1956 Series 62 - Balancing fan blade in heater blower

[caddyjoe]

The heater blower motors are on left and right side of fire wall -
when I took the blowers apart to restore, I found that the
fan blades (looks like a hamster wheel) had weights - one was
attached the other had fallen off - How do you balance these
fans

Joe Murphy,  27813

[fishnjim]

https://reliabilityweb.com/tips/article/balancing_without_phase/