Table of Contents
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- 1 Instructions for Ordering Repair Parts
- 2 List of Illustrations
- 3 Section 2, Operating and Maintenance Instructions
- 4 Lubrication, Power End
- 5 Fluid Cylinders
- 6 Plunger Packing
- 7 Net Positive Suction Head Required (Npshr) at Fluid Cylinder Suction Connection with Suction Stabilizer and Discharge Pulsation Dampener Installed
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Table of Contents
Related Manuals for Gardner Denver GD-250
Summary of Contents for Gardner Denver GD-250
- Page 1 Rental Pump Supplied By 3-1-618 GARDNER DENVER ® Version 1 January 2011 TRIPLEX PISTON PUMP 5” STROKE MODEL GD-250 WELL SERVICE OPERATING AND SERVICE MANUAL...
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Page 2: Instructions For Ordering Repair Parts
Authorized distributor service technicians are factory trained and skilled in pump maintenance and repair. They are ready to respond and assist you by providing fast, expert maintenance and repair services. For the location of your local authorized Gardner Denver and OPI distributor, refer to the yellow pages of your phone directory or contact:... -
Page 3: Foreword
FOREWORD Gardner Denver pumps are the result of advanced engineering and skilled manufacturing. To be assured of receiving maximum service from this machine the owner must exercise care in its operation and maintenance. This book is written to give the operator and maintenance department essential information for day-to-day operation, maintenance and adjustment. -
Page 4: Table Of Contents
TABLE OF CONTENTS Maintain Pump Reliability and Performance with Genuine Gardner Denver Parts and Support Services ....................... i Instructions For Ordering Repair Parts ..................i Foreword ..........................ii Index............................iv List of Illustrations........................v Section 1, Danger Notices ....................... 1 Section 2, Operating and Maintenance Instructions .............. 7 Crankcase Oil Requirements.................. -
Page 5: Index
INDEX Bearings, Main ............13 Location..............7 Lubrication, Packing..........12 Connecting Rods............ 13 Lubrication, Power End..........8 Corrosive Attack, Fluid End........13 Covers and Guards, Danger Notice ......2 Main Bearings ............13 Crankcase Oil Requirements ......... 16 Moving and Lifting Equipment, Danger Notice ..2 Crosshead and Pins .......... -
Page 6: List Of Illustrations
INDEX (Continued) Valve, Pressure Releif..........7 Viscosity Conversion Table........22 Valve Seat Pulling, Danger Notice ......2 Viscosity or Temperature, Correction Char ... 21 Valves, Tapered Seat..........10 Wedge Puller, Danger Notice ........2 LIST OF ILLUSTRATIONS Figure # Description Page Figure 1 View of the Eccentric thru the Hood Opening (Step 1)............. -
Page 7: Section 1, Danger Notices
ENTIRE OPERATING AND SERVICE MANUAL equipment damage and possible injury. BEFORE ATTEMPTING TO MOVE OR OPERATE original parts used in Gardner Denver pumps are THE PUMP. Contact a Gardner Denver service designed and tested to exacting standards to representative if you are unable to comply with any provide high quality performance and durability. -
Page 8: Equipment Moving And Lifting
• Fully engage the hammer bar, if one is COVERS AND GUARDS used, to prevent it from disengaging violently from the cover as a blow is struck. • Wipe their hands and the hammer handle DANGER and maintain a firm grip on the handle to avoid losing control of the hammer while Personal injury, death and/or equipment swinging and striking. -
Page 9: Pressurized Pump Systems
Fully assembled pumps and pump package units PRESSURIZED PUMP SYSTEMS are heavy and should only be moved using the specified lifting lugs or attachments. DANGER Many individual components have lifting eyes or lugs which must not be used to lift Fluids under high pressure can possess assemblies, as they are designed to bear the weight of the component only. - Page 10 relief valve must be set to relieve at a pressure Before starting the pump the first time and equal to or below the rated capability of the lowest periodically thereafter check the pump, suction and rated component. discharge system fastener torques versus the values listed on page 26 to insure proper tightness.
