gardner denver 5 x 6 mud pump parts free sample

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Maintain Pump Reliability and Performance with Genuine Gardner Denver Parts andSupport Services .......................................................................................................................... 2 Instructions for Ordering Repair Parts ................................................................................. 2 Model Matrix .......................................................................................................2 Customer Service Locations ........................................................................................... 3

Section 1, Pump Danger Notices .................................................................................................. 6 Covers & Guards ............................................................................................................ 7 Equipment Moving & Lifting ............................................................................................ 7 Pressurized Pump Systems ............................................................................................ 8 Flammable, Hot, Cold, or Corrosive Fluid Pumping ........................................................ 9

Section 2, Centrifugal Pump Fundamentals .................................................................................. 10 Pressure Head ................................................................................................................ 12 Net Positive Suction Head .............................................................................................. 12 Parallel & Series Operations ........................................................................................... 14 Trouble Shooting ............................................................................................................ 15 Square Braided Packing ................................................................................................. 16 Oil Seal Packing ............................................................................................................. 17 Standard Torque Chart ................................................................................................... 18

Section 3, Maintenance ................................................................................................................ 19 Disassembly ................................................................................................................... 19 Replacing Front Wear Plate ............................................................................................ 28 Packing ........................................................................................................................... 31 Assembly ........................................................................................................................ 34 Additional Parts .............................................................................................................. 45

Section 4, Technical Data & Parts List .......................................................................................... 47 4” x 5” Technical Data ..................................................................................................... 47 4” x 5” Assembly ............................................................................................................. 49 4” x 5” Parts List ............................................................................................................. 50 5” x 6” Technical Data ..................................................................................................... 51 5” x 6” Assembly ............................................................................................................. 53 5” x 6” Parts List ............................................................................................................. 54

1 MAINTAIN PUMP RELIABILITY AND PERFORMANCE WITH GENUINE GARDNER DENVER PARTS AND SUPPORT SERVICES

Gardner Denver® genuine pump parts are manufactured to design tolerances and are developed foroptimum dependability. Design and material innovations are the result of years of experience withhundreds of different pump applications. Reliability in materials and quality assurance is incorporatedin our genuine replacement parts.

Your authorized Gardner Denver Sales Office offers all the backup you’ll need. The Fort WorthManufacturing Facility maintains a large inventory of genuine parts.

Gardner Denver supports your needs with these services:1. Trained parts specialists to assist you in selecting the correct replacement parts.2. Repair and maintenance kits designed with the necessary parts to simplify servicing your pump.Authorized service technicians are factory trained and skilled in pump maintenance and repair. Theyare ready to respond and assist you by providing fast, expert maintenance and repair services.

 The pump model and serial number (see  The name and address of your company nameplate on the unit.)  Part number and description of the part.  The name and telephone number of contact person.  Part number and description of the part.  Your purchase order or requisition number.  Specify exactly the number of parts  Complete shipping address (where the required (do not order by sets or parts are to be shipped. groups).

COLUMN 1 - DISCHARGE OPENING SIZE 4 inch – Requires 5 inch suction opening size 5 inch – Requires 6 inch suction opening size

COLUMN 2 - SUCTION OPENING SIZE 5 inch – Required with 4 inch discharge opening size 6 inch - Required with 5 inch discharge opening size

Altoona – Gardner Denver San Antonio – Gardner DenverWell Service Pump Sales, Srv & Repair Aftermarket Parts & Srv150 Enterprise Drive 8034 NE Loop 410Altoona, PA 16601 San Antonio, TX 78219817.742.9600 210.662.2806

Fort Worth – Gardner Denver Tulsa – Gardner DenverAftermarket Repairs, Parts, & Srv Well Service Pump Sales7533 Kathy Lane 4747 South 83rd East AvenueFort Worth, TX 76126 Tulsa, OK 74145800.824.0271 800.637.8099

Fort Worth – Gardner Denver Odessa – Gardner DenverCentral W arehouse Well Service Pump Sales, Srv, & Repair2600 Sylvania Cross Drive 8620 E Hwy 191Fort Worth, TX 76137 Odessa, TX 79765817.248.4500 432.366.5433

Fort Worth – Gardner Denver Drilling Pump Aftermarket – Gardner Denver441 Winscott Rd. Repair and SupportFort Worth, TX 76126 2121 West 44th Street817.249.6400. Odessa, TX 79764 1.866.GDPUMPSOklahoma City – Gardner DenverAftermarket Parts & Srv Quincy – Gardner Denver2200 South Prospect Drilling Pump SalesOklahoma City, OK 73129 1800 Gardner Expressway405.677.5736 Quincy, IL 62304 217.222.5400Dickenson – Gardner DenverAftermarket Parts & Srv Argentina – Gardner Denver Repair and Support380 26th St. Building E, Suite 100 Sublote 6, Lote 1, Manzana 6, 8300Dickenson, ND 58601 Neuquen, Argentina701.225.6148 Canada – Gardner DenverConroe- Gardner Denver Repair and SupportManufacturing and Repair #105 6303 39th Street1700 Orval Road Leduc, AB T9E6E8Conroe, TX 77301936.539.2005 Middle East – Gardner Denver Repair and SupportNorthern Alberta – Gardner Denver Gardner Denver FZERepair and Support Jafza Views 18 Office 6039608-69 Avenue Jebel Ali Free ZoneClairmont, AB TOH OWO Dubai, United Arab Emirates780.612.2600 971.4.881.1744

