Holmes "16 fan needs to be lubricated. Where do you add oil
Fan needs to be lubricated. It starts on high but sometimes not on low. I removed the blade and added a few drops of oil around the fan shaft. This corrected the problem, but it returns after a while. Is there a correct way or place to lubricate the motor internally.
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Re: Holmes "16 fan needs to be lubricated. Where do you...
No there is no way to lubricate the new cheap fans internally...they are made to run for a bit and then be thrown out...
I have found that by using a thin oil like WD-40 and then positioning the motor so that it runs back the shaft into the motor you can get it to work into the motor. I usually use WD-40 and then follow with a light motor or sewing machine oil. This seems to give a longer solution...
Re: Holmes "16 fan needs to be lubricated. Where do you...
The cheap fans I've disassembled have had only a small smear of rather stiff grease dabbed on at the bearing. I've usually tried to run oil into the bearing but, as pointed out above, sooner or later they dry or the oil wicks away. Last fan I took the bearings apart and they were built like real bearings, with a felt ring to store oil surrounding the brass sleeve in which the end of the shaft runs. Two problems: the felt was dry, never had had any oil, just that dab of grease applied to the shaft, and the sleeve was a plain brass tube, not the porous, sintered brass "Oilite" type of material which wicks the oil from the felt into the sleeve/shaft interface. After disassembling the motor I carefully removed the retainers at the interior openings of each bearing housing. This is when I discovered the dry felt. I removed the brass sleeves and cleaned any gunk, drilled and deburred a couple of 1/16" holes in each for oil flow to the inside (important to deburr the inside where the shaft will run), replaced the sleeves, oiled the felt (10 or 20 wt.), restaked the retainers, re-assembled motor and fan -- and voila`! Or, you could buy a new fan. But to me it's a game and I don't like to let a bearing beat me. Fred
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What you are describing is one of the three resiliant rubber mounting pads and not a bearing. They are rubber to minimize vibration and the subsequent harmonic noise that would be generated had they been made of metal. Go to a local HVAC contractor and ask if you can peruse their discarded furnaces tossed out back for a replacement rubber. They, though not identical, all should be adaptable to fit your needs.
You say your fan won't rotate on 'low'...so the assumption is that the worn rubber is letting the fan blade gently rest on the side of the blower housing. But then the assumption is that the fan is capable of starting on a higher speed due to the increase hp rating of high speed. If that's the case, there should be a loud scraping, rattling noise coming from the blower during operation. If this is not the case, maybe consider trying to find the oil holes in the motor when you have the blower assembly out to repair the rubber. The motor may be 'oilable' or 'permanently lubricated' as evidenced by the appearance of two plugs near the top of the motor on the end bells....or not. The plugs will be usually yellow plastic or gray aluminum plugs and are removed with needle nose pliers.
I'm thinking you may have dry bearings within the motor itself. They are a permeable bronze bearing that rests in a 'wick' of felt saturated by lightweight oil. The oil literally permeates the bronze to maintain lubrication on the metal shaft as it rotates inside the bronze. When dry, sometimes the low starting torque of the PSC motor utilized in furnaces cannot start on low but will start on high. Then they fail altogether if the dry bearings are not lubricated.
this is special operation, you must have skill for to do this. You can use jering with oil and lubricate the house motor is more easy and more efective. Unless the motor is faulty. In that case will be replace it. God bless you
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If the fan motor will not turn on or hums and/or turns slowly more than likely its a lubrication problem.
1. Unplug the fan from the wall remove the 516 screws to the cage
2. Try turning the fan blade by hand if it is tough to turn more than likely it's a lubrication problem
3. You will have two oil holes one in the front one in the back spray WD-40 into these holes, turn the fan blade if it starts to free it up apply more WD-40 and keep turning the blade add more WD-40 until the blade turns freely. Especially in the rear oil hole because this is an oiled bushing that you are adding oil to. Once the fan is turning freely replace the front cage with all the screws plug the fan and I hope this solves your problem. You may add 3 in 1 oil or some other very light lubricating oil periodically.
As for oil, you can use one of two oils. Depending on how old your fan is, I suggest changing the oil by removing the fan, turning the motor completely over and letting it drain into the "dish" on the part that spins, clean the oil out of there, then re-hang the fan and oil with 1 oz of either Hunter Fan Oil (which is available from hunter, or on ebay, just search for Hunter Original Fan) or Zoom Spout Oiler, both are the same oil.
mcdevito75 here, Sounds like that oscillating swtich is either a little loose or could use a drop or 2 of 3 in 1 oil. Try to twist offf the oscillating swatch button and see if you can tighten it or put a drop of oil on it.