I'm rebuilding (mostly cleaning & painting) a horizontal mill, SN 10-3676. I've cleaned and painted the main casting for the saddle and now I'm about to re-assemble it. But before I do, I'd like some advise on whether or not to add an oil passage that seems like it should be there but isn't.
Image 01_before.jpg shows what the internals of the saddle looked like before cleaning.
Image 02_after.jpg shows the plain saddle after cleaning and some painting.
Image 03_oil passage 1.jpg shows the oil passage in question with a long 5/16in drill inserted into the oil passage for reference. The oil passage is blind drilled into the saddle from the rear and intersects with a passage from the left copper tube in the oil reservoir. It contained two sets of pipe cleaners, one set of 4 from the oil reservoir and one set of 2 from the front to the rear of the oil passage. The rear opening was sealed with an interference fit 3/8in plug that I drilled, tapped 1/4-20, and removed with a slide hammer.
Image 04_oil passage 2, rear.jpg shows a rear view of the oil passage with drill sticking out.
Image 05_oil passage 3, L side.jpg shows a left side view of the socket in the saddle casting that receives the table screw nut. The drill is placed over the internal oil passage to about the depth of the oil passage.
I've reached a 5 pic limit on this post. I'll try to continue in more detail by replying to this thread. My question is whether or not to add an oil passage so that the table screw nut receives oil from the oil passage in question.
Walter
Image 01_before.jpg shows what the internals of the saddle looked like before cleaning.
Image 02_after.jpg shows the plain saddle after cleaning and some painting.
Image 03_oil passage 1.jpg shows the oil passage in question with a long 5/16in drill inserted into the oil passage for reference. The oil passage is blind drilled into the saddle from the rear and intersects with a passage from the left copper tube in the oil reservoir. It contained two sets of pipe cleaners, one set of 4 from the oil reservoir and one set of 2 from the front to the rear of the oil passage. The rear opening was sealed with an interference fit 3/8in plug that I drilled, tapped 1/4-20, and removed with a slide hammer.
Image 04_oil passage 2, rear.jpg shows a rear view of the oil passage with drill sticking out.
Image 05_oil passage 3, L side.jpg shows a left side view of the socket in the saddle casting that receives the table screw nut. The drill is placed over the internal oil passage to about the depth of the oil passage.
I've reached a 5 pic limit on this post. I'll try to continue in more detail by replying to this thread. My question is whether or not to add an oil passage so that the table screw nut receives oil from the oil passage in question.
Walter