Permian Basin-Gardner Denver Pump Parts – Gardner DenverManufacturing, Repair, and Support Repair and Support8620 TX 191 East Odessa, TX 79765 178 Bearcat Rd,432.366.5433 Aledo, TX 76008 817.441.7787

Gardner Denver® pumps are the result of advanced engineering and skilled manufacturing. To beassured of receiving maximum service from this pump the owner must exercise care in its operationand maintenance. This book is written to give the operator and maintenance personnel essentialinformation for day-to-day operation, maintenance and adjustment. Careful adherence to theseinstructions will result in economical operation and minimal downtime.Gardner Denver Design Features Give Long Life & Easy Maintenance. A light weight, compact, 4”x5” Pump and a medium weight 5”x6” Pump are extremely rugged and require minimal mounting space. A heavy steel frame and mounting bracket for horizontal or vertical positioning. Every frame is predrilled to accept a direct drive SAE hydraulic motor, in conjunction with an internal splined shaft to eliminate down time due to misalignment. A key driven shaft is also available. Segmented construction allows the customer to purchase only those parts necessary for repair. Sacrificial front and rear wear plates are provided with every new pump. Steel coated plates are normally provided, although rubber coated steel plates are available. Change of rotation may be easily accomplished by simply removing, turning, and repositioning the volute and changing the impeller to match the desired direction of rotation. The open impellers allow the free movement of large particles and extremely heavy, abrasive laden slurries. Available in either a clockwise or counterclockwise rotation, the impeller is secured to the shaft by a superior designed locking system. We offer two packing choices. Solid lip seals provide efficient service and with a minimal amount of attention. Split compression type packing is available for more severe service conditions and can easily be replaced without dismantling the pump. Bearing are double row inboard for radial thrusts, and a single row outboard for axial thrusts.

Safety is everybody’s business and is based on your use of good common sense. All situationsor circumstances cannot always be predicted and covered by established rules. Therefore, useyour past experience, watch out for safety hazards and be cautious. Some general safetyprecautions are given below:

Pumps are machines capable of producing high fluid pressures and flow rates and are designed tobe used with proper care and caution by trained, experienced operators. TO AVOID PERSONALINJURY, DEATH AND/OR EQUIPMENT DAMAGE, READ AND THOROUGHLY UNDERSTANDTHE FOLLOWING DANGER NOTICES PLUS THE ENTIRE OPERATING AND SERVICEMANUAL BEFORE ATTEMPTING TO MOVE OR OPERATE THE PUMP. Contact a GardnerDenver service representative, if you are unable to comply with any of the danger noticesor procedures described in these documents.

Closely examine the pump performance data upon pump delivery to become thoroughly familiarwith the operating limits for this pump model. The pump must never be operated at speeds,pressures or horsepower exceeding the maximum values or at speeds below the minimum.Failure to observe the operating limits could result in personal injury, death, and/orequipment damage and will void the warranty. Alterations to the pump, or application of thepump outside the limits, must not be made without Gardner Denver written approval, together witha new set of performance data, as dangerous operating conditions could result.

THE DANGER NOTICE AND DATA PLATED PROVIDED ON THE EQUIPEMNT MUST NOT BEREMOVED, PAINTED OVER, HIDDEN OR DEFACED. They must be replaced if they becomedamaged or unreadable. Provisions should be made to have the following written danger noticesplus the pump operating and service manual readily available to operators and maintenancepersonnel. In addition, copies of all pump system accessory component (e.g. hydraulic motor,engine, and electric motor, etc.) Read and follow all the precautions and instructions contained inthese manuals. If any of these documents are lost or become illegible they must be replacedimmediately. The danger notices plus the operating and service manuals should be rereadperiodically by both operators and maintenance personnel to refresh their memories in safeprocedures and practices.

Keep in mind that full operator attention and alertness are required when operating high pressurepumping equipment. Operators should not begin or continue operations when tired, distracted orunder the influence of alcohol or any type of prescription or nonprescription drugs.

The timely replacement of expendable parts and any other worn or damaged parts can preventequipment damage and possible injury. The original parts used in Gardner Denver pumps aredesigned and tested to exacting standards to provide high quality performance and durability. Yourbest insurance in maintaining these characteristics is to use genuine Gardner Denver replacementparts.

A broad range of danger notices are covered on these pages, however, they cannot substitute fortraining, experience and common sense in the safe operation of high pressure pumping equipment.

All moving parts on the entire pump package, including but not limited to engineor motors, drive shafts, belts, chains, pulleys, gears, etc., must be equipped withguards or covers, which must also be securely fastened in proper position at alltimes when the equipment is operating.

