Throttle Valve Control Pressure Regulator
Whenever this regulator is replaced, it must be adjusted to correct control pressure value at idle speed position. Proceed as follows: With warm up regulator hot, connect manometer tool P378 as described under "Pressure Testing". Set three-way valve lever to control pressure checking position. Turn pressure regulator in elongated slots until control pressure of 2.95 to 3.05 bar is reached. Tighten pressure regulator and check control pressure under part and full load.