YSTOOL Hand Held Vacuum and Pressure Pump Brake Clutch Fluid Bleeder Tool Kit Oil Change Power Steering Fluid Bleeding Set with Pressure Gauge Jar Adapters for Auto Car Truck Motorcycle Use

YSTOOL multi-functional vacuum pressure pump kit can be widely used to test a variety of essential vehicle settings and operations, such as Computerized Engine Control Devices, Ignition Control Devices, Air Condition & Heating Controls, Cruise Control Systems, Brake Systems etc., especially work for changing brake clutch fluid and power steering fluid. Use the hand pump to form negative pressure in the brake system, sucks out waste oil and air, and guide the new oil to fill all the system. The included 3 differently sized black L type and 9 straight cone rubber adapters, can connect with the brake bleeder valve on any vehicles that use standard brake bleed valves, or any other vacuum system which can work with these adapters properly. Use the closest sized one to ensure a tight fit. And bleed from master cylinder to wheel cylinder and caliper. There is a universal cup adapter packed in the case, can use as a vacuum sealer to match with your reusable vacuum food storage bags. The hand pump adopts aluminium cylinder with a -20 to 0inHg vacuum & 0 to 40psi pressure gauge. Move the collar on the cylinder forward and pump for vacuum, move rearward and pump for inflating pressure, pump and then move the collar for releasing pressure. The 2 20"L, 2 4"L and 1 3"L transport hoses are transparent, help to observe if the waste oil is all pumped out, and when you see the clear new brake oil is sucked out in the hose without any air bubble, then done. In the hand held vacuum pump tester set, there are two 120ml / 4.5oz storage jar, which have liquid storage cover and liquid transfer cover with O-rings for sealing. Please note, there is a connected direction request for the liquid transfer cover, connect the side marked "TO PUMP" to hand pump by short hose, if not, the waste oil may be sucked into the pump and destroy it. Do not invert the jar while using too. If after pumping several times and you can not pump any more, but the index keeps on certain readings without dropping, maybe it is because of a blocked brake bleeder valve. You need to clean the brake bleeder valve first, and then do not forget to suck out the air if you do not change the waste oil this time. Also we supply 1 year warranty, please feel free to purchase. Please contact us by Amazon message system if there is any question, we will reply in 24 hours.