Pdf gear pumps are often used in tandem with singlescrew extruders to increase rate, decrease resin consumption, improve process stability, decrease. Call 8106534828 or 866360 pump to speak to a global pump technician. The control valve senses these requirements and directs fluid to the appropriate cylinder cavity in the steering gear and in the auxiliary cylinder if it is a dual. When the builtin safety valve of the pump is frequently activated, or remains activated when the gland packing is closed too tightly when the shaft bearing, shaft seal, etc. Support global pump support you may find an answer to your question on one of our support pages. The energy dissipation quality decreases momentary pressure spikes and smooths. Turn to the best for your next gear pump repair or overhaul. Maintenance of centrifugal pumps proper maintenance of a cf pump is important to ensure its troublefree and long service the maintenance operations of cf pump includes.
Water pump manuals how to access old water pump manuals. Our manual library might not be as old as raiders of the lost ark, but it expands every day. Mar 02, 2016 maintenance and troubleshooting of centrifugal pumps 1. Special versions can also pump liquids containing abrasive. Extended dry running install power sensor to stop pump. Connect the supply line from supply tank to the pump above tank bottom to avoid picking up any settled debris. Power gear leveling problem leveling fmca rv forums. Clogged impeller or foreign material in pump disassemble pump, inspect and remove foreign material, reassemble and set impeller with correct lateral settings 9. Knowing the system probably the greatest aid to troubleshooting is the confidence of knowing the system. The pump is probably the component most subject to wear in a hydraulic system, and the one most likely to cause a sudden or gradual failure in the system. Pumptec troubleshooting guide problem cause solution no water flow tank is empty.
If a pump gets to the end of the stroke and pressures out, its most likely that a switching valve is bad. Read this manual carefully to learn how to safely install, op erate and repair your pump. Hydraulic gear pump and motor failure analysis and repair guide. Foreign object holding pump inlet or discharge valves open. Abstract the paper comprises research results of the gear pump typical failures and their connection with symptoms observed. If the fuel containing methanol is not recommended by tank is overfilled, fuel could spill out due yamaha because it may cause fuel system. The heart of a hydraulic system is the hydraulic pump. If a pump has high pipeline pressure, verify the lube pump is turned on and working properly. Confirm your liquid temperature is within the maximum limits of the pump, less than 140f. A water pump manual is kind of like a fine bourbon, it gets better with age. The pump supply line from the tank should be plumbed from the. Have a licensed water well contractor or plumber check the pump and water system.
Discharge pressure too high increase pipe diameter. Enable delegates to optimise the operation and maintenance of different types of pumps. Centrifugal pump troubleshooting guide this material was reproduced from practical machinery management for process plants. Criterial quantities providing the wear symptoms identification of tested pumps, were separated during the pump characteristics empirically obtained analysis. With a grease pencil, ink marker or metal stamp, mark each housing or cover on the parting line in a way that will enable you to reassemble the parts in the same position when you put the unit back together. Wear clearance between gear teeth and gear chamber. Pump operation, troubleshooting and maintenance are dealt with in depth. Pull the pump and you will probably find the thrust washer and bearings are bad as is the pistons are galled which in turn cause the clicking sound. Pump inlets should be the first place to check when your pump loses pressure. Supplementary instructions delta solenoid metering pump. Rapid pump wear abrasives in fluid install suction strainer. Coastal hydraulics is the shop of choice for hydraulic system and component repairs.
Series d hydraulic gear pumps technical information. Low water levels in the tank can also cause run dry failure. This is because the hydraulic gear pump is one of the main components used in manufacturing, con. Do you have any questions about a part or an existing order. We offer you the best prices and great customer support. Check and clean the hoses and make sure the tank has no sludge in the bottom. At hydro gear parts youll find the best replacement for your mower or any outdoor equipment. Hydraulic gear pump and motor failure analysis and repair guide page 2 of 32 alamo industrial 1502 e walnut st, seguin, tx 78155. Checklist of problems vvith centrifugal pumps and their causes.
Snp1in 03ca cut away pump displacements quick reference chart for pump displacements vs. Inspections for possible problems with gear pumps download. To achieve the required flow and to ensure you have a suitable pump, you would n. You will also spot hydro gear pumps, filters, seal kits, and transmissions with parts lookup. Pump works for a while then quits leak in the suction hose repair any leaks in suction hose sum of suction and discharge head greater than rated head of pump check the total head requirements against pump performance curve. A new pump would barely permit a sheet of wrapping paper to be inserted.