DANGERHeavy equipment including pumps, pump package units and components should only be movedor lifted by trained, experienced operators, who are physically and mentally prepared to devote fullattention and alertness to the moving and lifting operations. An operator should be fully aware ofthe use, capabilities and condition of both the equipment being moved, and the equipment beingused to move it.

Failure to follow safe and proper pump, pump package or component lifting ormoving procedures can lead to personal injury, death and/or equipment damagefrom shifting, falling or other unexpected or uncontrolled equipment movements.

Fully assembled pumps and pump package units are heavy and should only be moved using thespecified lifting lugs or attachments. Many individual components have lifting eyes or lugswhich must not be used to lift assemblies, as they are designed to bear the weight of thecomponent only. Before lifting the individual component check to insure the lifting attachment isfirmly secured to the component with undamaged, properly torqued fasteners, sound welds, orother secure attachments. Examine the lifting eyes, lugs, slots, holes or other projections to insurethey are not cracked, otherwise damaged or badly worn. The repair of existing or addition of newwelded lifting eyes, lugs or other projections should only be performed by experienced, qualifiedwelders.

Package units should be lifted with spreaders connected to the lifting attachments normally builtinto the package unit support skid. Packages too large to lift fully assembled should be separatedinto small loads. For these smaller loads the lifting devices should be fastened to the liftingattachments normally built into the individual motor, engine, pump or transmission/torqueconverter, or their separate support skids.

When lifting sub-assembled components, for example a suction stabilizer attached to suction pipingor a discharge pulsation dampener attached to a strainer cross and piping, use special lifting slingsdesigned to safely support the combined weight of the components.

7For these smaller loads the lifting devices should be fastened to the lifting attachments normallybuilt into the individual motor, engine, pump or transmission / torque converter, or their separatesupport skids.

When you start to lift a pump, package unit, subassemblies or individual components, and youobserve the equipment is tilting or appears unbalanced, lower the equipment and adjust the liftingdevice to eliminate these improper lifting conditions before proceeding to move the equipment.

It is poor practice and dangerous to allow the equipment to pass over or close to your body or limbs.Be prepared to move quickly out of danger if equipment starts to fall, slip or move unexpectedlytoward you.

Operating a pump against a blocked or restricted discharge line can produce excessive pressuresin the entire discharge system, which can damage or burst discharge system components.

Continually monitor suction and discharge hose assemblies when the pump is operating forleakage, kinking, abrasion, corrosion or any other signs of wear or damage.

Worn or damaged hose assemblies should be replaced immediately. At least every sixmonths examine hose assemblies internally for cut or bulged tube, obstructions and cleanliness.For segment style fittings, be sure that the hose butts up against the nipple shoulder, the band andretaining ring are properly set and tight and the segments are properly spaced. Check for propergap between nut and socket or hex and socket. Nuts should swivel freely. Check the lay line ofthe hose to be sure that the assembly is not twisted. Cap the ends of the hose with plastic coversto keep them clean until they are tested or reinstalled on the pump unit. Following this visualexamination, the hose assembly should be hydrostatically tested having adequate guards to protectthe operator, per the hose manufacturer’s proof test procedure.

Proper packing selection is important for safe pump operation. Contact a Gardner Denver servicerepresentative for assistance in selecting the proper packing before beginning operation.

Do not attempt to service, repair, adjust the packing or otherwise work on the pumpwhile the unit is operating. Shut off the pump drive motor or engine and relieve thefluid pressure in the pump suction and discharge systems before any work orinvestigation is performed on the pump or pump systems.

Whenever the pump is operating, continually monitor the entire suction, discharge and pumplubricating systems for leaks. Thoroughly investigate the cause for leakage and do not operate the

8pump until the cause of the leak has been corrected. Replace any parts which are found to bedamaged or defective. When a gasketed joint is disassembled for any reason, discard the usedgasket and replace it with a new genuine Gardner Denver gasket before reassembling the joint.

In summary, high pressure fluid streams can possess sufficient energy to cause personal injury,death and/or equipment damage. These results can occur either through direct contact with thefluid stream or by contact with loose objects the fluid stream has propelled, if the pump system isimproperly used, or if the fluid is misdirected or allowed to escape from defective or improperlymaintained equipment.

Extreme caution must be exercised by trained and experienced operators whenflammable, hot cold or corrosive fluids are being pumped, in order to avoid personalinjury, death and/or equipment damage due to explosion, fire, burn, extreme coldor chemical attack

Never operate a pump which is pumping hydrocarbons or other flammable, hot, cold, or corrosivefluids when any part of the pump, suction system or discharge system is leaking. Stop the pumpimmediately if any leakage, other than a few drops per minute of packing seepage, is observed.Keep all flame, sparks, or hot objects away from any part of the pump, suctions system or dischargesystem. Shield the pump, suction system and discharge system to prevent any flammable, hot,cold or corrosive fluid leakage from dripping or spraying on any components, flame sparks, hotobjects or people. Inspect the packing, gaskets and seals for fluid leakage frequently and replaceworn or leaking parts.

Selection of the proper gaskets, seals and packing is even more critical when flammable, hot, coldor corrosive fluids are being pumped than when other, inherently less dangerous fluids are used.Contact a Gardner Denver service representative for assistance in selecting the proper gaskets,seals and packing before beginning operation.

