Initial Inspection

ON-VEHICLE INSPECTION

1. INSPECT REFRIGERANT VOLUME
a. Observe the sight glass on the cooler refrigerant liquid pipe A.

Test conditions:
- Running engine at 1,500 rpm
- Blower speed control switch at "HI"
- A/C switch ON
- Temperature control dial at "MAX. COOL"
- Fully open the doors

2. INSPECT REFRIGERANT PRESSURE WITH MANIFOLD GAUGE SET

a. This is a method in witch the trouble is located by using a manifold gauge set. Read the manifold gauge pressure when the these conditions are established.

Test conditions:
- Temperature at the air inlet with the switch set at RECIRC is 30 - 35 °C (86 - 95 °F)
- Engine running at 1,500 rpm
- Blower speed control switch at "HI" position
- Temperature control dial at "COOL" position
- A/C switch ON
- Fully open doors

1. Normally functioning refrigeration system.

Gauge reading
Low pressure side: 0.15 - 0.25 MPa (1.5 - 2.5 kgf/sq.cm)
High pressure side: 1.37 - 1.57 MPa (14 - 16 kgf/sq.cm)