Suzuki RA410, Manual

Page: 70 / 761

EXPANSION VALVE
Refer to “Troubleshooting Procedure Using Manifold Gauge Set”
earlier in this Section,
1
1. Expansion valve
DUAL PRESSURE SWITCH
INSPECTION
1) Check dual pressure switch (1) for continuity at normal temper-
ature (approx. 25 C (77 F)) when A/C system has a proper
charge of refrigerant and when A/C system (compressor) is un-
der operation. In each of these cases, switch should show prop-
er continuity.
1
2) Check switch for continuity at specified pressure as shown.
A: Approx 200 KPa (2.0 kg/cm
2
)
B: Approx 320 KPa (32 kg/cm
2
)
C: Approx 230 KPa (2.3 kg/cm
2
)
D: Approx 2800 KPa (28 kg/cm
2
)
Tightening torque for dual pressure switch
11 N·m (1.1 kg-m, 8.0 lb-ft)
Continuity
Noncontinuity
Pressure
A B
C D
A/C SWITCH
REMOVAL AND INSTALLATION
Refer to “HEATER CONTROL LEVER ASSEMBLY” in Section 1A.
INSPECTION
Press A/C Switch button and check if there is continuity between
terminals “A” and “B”.
With battery voltage (+) connected to terminal “C” and (–) to ter-
minal “A”, press A/C Switch button and check if indicator lamp
lights.
1. Blower fan and A/C switch
1B-18 AIR CONDITIONING (OPTIONAL)