The COM had a convertor on the engine, you have a hyd clutch spool the "clutch pedal" works so you can dump oil to the convertor for shifting the gear transmission, there is also another hyd spool in the control valve that allows you to "Lock Out/Up"the convertor, like on todays over drive mode. COM gives you up to 100% more pull power when in Case-O-Matic drive verses Direct drive, and these can be selected any time you are moving. We seen when selling them New the person Loved it or wanted nothing to do with it and bought the dry clutch version, we stocked both, with dual range transmission and COM you had available 16 speeds fwd 4 reverse
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Today's Featured Article - Engine Basics: Spark Plug Cleaning - by Staff. Cleaning procedures: Brush or blow dirt from around the spark plug base. Remove the plug with a correctly fitted wrench. Examine the porcelain insulator and points. If the insulator appears to be melted or blistered, cracked or broken, and the points seem unduly burned it is evident that the plug is operating too hot and it should be replaced with a colder plug. If the plug is fouled excessively with carbon it apparently is operating too cold and it should be replac
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