The John Deere 314 was produced from 1979 to 1983. The 314 was equipped with a 14-horsepower Kohler one-cylinder diesel engine. The transmission on the 314 is located at the rear of the mower, and is accessed via a drain tube beneath the transmission housing, and a fill tube. The 314 was fitted with a 38-inch or optional 46-inch mower deck. The 314 was available with a 50-inch rotary mower deck and had a hydrostatic transmission with infinite forward and reverse gears. The transmission requires 5 quarts of fluid to fill completely.
Kneel at the rear of the mower. Locate the transmission oil fill tube just below the fuel tank. Remove the cap from the fill tube.
Fill a metal squirt can with John Deere Hydrostatic transmission fluid.
Insert the flexible spout from the oil squirt can into the oil fill tube. Pump the trigger on the squirt can to add transmission fluid. Continually check the transmission sight tube to make sure you do not overfill the transmission.
Replace the transmission fill tube cap when you are finished adding fluid.