioning System
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Big Ass Fans Evaporative Cooler Cold Front 400

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Maintenance Plans for Big Ass Fans Evaporative Cooler Model Cold Front 400

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1 Weekly Cooler Cleaning

WARNING ELECTRICAL SHOCK HAZARD

Disconnect the power supply before performing any service or maintenance. Failure to do so may result in serious injury or death.

Removing the cooling media

Remove the cooling pads to access the inside of the cooler.

Remove pad grilles from support channel.

Tilt pads from the top and lift out of the cooler.

Drain and clean the cooler weekly. Remove the cooling media and wash with a garden hose.

Drain the cooler

Remove the cooling media

Run this procedure

Fan Motor Replacement

CAUTION: Repairs should be performed by a qualified technician!

WARNING ELECTRICAL SHOCK HAZARD: Disconnect the power supply before performing any service or maintenance. Failure to do so may result in serious injury or death.

Select the model of the fan

Cap removed from bottom of motor

Wires disconnected and wire ties clipped

Four (4) fan mounting bolts removed from front

Fan removed from the cooler

Blade mounting nut and blade removed

Mounting arms removed by loosening the eight (8) bolts securing the arms to the motor

Run this procedure

1 Weekly Water Sump Draining

WARNING ELECTRICAL SHOCK HAZARD: Disconnect the power supply before performing any service or maintenance. Failure to do so may result in serious injury or death.

Power supply disconnected?

Remove the cooling pads to access the inside of the cooler.

Bolts connecting the pad retainer bar (pad side) from the housing removed?

Top pads removed (for Cold Front 400 and 500 models)?

Center pads tilted from the top and lifted out of the cooler?

NOTE: Reinstall pads correctly according to the markings on the pads.

Periodic maintenance: Shut down the cooler and drain the water sump regularly.

Cooler shut down?

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Cooler Check

All hose connections checked

Select the gauge of the cord used

Fresh air intake for the cooler provided and minimum clearance of 3 ft maintained

New cooling media flushed

Cooler filled with water

Pump switched on

Cooler run without the fan for 5 hours

Cooling media evenly saturated

Cooling media dried out before shutting down the cooler

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Pump Replacement

CAUTION: Repairs should be performed by a qualified technician!

WARNING ELECTRICAL SHOCK HAZARD: Disconnect the power supply before performing any service or maintenance. Failure to do so may result in serious injury or death.

Unscrew fitting from pump.

Unplug cord from top of pump by removing the two (2) screws.

Remove pump from water sump and install new pump.

Perform the steps above in reverse to reconnect the wiring, lift the pump bracket, and reconnect the hose.

Secure wires to fan frame with wire ties so that wires are clear of fan blades. Ensure plug is positioned correctly.

Reinstall cooling pads and guards.

Reconnect power and test pump.

Run this procedure