Inspection upon Arrival

Your pump has been carefullyinspected prior to shipment toinsure that it meets yourrequirements. Please inspect thepump upon arrival for any damagethat might have occurred duringshipment. Report any damageimmediately to the carrier.

Leave all shipping covers attachedto the pump unit until it is ready forinstallation. If installation is to bedelayed for more than 15 days, thepump shaft should be rotated byhand once a week to lubricate thebearings and prevent rusting.

Choosing Pump Location

The following recommendationsmay be helpful when choosing thebest location for your pump.

a. Locate the pump as close tothe liquid source as practical so theintake pipe is short and direct witha minimum of elbows, fittings andvalves.

b. Place the pump in a location sothe unit is accessible for inspectionduring operation as well as formaintenance operations involvingremoval and disassembly.

c. The Wilfley slurry pump has nosuction and, therefore, must be setbelow the supply so the material tobe pumped will flow into it bygravity. A hopper bottom, intakesump or tank should be provided.Intake pipe from sump should slopeand be as short as possible. Donot pump from one pump directlyinto a second pump, but provide an intake sump for each one.

Foundation

The foundation should be sufficientto absorb any vibration and to forma permanent, rigid support for thebaseplate. A concrete foundationon a solid base is satisfactory.Foundation bolts of the proper size should be embedded in theconcrete located as indicated on the outline drawing.

Allow ample room for changing ofpump parts because these partsare sometimes very heavy. Supportthe piping independently and besure to consider thermal expansionand loading.

The discharge line should havesufficient spring to allow thedischarge keeper to be raisedabout one half inch.

Intake pipe may be connected toeither or both sides of the pump andneed not be disturbed to change thepumping parts or the bearing unit.

Piping

Both suction and discharge pipesshould be supported independentlynear the pump so when the flangebolts are tightened no strain will betransmitted to the pump casing orintake chamber.

Discharge Piping

A valve should be installed in thedischarge line to prevent fluid fromflowing back through the pumpwhen it is shut down. The valveshould block the discharge lineduring maintenance.

Suction Piping

Care should be taken in sizing and locating suction piping toprevent cavitation. A valve shouldbe installed in the intake line toprevent fluid from flowing into the pump when it is shutdown.

• Installation and Start Up

• Safety Precautions

• Service and Maintenance

• Spare Parts Ordering

• Sump Recommendations

• Recommended Oils

• Assembly Instructions

Wilfley

M o d e l K

Model K Assembly

General Installation

Operating and General Servicing Recommendations

Pre-starting Recommendations

Please perform the followingoperations before attempting tostart your pump.

a. Visually check all main andauxiliary piping to insure that allconnections have been properlymade.

b. Check oil level by removing OilFiller Cap. Oil should be one quarterinch above bottom of filler elbow.Do not overfill, oil will leak alongshaft if too high.

c. Rotate the pump by hand.There should be some drag due tothe Check Valve being engaged. Ifunable to rotate the pump, checkwear adjustment.

d. Check voltage, fuse, starteramperage ratings and frequency onthe motor nameplate against theelectrical supply characteristics.

e. Check the rotation of the motorby momentarily starting the motorwith the motor disconnected fromthe pump assembly. Direction ofrotation must be as shown by thearrow on the case and the directionshown by the pedestal cap. Startingor running the pump backwards willcause damage to internal parts.

Starting

Before starting the pump, it isadvisable to have the pump casingand suction line filled with liquid. Itis normal to have the dischargevalve momentarily closed when thepump is started, since much lesshorsepower is required under theseconditions.

DO NOT OPERATE THE PUMP IN ADEAD-HEADED (NO FLOW)CONDITION.

Shutdown

Close the suction valve anddischarge valve, and then stop thepump.

General Servicing

Your Wilfley Model K pump isdesigned to provide long and

trouble-free service with a minimumof maintenance. It is recommendedthat the pump be inspected atregular intervals. It is alsosuggested that a service record bekept for the pump.