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Page 11: Flammable, Hot, Cold Or Corrosive Fluid Pumping
FLAMMABLE, HOT, COLD OR CORROSIVE wiring must meet the current National Electrical Code for explosive atmospheres. FLUID PUMPING These precautions must be taken to avoid possible personal injury, death and/or equipment damage DANGER from explosion, fire or burns. HIGH PRESSURE LIQUID JETTING, BLASTING Extreme caution must be exercised by AND CLEANING trained and experienced operators when... - Page 12 When operating a pressure and flow directing Always be aware of the pressure level in the device, use only equipment which automatically system and never connect any equipment to the shuts off flow when an operator releases hand or system which has a rated or tested pressure foot pressure on the pressurized flow trigger control capability below the system operating pressure.
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Page 13: Section 2, Operating And Maintenance Instructions
75 PSI must relief valve manufacturer’s catalog and/or instruction be approved in writing by Gardner Denver Inc. manual. Engineering Department. SUCTION PIPING - Suction pipe (or hose if used) DANGER should be the full size of suction opening. -
Page 14: Lubrication, Power End
A list of recommended grades vs. The GD-250 Pump is NOT equipped with any type of temperatures is located at the back of this manual oil circulating pump. It is up to the customer to and on the pump lubrication data plate. The list is... -
Page 15: Heat Exchanger, (Optional Equipment)
WARNING DANGER The GD-250 pump must be driven only in the direction indicated on the frame to provide adequate lubrication and prevent excessive The frame cradle safety cover, all guards pump wear. -
Page 16: Operation
It is necessary to strike the seat once to assure a on continuous service without written perfect seat. This may be done with a short section approval from Gardner Denver Inc. Failure of hard wood and a four-pound (1.8 kilogram) to observe this warning could result in hammer. -
Page 17: Fluid Cylinders
Remove the gland nut and the all the fluid cylinder Before installing a valve, inspect the valve seats and stud nuts. Remove the fluid cylinder assembly from fluid cylinder valve deck tapers to insure they re not the front of the frame. Next remove the stuffing box scratched, nicked or otherwise damaged. -
Page 18: Plunger Packing
Use only Gardner Denver replacement plungers, as When the nonadjustable packing is used, tighten the many other brands do not have the material quality or gland firmly with a 24 inch section of one half inch fine surface finish needed to provide long plunger and pipe placed over a lock pin, which has been inserted packing life. -
Page 19: Bearings, Main
Anodes, mounted on threaded plugs, are some degree. Bearing cones are a shrink fit onto the available from Gardner Denver Inc. eccentric shaft and the cups are a light fit in the end plates. -
Page 20: Oil Stop Heads
KEYED SHAFT SPLINED SHAFT OIL STOP HEADS - Oil stop head seals keep WARNING crankcase oil within frame and also help keep rod wash fluid and foreign material from entering the When installing oil stop head seal rings, crankcase. care must be taken not to damage sealing lips. - Page 21 WARNING WARNING When mud or other foreign material is Failure to properly reinstall and maintain found in the crankcase, the oil must be baffles voids the warranty as they are changed before operating the pump to designed to help prevent mud and other avoid damage to moving parts.
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Page 22: Crankcase Oil Requirements
Marketing or Service for the current factory recommended defoamant to be added to the lubricating oil. When it is not possible to contact Gardner Denver people, a small amount of kerosene added to the oil will usually reduce foaming. One half of a fluid ounce of kerosene added to each gallon of oil should be sufficient to control foaming. -
Page 23: Gardner Denver Horizontal Pump Recommended System Layout For Proper Performance
If a tank baffle cannot be installed, flow into adequate to satisfy pump requirements. Refer the tank must be directed away from tank to NPSHR curve or consult Gardner Denver outlet to pump so entrained gasses do not Marketing. flow directly into tank outlet. - Page 24 FIGURE 1 (STEP 1) FIGURE 2 (STEP 2) 3-1-618 Page 18...
