Hello I bought home with a DF520 about 5 years ago. As of this year the unit is 23 years old. I have been very pleased with its performance. Except for replacing the auger pipe twice, a circulation motor and a shear pin no problems.
My question though is I have noticed that the auger shaft has about 1/4" of play and I was wondering if that is normal. So for example if you grab the square end of the shaft where the handle goes and push and pull you have about 1/4" of play there. Just want to make sure nothing is going on that I need to address in maintenance. Thanks for any help.
DF520 Auger Shaft Play
- StokerDon
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Welcome to the forum dkb,
That doesn't sound normal. So, that is the end of the "clutch shaft" we are talking about. Yours can be pulled out about 1/4". That sounds like a lot but I don't know if it will hurt anything.
Have you looked at this thread, "DF520 Clutch Assembly"?
Pictorial: DF520 Clutch Assembly W/ Part Numbers
It sounds like you may need one or two more of the brass thrust washers to take up the gap.
-Don
That doesn't sound normal. So, that is the end of the "clutch shaft" we are talking about. Yours can be pulled out about 1/4". That sounds like a lot but I don't know if it will hurt anything.
Have you looked at this thread, "DF520 Clutch Assembly"?
Pictorial: DF520 Clutch Assembly W/ Part Numbers
It sounds like you may need one or two more of the brass thrust washers to take up the gap.
-Don
- Rob R.
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I suspect that the collar between the housing and the first cottar pin is either worn or missing...or the hole in the end of the clutch shaft is very worn. If the collar was in place and fitted properly, it would prevent the shaft from being pulled away from the boiler. Here is a picture of the assembly - the red box is the part I am talking about.
Regardless of the cause, the auger pulls itself towards the coal anyway.
Regardless of the cause, the auger pulls itself towards the coal anyway.
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Thanks Rob, yeah when I look at the collar I can see that that is where the play is. I just didn't know if it was supposed to have that slack in there for some reason or if it was something I needed to address. Like you say when the auger is running and full of coal it is pulled in that direction to it's limit.
Thanks to everyone for the responses.
Thanks to everyone for the responses.