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DoAll surface Grinder, packing seal on hyd cylinder


Jan 17, 2007
Philadelphia, PA
Hi All,

I have a 1950's Doall Model D-10 surface grinder and it's been a champ for all the years I've owned it, but it's developed a leak in the table traverse cylinder. Looking at the diagram, the seal is by rope packing.

In 30 years in the industry, I've never dealt with packing type seals! I can't imagine they're too difficult, if you know the ins and outs.

So can anyone tell me what a novice would need to know before tearing out and replacing these seals? Anything to look for, how to measure the rope, pitfalls to avoid when putting it back together? Any insight would be appreciated! Thanks guys!