Heating and Air Conditioning: Service Precautions
PREPARATION PRIOR TO INSTALLATIONA. INSPECTION AND ADJUSTMENT OF VEHICLE
Before installing air conditioning,check and adjust following items.
1) Engine ignition timing.
2) Engine cooling system.
3) Battery electrolyte and charging system.
4) Passenger compartement sealing.
5) Fuel system.
6) General vehicle conditions.
B. PREPARATION OF AIR CONDITIONING COMPONENTS
When unpacking parts kit,arrange unpacked parts in the order of installation.
At this time,you have to make sure the kit has no missing or defective parts.
And,when installing air conditioner,you have to use covers for protection of fender and seat.
PRECAUTION FOR SERVICING
1) Battery negative terminal should be disconnected.
2) Engine-installed air conditioning components should be tightened by specified torque using bolts supplied in the kit.
3) Air conditioning lines and wire harnesses should,when installed,be routed correctly so as not to interfere with peripheral parts.
4) Hoses and tubes should be connected with each other respectively after applying two to three drops of refrigerant to seats of flared nuts.
5) Line fittings should be tightend or loosened using two wrenches so that they are supported evenly during such tightening or loosening.
6) Flared nuts should be tightend by specified torque.
7) Until it becomes possible to connect each component into position,blind plugs of attaching portions should not be removed.
NOTE: Remove plugs from compressor carefully to allow refrigerant to escape slowly. This is necessary because compressor is shipped out from factory with a slight charge of refrigerant to prervent its seals from corroding.
8) When handling refrigerant HFC-134a (R-134a), you should always wear safety goggles and also use care that it will not get on your skin.
9) Refrigerant HFC-134a (R-134a) can should be kept at about 40°C (100°F) by putting it in hot water.
INSTALLATION
When installing air conditioning,refer to instruction manual which is packed with A/C parts.