Mf 620 snow thrower

summatyme29 · Nov 15, 2023

Anybody have a diagram of the chain routing? Drum sprocket,drive sprocket and two idlers.Also # of links in the chain

BarnyardEngineering · Nov 15, 2023

Chain comes in 10' rolls so the number of links is "however many it takes."

Are the idlers on a single bracket? The chain would pass between the two idlers, then the whole assembly rotates to push the idlers against the chain from opposite sides.

Otherwise, the chain routing across the idlers would depend on which way they move. If the idler doesn't move at all, then route the chain for maximum contact with the drive gear or the drum gear.

Here are a couple of examples:

caterpillar guy · Nov 15, 2023

Typically the tension idlers are not on the pull side of a chain they are on the loose side or return so to speak.

Jim.ME · Nov 16, 2023

Here is a link to the MF 12 garden tractor parts book, which includes the 620 snowblower and other attachments for the MF 12. The mounting locations and shape of the idler sprocket brackets should help you determine the mounting. There doesn't seem the be a drawing or picture of it assembled in the parts book or any of the Operator's manuals online. The parts book also gives the size of the chain and pitch.

These may have been built by Snapper for MF so you might find something if you search Snapper models.

Here is a link to the MF 12 parts book.

https://parts.agcocorp.com/us/en/apbsearch?q=masseyferguson/651238/l&name=12 TRACTOR

summatyme29 · Nov 18, 2023

Working on this as we speak,so far l have a
really nice sweeper.oops lol

summatyme29 · Jan 19, 2024

Can anyone confirm this is correct

Mf 620 snow thrower

summatyme29

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BarnyardEngineering

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caterpillar guy

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Jim.ME

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summatyme29

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summatyme29

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