Pressure Switch A Assy, (9367726028)
If Pressure is 4.2MP or more, the circuit will turn Off. When it becomes 3.2 MP or less, the circuit become back to normal operation(On).
Pressure Switch B Assy, (9367727025)
If Pressure is 3.7MP or more, circuit will turn Off. When it becomes 2.9 MP or less, circuit become back to normal operation(On).