biggreen1 wrote:My boiler is still being built, but I picked up the install manual from AA. Some of the current manual they are giving out was written around 1949. One page had that date on the corner. I'm wondering if the bearings, gearboxes and other parts are still the same as they describe?
The 130s have changed somewhat, not too sure about all the details on the 260s. The following applies to the 130s:
The support for the auger has changed a little, early models had single row bearings, newer models now have double row for more support. The gear boxes are still made by Ohio Gear but the newer models are a square top Vs a rounded top, same gear ratios and form factor. The early models used a frame 56 motor with 5/8" keyed shafts, the newer units use a Frame 48 motor with 1/2" non keyed shaft. AA makes an adapter plate for the frame 48 motors to fit the older models since they no longer stock the frame 56 motors. The pressure vessel is now made purpose specific (water or steam) Vs the old way of building it with the features of both types of systems. Basically with a few refinements the units are still the same as in the early days. It amazes me every time I find an old one just how tough these boilers are!