Re: front end shimmey on H narrow front

Posted by Bob M on July 10, 2003 at 07:49:13 from (165.170.128.65):

In Reply to: front end shimmey on H narrow front posted by alan linda on July 10, 2003 at 06:54:41:

Alan - A couple possibilities:

1 - Slack in other steering parts (worn worm, worn worm shaft bearing/bushing, sloppy U-joints). Check these parts on your H - often the combination of a bit of slack from each component results in enough total slack to mess up the steering.

2 - Improper caster to the lower bolster. Some Farmall NF tractors have a wedge-shaped shim between the flanges of the lower bolster and the pivot. The wedge angles the lower bolster closer to vertical reducing steering caster. This reduces steering wheel effort, but can make the front end more prone to shimmy. Check to see if your tractor has a wedge - if it does, remove and see if steering improves. Punch below for a shot of the shim that came on my NF Super H - note the word "FRONT" cast on the thinner side.

• bolster wedge shim

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