Slip Clutch adjustment on shredder

Dan in North Houston · Sep 12, 2016

Mohawk batwing shredder, probably a model 1360, and probably around a 1980's model. It works fine, but I've never seen slip clutches like this. Was able to get a parts manual from Ag-Meier but no owner's manual. Clutch adjustment is by rotating the big nut next to the gear box to put pressure on the clutch disks. The nut would take a wrench of about 3 or 4", and the parts manual shows an adjusting wrench that is no longer available. From the size of the nut, the length of the wrench is probably 2 or 3 feet long. And of course, there's not much space to get a wrench in there, so a pipe wrench would not work. Will have to make a wrench out of plate steel if I ever need one.
I understand how it works, but how to set the proper adjustment? Trial and error? I realize that I can just keep tightening until it doesn't slip, but would appreciate any tips if anyone has dealt with this before.

JMS/.MN · Sep 12, 2016

Adjust the nut until the clutch doesn"t slip under normal load. As far as a wrench, you could use a spanner wrench if you drilled a shallow hole on each face of the hex nut.

paul · Sep 12, 2016

That looks to be the exact slip clutch on my 605F Vermeer round baler.

It got oil in it from a hyd leak, I recall taking it apart burning the oil off, and putting it back together. Better access to it on the baler. I don't recall looking at my manual,....

Paul

RickB · Sep 12, 2016

Nut may have an Allen set in one of the flats running down to the shaft. Old Ford cutters used a similar clutch.

notjustair · Sep 12, 2016

That's exactly how our 1508 JD is set up. The nut part at least. We found a cheapo make of wrenches that were more narrow and just fit in there to tighten the clutch nut. We just tighten it until you think "that's got to be enough".

chargerguy · Sep 18, 2016

Vermeer used sameslip clutch onall their baler until they changed to waltershied driveling make a wrench out of 1/2 plate that's all they did. Early ones had a eared nut that could be beat on to adjust but the hub was cast and would brbreak.Yours is later clutch. I would advise loosening it up. All slip clutches are known to rust and seize up not good when you need it. Some had 2 some 3 cone springs for pressure if it has been slipped hard (burnt paint act) these may need replacing. Don't bear on clutch to remove the hub has small ears that can be broken off. Parts are available pretty durable up to 100 horse not much beyond.

Slip Clutch adjustment on shredder

Dan in North Houston

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JMS/.MN

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paul

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RickB

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notjustair

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chargerguy

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