The book on the NW80 can be confusing, when you get back to the machine, look in the bottom of the toggle case and see if there are parts there. If the machine does not have the case in place, look on the floor below. I have had this happen to me and usually the parts don't drop to far. Good luck.
might have a solution. Swing shaft is hollow, and has a shifter rod inside it about 1" diameter or so and maybe 5 feet long with two slots in it for the adjustment keys. (one slot is about 2 and a half feet from the toggle mechanism, the other slot is near the far end , about 5 feet away from the toggle mechanism.)I have seen this break at the milled slots , as it is pretty thin after the slot is milled, and if someone were to really reef on it it could break, thus you can only swing one way. (probably broke at the far end, if it was broke at near end , machine would not swing either direction)
you should be able to verify this with the machinery NOT turning... move big swing lever fwd and watch the clutches, one or the other will get tight( close up), then move lever back back , the other clutch should tighten up. also you can watch the linkage on the "other side" and it should be obvious, if something is amiss one way or the other in there... i bet it is the long shifter rod that is busted.
to fix you gotta take all the toggle end apart, remove BOTH clutch adjustment collars and keys, then pull the shaft. then you will see whats busted. to fish out the broken piece , use a strong magnet on the end of a 5-6 foot long 3/8" rod.
then you can weld shifter shaft ,and reassemble, and re adjust... and you should be moving dirt.
still have Questions? Call me if you wish 920-210-2875 Dave Pickhardt
(c) Historical Construction Equipment Association 2013-2022
16623 Liberty Hi Road
Bowling Green, Ohio 43402
419-352-5616 - Fax 419-352-6086
Equipment, archives and museum inquiries firstname.lastname@example.org
All other inquiries email@example.com