- Page 25 FIGURE 3 (STEP 3) FIGURE 4 (STEP 4) 3-1-618 Page 19...
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Page 26: Net Positive Suction Head Required (Npshr) At Fluid Cylinder Suction Connection With Suction Stabilizer And Discharge Pulsation Dampener Installed
NET POSITIVE SUCTION HEAD REQUIRED (NPSHR)* AT FLUID CYLINDER SUCTION CONNECTION WITH SUCTION STABILIZER AND DISCHARGE PULSATION DAMPENER INSTALLED Pump Bulletins list the maximum and minimum plunger sizes. Interpolate between NPSH curves for each plunger size. *NPSHR is defined at a 3% flow drop below maximum capacity. Added suction head above that shown by the curves must be provided for the higher vapor pressure of warmer water (curves are based on 60°... -
Page 27: Correction Chart For Temperature Or Viscosity
CORRECTION CHART FOR TEMPERATURE OR VISCOSITY 3-1-618 Page 21... -
Page 28: Viscosity Conversion Table
VISCOSITY CONVERSION TABLE This table lists a comparison of various viscosity ratings, when the viscosity is given in terms other than Saybolt Universal, it can be translated by following horizontally to the Saybolt column. Seconds Kinematic Seconds Saybolt Viscosity Saybolt Seconds Seconds Seconds... -
Page 29: Section 3, Trouble-Shooting
SECTION 3 TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SUGGESTED ACTION Pump Overloads Driver. Excessive pump speed Reduce pump speed and/or and/or discharge pressure. pressure. Blockage or closed Clean or open valve. valve in discharge line. Improper bypass conditions. See recommended system layout, and correct error. Fluid Not Delivered. - Page 30 PROBLEM POSSIBLE CAUSE SUGGESTED ACTION Cavitation, Fluid Knock or Hammer High fluid temperature or Reduce pump speed per (continued). viscosity. chart in manual. High fluid vapor pressure. Increase NPSH. High acceleration head. Increase supply line size. Decrease supply line length. Suction valve spring too stiff Use more flexible spring.
- Page 31 PROBLEM POSSIBLE CAUSE SUGGESTED ACTION Knock In Power End (continued). 8. Worn crankshaft. 8. Replace. 9. Worn crosshead. 9. Replace. 10. Worn main bearing. 10. Replace. 11. Valve noise transmitted to 11. See Excessive Valve Noise power end. problem. 12. Cavitation noise transmitted to, 12.
- Page 32 PROBLEM POSSIBLE CAUSE SUGGESTED ACTION Pump cavitating. See Cavitation, Fluid Knock Hammer problem. Corrosion. Treat pumped fluid. Use different materials for valves/seats. Install sacrificial anodes in suction manifold. Catastrophic Failures Such As Pump overloaded. Reduce pump speed and/or Broken Shafts, Bent Rods, etc. pressure.
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Page 33: Running Clearances – Actual
SECTION 4 REBUILDING DATA, RUNNING CLEARANCES and TORQUES REBUILDING DATA FOR GD-250 MODEL PUMPS PUMP STROKE 5 Inches 127 mm Eccentric Throw Diameter 10.4930 / 10.4915 266.522 / 266.484 Eccentric Shaft Diameters: Extension End (Drive Side) 3.875 / 3.874 98.425 / 98.400 Rotary Union End (Off Drive Side) 3.9388 / 3.9379... - Page 34 (800) 682-9868 FAX: (217) 223-1581 For Domestic parts information Contact: Specifications subject to change without notice. Gardner Denver – Fluid Transfer Division, Copyright © 2011 Gardner Denver, Inc. DJC Litho in U.S.A. 2200 South Prospect, Oklahoma City, OK. 73129 http://www.gardnerdenver.com pumps@gardnerdenver.com...