Since some packing seepage is inevitable, a catch pan is required and must be connected to adrain line which runs to container located in a protected area. The entire drain system and containermust be constructed of materials resistant to attack from the pumped fluid or from explosion or fireof the pumped fluid.

Before beginning pumping operations or starting the pump power source, (whether an engine orhydraulic or electric motor) check the atmosphere all around the pumping site for the presence offlammable or explosive vapors. Hot surfaces, sparks, electric current or engine exhaust could igniteflammable or explosive vapors. Each engine used as a power source on pumping units whereflammable or explosive vapors could form should be equipped with an air inlet shut-off. If flammableor explosive vapors are present in the pumping site atmosphere, an engine could continue to runon these vapors, even after the engine fuel line is shut-off, if an air inlet shut-off is not used.

In addition, on pumping units used where flammable or explosive vapors could form, all electricmotors used as power sources must be of explosion proof construction and all electricalcomponents and wiring must meet the current National Electrical Code for explosive atmospheres.

The pressure at any point in a liquid can be thought of as being caused by a vertical column of liquid which, due to its weight, exerts a pressure directly related to the height of the column which is called the “static head” and expressed in terms of liquid feet.

A centrifugal pump imparts velocity to a liquid, this velocity energy is transformed into pressure energy as the liquid leaves the pump. Therefore, the head developed is approximately equal to the velocity energy at the periphery of the impeller. This relationship can be shown by the following formula:

We can predict the approximate head of any centrifugal pump by calculating the peripheralvelocity of the impeller and substituting the above formula. The following formula may be used tocalculate peripheral velocity:

This demonstrates why we must always think in terms of feet of liquid rather than pressure when working with centrifugal pumps. A given impeller diameter and speed will raise a liquid to a certain height regardless of the weight of the liquid as shown in FIGURE 2-1.

10All of the forms of energy involved in a liquid flow system can be expressed in terms of feet of liquid.The total of these various heads determines the total system head or the work which a pump mustperform in the system. The various forms of head are defined as follows. Refer to FIGURE 2-2.

SUCTION LIFT exists when the source of supply is below the center line of the pump. Thus theSTATIC SUCTION LIFT is the vertical distance in feet from the centerline of the pump to the freelevel of the liquid to be pumped.

STATIC HEAD exists when the source of supply is above the centerline of the pump. Thus theSTATIC SUCTION HEAD is the vertical distance in feet from the centerline of the pump to the freelevel of the liquid to be pumped.

STATIC DISCHARGE HEAD is the vertical distance in feet between the pump centerline and thepoint of free discharge or the surface of the discharge liquid.

Suction Head Suction Lift Showing Static Heads in a Pumping System Showing Static Heads in a Pumping System Where the Pump is Located Below the Were the Pump is Located Above the Suction Suction Tank (Static Suction Head) Tank (Static Suction Head)

11PRESSURE HEAD must be considered when a pumping system either begins or terminates in atank which is under some pressure other that atmospheric. The pressure in such a tank must firstbe converted to feet of liquid. A vacuum in the suction tank or a positive pressure in the dischargetank must be added to the system head. Whereas a positive pressure in the suction tank or vacuumin the discharge tank would be subtracted.

The above forms of head, namely static, friction, velocity, and pressure, are combined to make upthe total system head at any particular flow rate. Following are definitions of theses combined or“Dynamic” head terms as they apply to the pump.

TOTAL DYNAMIC SUCTION LIFT (hs) is the static suction lift plus the velocity head at the pumpsuction flange plus the total friction head in the suction line. The total dynamic suction lift, asdetermined on pump test, is the reading of a gage on the suction flange, converted to feet of liquidand corrected to the pump centerline, minus the velocity head at the point gage attachment.

TOTAL DYNAMIC SUCTION HEAD (hs) is the static suction head minus the velocity head at thepump discharge flange plus the total friction head in the discharge line. The total dynamic dischargehead, as determined on pump test, is the reading of a gage at the discharge flange, converted tofeet of liquid and corrected to the pump centerline, plus the velocity head at the point of gageattachment.

TOTAL DYNAMIC DISCHARGE HEAD (hd) is the static discharge head plus the velocity head atthe pump discharge flange plus the total friction head in the discharge line. The total dynamicdischarge head, as determined on pump test, is the reading of a gage at the discharge flange,converted to feet of liquid and corrected to the pump centerline, plus the velocity head at the pointof gage attachment.

NPSH may be defined as the total suction head in feet absolute, determined at the suction nozzleand corrected to datum, less the vapor pressure of the liquid in feet absolute. Simply stated, is ananalysis of energy conditions on the suction side of a pump which will determine if a liquid willvaporize at the lowest pressure point in a pump.

The majority of centrifugal pump problems are a direct result of less than required NPSH. W e willattempt to list several things that can be done on the average hook up to improve or eliminatedthese problems.

While you will not be expected to calculate available NPSH it is important to understand thischaracteristic of centrifugal pumps so as to avoid problems when laying and hooking up suctionhose and lines.

