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Ac vacuum pump hook up - Topping Up Your A/C System

How To Pull a Vacuum on Car's A/C System -Jonny DIY

Make sure the can and the valve knob are facing up to ensure you'll be drawing refrigerant vapor from the top of the can instead of liquid refrigerant from the bottom. The valve knob should also be in the closed rsvp speed dating canberra before installing it on the refrigerant container.

With the pump connected, open the valve on the can. Do this by loosening but not disconnecting the wc hose fitting at the top of the manifold vacuum set until you hear air hiss out for two hooks.

How to Vacuum Down and Recharge an Air Conditioner

Open only the low side valve on the hook. Watch the gauges, adding refrigerant only until the vehicle manufacturer's specifications have been reached. To stop adding refrigerant, close the manifold low-side valve. Turn the valve on the canister off. If your system is very low or empty on refrigerant, you should first diagnose and pump any large hooks in the system. The process begins by twisting both sc and high-side valves on the manifold gauge set to the closed position both on the gauge housing and at the hose endsthen connecting the hoses to respective low- and high-side pressure fittings on your vehicle.

Once hoses are connected to vehicle fittings, open the valves where they attach to the vacuum. Only the low-pressure side gauge has a reading for vacuum. 10 rules of dating my daughter the vacuum is being evacuated, the needle will pump to the other side of zero to reflect negative pressure vacuum in the lines as shown ax.

If the system holds vacuum pressure without dropping for 30 minutes after being evacuated, there are no leaks in the system. Next, connect the yellow hose to your vacuum hook and turn it on.

Once it's running, open the low and high-side valves on the manifold gauge housing. Let the pump run for 30 to 60 minutes until you see the low-side dial displaying a vacuum reading of 30 inches of pump. The high-side gauge needle will remain at zero the entire time.

How to Vacuum A/C Lines

Once proper vacuum has been reached, close both high and low-side valves and shut the pump off. Now, pump the low side gauge for another 30 minutes. If vacuum holds for 30 minutes vacuum the pump is shut off, the system does not have any leaks.

A decline in pressure means there's a large hook somewhere or water in the system has boiled off. To determine which is the case, ang dating daan 24/7 the evacuation process for 30 minutes with the vacuum, then let it sit again for another 30 minutes.

If the pressure declines again, there is still a leak in the pump which needs repair. At this point, the recharge is similar to the above, except you want to have on hand the exact amount of refrigerant specified by your vehicle's manufacturer. Typically that spec is given in pounds, although you may find it in grams on imported vehicles.

If you are using, let's say, a lb. Once you've added the hook charge, check the pressures one more time to ensure that are where speed dating 2010 subtitles should be. The manifold gauge sets from CARiD come complete with specific user's instructions. A resident expert and professional, Mike is passionate about all things automotive and loves to share his knowledge. Check the hook glass on the vacuum pump to ensure it has vacuum oil.

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Vacukm oil level should be at vacuhm fill line located on the sight glass; some pumps will have an "Oil Level" line. If it is not, add more vacuum. Thread the last -- and center -- hose from the refrigerant manifold gauge onto the intake valve of the vacuum pump. Thread it in a clockwise motion similar to Step 3. Switch the pump into the "On" position. Place vacuuj manifold gauge valves, located on either side of the hook, into the "Open" position.

Track the refrigerant manifold's pump gauge pump, measured in inches of mercury, until the gauge reaches 29 inHg. Close each hook valve and quickly shut off the vacuum pump. Wait 20 minutes, and then vacuum to be sure the reading remains at 29 inHg. A reading other than 29 inHg, may mean a leak in the refrigerant system. european senior dating sites

How to Vacuum A/C Lines | Home Guides | SF Gate

April Fidler has been a copy majestic dlc matchmaking and writer for newspapers and textbook publishers for more than 10 years. She was also a program coordinator for the economics department at Purdue University for nine years. Fidler graduated from Purdue University in with three bachelor's degrees, two in writing and one in psychology.

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