This section deals with problems with stationary rotary screw air compressors. Rotary screw compressors direct injection, oilinjected, directcooled, flooded various names are suggestive of the direct contact. Rotary screw compressors csd csdx series brochure flow rate 1. This process is called oil injection and its purpose is to cool the compressed gas and to seal the space between the rotors and the casing.
These link to the most popular products in that category, and may not necessarily fit your compressor. When a reciprocating type air compressor makes loud noises that seem obnoxious and out of character, its likely due to one of the following, easily corrected issues. Hs refrigeration screw compressor troubleshooting guidelines. Hanbell screw compressors used the simple and more reliable oil separator and unique types of bearing for axial and radial loads. An oilflooded rotary screw compressor includes a lubricant that fills the gap between the rotors, which creates an airtight hydraulic seal and transfers mechanical energy between the two. Either an electrical problem, or the compressor has tripped on a safety device. Cs screw compressor troubleshooting guidelines bitzer training. Whether they are new, or have been in use for years, every air compressor user will one day have air compressor problems and fixes.
Air compressor troubleshooting problem possible cause possible solutions pressure drop in the tank air leaks at connections let the compressor build pressure in the tank, to get the maximum pressure if possible. Positive displacement compressors include reciprocating piston types of various design and rotary types, which include helical screw, straight lobe, liquid piston and rotary vane compressors. Compressors are classified as either positive displacement, where intermittent flow is provided, or dynamic, which provides continuous flow of the air or gas being compressed. Two types positive displacement reciprocating rotary screw. Ingersoll rand rotary screw compressors add unequalled reliability, efficiency and productivity to virtually any. You are now on the reciprocating piston compressor troubleshooting page, but theres also the rotary screw compressor page and the portable diesel compressor page.
In this section of mechanical books you will find compressor handbook pdf for direct downlod. Jan 09, 2017 screw air compressor maintenance kyungwoncoaire duration. Rwf ii rotary screw compressor units installation installation foundation if rwf ii rotary screw compressor unit is shipped mounted on a wood skid, it must be removed prior to unit installation. Rotary screw air compressor air compressor pdf manual download. Relieve the holding charge by removing the threaded cap on the low pressure schrader.
Controls startup, operation, service, and troubleshooting. Over the years, i repaired and troubleshooted hundreds of rotary screw air compressors. Mcguire air compressors 18882299999 2 trouble probable cause corrective action starter trips repeatedly excessive current draw to determine maximum amperage allowed, multiply the fla on the motor nameplate by the service factor. Portable rotary screw compressor troubleshooting industrial. S e r v i c e m a n u a l micro control systems inc. S70101 iom rxb plus rotary screw compressor units page 6 installation fig. Troubleshooting compressor problems compressor types and applications compressors are classified as either positive displacement, where intermittent flow is provided, or dynamic, which provides continuous flow of the air or gas being compressed. Common rotary screw air compressor problems compressor will not start you press the start button but nothing happens. Warning allow space for servicing the unit per factory drawings. Package for the owner that just wants a compressor they can turn on and run. Rotary screw compressor troubleshooting compressed air systems. The internal pressure must be relieved before attempting to remove any compressor fitting or part. View and download ingersollrand rotary screw air compressor product safety information online.
Air compressor troubleshooting guide air compressor guide. After maintenance and repair work has been completed, the parts must be cleaned with an. The machine must only be lifted using suitable equipment in accordance. Do not use this product for any purposes other than the intended use or outside the scope of the specification.
Basics of operation and application of oil flooded rotary screw compressors 149 figure 6. Circuits are identified as circuits a and b, and compressors are identified as a1 or a2 in circuit a, and b1 or b2 in circuit b. When brazing piping to service valve, wrap it in a wet cloth to prevent heat damage. Brush soapy water on air connections and look carefully for air bubbles. The compressor system of a diesel portable air compressor is 95% the same as for a stationary electric compressor. Dec 11, 2014 rotary screw air compressor troubleshooting faq.
