texasgeartrain
Titanium
- Joined
- Feb 23, 2016
- Location
- Houston, TX
Bought an old J head several years ago. With other projects I've been using as is, though I know its needed some love. In fact the seller who sold to me, told me the adjuster for table gib was stuck when I bought it. So on certain heavier cuts the table might chatter or jump. The thought at the time, was gib was probably wore so bad that adjuster was bottomed out.
Anyway, I'm not getting into a rebuild yet, but I have a particular project I want to do where I want this machine a little tighter. Decided I wanted to clean, lube and tighten this a bit before beginning the project.
The gib adjuster simply would not come out with table on. The slot for screw driver was pretty well whipped. So I yanked table off, and popped gib out to access the adjuster. Well good news, adjuster was not bottomed out. It was bent !
I had to sneak in with a cut off wheel and cut notches to pry on it assisting to get it unscrewed.
To give an idea, here in the saddle is where I slipped in with cutting wheel:
With that squared away I wanted to clean and adjust backlash on cross and long feed nuts. Whoever installed them never cut the nuts all the way through . Which defeats any of their respective adjusting screws. They need to be cut all the way through and a gap maintained between them to be able to adjust backlash toward zero.
One of my favorites though. Oil line to the nuts carrier. . . One in particular feeds lube to long feed threads. Line was hooked up, but no one drilled the nut to allow oil in . The oil line was going to a dead blind hole.
Note the circle tattoo on bronze just above my thumb, also circled in red. That should be a drilled hole, and lines up to the oil line port in carrier above that:
Anyway, I'm not getting into a rebuild yet, but I have a particular project I want to do where I want this machine a little tighter. Decided I wanted to clean, lube and tighten this a bit before beginning the project.
The gib adjuster simply would not come out with table on. The slot for screw driver was pretty well whipped. So I yanked table off, and popped gib out to access the adjuster. Well good news, adjuster was not bottomed out. It was bent !
I had to sneak in with a cut off wheel and cut notches to pry on it assisting to get it unscrewed.
To give an idea, here in the saddle is where I slipped in with cutting wheel:
With that squared away I wanted to clean and adjust backlash on cross and long feed nuts. Whoever installed them never cut the nuts all the way through . Which defeats any of their respective adjusting screws. They need to be cut all the way through and a gap maintained between them to be able to adjust backlash toward zero.
One of my favorites though. Oil line to the nuts carrier. . . One in particular feeds lube to long feed threads. Line was hooked up, but no one drilled the nut to allow oil in . The oil line was going to a dead blind hole.
Note the circle tattoo on bronze just above my thumb, also circled in red. That should be a drilled hole, and lines up to the oil line port in carrier above that: