MY-AC01 Cooling System Vacuum Radiator Kit Refill & Purge Set Universal Tools | Sunbright
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switch. (see figure 2) •Allow air pressure to reach a vacuum level approximately between 20~25 inHG (50~60 cm hg) of mercury. Please turn off the switch and take off the vacuum pump. (figure 3) •Connect coolant hose to cooling system adaptor and then turn on the switch. The coolant hose should have filled with coolant and put in the container which filled with coolant. After minutes, the coolant will flow to the radiator via coolant hose until the needle points zero. (see figure 4) When you finish all the work, check if the radiator is fully filled with coolant or not. If it isn’t, please fill the coolant yourself until the radiator is full of coolant.