Report broken links to contact us compressors introduction download a practical guide to compressor technology second edition download atlas copco compressed air manual 8th. A rotary screw air compressor is a positive displacement compression system that includes a pair of matching helical screws. Polar compressor rotary screw compressors revision july. Rotary screw compressor generator combos provide power and airflow for a variety of air tools and power tools, electrical lights and more. Sep 04, 2018 how screw compressor load and unload, oil seperator and oil flow to bearing. Troubleshooting ingersoll rand compressor oil leak. Reciprocatingpiston air compressor troubleshooting through this website i have helped hundreds of people from all over the world with their compressor repair and troubleshooting questions. Openframe duplex rotary screw compressors are the ultimate in electrical efficiency. This product is a general purpose screw compressor to be used for refrigeration, cold storage. Our duplex rotary screw compressors are built to be easy to service, maintain and operate. Common rotary screw compressor problems and issues that have been reported. Pdf screw compressor oil spill troubleshooting christine.
You will be able to use most of the information in this guide to fix your problem. Large rotary screw single and twostage air compressors 100500 hp 75350 kw rotary screw air compressors reliability at your fingertips. How screw compressor load and unload, oil seperator and oil flow to bearing. Never use air from this compressor for breathable air except in full compliance with osha standards 29 cfr 1910 and any other federal, state or local codes or regulations. Compound cseries compressors are suitable for low temperature applications where energy savings is important and space is at a premium.
However, operators and maintenance persons are responsible for maintaining safety. Compressor not producing enough air 1 drain air tank and measure pump up time. Compressor service training seminars for industrial refrigeration. In a typical reciprocating piston compressor, air or gas is drawn into the. There are also many links to items within our online store. Positive displacement compressors include reciprocating piston types of various.
Compare with proper time for compressor model see lacory guide. Single screw compressor classes principals of single screw compressor design and operation handson teardown and reassembly of single screw compressors refrigeration oil, methods of oil cooling and oil management economizer operation compressor servicing, troubleshooting tips and maintenance. With power to run 1inch impact wrenches combined with generators, welders or jump starters in the field or on the job site, this is what you need when you need to get the job done. The screw component of a rotary compressor alternately called the pump or airend is the principal piece of the systems functionality. Compressor combination packages industrial duty air compressors for maintenance trucks, service fleets or technicians that need to save space and weight. Rotary screw air compressors troubleshooting faq rees air. Screw compressors are categorized as intermittent motion compressors noncontinuous flow. Troubleshooting compressor problems salemmbrothers. Air compressor trouble shooting guide mcguire air compressors. Open frame duplex rotary screw compressors are the ultimate in electrical efficiency. Portable rotary screw compressor troubleshooting industrial gold. Individual seminars on industrial compressors and compressor electrical systems are presented at regular intervals throughout the year at a dedicated training facility at sullairs corporate headquarters in michigan city, indiana. The screw compressor is factory supplied with 15 psig 2 bar holding charge of nitrogen or dry air.
The complete workings of the whole air compressor is explained. Provided below is a general list of common air compressor problems, and a few quick fixes that may help solve your dilemma. With compressors, operation failure could stem from one of the other issues covered in this air compressor troubleshooting guide. Remove the compressor cylinder head and inspect for foreign matter on top of the piston. Ingersoll rand is the technology leader in oilfree compressed air not only because we develop classleading products, but also because we know our. Most flooded type screw compressors use cooled oil injected into the rotor cavities. Rotary screw compressor units models 12 101 form 070. Maintenance and repair of the motor are just like any other electric motor. All compressed gas is pushed out the discharge ports. Before the compressor is removed from the base, internal pressure should be reduced to atmospheric pressure. View and download kaeser ask t series service manual online. Reciprocating air compressor troubleshooting basics air. Air compressor motor troubleshooting part 1 bad start capacitor switch duration.
Compressor operation to understand the challenges in troubleshooting compressor problems and to more effectively maintain this critical machinery, it is necessary that operators have a full understanding of their particular compressor operation. The life of the compressor shaft seal and bearings, as well as the life of the motor bearings, is dependent upon proper coupling alignment. A variable vi mechanism allows these compressors to be adjusted readily for most operating conditions and a new tooth profile 0 profile has been introduced to further. Pillis global products manager for screw compressors frick division of york international waynesboro, pennsylvania joseph w. Maintenance procedures as recommended by frick for. The inletloading valve opens and closes according to air demand. Air compressor troubleshooting portland compressor. This icon indicates instructions to avoid property. Air compressor troubleshooting, problems, the causes. I truly hope these pages will help you troubleshoot your air compressor. Get help with the most common problems for rotary screw compressors. Instruction includes discussion of the function and installation of sullair service parts, troubleshooting of the most.
