Okuma LB15 Series II LatheDescription:
Cleaned every part of this lathe, repainted all surfaces that were factory painted (in some cases after sandblasting), and repaired some sheet
Completely cleaned the electrical cabinet, and disassembled, checked and rebuilt the VFD, which is the regen type with grid synchronization.
Previously the machine didn't have leveling pads, so we made a set of ten from ductile iron plate. As mentioned, the door was disassembled, cleaned and rebuilt with a new polycarbonate window.
All cooling fans are new, and some circuits were rewired.
All tools for disassembling were made, the turret holder and sourced new bearings from Nachi (those that haven't been installed remain unopened in their boxes).
The machine lacked a turret bushing.
Spindle runout is nearly zero and the bearings are quiet.
The machine lacked a tailstock from the factory.
The chip conveyor was in poor condition, so it was scrapped and made a coolant tank from stainless steel and
PVC. It rolls on ball casters.
Relevant surfaces carefully machined on a huge manual horizontal milling machine and made a new gib from billet bronze
The remaining gibs are good, but the cross slide must be skimmed to match.
Modified the 70mm Kitagawa chuck cylinder and the draw tube that came with the LB15, and will be keeping these items.
We have a 65mm Kitagawa cylinder and related parts that can be provided with the LB15.
The main operating system, seller (Horton via HGR) said it worked, but the backup battery must be replaced, which is a
Ball screws are excellent and were probably replaced not long before we obtained the machine, as it appears,
was the x-axis servo motor.