Although most factors of available NPSH are controllable, friction loss is usually easier than theothers. Keep suction lines as short and straight as possible. The maximum volume for a 4” suctionhose is 8 BPM under ideal conditions. This can change with long lines, high lift and many otherconditions which would indicate a lower rate. The higher the flow rate, the higher the friction losswhich can result in air or vapor separation. This is always complicated further by elbows, tees andother sharp turns. Especially those located near the pump suction where they can set up unevenflow patterns or vapor separation which causes uneven filling of the impeller vanes. This can affect

12the hydraulic balance of the impeller, leading to possible cavitation, excessive shaft deflection,breakage and premature bearing and impeller retaining bolt failures.One of the most frequently encountered problems when there is insufficient NPSH available iscavitation. This term is used to describe the phenomenon which occurs in pumps when thepressure of the liquid being pumped is reduced to a value equal to or below its vapor pressure andsmall bubbles move along the impeller blades to higher pressure area, where they rapidly collapseand implode. This is usually heard as a growling or rumbling sound, much like the noise you wouldhear if you were pumping gravel. The forces are sometimes high enough to cause small fatiguefailures on the impeller vane surfaces. This of course is progressive under long period of thiscondition and the pitting and fatigue failure are referred to as “cavitation erosion” which cansometimes be severe enough to cause vibration, shaft and bearing failure.

The only way to prevent the undesirable effect of cavitation is to insure that the NPSH available tothe system is greater than the NPSH required by the pump. Refer to figure 2-3

PB = Barometric pressure, in feet absolute.vp = Vapor pressure of the liquid at maximum pumping temperature in feet absolute.P = Pressure on surface of liquid in closed suction tank, in feet absolute.LS = Maximum static suction lift in feet.LH = Minimum static suction head in feet.Hf = Friction loss in feet in suction pipe at required capacity.C.L. = Pump Centerline

Sometimes it is necessary to operate two or more pumps in conjunction with one another. The operationwill be either parallel or series depending on the arrangement. Refer to FIGURE 2-4.

In a parallel operation, the discharge head is equal to that of one pump, and the volume is equal to the totalof the two. In this case, care should be exercised with the suction manifold to insure that one pump doesnot starve. Also the discharge capabilities of each pump should be fairly close to avoid one pump movingfluid back through the second pump.

The results of a series operation is the opposite of parallel systems. The volume is limited to the capacityof one pump but the head is equal to the sum of the two. This occurs because performance curves denotethe differential head across the pump so the second pump will add its head to the head supplied to itssuction by the first pump. If this is attempted, it is imperative to know the maximum working case pressureof the pump to avoid bursting the second pump. In oil field service, this type of hook up is seldom if everused, never with slurry. In industrial service, it is done on a limited basis pumping fluids. Due to the highincidence of seal failure in the second pump, this type if operation should be discouraged.

Two pumps, each having the capacity of 20 BPM @ 100 ft. of head, are to be operated together. Theoutput for parallel and series operations is as follows:

Although the theoretical head for series operation is 200 ft., the actual head will be somewhat lower. Thisis due to the friction loss in the manifold between pumps and will vary with volumes and manifold.

1. Pump will not “pick up prime”. a. Pump too high above source of liquid. b. Seals or packing taking in air around shaft. c. Too much head space between impeller and front wear plate. d. Pump speed too slow. e. Restriction or blockage in suction. f. Worn parts, impeller, wear plates or volute. g. Impeller loose on shaft or key broken.

2. Low discharge pressure. a. Worn parts, impeller, wear plates, or volute. b. Restriction in suction. c. Pump speed too slow. d. Too much head space between impeller and front wear plate.

3. Pump noisy or vibrates. a. Cavitation b. Worn bearings. c. Out of balance. d. Loose mounting bolts. e. Misaligned coupling. f. Speed too high. g. Broke impeller vane.

5. Slurry pumps Slurry pumps will sometimes hold a normal discharge pressure and on hydraulically driven pumps the hydraulic pressure will be normal when pumping water. As the slurry weight increases the pumps and hydraulic pressures become erratic, the pump suddenly stops pumping and hydraulic pressure will usually drop to 25% of normal. The condition can almost always be traced to defective shaft seals in pump or seals that have been installed improperly with all the seal lips facing impeller. Next to the last seal in any mechanical seal arrangement must always face opposite the impeller to prevent air pick up around shaft.

To determine if the problem are the seals or a hydraulic problem, stall the pump (hydraulically driven unit only) and observe hydraulic pressure. If it is normal (usually 2600-2800 psi), the problem are the seals in the pump and not the hydraulic system.

This section covering square braided packing is being included as an alternate method of packingas most pumps are equipped with oil lip seals at time of construction. One advantage of the squarebraided packing is that in an emergency, extra packing can usually be added very quickly. If an oillip seal fails, it can sometimes be a major operation to replace these seals. The disadvantage ofsquare braided packing is that it requires more maintenance, and it can burn out in minutes if notproperly adjusted For cooling and lubrication, it should leak a small amount except as noted innumber 7, page 8. Tests show that the life is approximately 400% less than for mechanical seals.