Every time your pump isreassembled, the Follower PlateGasket (K3A) should be replaced.

Motor

Please refer to the manufacturer’smotor manual for recommendedservice instructions. It isrecommended that the motor bewell ventilated when in operation.

a. Flow, Pressure andTemperature:

All flow pressure and temperaturegauges should be monitored toensure that the pump is operatingwithin specified limits. If theframe bearing temperatures aremonitored, this temperatureshould not exceed 220 F (104 C).

b. Oil Level:

Check the oil level by removingthe Oil Filler Cap. Oil should beone quarter inch above bottom offiller elbow. Do not over fill, oilwill leak along shaft if level is toohigh. Add clean oil when needed.Oil should be checked to insurelubricant is clean.

c. Visual:

Periodic visual inspection shouldbe made of the pump and itsinstallation. This inspectionshould include the following:

1. All mounting supports shouldbe secure.

2. All external nuts, bolts andfittings should be tight.

3. All suction and dischargepiping should be secure.

4. All surfaces and joints shouldnot show signs of leakage.

Flow, Pressure and Temperature (a)

Oil Level (b)

Visual (c)

Noise/Vibration

Oil Change

UponInstallation

After First

Start-UpEveryWeek

EveryMonth

Every 3

Months

Periodic Servicing

The following table contains recommended service checks that should beperformed on a periodic basis.

Pump Storage

If the pump is inoperative for a longperiod of time, it is recommendedthat the pump be flushed anddrained to minimize corrosion. It isalso advisable to drain the lines andcase if there is any possibility offreezing.

The pump shaft should be rotatedonce a week to lubricate thebearings and prevent rusting.

Lubricating Oil RequirementsBearing Bearingtemperature temperaturebelow 82°C above 82°C(180°F) (180°F)

ISO Grade VG 68 VG 100

Approx. SSU300 470

@ 38°C (100°F)

DIN 51517 C68 C100

Kinem. viscosity

at 40°C (105°F) 68 100

mm2.sec

Lubrication, Clearance Settings and Sump Considerations

Acceptable Oils

Chevron GTS oil 68Exxon Teresstic EP 68Gulf Gulf Harmony 68Mobil Mobil DTE 26 300

SSU 38°C (100°F)Phillips Mangus Oil Grade

315Phillips MM motor oil SAE

20-20WPhillips HDS motor oil SAE

20-20W

Lubrication:

A. Use recommended oils (seetable).

B. After running the pump for oneweek, drain and fill with new oil.

C. Change oil every three monthsunless oil becomes contaminatedsooner. Should the oil appearcontaminated flush with clean oil.

Clearance Settings

CAUTION: Never adjust theclearance while the pump isrunning.

a. The Draw Bolt adjustmentcontrols the clearance between theRunner and the Follower Plate andtakes care of any drop in efficiencyor capacity caused by wear.

b. To make the clearanceadjustment; loosen the PedestalCap (K28); loosen the Outer DrawBolt Nut (K11A); move the LongCylinder (K16) to rear of the pumpby turning the Inner Draw Bolt Nutuntil the Runner (K25) touches theFollower Plate (K3). Back off theInner Draw Bolt Nut 1/4 turn formetal pumps and 1/3 to 1/2 a turnfor rubber pumps. Tighten and lockinto position by tightening the OuterDraw Bolt Nut and Pedestal Cap.

c. Rubber parts should beadjusted during installation. Re-adjustment is seldom needed.Adjust pumps with a rubber Case, ametal Runner and a metal FollowerPlate as metal pumps. All othercombinations of metal and rubberparts should be adjusted as rubberpumps.

d. Excessive wear to metal partswill result from adjustments madetoo often. As a general rule, adjustclearance not more than four timesduring the life of the Follower Plate.

e. All adjustments should be madewhile turning the pump over byhand. Caution should be taken notto rotate the pump in the wrongdirection.

