Title: could this be why my OC-46 won't move?
Post by: andy b. on October 02, 2004, 08:54:01 PM
Post by: andy b. on October 02, 2004, 08:54:01 PM
well i got everything ripped apart this morning. could this be my problem 
.....
(http://home.ptd.net/~hamrdog/oc46_pinion.jpg)
(http://home.ptd.net/~hamrdog/oc46_bullgear.jpg)
i also found out why the clutch didn't seem to work. it isn't that it was out of adjustment, it was that is had ZERO adjustment (meaning they just stuck the clutch linkage back together and never even attempted to adjust it).
andy b.
.....(http://home.ptd.net/~hamrdog/oc46_pinion.jpg)
(http://home.ptd.net/~hamrdog/oc46_bullgear.jpg)
i also found out why the clutch didn't seem to work. it isn't that it was out of adjustment, it was that is had ZERO adjustment (meaning they just stuck the clutch linkage back together and never even attempted to adjust it).
andy b.
Title:
Post by: pvcarey on October 03, 2004, 02:24:50 PM
Post by: pvcarey on October 03, 2004, 02:24:50 PM
ya think so? I had to replace the one on my oc3, it was caused by the bearings on the drive wheel failed and the man that I bought it from just kept pouring oil in and working it.
Ron
Ron
Title:
Post by: andy b. on October 04, 2004, 01:54:54 AM
Post by: andy b. on October 04, 2004, 01:54:54 AM
well thank goodness the bearings all look okay. i was too dirty once i got the bull gear out to take another picture, but the teeth in the picture i posted (of the bull gear) are actually the GOOD looking ones.
needless to say, there were no good looking pinion teeth.
andy b.
needless to say, there were no good looking pinion teeth.
andy b.
Title:
Post by: mtncrawler on October 04, 2004, 06:51:46 PM
Post by: mtncrawler on October 04, 2004, 06:51:46 PM
Pretty neat. Question though. To me the way those teeth are ground down would point towards a pinion gear bearing failure yet yours don't look bad enough to do that. Bull gear bearings toast?
Title:
Post by: andy b. on October 05, 2004, 03:36:58 AM
Post by: andy b. on October 05, 2004, 03:36:58 AM
actually, all the bearings are good. what it looks like to me, is that two teeth were welded up on the bull gear. i also looked at them a little closer today, and maybe a small portion of several other bull gear teeth and two pinion teeth were welded on the ends. my guess is that the repaired teeth were not ground to the correct contour or surface finish, and probably not the correct hardness. as the pinion meshed with the bull gear, each revolution caused a small amount of accelerated wear on the pinion. my guess is that the pinion lasted a few hours before it became seriously distorted and at that point the crap hit the fan and it imploded, doing additional damage to the bull gear. when i called Zimmerman's today they told me to bring everything down with me so they can be sure only the pinion and bull gear ring are bad. i figure with the gears and seals it will set me back about $400 or a bit less. i really can't complain about that since the work i have lined up for the crawler would cost me way more than the total i have into the machine to either rent something or have someone come out and do it. i'm not planning on digging a rock quarry, but i do have a lot of dirt to move, fill to spread, and leveling to do.
andy b.
andy b.