Why would an Older Hunter Fan Drip Oil after moving it?

I took down my Hunter ceiling fan and reinstalled it in a different room.
It’s similar to this one.
http://pub1.personafile.com/pf/A2877-78/pk-000000000039173-02a9e259631c43429018f816ddd277eb-30-1.jpg

This is the older style fan bought in 1982. You put a board between the rafters. A special S Hook screws through the ceiling box into the wood. The fan hangs off that S Hook.

I blew the dust off the motor with my air compressor. Ran the light globes through the dishwasher. Works great.

Except I have a slow oil drip. A Few drops a day. :dubious: I didn’t see an oil port on the motor. Certainly didn’t oil it.

AFAIK it wasn’t dripping oil before. It’s been 4 days. Gotta do something soon.

is it possible that it has an oil-filled vibration damper? IME most of those kinds of motors have impregnated bushings, but there’s not enough oil in them to actually drip.

I’ve done some research on google. These old classic hunter fans did have a oil reservoir. You’re not supposed to let the motor tip to the side. It should be supported between two boxes so the motor sets level. Sure, wish I’d remembered that last Thursday. :o

I just wiped down the motor housing with a clean rag. I’m hoping the drip is only from the oil on the housing.

I’ll find out soon enough. I need to check the oil level and see if more is needed. I know it uses a special oil that Hunter sells.

Wish I’d known that Hunter sells a special relocate kit for fans that are being moved. Includes a knew rubber mount, tube of oil etc.

I was off Thursday and moved the fan without much planning. Those wild hairs will get me every time. :wink:

At least I did take time to blow all the dust out of the motor. It had been hanging in my house 20 years. That’s a lot of dust.

I think that fan uses a reduction gearbox to provide quiet operation. The grease in that gearbox has liquefied and found a leak through a seal. It could have been leaking and having the oil absorbed in the dust or the seal got disturbed with your removal. That’s my guess anyway.

The oil resevoir is in the cup shaped area below the motor housing that the light kit attaches to.

In the resevoir is where the bearings sit. They need the oil bath to sit in to work properly long term. Don’t use 3:1 oil, as it will burn the bearings up.

You can remove the cup while the fan is hanging. Remove the light kit, if you have one. If not, remove the bottom plate from the drop down cup. Loosen the wiring. The drop down cup screws onto motor housing. The wiring for the light kit is threaded through a hole in the center of the cup. Just unscrew the cup from the housing pull down and the bearings will be exposed and then you can see the resevoir where the oil goes.

Alternatively, there should be a small hole at the top of the cup where oil can be added.

Good luck

thanks. That helps a lot. I do have a light kit on this fan. I’m not sure how much oil actually spilled. I had the motor down for maybe two hours. I noticed some oil on the housing. No puddle on the floor. I don’t think it was a major spill. I got the housing wiped down yesterday. Fingers crossed that no more oil seeps out.

I saw directions on how to check the oil level. If it needs more, then I’ll get a tube of oil from a Hunter dealer.

Hunter fans use hydrodynamic bearings for quiet operation. No gears. No ball bearings. They also pot the laminations to prevent buzzing. Of the 6-7 fans we have, one is a Hunter, and it is the quietest by a wide margin.