Gene, what is the exhaust lift cultivator # if it is different from the a134? And if what I have isn't a 134, what is it? It is original and I've seen quite a few of them on A's. I know its not a 136 or 138... mounts differently... and don't take this as me being a smart A, but are you going by a a134 manual or your personal knowledge about the lever?
i have found pictures of all the cultivators except this one which i assume is the exhaust/a134 lift. This tractor doesn't have any other exhaust lift components on it nor did other tractors i saw with the same levers with and without a pulley. This lever mounts on the two bolts on top of the tranny behind the shift lever and at front under one of the bolts holding the cult bracket onto the torque tube. The gang bars are S shaped just like the standard a-138, but i have found that those were options for others as well and may not be original to the tractor. The "standard" rear rockshaft is NOT made to accept a platform mount lift... the tab to attach it to a lift lever is on the left side of the rockshaft, but not on the very end of the rockshaft like on the a136 and a138 rockshafts. The a136, a138, and a437 lift levers mount only on the torque tube and the rear cultivators on the a136 and a138 are lifted via a lift link that is a bowed piece of flat steel that mounts on the lift lever via a bracket and then connects to the very end of the rear's rockshaft (standard configuration as per the manual).
Everything i've heard and seen in their manual says that the independant rear lift was used mainly on the a437 vegetable cultivators. This makes sense because of the additional weight of the mid mount vegetable toolbars would make it much harder to lift them all together. Also the rear cultivators for the 437 are listed as a special attachment as well as the independant rear lift lever, not standard. You could use the independant rear lift with the independant rockshaft on the others, but that wasn't listed as the "standard" configuration.
I found at binder books that the A-134 cultivators are listed as one row cotton and corn cultivators. I'm ordering it to see what it looks like compared to mine. I know for sure that the lift levers that mounts at the rear of the tranny and at one point on the torgue tube like I have is not for the 136, 138, or 437 cultivators because they are never shown in that manual. Another A I saw recently had the same lever I have with the exception that the rear arm with the pulley had been removed, apperently because the past owners either removed the rear cultivators or opted to use the optional independant rears. From what I hear, most simply didn't use the rears. I've searched the internet for DAYS for pictures of the a-134 and binder books has the only reference to them I've seen. The manual for the a134 and a 435 vegetable cultivators was printed in 1940 versus 1945 for the a136, a138, and a437 veg cultivators. Its MCD-4704 at binder books if anyone is interested. My conclusion is that the lever i speak of was used with and without the exhaust assist. If i can figure out how to post a picture on here of it, i will as soon as I take a picture of it. And this is an original lift lever with two levers for the front and a third, inboard lever that connects to the left side of the rear rockshaft... All three are mounted together, with one heavy spring for the two levers that lift the mid mounts and a smaller spring for the rear lever. The pulley is also mounted at the pivot point for the rear lever. I'll try and get a picture up today. I don't have it mounted on the tractor cause it isn't painted yet, but I'll lay it out how it goes.
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