More 311B Questions

I got another G1103 inside hydraulic control lever to replace the broken original. I found a thin nut to use as a spacer since the pivot bolt shoulder is 3 3/4 and the 2 levers are 3 3/8 combined. The rear rod for the depth control needs another 1/4 inch of spacer to line up with the depth control lever that should be G14381. I tried threading a thin nut against the pivot bolt shoulder and this lines the rod up but there are only 3 or 4 threads left for installing the bolt in the casting. Also, the rod clevis catches on the depth control quadrant before reaching the stop if adjusted to max so something isn't right. It looks like the offset bend in the depth control lever is opposite of what it should be but is correct according to the parts manual pictures. There is a number stamped on the depth control lever that looks like G17062 but I can't find anything with that number. I would like to know what is going on before I start bending factory parts to fit. The tractor S/N is 6129719.

The torque tube was low on oil and transmission very full when I drained them. Can the same fluid be used in both in case fluid moves between compartments?

G17062 is the implement mounting rail on the right side of your engine. Stamped G17062 Looks more like G17052. It may be the p/n for the quadrant lever that is spot welded to G14381 depth control lever to which G10928 control rod clevis attaches.

You have the wrong pivot bolt G49054 (1/2 x 3-1/8). That pivot bolt is for a single lever if you don't have an upper control valve for remotes. You're also missing 3/4" spacer between the eagle hitch lever and the cover that would bring your control rod out in alignment with the depth control lever. I am not sure at this point what pivot bolt you need, it probably is G49055 (1/2 x 4-7/8).

My 311B is also 1959 so your lever arrangement should be the same as mine. I took a quick look and pic.

I'll address the migration of torque tube hydraulic oil into the transmission tomorrow. It is not an immediate concern if you are not stressing the transmission with hard pulling or fast travel but it's something you will need to address down the line. Sooner the better IMO. Your transmission uses a 90 wt gear oil while general purpose hydraulic oil is in the range of 10 wt.

Joe

G49054 (1/2 x 3-1/8)
G49055 (1/2 x 4-7/8)

Those emots are 8's. I use classic form for posting and it doesn't always come up right on modern form.

Use this post for the linkage and lever issues and start another post for the oil migration problem. I'll respond and also other people here will have very good info on the oil migration as it is a common problem in several models of Case tractors

Joe

Those are some very interesting pictures there Joe. When I went out this morning to feed the livestock (4 cats) I looked at the 300 rn and the 300b and they do not have the spacer at all. I think that it is probably needed based on my past usage of these Tractors on various jobs. On a sidehill the seat hinges can interfere with the movement of the Eagle Hitch lever.

Thanks Joe, that answers the question of why things don't line up. The pivot bolt I have measures 4-1/8 inches compared to your 4-5/8" which means it is 1/2" too short. It also has an allen head so doesn't match either of the bolts listed for this tractor. Using the G49055 bolt and 3/4" spacer would fix the alignment issue but reversing the bends in the depth control lever would also line things up. This also provides more clevis/quadrant clearance. What issues will I create fixing it this way?

The spacer on 300B is factory p/n G49605. According to parts list 300rn does not have the spacer. The pic is linkage off my 1956 310rn. There is no spacer, control rod is bent to align with the depth control lever. In at least one of the pics in the 300rn parts manual the control rod is shown with bends, it looks factory to me.

Joe

I think you can get away with bending the control rod ok, check your seat clearance with a good amount of weight on it. The spacer doesn't necessarily need to be 3/4". Match rod bend, seat clearance, and bolt length and I can't see any problem doing it that way.

Joe

The G49055 bolt shank is actually 1/2" x 4-7/8". I just took the easy route measuring because was cold and dark in the shed and didn't correct it.

Joe

Thanks Joe, that answers the question of why things don't line up. The pivot bolt I have measures 4-1/8 inches compared to your 4-5/8" which means it is 1/2" too short. It also has an allen head so doesn't match either of the bolts listed for this tractor. Using the G49055 bolt and 3/4" spacer would fix the alignment issue but reversing the bends in the depth control lever would also line things up. This also provides more clevis/quadrant clearance. What issues will I create fixing it this way?

I wouldn't mess with the depth control lever or bend the control rod. If the pivot bolt is a standard 1/2" bolt just get a longer one and add flat washers where the missing factory spacer was to align the control rod with the depth control lever. You don't have to have a solid spacer, flat washers will do just fine in this type of application.

Joe