- Power and phase
- The 232-D's motor is built onto the arbor and tilts with it, 2 HP at 3,600 RPM as standard and 3 HP as an option by the 1970s. The sheets we read don't say single or three-phase, so read the motor plate in the photos. Many industrial Olivers are three-phase, and a three-phase one needs a VFD or a rotary converter on house power.
- Motor and bearings
- Because the motor is the arbor, you can't swap it for a stock motor the way you can on a belt-drive saw. Ask the seller to film a start from cold and a minute of running. It should come up to speed cleanly and run smoothly, and a 1970s saw may have a mechanical foot brake to test too.
- Runout
- The arbor is 1 in where the blade mounts and 1-3/4 in in its bearings. Ask the seller to spin the blade by hand with the power off and watch the rim. A dial indicator on the flange is the real test, and Oliver parts still exist through Straitoplane.
- Table and rust
- The table is 34-1/2 x 33-1/4 in of cast iron with an extension, on a one-piece base with a three-point floor bearing. Get a raking-light photo of the top. Rust cleans up, but a crack is serious on a machine this size.
- Fence, guards and gauges
- Oliver shipped a plain ripping fence, a cross-cut gauge and an automatic aluminum guard with anti-kickback dogs and a steel splitter, plus Type J and Type H fences as options. Check the photos for the fence and guard, since Oliver parts are specialist items.
- Trunnions and adjustments
- Motor and arbor tilt together to 45 degrees on a handwheel and screw. Ask for a video of the blade tilting and rising. Both should move smoothly without binding.
- Blades and knives
- It takes 12 in blades on a 1 in arbor as standard, and 14 in blades with the G-232A guard. Blades with a 1 in bore are a stock industrial size. Wide dado heads need Oliver's dado sleeve.
- Dating it
- Oliver used one serial sequence for every machine from 1907, and VintageMachinery.org has the table, where 50,000 is about November 1940, 74,000 about February 1950 and 202,000 about May 1972. The 232 is the 1930s version and the 232-D the one you'll usually see.
- Moving it
- Oliver gave 1,240 lb crated in 1950. That's a job for a forklift, a drop-deck trailer or a rigger, and it's near the limit of some freight liftgates. Take the extension, fence and guard off first.
- Safety upgrades
- Check that the guard, splitter and anti-kickback dogs are there, and that the starter stops the saw when power is cut. A magnetic starter with no-voltage release is the right control for a machine this size.
Check the listing photos against these lists, and ask the seller about anything you can’t see. A missing fence, guard or motor should come off the price.