Once inside check the tension of the belt running from the swamp cooler motor to the fan.
Swamp cooler belt tension.
Incorrect fan belt tension could cause your swamp cooler motor to overheat.
It should not be too tight or too loose.
Will too much belt tension on a swamp cooler cause the motor to burn out.
Install new cooler pads.
Step 3 check shaft bearings.
Roughly speaking there should be about one inch of play in the tension of your fan belt.
Lightly oil the bearing on the blower assembly and the motor if it has an oil receptacle.
So while your cooler will run you ll have to.
This belt can become loose if it becomes worn and stretches out over time or if the motor slips in its sliding mount.
When pressed it should move about one half inch.
The tightening of the belt is a straightforward and simple operation.
Check the motor s fan belt tension.