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Replace king pins 12000 lb steer axle7/29/2023 In my experience there's usually no easy way to do it-you just get lucky once in a while.`Ī Google search for "King Pin Press" yields a gazillion ideas if you wanted to concoct something. It takes a big press to move those things-those big C-frame clamp/presses worked because you screwed 'em up as tight as you could with a rattle gun and if nothing moved you gave the head of the bolt a couple good whacks with a hammer to shock things loose. Sometimes a couple cycles of hot/cold is all it takes to break the bond between the axle and the kingpin. Once it's up to temp let it cool completely before trying to drive the kingpin out. Heat the whole boss till it's a dull cherry red but stop every so often to give the top of the kingpin a few gentle taps with a hammer-you're not trying to move it, just break it loose. On the other hand, getting some heat into the axle boss can really help. I'd say that cutting one out with the hot wrench is your last resort because it creates a whole set of different problems. It's been a while since I did any kingpins, let alone bigger ones, but I think Dodge has pretty much nailed it. I bought a gas powered jackhammer for track pins and king pins and fortunately haven't had to use it. I don't know if a porta power would work, it seems the impact does most of the work. Punches with 4 foot handles become mandatory at this point. The king pins will now be greased through the grease fittings on the ends. Install the rubber o-rings into the lip of the end caps and install the caps onto both ends of the king pins securing them with the grease fittings. A small hammer will mushroom the top, a big one will get the pin out. Install the snap rings in both the upper and lower spindle bores. :D I give it three hits and if I don't have any movement I get the 20 pounder and start whaling. Give the kingpin a few good whacks with a good hammer and it might just slide out. Supplementing the king pin bushingsare steel tapered roller thrust bearings which carry the weight of the axle center and, subsequentlythe entire weight of the front of the vehicle. Remove the top and bottom cap and withdraw the kingpin. The upper and lower ends of the king pins fit into replaceable, steel-backed bronze bushingswhich are pressed and burnished into the knuckle yokes. Don't try to torch them out, the pins are long enough the torch tip would melt before the pin and now you have a really hard layer of pin to rub drill bits on. The pins taper so they can wedge into the KP and sometimes they get so tight you have to drill them out. Not funny when you find another locking pin after twenty minutes of swinging a twenty pound sledge. Don't laugh, axles can get so dirty and greasy on first inspection you think it only had one lock pin. Get the verticals really clean so you can find all the locking pins and also to tell which way they go. Fits Eaton conventional steering arm axles rated 12,000 and 13,000. Not getting them to budge with a hydraulic jack underneath. The king pin serves as the pivot point which attaches the wheel spindle to the axle. Gerry there can be two locking pins on some kp's and a lot only have one. Trying to replace kingpin bushings and pins on a 12,000 lb axle.
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