1. Remove old packing from the stuffing box.2. Inspect shaft and stuffing box for cleanliness and wear. Replace worn parts and clean stuffing box as required.3. Cut rings to proper length if they have not been provided pre-cut, by use of spare shaft or packing cutter. Always cut ends on a bias to prevent leakage.4. Lubricate I.D. of each ring prior to installation with some type of break-in lubricant such as chassis lube. Lubricate the I.D. only.5. Install each ring individually and seat firmly to the bottom of stuffing box or previously installed ring. Rotate the joint or open end of each successive ring 90 apart, i.e., 12:00, 3:00, 6:00, and 9:00 o’clock when using four rings or more. This is done to minimize leakage paths through the body of packing set.6. After the last ring has been installed, tighten the packing follower only hand tight.7. Open suction and discharge valves, start pump and allow packing to leak for 10-15 minutes without adjusting the packing follower. During this period pump should be run at approximately ½ speed. This procedure is very important as it allows the packing to take a “set” and conform to the contour of the shaft and stuffing box.8. After run in period has been completed, start adjusting packing follower in very minor increments allowing 5-10 minutes between adjustments until leakage has reached a very low level. W hen pumping water it is always advisable to let packing leak a small amount. This provides cooling and lubrication. In preparing for pumping latex or other fluids where no leakage can be tolerated, the same procedure should be followed and packing should be tightened slowly to just the point where no leakage occurs.

16 CAUTIONThe previously listed packing is designed to run without lubrication except for break-inperiod. It should never be tightened any more than is necessary to stop excessive leakageas this increases temperature and accelerates shaft wear.

CAUTIONA lantern gland is installed in square braided packing which requires lubrication. Sometypes of packing require NO lubrication (except as noted in Number 4, this page). If non-lubricated packing is used, the lantern gland should be removed and replaced with neextra packing ring. Refer to Figures on page 31.

1. Remove old packing or oil seals from stuffing box.2. Inspect stuffing box for cleanliness and wear. Clean as required.3. Install first two oil seals with lips facing the impeller.4. The next seal is installed with the lip facing rear of pump and away from impeller. This seal prevents air pick up around shaft.5. The last seal is installed with lip facing impeller as first seals were installed. Some pumps require a small spacer behind the last seal. If a print of pump is not available, it may be assumed that a spacer will be needed if last seal is not flush with rear of stuffing box.6. Install packing flange or stuffing box nut and tighten at this time.7. Make sure that the oiler is operating properly.8. Start pump and circulate water for five minutes, check for leaks and make sure oiler cycles while pump is running.9. No further adjustments will be necessary for the life of the seals.

The following charts give the standard torque values for bolts, nuts and studs of SAE Grade 5 orbetter quality. Exceptions are given in other sections of the Service Manual where needed.

Use these torques for bolts and nuts with standard threads (conversions are approximate). THREAD DIAMETER STANDARD TORQUE inches millimeters lb. ft. Nm 1/4 6.35 9+3 12 + 4 5/16 7.94 18 + 5 25 + 7 3/8 9.53 32 + 5 45 + 7 7/16 11.11 50 + 10 70 + 15 1/2 12.70 75 + 10 100 + 15 9/16 14.29 110 + 15 150 + 20 5/8 15.88 150 + 20 200 + 25 3/4 19.05 265 + 35 360 + 50 7/8 22.23 420 + 60 570 + 80 1 25.40 640 + 80 875 + 100 1-1/8 28.58 800 + 100 1000 + 150 1-1/4 31.75 1000 + 120 1350 + 175 1-3/8 34.93 1200 + 150 1600 + 200 1-1/2 38.10 1500 + 200 2000 + 275

The 4” x 5” and the 5” x 6” pumps are similar except for the physical size and thepacking arrangement in the stuffing box. Therefore only one set of photos andinstructions will be used for maintenance and overhaul of these two pumps. Theassembly and disassembly photos shown are of a 4” x 5” CW pump with a splinedshaft drive.

Next, turn the frame over and loosen the set screw located in the hole on top ofthe impeller bolt. Then unscrew the impeller bolt and take off the impeller lock. To loosen the impeller bolt you will need to use an impact.

25Next pull the shims off. They are located above the bearing and below the frame cap and consist of either 2 or 3 pairs. When doing maintenance these usually need to be replaced. If the shims do not need to be replaced, it is important to keep shim pairs matched so that they line up properly.

26 And then pull the shaft assembly out. Check the shaft and all other parts in the assembly for wear and to make sure everything is intact. The shaft sees the most damage where the stuffing box sits.

To remove the bearings for replacement, pry the locking washer tang out of the slot in the bearing lock nut. The lock nut can be removed with a blunt punch or a chisel. Then the bearings and spacer can be pressed off from that same end. Below is a picture showing which parts to order if needed.

There are two different packing arrangements that can be used interchangeably. There is the rope packing and oil seal packing. Both packing choices use the same stuffing box.

However, the oil seal packing uses the one piece stuffing box nut and the square packing uses the two piece stuffing box nut. These caps should be screwed on hand tight.

