When you pull those covers on the condenser, lube the fan motor out there too. Some motors will have little aluminium or rubber plugs that can be removed to access oil galleries for the motor bearings. Squirt some turbine oil in those when you PM that condenser, it will increase the MTBF on the motor by at least 1000%.

I know this for a fact because in another life, I used to pull a/c service on the systems at 12 different apartment complexes totalling over 550 units. One summer, we were losing on average one condenser fan per day. The next spring, we did PM on all the systems before hot weather. THe service included oiling the inside and outside motors, blowing out the condensate drain and putting a chlorine tablet in the pan. We sat and played a LOT of cards that summer.

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Never a dull moment at Berry Hill Farm.