[Johnson] Desk KW fan

[Rodger]

Craig,

Thanks and I also have a Viking 500 but since I have one dead fan I only 
have 4 live ones to worry about.  I have kept all of the fans lubricated 
and it does spin freely so I am guessing it is just a fault of the old 
enamel type insulation used on the winding; I guess since it is 54 years 
old is shouldn't be too much of a surprise.  By the way, I have been 
using a high temperature rated synthetic oil that is designed for the 
"purge" blowers in the dual heat exchanger heating systems.  I had a 
tough time finding this oil and when I did I had to buy a small case of 
it which is far more than my two home heating systems will ever need and 
it is a high quality lube designed for blower motors so it should be OK 
for these motors.

These motors are clockwise rotation with a 1/8" shaft and 2" OC 
mounting.  Most current fan motors have a 3/16" shaft and 1 7/8 OC 
mounting.   If I find a source of new I will post it here.

Just checked the manual and my Thunderbolt has 2 of the same spec motor 
also, grrr!

73, Rodger WQ9E

 Craig C. Heaton wrote:
> Rodger,
>
> Sorry to hear about the fan motor! Ouch! The Johnson Viking '500' and Desk
> KW use the same motor, part #22.1079-1. My guess here is to have the motor
> rewound. To owners of these rigs; there are places, one little hole on each
> of the bearings to apply a light lubricant. A fiber material surrounds the
> bearings and oil needs to be applied once in a while in order for the shaft
> to spin smoothly.
>
> My '500' started to get noisy one day, what a pain to get the fan out where
> I could get some oil to the bearings! The two fans in the RF section of the
> Desk KW should be a real treat also, don't ask me how I know.
>
> This will be a good thread to watch, I've got five of those fans to keep
> spinning.
>
> 73's
> w
> Craig 
>
> -----O