Gravely walk behind

My Gravely walk behind won't go forward? The linkage seems OK, but for some reason it doesn't kick in? I am going to work on it this morning by cleaning it real good and lube it up. Any suggestions much appreciated. Thank you!
Bob
 
There are adjustments you can make to the actuating levers. It's all in the manual. If that doesn't work it could be the clutch is shot.
 
If it has a high and low range, make sure that it's engaged in one or the other. If it's not engaged, the forward/reverse lever won't do anything.
 
OK Gentlemen,
I did work on it and cleaned it up as when using last summer a lot of soil accumulated on that area. The oil plug removed and added gear oil. oiled the moving parts. Worked the unit back and forth and it will work with the small shaft in the in position, but not in the out position. There is an adjustment on that small shaft and will work on it in the morning. Thank you for your comments, and if you have further ones please keep them coming.
Bob
 
(quoted from post at 19:44:32 11/09/13) OK Gentlemen,
I did work on it and cleaned it up as when using last summer a lot of soil accumulated on that area. The oil plug removed and added gear oil. oiled the moving parts. Worked the unit back and forth and it will work with the small shaft in the in position, but not in the out position. There is an adjustment on that small shaft and will work on it in the morning. Thank you for your comments, and if you have further ones please keep them coming.
Bob

Small shaft? Have you got a later model with the 2 speed tranny, I forget the name? Older models had 2 levers- one for forward/reverse and one for high/low range. Later models had a 3rd lever under the right handle bar IIRC for an additional high/low. Is that what you have?

ETA- Swiftamatic is the name of the extra hi/lo- Check You Tube for tutorials on adjusting Gravely trannys.
 
Bret,

I believe it is a 1966 model, and has (4) speeds
forward and reverse. It has a high/low range lever
down under for this adjustment. It will not go into
low range. the range I need to rotary plow.
Bob
 
Gentelmen,
I just want to thank you for the support, and help. I really got into it today, and took the wheel off so to get down there and see what was wrong as I couldn't get that oil plug back down where it belong. Pulled the wheel shaft out, and peeked in there and noticed the hub to the inner shaft was in the way. Well that's no oil plug, it's a pin for the inner shaft to slide on and has to go into the proper slot or it won't work. Please don't make the same mistake! That's a hard way to get an education. It works good now!
Bob
 

Glad you got it! Gravelys are pretty simple really. The hardest part is usually getting 50 years of rust and dirt to move out of the way and let you do whats needed.

Hey, someday if you really want a nice rotary plowing rig find yourself and older 2 speed model with the geared wheels and 12" tires. Makes all the difference in the world. Much, much easier to handle and you won't ever get stuck.
 
Bret,
OK, some day I will do just that, but right now I
have (4) that are not working. They are all newer
models, 1964, 1966, 1967, 1968, there was only (1)
running. I had it in the community garden bush
hogging tough grass and corn stocks, then raking
out all the stubble, then roary plowing it. Got
bad bug problems! Gravely lasted until I was done
for the day, then quite as it was smoking pretty
bad and fouled the plug. Thank you for the
information Bret.
Bob
 

Bob, when you work them hard you have to maintain them well. Make sure the fan belt is tight enough to be turning well, I've seen them slip. Make sure the air baffles are all there and that the fins and passages are fee of dirt and debris. An air cooled engine working hard needs air flow to cool it. Don't lean the tractor out too much and if you have an oil filter keep it changed, keep the oil topped off and in warmer weather or when working it hard use straight high quality 30 weight. You also want to make sure the timing is on, too much advance will kill them. They will pass a little oil when working hard, mostly form old gaskets, but the oil fill cap up front will vent oil vapor when she's bulling.

They are great old machines and you don't need to run them flat out to make power with that long stroke, low speed engine.
 

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