Toyota Camry Manual page 6

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AIR CONDITIONING SYSTEM

PRECAUTIONS WHEN CHARGING

DO NOT OPERATE COMPRESSOR WITHOUT

ENOUGH REFRIGERANT IN REFRIGERANT

If there is not enough refrigerant in the refrigerant

system oil lubrication will be insufficient and compres–

sor burnout may occur, so take care to avoid this.

DO NOT OPEN HIGH PRESSURE MANIFOLD VALVE

WHILST COMPRESSOR IS OPERATING

If the high pressure valve is opened, refrigerant flows

in the reverse direction and could cause the charging

cylinder to rupture, so open and close the low pres–

sure valve only.

BE CAREFUL NOT TO OVERCHARGE WITH RE–

FRIGERANT IN SYSTEM

If refrigerant is overcharged, it causes problems such

as insufficient cooling, poor fuel economy, engine

overheating etc.

ELECTRICAL PARTS

Before removing and inspecting the electrical parts,

set the ignition switch to the LOCK position and

disconnect the negative (–) terminal cable from bat–

CAUTION: Work must be started after 90 seconds from

the time the Ignition switch is turned to the "LOCK"

position and the negative (–) terminal cable is discon–

nected from the battery.

GENERAL DESCRIPTION

Be sure to connect both the high and low pressure

quick–connectors onto the A/C system when eva–

cuating. If only one side is connected, the system

would be open to atmosphere through the other

connector, making it impossible to maintain

Be sure to turn off the manifold gauge valve imme–

diately after evacuating the system. Then you may

switch off the vacuum pump.