I have acquired an older 1 1/2 HP motor.
The motor works when hooked up to power, however I have not run it under load or for an extended period of time.

I believe the run capacitor currently hooked to the motor is incorrect and would like to verify it's value before using the motor.

I have contacted the Manufacturer Marathon Motors, they cannot find the specs.

I have attached a picture of the nameplate from the motor.

The Run capacitor currently installed is 7.5MFD 370V

Any help would be greatly appreciated

 

Does it also have a start cap, or just run?
For a run on a 2 pole motor that seems about right,
If you do run in to issues you could try another cap (~5uf) in parallel and compare the current when under load.
Ensure it is AC motor run type.
Max.

 

Does it also have a start cap, or just run?
For a run on a 2 pole motor that seems about right,
If you do run in to issues you could try another cap (~5uf) in parallel and compare the current when under load.
Ensure it is AC motor run type.
Max.

Yes, the motor also has a start capacitor 270-324 MFD 125V
I have attached pictures of the capacitors

 

Does it also have a start cap, or just run?
For a run on a 2 pole motor that seems about right,
If you do run in to issues you could try another cap (~5uf) in parallel and compare the current when under load.
Ensure it is AC motor run type.
Max.

If I change the value of the run capacitor and check the current under load, I assume I am trying to get a reading as close to the motors stated FLA as possible. Is this correct?

 

If I change the value of the run capacitor and check the current under load, I assume I am trying to get a reading as close to the motors stated FLA as possible. Is this correct?

Correct, but unless you see overheating or lack of power under load, you may be worrying unduly .
Max.

 

Correct, but unless you see overheating or lack of power under load, you may be worrying unduly .
Max.

Thanks Max, I appreciate your time and your help.
I will keep a close eye on the motor and do further testing. Hopefully my concerns turn out to be unfounded.