7B
Dual Pressure Switch On-Vehicle Inspection (M13A Model)
1) Check dual pressure switch (1) for continuity at normal temperature (approx. 25 °C (77 °F)) when A/C system has a proper charge of refrigerant and A/C system (compressor) is under operation. In each of these cases, switch should show proper continuity.
2) Check switch for continuity at specified pressure as shown.
High and low pressure switch specification
A: Approximately 195 KPa (1.95 kg/cm², 27.5 psi)
B: Approximately 3140 KPa (31.4 kg/cm², 446.5 psi)
C: Approximately 225 KPa (2.25 kg/cm², 32.0 psi)
D: Approximately 2550 KPa (25.5 kg/cm², 362.5 psi)
Tightening torque
Dual pressure switch ( a ): 10 N·m ( 1.0 kg-m, 7.0 lb-ft)