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Discussion Forum
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Loose steering on Massy Harris 30

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Brett

08-26-2001 18:57:51




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Is there anyway to tighten the gears in the steering box to get rid of some of the wobble. Or am I looking at tring to find a new one. If thats possible.




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ALAN

08-26-2001 22:43:26




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 Re: Loose steering on Massy Harris 30 in reply to Brett , 08-26-2001 18:57:51  
It depends on the year. Some have a bolt on them, some shim, and some just wear out. E-mail me and I'll walk you thru what to look for. P.S. Most U-joint slop is blamed on the steering gear, don't forget to check that out too. - ALAN



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BRETT

08-27-2001 15:23:46




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 Re: Re: Loose steering on Massy Harris 30 in reply to ALAN, 08-26-2001 22:43:26  
Allan, this tractor is a 1951. Everything seems to
be tight. I drove it home a few days ago and I thought the front wheels were going to come off. It could of been me. This is the first row crop I've ever driven. Thanks Alan



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ALAN

08-27-2001 18:07:10




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 Re: Re: Re: Loose steering on Massy Harris 30 in reply to BRETT , 08-27-2001 15:23:46  
Brett,
Dad has a 1948 30GR sitting by the garage. Went up & looked at it. Under 50 years of sludge on the end of the steering gear opposite the input shaft is a larger nut and bolt. (just like on your older cars) The book says to jack the front wheels off the ground, loosen the nut and tighten the bolt until there is "slight perceptible drag on the bearings"

Some older models had a set of shims around the input shaft instead and you "cut and removed" to take up the slack. One at a time of course.

The book for my 81 has an interesting statement under the heading "Backlash on studs in cam". "On the Row Crop models, end play in the front wheel king pin can be adjusted by tightening the nut on top of king pin holding it on a sector stud." No idea what that means. Maybe someone else does. I think this refers to the older "stud" style steering gear. I think your steering gear has teeth.

Well, hope this helps, post again or e-mail w/ questions. - ALAN

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Tom

08-27-2001 19:59:53




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 Re: Re: Re: Re: Loose steering on Massy Harris 30 in reply to ALAN, 08-27-2001 18:07:10  
The steering is a worm and sector gear set-up. The worm gear is hooked to the steering wheel thru the u-joints. The worm shaft is mounted in bearings at each end and is adjustable for both bearing preload and lash because the bearings are fit into a sleeve that can be rotated around and "cammed" closer to the sector shaft gear teeth. You will undoubtly have to remove the grill, hyd. tank if equipped, and tin cover and clean several decades of debri from the front of the steering gear, after you do this you will find out why most massey row crop steering gears did'nt get the best of care, several of my tractors when I got them had piping added to the fill hole threads and a grease zerk where you could easily at least pump the box with grease. You may end up pulling the box off, I had quite a chore with my 33, the little bearings and outer races are still available, the cone portion of the bearing is part of the worm shaft. I have the Timkin no's written down in the shop. Good luck you will need it

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