Lagun ftv2 head rebuild and other general ?'s

[ashford]

just purchased a big mill after about 10 years of keeping an eye out for one. the machine was heavily greased and put into storage so i wasn't able to operate or really check things out with a gallon of grease on everything. i got it home and ungreased the majority of it ways are a heavily worn but not garbage about .003 difference in table play from center to end.

got a vfd hooked upto it and makes horrible noises. I pull the head apart and the motor stationary sleeved is cracked and welded-poorly.
there is also about .002 of runout in the r8 bore, same runout on od of spindle, i was told bearings.

so far i have gotten $750 worth of bearings and belts from h&w machine and hot tanked the parts above the quill(screwed up the paint).
i have no service manual and probably be needing some specs and such.

only thing i can think of off the top of my head is torque values for bearing nuts and about how long is the pipe cleaner supposed to stick out of the oiler.

 

[pontiac428]

The FTV-1,2,3 manual is available as a reprint from Ozark Tools. It does not cover operation of the machine, just the maintenance info. Lagun beefed up a lot of components compared to the Bridgeport, so I would not attempt to do the bearing replacement without a manual. I'll take a look at mine this weekend to see if it has the spindle bearing setup and preload specs (IIRC it does). I recommend buying a copy. In the future, it will not become easier to find, the opposite is true. You need to have the mechanical drawings of the head at bare minimum.

 

[akjeff]

As pontiac said, get a manual from Ozark(or Lagun) if for nothing else than the mechanical drawings. There's also a procedure in there for removing the quill. If you need tech advice, you can call Lagun, and ask for Carmen. Very knowledgable and helpful.

 

[ashford]

H&W machine was kind enough to give me a pdf parts manual with my order of around $900. since then its been a headache(pun intended)

belt sheave was cracked and poorly welded so it had about 1/8 runout, bought a 9x2 cast disk from mcmaster carr and made my own. never want to cut that much cast iron again in a little lathe. my halfnut gave out almost right away so all of my x cutting was manual. the only problem i had was when i was cutting the bore i wanted to stop about 0-.001 under size and hone the rest of the way, being the grizly machine it is i was at .002 under and making 2 .0005cuts took nothing off the next .0005 took .003 off. so i had to use sleeve retaining coumpound on the sheave to shaft.

i have the head back together, need to pull the motor and change bearings and the quill guard but i made first chips on my birthday.

next things to do are make an attempt to regrind the r8 taper and pull the bed and saddle off for cleaning.

 

[akjeff]

Nice job on the sheave! Are you going to grind the R8 yourself, or send it out? I got lucky with mine. The head runs nice and quiet, and they( A&D Machine Tool Rebuilders ) measured the R8 taper runout at 3 tenths. Should get loaded on the barge in Seattle and on it's way to Alaska next week!