Posted by Bob M on November 12, 2008 at 08:25:39 from (151.190.254.108):
In Reply to: M steering problem posted by Dardo on November 12, 2008 at 07:49:48:
The half moon gear can be swapped for a full circle gear.
However getting the old gear off the pivot shaft can be an SOB as you have discovered. It’s on a tapered spline and is usually stuck on pretty well. Sometimes a suitable puller can break it free. However I’ve always had to resort to “brute force” to get ‘em off:
1 - Jack the tractor so the front wheels are off the ground (jack from beneath the clutch housing, then crib for safety).
2 - Remove the front wheels/lower bolster assembly at the flange (4 bolts beneath the fixed bolster) and set the front wheels aside.
3 - Invert the castle nut and thread it down so it’s flush with the top of the pivot shaft (to protect the shaft threads during the next step…)
4 - Now use your biggest hammer (I use an 8# sledge) and give the top of the shaft a few good licks. With luck the gear will pop free.
5 - Now remove the castle nut and slip the gear off. (Crib beneath the pivot shaft first so it won’t fall out – the shaft is heavier than it looks!)
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Tip: Check the pivot shaft bushings for looseness and replace ‘em if necessary while you’ve got the front end apart. Any radial play at all - particularly at the upper bushing – will result in sloppy steering even with new worm and gear installed!
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