Opel 1900 1973 Service Manual page 570

CAPILLARY T"BE
Figure 98.95 Evaporator and Expansion Valve
Assembly GT
valve from refrigerant lines, and tape closed open
ends of lines and inlet and outlet ports of expansion
valve.
Installation
If expansion valve or refrigerant lines have been ex-
posed to ,the atmosphere for any amount of time and
moisture may have entered the valve or the system,
flush the system and install new receiver-dehydrator
or valve as necessary.
Due to the possible adjustment difficulties involved
if the expansion valve is disassembled, disaisembly of
the valve is not recommended. The valve may be
cleaned by submerging it in a bath of trichlorethy-
lene, alcohol, or similar solvent. Dry by blowing iil-
valve. The filter screen at the inlet port may be re-
placed. Remove screen by threading a lo-32 NF
screw intp old filter screen. With a washer and a nut
on the screw arranged to work as a puller screw, hold
the body of the screw and turn the nut. Insert the
new filter screen into the inlet port and lightly tap
screen only enough to seat.
1. Install expansion valve
installation. Lubricate o-rings prior to installation
using No. 525 viscosity oil.
2. Install evaporator assembly and case attaching
s c r e w s .
3. Install blower motor assembly into case and se-
cure with attaching screws.
4. Install finger guard shields and fan housing case.
REFRIGERANT COMPONENTS ALL MODELS
using new o-rings during
5. Install resistor assembly.
6. Install evaporator assembly into car and install
mounting bracket. See Figure 9B-96.
Figure 98.96 Evaporator and Blower Assembly - GT
7. Untape the refrigerant lines and the inlet and
outlet pipes from the evaporator and install using
new o-rings on line fittings.
Figure 98-97 Refrigerant Hoses and Hose Clamps
Under Car - GT