On The Struggle Bus Disassembling Nord SK63F - 100 L/4
I usually wrench on cars, and figured how bad could it be to replace the output shaft bearing on some farm equipment gearbox. Well it's absolutely terrible and kicking my ass. This bastard weighs over 200lbs. Motor and gearbox clock in at 325lbs. It took a superhuman effort to get the spring coupling sprocket off the output shaft.
I removed the output shaft seals and all the broken bearing pieces. I have the intermediate shaft and gear free, but there isn't room to get the gear out. Can't access the spring clip for the input shaft because the output shaft gear is in the way. I'm trying to remove the output shaft gear, but it's on there with otherworldly forces. I'm not even sure which way to press it off. I can't see a key on either side of the gear, though the exploded view shows it's keyed. All the other gears are keyed.
I haven't been able to locate good resources online. There are men in sandals beating on the output shaft end with 2 hammers. The shaft ends up falling out the bottom. There's also a video of a massive press, installing a shaft on to a gear, pressing from the same output end. Neither example are the same model gearbox.
I bought a 20 ton press, but it gets tight pressing either way. Sucker is on there. I don't think I'm pressing the proper way with the attached picture, but figured I'd try the other way since I wasn't making much progress pressing the other way. 631,632,602,610,642, 650 are out. I don't see a 643 or 649 unless it's blending in to the gear. 650 was a tough circlip to remove. It wouldn't come out with my pliers. I actually broke one of the 7" icon plier tips. The shaft also has a lip and it made grabbing the circlip very difficult. I got it off with a screwdriver and hammer. Also 652/653 and 651 are still on there. The gearbox side of the driveshaft seems like it's wider than those parts and holding them on. The gear side of the driveshaft also tapers down and rides in a roller bearing which is free. Looking for advice. This is eating my lunch.