Posted by G. L. Perry on September 17, 2009 at 10:41:11 from (67.162.89.147):
In Reply to: jet star 3 brakes posted by Ed4 on September 16, 2009 at 19:05:43:
I had a JS3 once and did brakes. Yes, seals at bull pinion shafts. Can get those,using number off seal If I recall. Have to use a plastic bottle or sometthing similar on shaft to pass it over it, so as not to cut it up on shaft splines. I cut bottle, wrapped tight, then greased it to use. Once you pull brakes cover there is one disc, then pull the metal actuator assmebly, then another disc. The backing plate that is next opens to trans, so you may need to lower level of oil below that area. Good chance to drain and re-new if old tractor. Be careful of the thin metal shims on back of that plate, they give you bearing clearance. I had to remove one of mine to tighten the shaft up. Lots of bolting and unbolting to try each time. I left the seal out for those tests. Also the cover has three spacers over bolts that need to go in right order, think one is longer and has to be in right place. They have marks to identify on the spacers. sometimes the springs (3) on the actuator assembly are broken, and the bearings between them may need cleaning and greasing. If they are wet, maybe just clean up and grease. I never found new discs with proper spline centers, so had mine re-lined at a brake shop. They couldn"t put the grooves in them like orig, but said they never had to do those on other brands they covered and it worked fine. And they did work good! You really need to get a shop manual or the IT manual that covers all MM"s to go over this info and be able to re-read as you go. They have those manuals on this site for fair price. Good Luck. P.S., on old tele-flo"s lifts, the oil used to go thru the gear case, and a bad gasket below made it leak into the gear case. I think they re-routed those paths thru metal tubes on outside on the later series and won"t do that. Do you have the "lay-down" filter in front, or one under the foot platform? Check all the fittings and hoses, lots of them on these. I replaced my hoses and found some flare fittings kinda loose. There is a seperate book on the tele-flo repairs, hard to find, but I took mine to old MM mechanic to have rebuilt. Looked to hard for me.
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