Rockwell RC33 13" planer
Eye protection required. Hearing protection strongly recommended
This YouTube video details the disassembly and re-assembly of the same model, and has been a useful reference.
The chain that drives the height of the planar runs on 10 tooth sprockets. Each full rotation moves the head by 4mm, or 0.4mm (0.016") per tooth.
Belts are "551 Gates Truflex 1280RT", part number CGC 81.083.804/0002-71. Measured width is 3/8", height is 1/4". Current Truflex catalogue states the 3L size belts should be 3/8" wide by 7/32" (.218") tall. Measured outer circumference is 27 7/8". Searching the part numbers has not yielded results I'd trust, probably best to go through a distributor that can cross-reference all required info.
Gates belt catalogue saved on Google Drive
Training is not required at this time, but use is restricted to members only.