Subaru SVX 1992 Manual page 989

AUTOMATIC AIR CONDITIONING SYSTEM [W703] 4-7
R134a
0005
0000
OoOp~
Weight
scale
C4-1022
Fig. 32
6) Carefully attach the can tap to the refrigerant can by
following the can tap manufacturer's instructions .
7) Disconnect the center manifold hose from the vacuum
pump and connect the hose to the tap valve.
Fig. 33
8) If a 13 .6 kg (30 lb) container of refrigerant is used a
weight scale will be needed . This scale is to determine the
amount of refrigerant that is used .
Connect the center hose from the manifold to the valve.
Place the 13 .6 kg (30 lb) container on the scale, valve end
down .
Fig. 34
3. PURGE THE CENTER HOSE
1) Verify that all three hose connections are tight at the
manifold gauge set.
2) Open the valve on the R134a source .
Low-pressure gauge
(Compound pressure gauge)
High-pressure gauge
rl 1 .,
r, /
It
1
Close
Close
U
Purge
"' B4-694
Fig. 35
4. INITIAL CHARGING THROUGH THE HIGH SIDE
1) Connect a tachometer to the engine .
2) With the engine off, start charging by slowly opening
the high-pressure manifold valve.
The initial charge rate can be increased by immersing
the can in lukewarm [below 38°C (100°F)] water for a short
time .
17