If a pump is machine gunning, check the check valves on the control block. Pulse is an integral part of pumptec pump systems and provides very specific benefits. View and download onga jmm100 owners manual online. However, there are many reasons that a pump can lose pressure check out our troubleshooting tips and tricks below. Flood suction hose, restart pump and run pump until all air has been evacuated. If your pumpmotor system stops running you may have an electrical fault or foreign matter seizure.
Failure to do so could result in personal injury or. Troubleshooting tips for hydraulic pumps womack machine. Machinery failure analysis and troubleshooting by heinz p. They are one of the most common types of pumps for hydraulic fluid power applications. Hydraulic pump troubleshooting guide no oil flow from pump.
A gear pump uses two meshing, toothed cogs to force water from the inlet of the pump through to the outlet. Excessive noise and vibration suction andor discharge piping not anchored or properly supported anchor per hydraulic institute standards. Pump impellers and seals may fail and foreign matter and debris from the tank can clog the pump internals. Pump andor water system low pump production in spite of normal water level in well. It includes information on general centrifugal pump problems and their effect on centrifugal pumps with suggestions as to probable causes and solutions. When leakage flow is big enough to become a pressure limiting factor, all of the input power is transformed into heat, and the pump essentially becomes an industrial oilheater. Checklist of problems vvith centrifugal pumps and their causes centrifugal pumps are one of the worlds most commonly used devices. Gear pump manual original instructions albany pumps. The gear pump failure states, that occurred most often, were identified in chapter 3. Capacity of charge pump less than capacity of power pump. The pump is arguably the heart of almost every hydraulic system and, as such, has traditionally been blamed for almost every operating problem. When leakage flow is big enough to become a pressure limiting factor, all of the input power is transformed into heat, and the.
The inclusion of adequate test points for pressure readings, although not essential for operation, will expedite troubleshooting. Js100, jsm100, jsk110, js110, jsp110, jsk120, js120, jsp120. When a pump wearsout, its sealing clearances become larger, which causes reduction of useful flow and an increase of the internal leakage. Typical problems and their effect on rotary lobe pumps 19 detailed look at the most common problems advising causes and solutions. According to the chart, the line loss is 50 psi per 100 ft of hose. Pulse hose is a specially manufactured hose that, unlike typical hose, will expand slightly to dissipate energy. Base not rigid enough tighten holddown bolts on pump and motor or adjust stilts. We are a specialized dealer on hydrogear parts and equipment for your lawn mower or other outdoor power equipment. When a hydraulic system has problems, it is common practice to first look at the pump. Corrosion wear use materials of construction that are acceptable for fluid being pumped. Sni1 pumps only include european flange and shaft configurations code 01ba, 01da, and 03ca. Try to set preconceived ideas of what could be wrong aside and base your statement on facts that are accurate and unbiased. When troubleshooting an internal gear pump or any other pump for that matter, develop a clear, concise, and objective statement of the problem.
Adjust relief valve to manufacturers specification. Gt series hydraulic pump service instructions pump disassembly procedure 1. Whether youre looking for hydro gear transaxles, such as hydro gear zt3100, zt2800 among others. If that is the case with the one you are working with, and it has a ground terminal, just run ground wire from the negative terminal to any ground location, such as the mounting bolt for the motor. If a pump is slamming hard at the end of the stroke, check the setting on the throttle valves on the control block or verify that material is present.
If not, global pump offers troubleshooting support from a qualified and certified technician to all customers and users of a global pump unit. The control valve senses these requirements and directs fluid to the appropriate cylinder cavity in the steering gear and in the auxiliary cylinder if it is a dual steering system at the proper flow rate and pressure. If your pump motor system stops running you may have an electrical fault or foreign matter seizure. Dec 01, 20 a situation many find themselves in is when a small plastic diaphragm pump with long hoses on hose reel is expected to provide critical flow and pressure out the nozzle at the end. This document has been produced to support pump users at all levels, providing an invaluable reference tool. Misalignment longcoupled pump align pump and motor. However, finding a manual for specific model can lead you on an indiana jones treasure hunt. The amount of reduction will depend on the geometry of that section of the particular pump and will vary from pump to pump. When you repair or replace any pump with metal transfer make sure you flush the system,on a grasshopper make sure you clean the little inline strainer also along with changing the filter. Reduce pump speed or use larger pump running at lower speed. Factory set gear pumpheads overview of gear pumps flow rates and models flow rates mlmin bar model page min. Geitner by permission of the publisherbutterworth heinemann of 225 wildwood avenue, woburn ma. Defects classification pawel pietkiewicz chair of mechanics and machine design university of warmia and mazury in olsztyn k e y w o r d s. Hydraulic gear pump and motor failure analysis and repair.