Look for tears, cracks, and other damage. Unmodified plugs and matching outlets will reduce risk of electric shock. To prevent accidents, unplug the Power Cord after use. Wear ANSI-approved safety goggles during setup and/or use. Most lubricating oils are paraffinic based oils that are processed to create the best product for the application. Review Harbor Freight 3 CFM Two Stage Vacuum Pump Pittsburgh Item 60805. Mineral oils and other vacuum pump fluids, Oil seems such a simple product until you do some research and find out how many different types of oil there are. In vacuum pumps the functions of the oil are: Oils for rotary vacuum pumps have low vapor pressures, in the range of 10-4 Torr at room temperature. 2 By 6 Duplex & Series, 1 By 6, and 1 By 12 Parallel, Oil Free Dry Vacuum Pumps Save This Manual Keep this manual for the safety warnings and precautions, assembly, operating, inspection, maintenance, and cleaning procedures. I had no problem evacuating the system, it pulled it down the unit I tested it on relatively quickly. If you are unsure which way you need to turn your valves to open them, check the manual that came with your gauges or vacuum. This oil is a fairly recent addition to the vacuum pump industry, and used mainly on small laboratory sized two stage pumps. The SAE 30 viscosity vacuum pump oil is also used in smaller rotary vane design pumps driven by a vee belt drive from the motor. HVAC How-To, Tutorials, Reviews, Information and More. Copyright 2020 by Harbor Freight Tools. If its not able to hold for that long, you likely have a leak and may need to replace components on your vacuum pump. It could also be used on a vehicles cooling system but I only used it with a home air conditioning unit. Your email address will not be published. It is quiet now and running which is great. use the correct power tool for your application. Rotary vane vacuum pumps are available as direct drive (usually 1800 rpm) and vee belt drive (between 400 and 500 rpm) versions. The owner of this website, hvachowto.com, is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking hvachowto.com to Amazon properties. If unreadable or missing, contact Harbor Freight Tools for a replacement. TO PREVENT SERIOUS INJURY AND DEATH FROM EXPLOSION: Service of air conditioning systems must be done only by trained and experienced technicians to avoid overfilling.Technicians opening refrigeration circuits in automotive air conditioning systems MUST be certified in refrigerant recovery and recycling procedures in compliance with section 609 of the Clean Air Act Amendments of 1990. Turn off the tool, and unplug it from its electrical outlet before leaving. there are better units although more costly. Specialists in Vacuum Furnace Technology - High Quality Vacuum Furnace Manufacturer, Copyright 2016 VAC AERO - Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards, and warrants to the original purchaser that this product is free from defects in materials and workmanship for the period of 90 days from the date of purchase. I was slightly involved in the project to develop hydro-treated oils for vacuum pump use that had a higher temperature rating and improved chemical resistance. It is used to alert you to potential personal injury hazards. They can also be used for cyclic duty, to evacuate a loadlock for example, where the pump evacuates a chamber from atmosphere to vacuum every few minutes.The vacuum process can also vary, from clean air pumping to hazardous gas, wet vapor pumping and dirty/dusty atmospheres. Model 140-5, Two Stage Rotary Vane Vacuum Pumps Parts List When using more than one extension cord to make up the total length, make sure each cord contains at least the minimum wire size required. FoodSaver Vacuum Sealing System Owner's Manual, FoodSaver The 1 Vacuum Sealing System Owner's Manual, ProOne Under Counter Inline Conversion Kit Instruction Manual, ZENEC ZE-RVC45DT REARVIEW CAMERA Instructions, Peak Tech 5306 PH/EC/Temp-Meter User Manual, PORTUGAL M1805 motorline PROFESSIONAL User Manual, electriq IQOOL-SMART12HP WALL MOUNTED AIR CONDITIONER WITH HEAT PUMP User Manual, Panasonic Corded Cordless Phone User Guide, GE Appliances GDF550PGR Front Control Dishwasher Installation Guide. These are called dry pumps and are the subject of another discussion. Spare parts lists are usually included or can be found in the back of the product catalogs. Protect the extension cords from sharp objects, excessive heat, and damp or wet areas. (Carbon brushes or bearings, for example.). Since then dry pumps (no fluid in the pumping volume) have been designed and perfected, but inert fluids are still used to lubricate gears and bearings that are outside the vacuum envelope of the pump. In the world of mechanical oil sealed rotary vacuum pumps there is a need for a variety of oils and fluids to suit the specific type of pump, its duty and the process it is used on.This discussion covers high vacuum pumps only, such as are used in the heat treating and vacuum furnace industry. The brand names for these inert fluids are Krytox and Fomblin. There are also filter elements available that will catch the solids, either a pleated style element for fine solids, or a wetted metal mesh element for high flow applications. "This is most accurate site to learn from. Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury. Service of air conditioning systems must be done only by a trained and experienced technicianto avoid overfilling. The double distilled oils available at the time had a shorter life when operating at a higher temperature. Set the vehicles parking brake, block the tires, and set the vehicles transmission to neutral or park. Remember that filters will reduce the effective pumping speed and they also do need to be maintained regularly. If the amount of condensed vapor contamination is relatively low, opening the gas ballast valve will allow water vapor to be passed through the pump without condensing. This oil has a paler straw color due to the lower sulphur content. Attach an AC refrigerant recovery system and drain the refrigerant. Causes When Mini Split Not Blowing Cold Air, 9 Tips and Tricks for DIY Mini Split Installations, Ductless Mini Split Buyer Frequently Asked Questions FAQ, How To Recharge a Window Air Conditioner Unit, Overview of KWIK-E-VAC Line Set Flushing Kit and How To Use, Quietest Window Mounted Air Conditioners 2022, Best DIY Mini Split Heat Pumps that Cools and Heats. Before operating the Vacuum Pump, check the oil level as explained under Tool Set Up on page 7. To prevent explosion, serious injury, and death: Visit our website at: http://www.harborfreight.comEmail our technical support at: [emailprotected]. Inspect the sealing O-Ring each time the Oil Fill Plug is removed. After reaching 26 to 28 in/hg vacuum, stop and disconnect the recovery system. Allow the Pump to operate for approximately 10 minutes to thoroughly remove all moisture and gas from the system. It can either be a fire hazard in the case of high oxygen flows or be chemically attacked in the case of many semiconductor type processes. If you are trying to start the pump in cold weather, open the intake ports until the pump reaches normal running speed. If abnormal noise or vibration occurs, have the problem corrected before further use. As always be sure to read the reviews on forums or elsewhere to be sure a unit is a good fit for you. Do not expose power tools to rain or wet conditions. TO PREVENT ELECTRIC SHOCK AND DEATH FROM INCORRECT GROUNDING WIRE CONNECTION:check with a qualified electrician if you are in doubt as to whether the outlet is properly grounded. As a development of the semiconductor industry (computer chips) where many hazardous, corrosive and pyrophoric gases are used vacuum pumps have been developed that have no lubricant at all in the pumping chamber areas of the pump. These vacuum pumps have an ultimate vacuum, sometimes called blank off vacuum, of 0.010 Torr (10 microns, 1 x 10-2 Torr or 0.0133 mbar). When unpacking, make sure that the product is intact and undamaged. We provide instruction manuals when we ship our products. Often this is water, which has a vapor pressure of about 18 Torr at ambient temperature. The plug must be connected to a properly grounded outlet. The requirements for rotary pump oils are: Paraffinic base mineral oils are suitable for the majority of vacuum pump applications in industry and science. Shipping costs to and from the factory are the customers responsibility. Internal damage or wear. General power tool Safety WarningsRead all safety warnings and instructions.Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.Save all warnings and instructions for future reference.The term power tool in the warnings refers to your mains-operated (corded) power tool. It could be used in a professional setting or as a backup although there are better units although more costly. Cold or cool oil will have a lower vapor pressure and allow the vacuum to create a lower pressure. When vacuum processes include high concentrations of oxygen or other hazardous gases or gas mixtures a hydrocarbon based pump fluid becomes a problem. All these factors need to be taken into consideration in case the duty or process doesnt suit the manufacturers standard oil or requires accessories to cope with the contaminants being pumped. To return a product please call us with some basic information and we will provide you with an RGA number which will be used to track your equipment through our repair process. In some applications, where the vacuum pump may be colder than room temperature, there are SAE 10 oils available. This oil has a straw color. wikiHow's Content Management Team carefully monitors the work from our editorial staff to ensure that each article is backed by trusted research and meets our high quality standards. never remove the grounding prong from the plug. Pulling a vacuum is a common part of air conditioning repairs. wikiHow is where trusted research and expert knowledge come together. Do not use any adapter plugs with grounded power tools. Keep cord away from heat, oil, sharp edges or moving parts. Replace the Oil Fill Plug and tighten securely to prevent oil from escaping under pressure during use. WARNING marking concerning Risk of Eye Injury. Do not use near combustibles and allow the unit to cool down completely after using, and/or before moving or storage. What you may not see, because the oil circulates through the bearings and then to the interior of the pump, is wear and tear on the pump bearings. Do not service air conditioning systems improperly. As appropriate, attach the R-12, R-22, or R-134A manifold to the AC drain port of the vehicle/appliance. Use of