HEATER, AIR CONDITIONER AND VENTILATION ± On-vehicle Service
55-10
CHARGING
1. With the handles turned back all the way (valve closed),
install the adaptor valve to the low-pressure side of the
gauge manifold.
2. Connect the charging hose (blue) to the adaptor valve.
3. Connect the quick joint (for low
-pressure) to the charging
hose (blue).
4. Connect the quick joint (for low
-pressure) to the low-
pressure service valve.
NOTE
The low-pressure service valve should be connected to
the suction hose.
Caution
(1) Use tools that are suited to R-134a.
(2) To install the quick joint, press section ªAº firmly
against the service valve until a click is heard.
When connecting, run your hand along the hose
while pressing to ensure that there are no bends
in the hose.
5. Close the high and low
-pressure valves of the gauge
manifold.
6. Install the vacuum pump adaptor to the vacuum pump.
7. Connect the vacuum pump plug to the vacuum pump
adaptor.
8. Connect the charging hose (yellow) to the R-134a
connection port of the vacuum pump adaptor.
9. Tighten the adaptor valve handle (valve open).
10. Open the low
-pressure valve of the gauge manifold.
11. Turn the power switch of the vacuum pump to the ON
position.
NOTE
Even if the vacuum pump power switch is turned ON,
the vacuum pump will not operate because of the power
supply connection in step (7).
Low-pressure
valve
High-pressure
valve
Gauge manifold
Adapter
valve
Charging hose
(yellow)
Charging hose
(blue)
R-12 con-
nection
port
Switch
R-134a
connection
port
Vacuum
pump
adaptor
Vacuum
pump
Power supply
plug
Switch
Quick
joint (for
low pres-
sure)
Low-pressure
service valve
Sleeve
A
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