31 The square rope packing assembly goes in according to the following picture. It consists of the following parts and should be placed in this order, with the top being where the cap goes. These parts can be ordered individually.

Note: These parts should go in the stuffing box throat bushing first. When placing the rubber seals in, insert them at an angle so they don’t catch on the greaser hole and tear. The rubber seals go in with the spring facing down.

After replacing all worn parts, follow the steps below to reassemble the pump.Some of these steps may be omitted depending on which parts were replaced.

35Apply grease to the inner edge of the volute and anti-seize around the perimeter where the studs are. Attach the suction adaptor to the volute. Torque the eight adaptor to volute nuts to spec. Then torque both of the adaptor to rear wear plate nuts.

With the stuffing box packed, apply anti-seize onto the bottom rim of the stuffing box that will be touching the frame. Slide the stuffing assembly onto the shaft with the nut facing down.

Insert the stuffing box so the grease hole is perpendicular to inner two holes on the bottom of the frame and facing the side where the grease fittings will go in.

41Put the impeller on the shaft with the key in the key way. There should be a 1/16” clearance between the impeller and both wear plates.

43 Insert the latch and spring, then tighten the cap hand tight. Make sure the latch lines up between two teeth on the stuffing box nut.

Next attach the frame assembly to the volute assembly. Make sure there is a1/16” gap between the impeller and front wear plate. To adjust the gap, install or remove shim sets. The stuffing box grease zerk should face where the voluteopens up. Torque all nuts to spec, starting with the frame to wear plate nuts first, then the remaining eight. The pump is now completely assembled.

4”x5” Front Rubber Wear Plate – 4”x5” Rear Rubber Wear Plate – PN TUL19849 PN 19853

5”x6” Front Rubber Wear Plate – 5”x6” Rear Rubber Wear Plate – PN 18822 PN 18836

4”x5” Extended Keyed Shaft Oil Seal – - PN 29132 PN 12456

Male Spline Information 0.875 O.D. 13 Tooth Flat Root Side Fit 30° Pressure Angle 0.8125 Pitch Diameter 16/32 Diametral Pitch SAE 13 Tooth Spline

Ref. Ref.No. Name of Part Qty. Part No. No. Name of Part Qty. Part No.1 SET SCREW ............................................. 1 28775 26 GASKET, SUCTION……………………….. 1 351932 IMPELLER BOLT....................................... 1 19846-T 27 SUCTION ADAPTOR……………………… 1 198383 IMPELLER LOCK ...................................... 1 19843-T 28 NUT………………………………………….. 24 397414 STUFFING BOX ........................................ 1 19842-T 29 STUD ......................................................... 14 232445 GREASE FITTING..................................... 1 45010 30 FRONT WEAR PLATE (STEEL) .............. 24 397416 THROAT BUSHING................................... 1 20123 30B O-RING ...................................................... 1 25BC1577 SQUARE COMPRESSION PACKING 1 Set 26018 30C O-RING ...................................................... 2 25BC206 (5 pieces per set)7A OIL SEAL SOLID PACKING...................... 3 or 4 6679 N/A FRONT WEAR PLATE (RUBBER) ........... 1 Tul198498 LANTERN GLAND..................................... 1 19850 31 GASKET DISCHARGE .............................. 1 352169 PACKING FOLLOW ER, 2 PIECE ............. 1 19845-2P 32 VOLUTE..................................................... 1 198309A PACKING FOLLOWER ............................. 1 19845 33 PIPE PLUG ................................................ 1 1565110 STUFFING BOX NUT, 2 Piece.................. 1 19848-2P 34 PIPE PLUG ................................................ 7 1565310A STUFFING BOX NUT, SOLID ................... 1 19848 35 CW IMPELLER (SHOW N) ........................ 1 Tul1983511 IMPELLER KEY ......................................... 1 45002 36 CCW IMPELLER (NOT SHOWN) ............ 1 1983612 IMPELLER SHAFT, KEYED DRIVE .......... 1 29132 37 REAR W EAR PLATE (STEEL) ................. 1 3255312A IMPELLER SHAFT, SPLINED................... 1 19839 37B O-RING 1 25BC58313 DRIVE KEY................................................ 1 45348 N/A REAR W EAR PLATE (RUBBER) 1 1985314 OIL SEAL, INBOARD ................................ 1 15004 38 STUD, REAR STEEL WEAR PLATE 2 2324515 FRAME CAP .............................................. 1 Tul19854 39 VENTED GREASE FITTING (TOP) ......... 1 38140V GREASE FITTING (BOTTOM)…………… 1 40E716 SHIM .......................................................... 2 or 3 19847 40 FRAME ...................................................... 1 1980917 BEARING, INBOARD DOUBLE ROW ...... 1 45307 41 MOUNTING BRACKET....………………… 1 2914118 BEARING SPACER ................................... 1 19844 42 STUD, MOUNTING BRACKET 4 2324219 BEARING, OUTBOARD SINGLE ROW .... 1 7607 43 GASKET .................................................... 1 1528620 BEARING LOCK WASHER ....................... 1 26015 44 STRAP ....................................................... 2 1985521 BEARING LOCK NUT ............................... 1 26014 45 HEX BOLT, STRAP/FRAME ..................... 4 655ED08022 O-RING ...................................................... 1 25AH18 46 LATCH (STUFFING BOX NUT) ............... 1 TUL1949823 OIL SEAL RETAINER, OUTBOARD ......... 1 Tul19852 47 SPRING ..................................................... 1 2386824 SNAP RING, OUTBOARD ........................ 1 26017 48 PIPE CAP .................................................. 1 2301525 OIL SEAL, OUTBOARD ............................ 1 12456

