If the bearings need lubricated, would they still be running or running w/o any signs of distress? I looked at those; the power supply fan, the CPU fan, and an addl mini fan that I have sitting inside the case (I leave my sides off the case) and they are all running smoothly, quietly, and putting out air.
Do power supplies act up intermittently? I thot when a power supply went out, it simply went out.
Again, I don't mean to argue, I just need clarification. I will ultimately check out your suggestions too. Thanks!!
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Re: Thanks for reply, addl questions..
Hi again Tgeek,
Appreciate the postback.
In reply to your first query, yes especially those with 3-wire connection since they are variable RPM (depending on a heat sensor that dictates to what RPM the fan motor should rotate). If the PC is a couple of years, then cleaning and lubrication wouldn't do any harm but would maintain if not improve overall efficiency. Additionally, you have eliminated the possibility that the fan is the cause of the "screeching" sound.
Should problem persist (with the fan problem eliminated), then the only possibility left is as you suspected the SMPS (switch mode power supply). The SMPS operates on a frequency above the threshold of the human hearing. In some instances due to full load or no load conditions, the frequency changes (though they are supposed to remain stable). It is very possible for the freq to go down to a level that would be audible. Intermittent operation is not unheard of with PSUs and often the culprit are capacitors. However, often PSUs are no longer repaired but simply replaced.
Would appreciate another postback for any developments (or even the lack of it).
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If you can see inside the wheel bearings then they require lubrication from the differential. If they are sealed then no. You don't say if the rear axles are 1/2 ton or 3/4 ton. No brand of seal will seal better than any other. Spray engine degreaser in the rear end and flush out with water. You may need to do that more than once.
termed as bad main bearing and seal costs about 150-180 for the parts and if you had a technician do the job they would charge you about 4-600. Big job takes experienced technician about 3 hours to most complete the job in 4-5. All this considering I would go with zert cheaper to find another unless you can perform the job yourself in which both the inner and outter tub have to be removed and seperated in the unit. If you have any further questions message me back. I await your reply Thanks Rick
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Thanks a lot!!
Do what you can to clean off the bearings and armature shaft then lubricate with the oil.
Most of the time lubrication will snap a tired fan out of running slow. On the hard molded motors (encased) lubrication takes much longer as you have to lubricate and wait for the oil to reach the lower bearing deep inside the housing. It is ok to oil from the top and let it run to the lower bearing. It will not hurt the fan. I place the fan on a paper towel for as long as I can and wait for the exvess to drain off before re-installing the motor. On the non-encased motors you can remove the bearings and clean the motor shaft and the bearing then lubricate reassemble and lubricate again.
If your using an external fan... it is OK to use the refrigerator while your waiting for the oil in the motor to drip out. Just make sure there is a 15 minute pause each time you remove power or the compressor will not re-start properly.
Its bearings are going.
Temporary fix: lubricate the bearings of the pulley with 3-in-1 oil.
Keep lubricating the bearings whenever they make noise.
Fix you'll eventually need to do: replace pulley (new bearings come with the new pulley). keep the new bearings lubricated (with bearing grease), and your idler pulley will last 100,000 miles.
No the bearings are sealed, and not designed to lubricate. They can go bad, and if they do it is possible to remove the seals and re-oil/grease them. Sometimes this helps a little but not always. If you try to lubricate them without disassembling the fan, pulling the bearings, remove the seals, most likely whatever you try and squirt in their will just attract dirts and make things worse. getting to the bearings, usually means taking things apart that were not meant to come apart. So, the short answer is usually if they go bad the fan is shot. Hope this helps. If you need further assistance post a reply in the comments, and don't hesitate to leave good thumb rating if you found this helpful. Thanks, and good Luck!
Check your compressor area for lint buildup. Is the fan running down there? Is the compressor running? Both should be running when the control is calling for cool and the inside fan is running. Looks for signs of distress associated with the compressor relay. If all of that is good. Look for frost buildup on the freezer wall, a sure sign of a defrost problem. Remove the freezer service panel and look for frost buildup. You could have a bad heat or terminator.
There is no way to lubricate the bearing. However.....I do know...that there were some models that were manufactured with inferior tub bearings. You should consider contacting Whirlpool for possible warranty concessions related to your particular issue.
If you need further assistance, let me know Regards, reg501