Air compressor troubleshooting guide air compressor. However, the pump can wear down and require maintenance long before it reaches the end of its life expectancy. Basics of operation and application of oil flooded rotary screw compressors by joseph w. Six automatic maintenance notifications are built into the polar air compressor system designed to signify when maintenance is due for certain components. In these troubleshooting basics series i explain the most common problems and their solutions. Rotary screw compressor troubleshooting compressed air. Installation 06t semihermetic instructions screw compressor.
Marine compressors mas oilinjected screw compressors for marine. I know compressor problems can quickly result in hours if not days of production. This is a 146 page informationpacked troubleshooting guide for oilinjected rotary screw air compressors. Screw compressor is called so as it contains two screws, one of them is driver mounted with prime mover motor, turbine. It may also be a good idea to replace your vibration pads. Troubleshooting the compressor and diagnosing mechanical. I want to use your guide to learn about rotary screw air compressors in general.
This page lists by category many of the common problems air compressors have. Vibration case study screw compressor problems from pdm. In multiple compressor systems, manual valves must be installed to isolate each compressor. Rotary screw air compressor troubleshooting basics air. It also used the high precision cnc machining center, thread grinding machine to machine the compressor casing and. Large rotary screw single and twostage air compressors. Air compressor troubleshooting, problems, the causes, solutions. The solenoid valve leaks when the compressor is idle.
Troubleshooting the compressor and diagnosing mechanical, an advantage of such a meter is a builtin current clamp this allows current to be measured without breaking into the electrical circuit a compressor failure is often caused by an electrical fault to check the compressor for electrical problems. Large rotary screw single and twostage air compressors 100. Troubleshooting major problems that may be experienced during the use of this product are listed together with. Rotary screw air compressor troubleshooting over the years, i repaired and troubleshooted hundreds of rotary screw air compressors. The cseries compressor is suitable for ammonia and freon applications. Let the air in the tank flow out until all the pressure is released. Rotary screw compressor generator combo open frame industrial rotary screw compressors are built with service and the ease of use in mind. While the basic working principle of any air compressor can be the same, the design of ach equipment is different from manufacturer to manufacturer and from one model to another. Pillis is global products manager for screw compressors with the frick division of york international, in waynesboro, pennsylvania. The inlet valve is controlled by a solenoid valve that supplies control air to the inletloading valve. Do not use air line antiicer systems in air lines supplying respirators or other equipment used to produce breathable air.
The methods for reducing pressure inside the compressor vary according to the type of system. You are now at the rotary screw air compressor section of the largest online troubleshooting and repair guide for air compressors. One of the best places to refer for repair and service of your air compressor is the owners manual. On machines with automatic startstop system or if the automatic restart function after voltage failure is activated, a sign stating this machine may start without warning must be affixed near the instrument panel. Air compressors screw compressors piston compressors. Fortunately, the latest compressor controls contain troubleshooting diagnostics and fault indicators there are generally five areas of the compressor that require maintenance. They can also be categorized with medium flow and medium pressure compressors compared with other types of compressors on pressure flow chart for compressor types. President of compressor technique atlas copco we welcome your feedback. These guidelines are supplied as a recommended procedure for troubleshooting the cs screw compressor.
Hydraulic unloader valve passes air to suction unloader when running oil. Insufficient air flows across the evaporator and condenser coils. My guide will show you how to troubleshoot the most common air compressor problems. Marine terminal staffs this course is designed, developed, and delivered under iso quality standards a successful 5day inhouse training course. A screw compressor can run loaded pumping air or unloaded idle. Pump with an integral belt driven rotary screw air compressor for. Here are some of the most frequently asked questions and the most common reciprocating compressor problems.
The first requirement of the compressor foundation is that. When inquiring about the compressor or unit, or ordering repair parts, provide the model, serial, and frick sales order numbers from these data plates. Available in a variety of horsepower, tank, and electrical voltage from 10500 cfm. Screw compressor is called so as it contains two screws, one of them is driver mounted with prime mover motor, turbine and the other one. At the end of the discharge process in the screw, no clearance volume remains. Apr 08, 2015 screw compressors are categorized as intermittent motion compressors noncontinuous flow. Therefore, screw compressor troubleshooting is often necessary in this area.
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