Check the motor s fan belt tension.
Swamp cooler belt tension.
Lightly oil the bearing on the blower assembly and the motor if it has an oil receptacle.
Step 3 check shaft bearings.
Once inside check the tension of the belt running from the swamp cooler motor to the fan.
It should not be too tight or too loose.
The tightening of the belt is a straightforward and simple operation.
Incorrect fan belt tension could cause your swamp cooler motor to overheat.
Will too much belt tension on a swamp cooler cause the motor to burn out.
When pressed it should move about one half inch.
A common problem is the fan belt that runs from the fan motor to the fan blade axle.
There are a number of factors that can interfere with the transfer of air from the outside into the swamp cooler.
This belt can become loose if it becomes worn and stretches out over time or if the motor slips in its sliding mount.
Install new cooler pads.