4 Runner 2WD L4-2693cc 2.7L DOHC MFI (1997)
1. CONNECT QUICK DISCONNECT ADAPTERS TO CHARGING HOSES
2. REMOVE CAPS FROM SERVICE VALVES ON REFRIGERANT LINES
3. SET ON MANIFOLD GAUGE SET
a. Close both hand valves of manifold gauge set.
b. Connect the quick disconnect adapters to the service valves.
4. EVACUATE AIR FROM REFRIGERATION SYSTEM
a. Connect the vacuum pump adapter to the vacuum pump.
Manifold Gauge Set / Low & High Pressure Service Valves
b. Connect the center hose of the manifold gauge set to the vacuum pump adapter.
c. Open both the high and low hand valves and run the vacuum pump.
d. After 10 minutes or more, check that the low pressure gauge indicates 750 mmHg (30 in.Hg) or more.
HINT: If the reading is not 750 mmHg (30 in.Hg) or more, close both hand valves of manifold gauge set and stop the vacuum pump.
Check the system for leaks and repair as necessary.
e. Close both the high and low hand valves and stop the vacuum pump.
