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Discussion Starter · #1 ·
Recently acquired a 18608 tiller, sight unseen. I now find it has about 1/4 turn of free play in the gear box. In other words I can turn the input shaft about 1/4 turn before the output shaft starts to move. Is this something to be concerned about or is this normal? Thanks for your advise.
 

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Not sure about your Bolens but in my JD blower there was a lot of slop in the key/keyways. Both were worn. The gears could be a problem as well. You need to disassemble it and have a look see. Often it's a small amount of wear in many places that all adds up. If you run it like that you may end up doing some serious damage.
 

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DR. Bolens
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I believe all my tillers have that amount of play as well.

These round back tillers are very simple inside and only have 3 main gears. The Bull Gear,the worm Gear & the tine shaft with a gear.

I would remove the bottom plate and inspect the gears, if you dont see any chunks missing or alot of brass colored metal in the gear case you should be ok.
 

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Discussion Starter · #4 ·
Thanks a bunch for your experienced advice. Will look 'into' it this morning and see what gives. Want to change the gear oil anyway so I know when it was done last, I think? :wave:
 
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Getting Out!
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Sounds to me like a rebuild and couple new gears needed. Worm gears wear-out by thinning the lands and will reach a point where they are too thin and broke off and jamb up. There may be a big nut and turning race on outside at end to adjust some, might try that also if so. Not sure where one would find replacement gears for such an animal?
 

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Blackjackjakexxix
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Those round backs were known to have problems with the brass gear,you will know as soon as you drain the gear oil,if a lot of shavings you'll need to look closely inside an see what's going on
 

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Discussion Starter · #7 ·
Sounds like the first order of business is to drain the gearbox and do a close inspection of the gears inside, as well as strain the oil through a fine cloth. Straining the oil will usually will tell if there is a wear problem .
 
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