Atco H5 24" Gear drive Sprocket

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tooorisky
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Atco H5 24" Gear drive Sprocket

Hi.

 

Apparently I have an Atco H5 24" petrol lawnmower which recently failed because of a worn double sprocket in the drive chain. I believe it is an H5 because I saw an identical mower that has been restored. From the documentation in that topic it shows a user manual and the item I need is H 254 which is a double gear (10 and 26 teeth). Recent enquiries to various companies has turned up nothing, the model number doesn't seem to be relevant. I assume that is because it is a vintage mower. Can anyone direct me to someone who can help source the gear please. I have included a front and back picture. Thanks in advance.

wristpin
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That is a n old part number

That is a n old part number and unless one can find the relevant book it doesn't mean too much. It will be helpful if you can post an image of your  book or of the mower showing where it belongs. I’m guessing that it is one of the intermediate sprockets and the good news is that Atco used the same basic design and many of the same parts on successive generations of their 24” mowers.

tooorisky
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OK Thanks wristpin Here is a

OK Thanks wristpin Here is a link to the article on the forum https://www.oldlawnmowerclub.co.uk/forum/history-and-technical/technical... The gear chain is on page 16 of the manual the item is H 254, I tried to copy it here but it doesn't work so here is the link https://www.dropbox.com/s/jcg4ks0uassjcde/Atco%20H5%2024%2019600001.pdf?.... Thanks for the help

 

 

wristpin
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Yes, I’d just found it. Part

Yes, I’d just found it. Part number F016L20321, chainwheel and bush assy. Still shown as available £103+vat ! 

tooorisky
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Thanks mate, you have helped

Thanks mate, you have helped me more in a couple of hours than businesses over a few days. Stay safe.

tooorisky
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wristpin, can you tell me

wristpin, can you tell me where you got the information from as I am having problems finding the part F016L20312. Thanks in advance.

wristpin
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Take the F206 off and go with

Take the F206 off and go with the L number.

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hortimech
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try here: https://www
wristpin
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I've has a bit of a scrabble

I've has a bit of a scrabble in the odds bin and found these bits. The sprocket assembly  is definitely off a 24 but probably younger than yours. The smaller sprocket is 10 tooth but the larger one 30 tooth. My guess is that the the rubber covered rollers on the later machines were a shade larger in diameter than the steel or alloy ones on the early machines and that the extra size of the intermediate sprocket kept the ground speed down - just a guess.

tooorisky
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Hi Angus.

Hi Angus.

 

I believe I could work with that. Just let me know how much? Thanks. Terry.