a GFCI reduces the risk of electric shock. Technicians opening refrigeration circuits in automotive air conditioning systems MUST be certified in refrigerant recovery and recycling procedures in compliance with section 609 of the Clean Air Act Amendments of 1990. Cylinders containing different gases may be processed on the same filling system so there is a chance that oxygen gas may enter the vacuum pump on the system. Do not leave the tool unattended when it is plugged into an electrical outlet. power tool plugs must match the outlet. When operating a power tool outdoors, use an extension cord suitable for outdoor use. This article has been viewed 194,158 times. Copyright 1995-2022 eBay Inc. All Rights Reserved. Do not operate the vehicles engine or service air conditioner in enclosed or poorly ventilated areas. If the contaminant is dust or powder from the process chamber it will mix with the oil and then cause mechanical wear in the bearings and and on any close fitting metal surfaces that have an oil film between them. Record products Serial number Here:Note: If the product has no serial number, record the month and year of purchase instead.Note: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. Make sure the gauges and gauge hoses are connected tightly. The vacuum will build for approximately 2 minutes before reaching full power. Later, when the semiconductor industry was in its infancy (1980s) most gas cylinder filling companies changed to using completely inert (inflammable) vacuum pump fluids called perfluoropolyethers (PFPE). Turn the vehicle/appliance and AC system OFF. Home PITTSBURGH PITTSBURGH 2.5 CFM Vacuum Pump Owners Manual, 2.5 CFMVacuum PumpOwners Manual & Safety Instructions. We will return repaired products at our expense, but if we determine there is no defect, or that the defect resulted from causes not within the scope of our warranty, then you must bear the cost of returning the product.This warranty gives you specific legal rights and you may also have other rights which vary from state to state. The warnings, precautions, and instructions discussed in this instruction manual cannot cover all possible conditions and situations that may occur. For our dry pump line we offer an advance exchange service which results in minimum downtime and the opportunity to have these products repaired or refurbished at the factory if necessary. Processing the base oil through a single distillation reduces the vapor pressure of the oil so that it is suitable for single stage oil sealed vacuum pumps. If the process is dusty, i.e. I did pull it for an hour, I had no problems with it maintained its vacuum throughout the entire time. The power cord must reach the work area with enough extra length to allow free movement while working. It is rated to pull a vacuum to 22.5 microns. After the vacuum has run long enough, close the valve that connects to the low-side gauge and let your pump hold the vacuum for 15 minutes. There seems to be a problem serving the request at this time, Gates Hydraulics, Pneumatics, Pumps & Plumbing, Industrial Pressure 1/4 in Port Diameter Air Regulators, Permatex Industrial Glues, Epoxies & Cements, STAUFF Hydraulics, Pneumatics, Pumps & Plumbing, {"modules":["unloadOptimization","bandwidthDetection"],"unloadOptimization":{"browsers":{"Firefox":true,"Chrome":true}},"bandwidthDetection":{"url":"https://ir.ebaystatic.com/cr/v/c1/thirtysevens.jpg","maxViews":4,"imgSize":37,"expiry":300000,"timeout":250}}. I am a new technician just learning. The exit from that type of filter is from the top of the body where the gas flow should be cleanest. They must also have a sufficiently low vapor pressure at the normal operating temperature of the pump as this determines the lowest pressure that the pump can attain. Vehicle exhaust fumes and accumulated refrigerant gas can kill you. ServiceHave your power tool serviced by a qualified repair person using only identical replacement parts. Keep the other Fitting capped while not in use. It is measured at the inlet to the pump. Then, close it off again. This is not a forum to advertise or promote specific suppliers, but let me say this. Manufacturers of heat treating and brazing vacuum furnaces and controls, complete hot zone and vacuum furnace retrofits, thermal spray coatings, plasma, HVOF and paint coating services. Avoid overfilling. This means that it is up to you, the pump user, to establish guidelines for oil changes based on your process. What are the functions and requirements of Vacuum Pump Oil? There are several ways to prevent the oil from being contaminated, depending on the type of contamination, by using gas ballast, traps or filters. if the plug will not fit the outlet, have a proper outlet installed by a qualified electrician. Extension cord too long or wire size too small. Indicates a hazardous situation that, if not avoided, will result in death or serious injury. As the distance from the supply outlet increases, you must use a heavier gauge extension cord. This device takes the contaminated oil from the reservoir, passes it through the filter unit and then returns it to the oil piping before the oil reaches the bearings. This warranty does not apply to damage due directly or indirectly, to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper installation, normal wear and tear, or to lack of maintenance.