Using the dipstick, check the oil level. For example, from an engine that holds 4 3/4 quarts whose dipstick reads one quart low, you could expect to evacuate 3 3/4 quarts of oil. The totalizing meter on the EVAC 7000 is very accurate. You can be confident that you have evacuated all the oil when the display shows 3.75 quarts. 

Evacuating The Oil

 Using a warm engine, select the largest wand that will fit into the dipstick tube. Lay the selected wand next to the dipstick and with your thumb and forefinger add approximately 1 1/2 inches to the wand. This extra 1 1/2 inch in most cases will allow you to evacuate all or most of the oil in the pan. 

 Next, insert the wand into the dipstick tube, stopping at the predetermined point. Don't try to "feel" the bottom of the pan with the wand. The wand should be treated with respect. A gentle twisting motion may be necessary to insert the wand to the proper depth. Press the cycle start push button and turn the mode selector switch to suction. You should now look at the sight glass. Within seconds, you should see a stream of oil. When few or no oil bubbles are visible, you are assured the wand is in the oil and evacuation process has begun. Next, look at the vacuum gauge. It should be climbing.  As it reaches between 20-29 inches of vacuum, your machine is working at peak efficiency. You can now proceed with the remainder of the service, i.e, filter change and chassis lubrication, etc. Your initial  wand position will not necessarily accomplish evacuation of all the oil. You will know when this occurs by observing loss of vacuum on the gauge and/or bubbles in the sight glass, and by observing the meter level. As in our previous example, if you experience loss of vacuum and you have only evacuated three quarts of oil, you should gently push the wand into the dipstick tube. Taking note of increasing vacuum and meter reading indicate that the expected quantity of oil has been evacuated. Next move the toggle switch to OFF and remove the wand using a shop towel and place it into the holder. Then move the toggle switch to DISCHARGE to pump oil into the waste oil tank and to ready the machine for the next service. You can now refill the engine with new oil and complete the service. Photos 4 and 5 show the control panel and electronic control system. This system converts 120V to 24V power for the actuator valves.