Montero SR 4WD V6-3.5L SOHC (1997)
12. Turn the vacuum pump adaptor switch to the R-134a side to start the vacuum pump.
CAUTION: Do not operate the air conditioning compressor to carry out evacuation.
13. Evacuate to a vacuum reading of 100 kPa (29.5 in.Hg) or higher (takes approx. 10 minutes).
14. Turn the vacuum pump adaptor switch OFF and allow to stand it for 5 minutes.
CAUTION: Do not operate the compressor in the vacuum condition, as damage may occur.
15. Carry out a leak test. (Good if the negative pressure does not drop.)
CAUTION: If the negative pressure is lost, check for loose connections. Then, repeat the evacuation procedure from step 12. If the negative
pressure is still lost, add 1 lb of refrigerant and then use an R-134a compatible leak detector to check the system.
16. Turn the handle of the adaptor valve back all the way (valve closed), remove it from the gage manifold and install the bulk container.
17. Open the valve of the bulk container.
18. Turn the handle of the charge valve back (valve open) and tighten the handle of the adaptor valve (valve open) to charge the system with
refrigerant.
CAUTION: If the bulk container is inverted, liquid refrigerant may be drawn into the compressor, damaging it by hydraulic lock. Keep the bulk
container upright to ensure that refrigerant is charged in gas state.
19. If the refrigerant is not drawn in, turn the handle of the adaptor valve back all the way (valve closed).
20. Use a leak detector to check for gas leaks.
If a gas leak is detected, re-tighten the connections and then repeat the charging procedure from evacuation in step (12).
CAUTION: A leak detector designed for R-134a should be used.
