For info:
YEAR - 1992 SPECIFICATIONS: CAPACITY.............................: 12.5" SW x 24.8" CC GRINDING WHEEL.......................: 20" OD x 3"W x 8" ID WHEEL SPEED..........................: 1685 RPM WORKHEAD SPEEDS......................: 15-360 RPM EQUIPPED WITH: AUTO OIL TEMPERATURE REGULATORS HOFFMAN FILTRATION UNIT TYPE ASF80-4 APPROACH ANGLE SOFTWARE GAP STYLE SWIVEL MODIFICATION CONSTANT SURFACE SPEED LOAD METER MANUAL OVERRIDE "DOWN SPEED" MARPOSS-39 AUTOMATIC IN-PROCESS GUAGING SYSTEM ALL MANUALS FOR TOYODA AND HOFFMAN FILTRATION UNIT