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| Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Grizzly G9972Z lathe aging
Finally pulled the gearbox cover plate on my lathe so I could fix the
leaking around the gearbox oil sight glass. To my surprise, it's a plastic sight glass that is held in only through an O-ring. Not sure how I want to take care of it, whether tapping for a threaded sight glass using a NPT unit or whatnot. I'm just sure that replacing the O-ring will lead to future leaking in a few years. |
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#2
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Grizzly G9972Z lathe aging
On 2010-02-27, Louis Ohland wrote:
Finally pulled the gearbox cover plate on my lathe so I could fix the leaking around the gearbox oil sight glass. To my surprise, it's a plastic sight glass that is held in only through an O-ring. Not sure how I want to take care of it, whether tapping for a threaded sight glass using a NPT unit or whatnot. I'm just sure that replacing the O-ring will lead to future leaking in a few years. McMaster has plenty of threaded sight glasses. i |
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#3
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Grizzly G9972Z lathe aging
On 2/26/2010 20:52, Ignoramus27062 wrote:
On 2010-02-27, Louis wrote: Finally pulled the gearbox cover plate on my lathe so I could fix the leaking around the gearbox oil sight glass. To my surprise, it's a plastic sight glass that is held in only through an O-ring. Not sure how I want to take care of it, whether tapping for a threaded sight glass using a NPT unit or whatnot. I'm just sure that replacing the O-ring will lead to future leaking in a few years. McMaster has plenty of threaded sight glasses. I went there last night, along with Grainger. After satisfying my perfectionist urges, it looks like I'll get new O-rings. Though a 3/4" x 14 tpi NPT might work in the .982 diameter hole. A bit too big for the starting diameter (about .020) but the fit should be good ofter a eith inch or so. |
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