Super H trans

[RedMVa]

The shift fork and detent are designed to move and position the sliding gears, they should not need to hold the gears in place. If they are required to do that, they will wear. But they do need to be operational. the ball (if still round after cleaning and a bit of polish should be OK. if worn then it needs new. Any ball bearing of that size will do fine. Stainless is not used in balls because it is usually softer than carbon steel or alloy steel. I think the rails can be slid out along their length from the loops holding them in place. Do look to those bearings. Jim

Slight correction on the detents not holding gears in place, respectively that’s exactly what they do especially going uphill or downhill depending on the gear. And that in turn can cause gear wear and or chipped or broken teeth if they’re not holding. I’ve also seen locked up trans with broken gears caused by collapsed or wore detent springs. It’s just a small thing I think a lot of people overlook and it’s a few dollars to replace them compared to what gears cost. Whenever I have a trans top off I always check them and usually replace at least the springs.

 

[tomturkey]

Chapter III of this long ordeal. lol. I have gotten the tractor split and the "input gears and shaft" or input shaft as some call it removed. All the bearings gently removed. The bearings do show some wear by the movement of the cage in the outer rings. One has a IH on it which could mean it is original the other just has a bearing # and both were made in the USA. The most surprising thing is the part number stamped on the input shaft with the 35/18 gears. That number IS NOT the number I understood to be the part number from my research, for a Super H which was 358024R1. Rather the part # I have is 52945 DC. Which according to Steiner comes from a H or HV I believe. The nomenclature plate appears to be original to the tractor with what appears to be the original rivets, with Model SH serial#11768 and max idle speed 1815. Steiner's site indicates the new input shaft they are selling replaces part #52945DC so I have ordered that replacement part. I will go to the bearing store tomorrow to see if the can match up the bearings. Who knew that working on old tractors could be dramatic soap opera. I surely have appreciated all the help everyone has offered up. gobble

 

[D Slater]

Chapter III of this long ordeal. lol. I have gotten the tractor split and the "input gears and shaft" or input shaft as some call it removed. All the bearings gently removed. The bearings do show some wear by the movement of the cage in the outer rings. One has a IH on it which could mean it is original the other just has a bearing # and both were made in the USA. The most surprising thing is the part number stamped on the input shaft with the 35/18 gears. That number IS NOT the number I understood to be the part number from my research, for a Super H which was 358024R1. Rather the part # I have is 52945 DC. Which according to Steiner comes from a H or HV I believe. The nomenclature plate appears to be original to the tractor with what appears to be the original rivets, with Model SH serial#11768 and max idle speed 1815. Steiner's site indicates the new input shaft they are selling replaces part #52945DC so I have ordered that replacement part. I will go to the bearing store tomorrow to see if the can match up the bearings. Who knew that working on old tractors could be dramatic soap opera. I surely have appreciated all the help everyone has offered up. gobble

Could be part of problem if some parts are mixed. What casting number does housing the input shaft is located in, would have 6 numbers and R number suffix? Other than a late H they have 4 numbers. Should have later number on input because the number started being used on late built H tractors. Front bearing on input shaft and bearing retainer was bigger. If I remember right the spacer and front yoke was slightly different. Have to check on that to be sure.

 

[tomturkey]

Could be part of problem if some parts are mixed. What casting number does housing the input shaft is located in, would have 6 numbers and R number suffix? Other than a late H they have 4 numbers. Should have later number on input because the number started being used on late built H tractors. Front bearing on input shaft and bearing retainer was bigger. If I remember right the spacer and front yoke was slightly different. Have to check on that to be sure.

The bearing housing has a casting # 6577 D, the transmission case casting # is 658037RI. Don't really know that I can conclude anything here unless all castings for Super H's have the r1 suffix. With such a short run of Super H's I can understand why no mfg. has tooled up to make the 358024R1 input shaft.

 

[tomturkey]

If it has been run much with a bungee holding it in gear, it is quite likely that a worn shifter fork is part of your problem now.

Jim. now that I have the top off of the transmission, I am happy to report that the shifting fork that holds the 4/5 slider in 5th (road) gear shows no unusual wear at all. My Granddaughters husband drives this tractor on a 3 day tractor ride, usually covering 160 miles. each year. Its been bungee corded the last two outings. I am hoping to eliminate the bungee this year, just like I hoped last year when I put in the new 4/5 sliding gear. We will see. gobble

 

[caterpillar guy]

I will guess if you count the teeth on the ring gear and pinion gears you will probably find the 18/35 is the tooth count for each gear to get a certain speed and if there were different gear sets for it then they would need the tooth count to match them up when putting in most likely as the plant during assembly to get the right mesh for the correct speed. Tucks use that method to tell the gear ratio with them stamped on the end of the pinion shaft right ta the end can be seen with the nut on if you clean the end of the shaft. IF these numbers are on the need I would say that is what they are. Or possibly at the gear end.

 

[used red MN]

I will guess if you count the teeth on the ring gear and pinion gears you will probably find the 18/35 is the tooth count for each gear to get a certain speed and if there were different gear sets for it then they would need the tooth count to match them up when putting in most likely as the plant during assembly to get the right mesh for the correct speed. Tucks use that method to tell the gear ratio with them stamped on the end of the pinion shaft right ta the end can be seen with the nut on if you clean the end of the shaft. IF these numbers are on the need I would say that is what they are. Or possibly at the gear end.

Just FYI, the tooth count in this case has nothing to do with the “ring and pinion” teeth count. The teeth count referenced here is of the transmission input gear (photo of one above and also several examples in the links) in relation to the teeth count of its mating gear on the transmission lower shaft. The ratio of what many refer to as the “constant mesh” gear set obviously dictates the speed of the lower shaft and gear speeds 1-4 in this case.

 

[D Slater]

The bearing housing has a casting # 6577 D, the transmission case casting # is 658037RI. Don't really know that I can conclude anything here unless all castings for Super H's have the r1 suffix. With such a short run of Super H's I can understand why no mfg. has tooled up to make the 358024R1 input shaft.

Can't remember details like I used to. Would say someone replaced the input housing and shaft used from a H onto SH. Should work like that if front bearing on main shaft fits. Can tell you splines on both main shafts are the same. Later R1 input housing and shaft uses a shorter spacer between bearings and a shorter yoke on front Think I do have SH main shaft laying around that I could check length and OD where front bearing goes if it would help. Have installed SH gears in H housing and installed M&W 9 speed from a H in SH. Mostly all comes down to pilot bearings and setting forward to rear location of input shaft. Think late front yoke is shorter overall but space seal touches is same length. as a regular H.