My KDS-18 has developed a horrible screeching noise when started. Sounds like a bearing in the motor. Noise seems to lighten as it progresses through the cycles. Can this be lubricated? Machine was stored for about 27+ years before I got it and worked fine until recently. Any help truly appreciated.--Tom
Screeching noise on my KDS-18? Stevet are you out there?
- Thread starter alabamboy
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stevet
Well-known member
Hmmm...
Tom,
Based on the age of the machine, I would check the cooling fan on the motor which will often break and spin independently until it catches up with the motor speed. It will often screech at first and then stop making noise. Since the pump runs only in one direction on your unit and generally runs continuously until it stops for the final rinse, it can remain fairly quiet once the machine is started. But it will screech again when restarting for the last rinse.
You can check this by watching the motor from underneath when it starts up or you can turn off all the power and reach in and try turning the fan with your finger. Sadly, you cannot get the fan by itself so you will have to replace the motor or get anoter motor with a viable fan on it. Let me know what you find. I just found a box of motors and will check the fans on them. Most of them are in good shape.
Tom,
Based on the age of the machine, I would check the cooling fan on the motor which will often break and spin independently until it catches up with the motor speed. It will often screech at first and then stop making noise. Since the pump runs only in one direction on your unit and generally runs continuously until it stops for the final rinse, it can remain fairly quiet once the machine is started. But it will screech again when restarting for the last rinse.
You can check this by watching the motor from underneath when it starts up or you can turn off all the power and reach in and try turning the fan with your finger. Sadly, you cannot get the fan by itself so you will have to replace the motor or get anoter motor with a viable fan on it. Let me know what you find. I just found a box of motors and will check the fans on them. Most of them are in good shape.
Starter switch...
Hey Stevet, thanks for the info. if you don't remember, you helped me with the starter switch on this machine. Walked me through removing and cleaning it. Thanks again for that help. If I can move the fan with my finger, does that mean its broken? I have a mint KDC-18. Can I remove the cooling fan from it? Or is it all connected and has to be the entire motor? Thanks, Tom
Hey Stevet, thanks for the info. if you don't remember, you helped me with the starter switch on this machine. Walked me through removing and cleaning it. Thanks again for that help. If I can move the fan with my finger, does that mean its broken? I have a mint KDC-18. Can I remove the cooling fan from it? Or is it all connected and has to be the entire motor? Thanks, Tom
SCREECHING KD 18
Yes Steve is probably correct, we used to run into this problem fairly frequently. We used to remove the motor and you would have to completely disassemble the pump assembly from the motor, but you can epoxy the fan blade in place on the motor shaft. I never had one fail again after we did this and you can keep using the machine with the loose fan blade. But eventually the blade will get so loose that motor cooling will suffer and the motor may cut out on the overload protector before the full cycle is complete.
Yes Steve is probably correct, we used to run into this problem fairly frequently. We used to remove the motor and you would have to completely disassemble the pump assembly from the motor, but you can epoxy the fan blade in place on the motor shaft. I never had one fail again after we did this and you can keep using the machine with the loose fan blade. But eventually the blade will get so loose that motor cooling will suffer and the motor may cut out on the overload protector before the full cycle is complete.
stevet
Well-known member
Cool!
John, good suggestion on the epoxy.
I was going to say that these fans were usually held in with a spring clip but it would still require disassembly of the whole motor and pump as you pointed out. Tom, since you have another complete pump in the KDC-18, why not swap them and then work on the broken one at your leisure?
The pumps come out thru the inside of the tank once you remove the hoses for the drain and upper wash tube and disconnect the wiring to it. The motor is held in by 3 spring clamps which you open and then remove and then the pump can come out.You may have to wedge something under the motor to loosen it from the tank but then just clean up the area where the rubber gasket seals the motor and lubricate the rubber gasket with liguid dishwashing detergent and it will slip right back in.
Reattach the clamps, the hoses and wiring and you should be good to go.
The attached picture is from the 21-22 series pump which is the only pic I have on this computer right now, but you can easily see the clamps(item 22) and the drain hose and supply hose to the upper manifold. Remove the drain hose from the pumps you have and loosen the clamp on the hose to the upper manifold and pull the manifold itself out of the hose. That hose is held in place by the washarm support on all these models and has to come out with the motor thru the tank.
This picture should give you an idea of what is what.
Hope it helps
Steve
View attachment stevet++12-29-2011-08-46-7.jpg
John, good suggestion on the epoxy.
I was going to say that these fans were usually held in with a spring clip but it would still require disassembly of the whole motor and pump as you pointed out. Tom, since you have another complete pump in the KDC-18, why not swap them and then work on the broken one at your leisure?
The pumps come out thru the inside of the tank once you remove the hoses for the drain and upper wash tube and disconnect the wiring to it. The motor is held in by 3 spring clamps which you open and then remove and then the pump can come out.You may have to wedge something under the motor to loosen it from the tank but then just clean up the area where the rubber gasket seals the motor and lubricate the rubber gasket with liguid dishwashing detergent and it will slip right back in.
Reattach the clamps, the hoses and wiring and you should be good to go.
The attached picture is from the 21-22 series pump which is the only pic I have on this computer right now, but you can easily see the clamps(item 22) and the drain hose and supply hose to the upper manifold. Remove the drain hose from the pumps you have and loosen the clamp on the hose to the upper manifold and pull the manifold itself out of the hose. That hose is held in place by the washarm support on all these models and has to come out with the motor thru the tank.
This picture should give you an idea of what is what.
Hope it helps
Steve
View attachment stevet++12-29-2011-08-46-7.jpg
Sounds like a plan!!
Hey Steve, the picture you posted didnt load on my computer but from what you said, I dont have to take anything apart on the inside of the tank, just the hoses and wiring on the outside along with the clips and everything slips out through the tank?--Tom
Hey Steve, the picture you posted didnt load on my computer but from what you said, I dont have to take anything apart on the inside of the tank, just the hoses and wiring on the outside along with the clips and everything slips out through the tank?--Tom
stevet
Well-known member
PICTURE NOT WORTH ANYTHING!!!
Sorry about that! It was actually a .pdf file which I can not post here for some reason. But the answer is Yes, you do not have to disassemble the pumps to swap motors but will have to if you decide to fix or replace the fan.
I have KUDS220 for which I paid 30 bucks and it is in excellent condition, but it has a broken fan too but I haven't had time to play around with it. The people I got it from said they thought the pump was bad so they went out an bought a new Tall Tub K/A. At least I have a few spare pumps I can throw into it when I decide to use it.
Sorry about that! It was actually a .pdf file which I can not post here for some reason. But the answer is Yes, you do not have to disassemble the pumps to swap motors but will have to if you decide to fix or replace the fan.
I have KUDS220 for which I paid 30 bucks and it is in excellent condition, but it has a broken fan too but I haven't had time to play around with it. The people I got it from said they thought the pump was bad so they went out an bought a new Tall Tub K/A. At least I have a few spare pumps I can throw into it when I decide to use it.
Done!!
Switched out pump and motor from the KDC to the KDS. Waaaaay too easy!! No leaks! Will begin breaking down KDS motor and pump some time nexr year. Thanks for the help guys! Will keep ya'll posted with that project. I'm sure I'll have questions!!! Thanks again!!--Tom
Switched out pump and motor from the KDC to the KDS. Waaaaay too easy!! No leaks! Will begin breaking down KDS motor and pump some time nexr year. Thanks for the help guys! Will keep ya'll posted with that project. I'm sure I'll have questions!!! Thanks again!!--Tom