Sump Design Considerations

Refer to the Hydraulic Institute’srecommendations under IntakeDesign.

Be sure the sump providesadequate volume to accommodatesurges.

Sloped sides should taper towardthe suction for proper flow.

Pump suction lines should be equalto or greater than the pump suctionnozzle.

A.R. Wilfley & Sons would be happyto help you with Sump sizing anddesign. Feel free to contact us at:

A.R. Wilfley & SonsP.O. Box 2330Denver, CO 80201(303) 779-1777800-525-9930fax (303) 779-1277

www.wilfley.com

Safety Precautions

Like all machinery, centrifugalpumps can be dangerous if usedimproperly. Any of the following listof misuses may result in a pumpwhich does not function properly. A pump functioning improperly may be a hazard and could cause damage or injury.

For maximum safety and reliabilityuse only factory supplied parts andclosely follow all maintenance andoperating recommendations andinstructions.

Use a Wilfley pump only for thespecific application for which it wassold and in the manner prescribedby A.R. Wilfley & Sons. The Wilfleypump must be operated at thecorrect speed for the properfunctioning of the centrifugal seal and Check Valve.

Do not change the pumpingconditions or installation of a Wilfley pump without consultingA.R. Wilfley & Sons first to ascertainif the pump is capable of handlingthe new conditions and/or fluid.

It is not possible to list all pumpmisuses. Therefore, the following list is not meant to be complete andis provided only as a guide and asan example of the types of misusewhich can damage a pump andcause injury. The list will also give a good idea of the kinds of misusesthat void any and all warranties.

1. Do not run a pump with the discharge valve closed.

2. Do not run a pump in thereverse direction.

3. Do not start a pump that is“windmilling” in the reverse directiondue to fluid flowing back down the discharge pipe and into thesuction pipe.

4. Do not continue to operate apump when there are indicationsthat something is rubbing, bindingor knocking.

5. Do not continue to run a pump which gives an indication ofoverheating.

6. Do not operate a pump with the belt or coupling guard removed.Make sure the guard fits snuglyaround the belts or couplings sothere are no openings.

7. Do not operate a pump if the governor weights are of different sizes.

8. Do not operate a pump that is vibrating, surging or makingabnormal noise.

9. Do not work on a pump unlessthe drive system is locked out andthe pump is disconnected from thedrive system.

10. Do not connect the pump to the drive system without firstchecking to see that the drivesystem is running in the correct direction.

11. Do not rely on the factory’salignment of pump and the drivesystem.

12. Do not put a cold liquid in a hotpump or a hot liquid in a cold pump.

13. Do not hit a pump with any object.

14. Do not use worn or faulty parts.

15. Do not stick hands, arms, legs or any other objects into thedischarge or intake, or any otheropening of a pump.

16. Do not weld attachments to the pump.

17. Do not apply external heat to the pump.

18. Do not lift the pump by the case.

19. Do not examine a pump without using proper eye and face protection.

20. Some materials deteriorate withtime. If your pump has been out ofoperation for more than 3 months,please contact A.R. Wilfley & Sonsfor more information concerning itssuitability for service.

Parts Ordering

Please include the serial number of your pump when ordering spareparts. With this number we candetermine and duplicate the originalconfiguration and materials ofconstruction.

Special Service

The Check Valve assembly is veryimportant to the efficiency of your K pump. Its parts and seals mustbe in good working order. Parts areoften replaced unnecessarily due tounfamiliarity. The reverse is alsotrue, many times parts are notreplaced that should be. For thesereasons we provide the service offactory rebuilding.

Your Wilfley K pumps and seals may be returned to the factory atany time, for complete overhaul and repair. Each pump is completelydisassembled and any worn orinoperable parts are replaced. Wecharge the standard price for partsand a minimal reassembly fee.

The utilization of this service providesyou with almost instantaneous pumprepair at an economical price. Theunits are overhauled and returned toyou quickly.

