Old 10hp Gravely, lacking torque in drive train and snowblower stage

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  #1  
Old 12-18-09, 06:44 PM
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Old 10hp Gravely, lacking torque in drive train and snowblower stage

Was hoping someone may have some insight about improving the torque on an old (circa 1960's) 10hp Gravely snowblower.

When the drive wheels are engaged and the Gravely plows into some snow, the wheels seem to stall and the primary & secondary stage impellers bog down. The engine runs beautifully, but its power doesn't seam to transfer fully to the working ends.

Would this be a simple clutch replacement or something more involving?
 
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Old 12-18-09, 06:47 PM
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I don't know what this has for transfer of power as a clutch, but if it's belt driven, that would be the first place to look.
 
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Old 12-19-09, 06:32 AM
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Please post the model number
 
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Old 12-22-09, 06:13 PM
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Too many distractions at this time of the year.

Indypower, its a Gravely 566.
 
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Old 12-22-09, 08:53 PM
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Is this 1 of those Gravelys that is everything rolled into 1? Meaning the "tractor" portion is the same and you just attatch a snowblower, lawn mower, rototiller to the tractor?
 
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Old 12-23-09, 08:45 AM
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that would be a walk behind Gravely with shaft driven front mounted attachments. I am pretty sure there is a manually engaged clutch on these to power the attachments, I don't remember there being a belt drive anywhere in the tractor, but I could be mistaken, it's been almost 30 years since I worked on one.
 
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Old 12-23-09, 11:39 AM
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Correct on both accounts. Its a walk-behind, and the blower is engaged via a pull lever arm. One can here the gears complain initially when engaging the snow impellers. (Other attachments could be connected to the front in place of the blower).

The blower portion functions, as does the drive train, but weakly. The blower will blow snow and the drive wheels will move the monster. The issue is that it cannot push any significant amount of snow before bogging down; and the wheels won't be spinning, while the blower will choke too.

A new 24 inch Walmart snowblower (Murray) can clear more snow and faster then the 36 inch Gravely 566.

So I am wondering what is likely to have worn out on the Gravely 566, a clutch plate?
 
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Old 12-23-09, 01:05 PM
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I believe there is a free service manual located somewhere at the website below. You will have to dig.

OldGravelys.Net: Gravely Manuals

This link points you in direction for help from a Gravely group.

OldGravelys.Net: Where To Get Gravely Help:

Good Luck
 
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Old 12-23-09, 09:10 PM
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Originally Posted by Airman View Post
I believe there is a free service manual located somewhere at the website below. You will have to dig.

OldGravelys.Net: Gravely Manuals

This link points you in direction for help from a Gravely group.

OldGravelys.Net: Where To Get Gravely Help:

Good Luck
Thank you for the leads. Knowing where to look is always half the challenge.
 

Last edited by BigSilver; 12-23-09 at 09:11 PM. Reason: typo
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