The Old Lawnmower Club
Collection, Preservation and Display of Old Lawn Mowers
X

ATCO Light chain tensioner

Enter a word or two to search the forum section and click the Search Forum button.
1manwent2 Sun, 05/05/2019

should my ATCO Light have a chain tensioner please,all the illustrations that I’ve seen of similar models have one but as far as I can tell there is no provision for one

Forums

gtc Mon, 06/05/2019

Yes, that is odd. What size cut is that one?

Or, if the ID plate is still present what does it say?

 

hortimech Mon, 06/05/2019

If it is like every Atco I have seen, the spindle for the large sprocket in the centre will be in a slot, slacken it and slide it to tension the chains. If the chains are still slack (note: don't get them to tight), they probably need replacing. 

wristpin Mon, 06/05/2019

Moving the intermediate sprocket will indeed adjust the intermediate and final drive chains, but that  primary chain (the one from the top shaft to the cutting cylinder) already looks a bit tight and adjusting the cylinder to the bottom blade will tighten it further - as will sharpening the cylinder and refacing the bottom blade - so you may need to add an extra pitch by the addition of a cranked “ half link”.