Please contact A.R. Wilfley & Sonsor any of our representatives at any time, concerning our pumps orparts. You can be assured that wewill do all within our power to insure your total satisfaction with Wilfley products.

Safety Precautions Spare Parts Ordering

A.R. Wilfley & Sons, Inc.P.O. Box 2330Denver, Colorado 802011-303-779-17771-800-525-9930fax: 1-303-779-1277www.wilfley.com

1. Attach Intake Chamber to the Frame Base andinstall the Case Stud Bolts.

2. Insert the Frame Packing Ring into the groove onthe front face of the Intake Chamber.

3. Bolt the Blind Intake Flange onto the IntakeChamber. Note: Wilfley Model K pumps will acceptintake from either, or both sides of the pump.

4. Install Gland Stud Bolts and the Draw Bolt on theback of the Intake Chamber.

5. Heat Bearings and slide them onto the BearingShoulders on the Shaft. Lock into place with LockNuts and Lock Washers.

6. Install Shaft and Bearing Assembly into the Long cylinder.

7. Place Oil Seals into the Front and Rear BearingCaps and attach to the Long cylinder. Note: Front OilSeal is designed to keep impurities from reaching thebearings. Mount Seal with spring forward.

8. Attach short cylinder to the Long Cylinder. Note:dished edge of the Short Cylinder must line up with theDraw Bolt Fitting on the Long Cylinder.

9. Install the Oil Filler Elbow assembly and the Oil DrainPlug on the Long Cylinder.

10. Place the Check Valve Spring into the Check ValveSpider and cover it with the Check Valve PackingDiaphragm Plate.

11. Compress the Check Valve Packing DiaphragmPlate and attach the Check Valve Weights with thecotter pins and washers.

12. Install the Check Valve Setscrews and the CheckValve Sleeve O-Ring on the Check Valve Sleeve.

13. Slide the Check Valve Spider Assembly onto theCheck Valve Sleeve, secure with screws. Position theCheck Valve Packing Diaphragm on the Check ValvePacking Diaphragm Plate.

14. Slide the Check Valve Assembly onto the Shaft andtighten the Setscrew in the notch on the Shaft.

15. Attach short Cylinder Head to Short Cylinder andsecure with screws.

16. Place Gland Ring over the Short Cylinder. 17. Install Bearing Unit in rear bore of Intake Chamber.Attach Pedestal Cap and Draw Bolt Nut and Washer.Do not tighten at this time.

18. Install two layers of Gland Packing Ring into rearbore of the Intake Chamber and bolt the Gland Ring tothe Intake Chamber. Attach Short Cylinder Cover. Donot tighten at this time.

19. Install Die Ring and secure with screws. TheExpeller portion of two-piece runners must be installedat this time.

20. Install Frame Protecting Ring, Follower Plate andfollower Plate Gasket into Front Bore of IntakeChamber.

21. Slide Expeller O-Ring Runner onto the Shaft andsecure with Runner Bolt. (Expeller O-Ring for two-pieceRunner only). Note: C-Clamp may be useful in holdingthe Follower Plate in position.

22. Attach Case and secure with washers and nuts. 23. Set Runner Clearance. For specific instructionsrefer to page 5 of the Model K Operating Handbook.Tighten Pedestal Cap and Gland Stud Nuts.

24. Attach Crane Arm Assembly. 25. Attach Discharge Keeper Assembly.

This pictorial guide is to be used only as a generalreference in relation to the K Operating Handbook. The photos in this guide relate to the 3 inch metal K pumps. Parts may not be exactly the same forpumps of other sizes or materials.

Please refer to exceptions as noted in the K OperatingHandbook. Before working on your pump, please readall instructions and warnings carefully, and observe allsafety precautions.

Assembly Instructions

Wilfley

M o d e l K3 Inch, Metal (Two-Piece Runner)