Male Spline Information 1.250 O.D. 14 Tooth Flat Root Side Fit 30° Pressure Angle 1.1667 Pitch Diameter 12/24 Diametral Pitch SAE 14 Tooth Spline

NOTE: Assembly shown is Clockwise Pump 53 Order by Part number and Description. Reference Number for your convenience only. 5” x 6” CENTRIFUGAL PUMP

Ref. Ref.No. Name of Part Qty. Part No. No. Name of Part Qty. Part No.1 SET SCREW ............................................. 1 28775 28 NUT………………………………………….. 4 397412 IMPELLER BOLT ...................................... 1 18829-T 29 NUT ........................................................... 16 232603 IMPELLER LOCK ...................................... 1 18838-T 30 STUD, WEAR PLATES ............................. 4 232454 STUFFING BOX ........................................ 1 18835-T 31 STUD, VOLUTE ........................................ 13 Tul219045 GREASE FITTING .................................... 1 45010 32 FRONT WEAR PLATE (STEEL) ............... 1 340186 THROAT BUSHING .................................. 1 Tul20122 32B O-RING...................................................... 1 25BC2057 SQUARE COMPRESSION PACKING ...... 1 Set 23541 32C O-RING...................................................... 2 25BC423 (5 pieces per set)7A OIL SEAL SOLID PACKING ..................... 3 or 4 11551 N/A FRONT WEAR PLATE (RUBBER) ........... 1 188228 LANTERN GLAND .................................... 1 18828 33 GASKET DISCHARGE ............................. 1 Tul351949 PACKING FOLLOW ER, 2 PIECE ............. 1 18830-2P 32B O-RING, for front steel wear plate............. 1 25BC2059A PACKING FOLLOW ER, SOLID ................ 1 Tul18830 32C O-RING, for front/rear steel Wear Plates .. 2 25BC42310 STUFFING BOX NUT, 2 Piece ................. 1 18837-2P 33 GASKET DISCHARGE ............................. 1 Tul3519410A STUFFING BOX NUT, SOLID................... 1 18837 34 VOLUTE .................................................... 1 1881411 IMPELLER KEY ........................................ 1 25161 35 PIPE PLUG................................................ 1 1565112 IMPELLER SHAFT, KEYED DRIVE ......... 1 18825 36 PIPE PLUG................................................ 4 1565312A IMPELLER SHAFT, SPLINED .................. 1 18826 37 CW IMPELLER (shown) ............................ 1 1882313 DRIVE KEY ............................................... 1 45116 38 CCW IMPELLER (not shown) ................... 1 1882414 OIL SEAL, INBOARD ................................ 1 20098 39 REAR W EAR PLATE (STEEL) ................. 1 3401715 FRAME CAP.............................................. 1 18821 39B O-RING...................................................... 1 25BC34716 SHIM.......................................................... 2 or 3 18832 N/A REAR W EAR PLATE (RUBBER).............. 1 1883617 BEARING, INBOARD DOUBLE ROW ...... 1 45309 40 FRAME ...................................................... 1 1881018 BEARING SPACER .................................. 1 18831 41 MOUNTING BRACKET ............................. 1 Tul2935819 BEARING, OUTBOARD SINGLE ROW .... 1 5609 42 STUD, MOUNTING BRACKET ................. 3 Tul2324820 BEARING LOCK W ASHER....................... 1 23136 43 GASKET .................................................... 1 2349421 BEARING LOCK NUT ............................... 1 89702 44 LOCKNUT ................................................. 4 44180700022 O-RING...................................................... 1 25AH26 45 STRAP....................................................... 2 1885523 OIL SEAL RETAINER, OUTBOARD......... 1 18833 46 BOLT, STRAP/FRAME ............................. 4 4511524 SNAP RING, OUTBOARD ........................ 1 23145 47 VENTED GREASE FITTING (TOP) ......... 1 38140V GREASE FITTING (BOTTOM)…………… 1 40E725 OIL SEAL, OUTBOARD ............................ 1 16117 48 LATCH (STUFFING BOX NUT) ................ 1 Tul1949826 GASKET, SUCTION.................................. 1 35264 49 SPRING ..................................................... 1 2386827 SUCTION ADAPTOR ................................ 1 Tul18820 50 PIPE CAP .................................................. 1 23015

54 For additional information contact your local representative or Gardner Denver Inc. 4747 South 83rd East Avenue, Tulsa, OK 74145 PH: (918) 664-1151, (800) 637-8099 FAX: (918) 664-6225 www.gardnerdenver.com

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