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Hey folks, just found your group & would be happy to answer any questions I may have knowledge on.

I was a senior quality technician at the Hamilton factory until some ass VP from corporate decided he didn't like our city & ordered our factory closed without his superiors approval.

He was fired very quickly but the damage was done because of fear a reversal of policy would impact share prices negatively. I could go on about Wall street ruining thousands of lives but today we know it appears a tiny number.

My knowledge on Hamilton product is vast, having started as a forger & progressing to the toolroom gleaning metallurgy experience in the process. As one of the 2 most mechanically experienced quality technicians I was called upon to troubleshoot field complaints with our equipment (a task I relished, it was a lot of fun cracking a case, as an inspector).

I can add a little story about discovering a design flaw in the 5100 series grain drill that increased the rate at which the drive chains came off the drive gear sprockets.

The engineers changed a major dimension without accounting for the location of the drive wheel sprocket. An very rare error by our great engineers.

The patch to repair it is to drill 4 holes into about a 4" x 6", 1/4" thick plate. I don't recall whether the bolts were 5/8" or 1/2" but the bolts need to be replaced by ones 1/4 to 1/2" longer. The holes should be 1/32" larger than bolt diameter.

Then you moumt the plate under the wheel drive sprocket, moving the sprocket to its correct position 1/4" outward. This fix was implemented during only the last year & a half of production. This should be corrected on all working 5100 series drills & possibly one 5300 series model (don't believe it was still in production}.

If your drill does not have a 1/4" plate, check the alignment of the chain sprockets. If it appears alignment would benefit from adding the plate, do so. It will extend chain life & improve performance.

Our very new quality management never had the guts to issue a quality advisory to our customers on this. They buried their heads in the corporate structure hoping no one noticed they didn't desreve to be there.

Inspector Pat

IH 5100 Grain Drill
Operating and Attachments
Replies 9 Post by goleaf