2SF, 2SFX, 4SF SERVICE MANUAL
Contents
1. LI Higher temperature fluids tend to vaporize and require positive heads LI When using an inlet supply reservoir size it to provide adequate fluid to accommodate the maximum output of the pump generally a minimum of 6 10 times the GPM however a combination of system factors can change this requirement provide adequate baffling in the tank to eliminate air bubbles and turbulence install diffusers on all return lines to the tank INLET LINE SIZE should be adequate to avoid starving the pump I Line size must be a minimum of one size larger than the pump inlet fitting Avoid thick walled fittings tees 90 degree elbows or valves in the inlet line of the pump to reduce the risk of flow restriction and cavitation 11 The line MUST be a FLEXIBLE hose NOT a rigid pipe and reinforced on SUCTION systems to avoid collapsing 11 The simpler the inlet plumbing the less the potential for problems Keep the length to a minimum the number of elbows and joints to a minimum ideally no elbows and the inlet accessories to a minimum LI Use pipe sealant to assure air tight positive sealing pipe joints INLET PRESSURE should fall within the specifications of the pump LJ Optimum pump performance is obtained with 20 PSI 1 4 BAR inlet pressure With adequate inlet plumbing most pumps will perform with flooded suction Maximum inlet pressure is 75 PSI 5 25 BAR Negative suction up to 2 PSI 0 14 BAR can be achieved with optimum plumbing2. 0 1 5 120 44 670 240 56 16 4 2 470 150 40 12 3 8 1 7 330 110 66 17 8 39 11 5 0 550 200 37 52 210 107 150 36 12 2 8 330 86 28 6 7 1 9 520 130 43 10 3 0 RESISTANCE OF VALVES AND FITTINGS Nominal Equivalent Length of Standard Pipe in Feet Pipe 180 Tee Tee Size i Gate Globe Angle 45 90 Close Thru Thru Inches Valve Valve Valve Elbow Elbow Ret Run Branch 1 2 3 33 3 4 4 41 5 62 1 4 7 40 1 2 8 63 2 067 1 35 61 5 30 8 2 59 5 55 12 30 3 08 11 60 2 469 1 62 73 5 36 8 3 09 6 61 14 70 3 68 13 20 3 068 2 01 91 5 45 8 3 84 8 23 18 20 4 57 16 40 4 026 2 64 120 0 60 0 5 03 10 80 23 90 6 00 21 60 Arriving at a total line pressure loss consideration should then be given to pressure loss created by valves fittings and elevation of lines If a sufficient number of valves and fittings are incorporated in the system to materially affect the total line loss add to the total line length the equivalent length of line of each valve or fitting TYPICAL RESERVOIR TANK RECOMMENDED 6 TO 10 TIMES SYSTEM CAPACITY Supply Line Bypass Line from regulator or unloader Dia of pipe Level Sensing l ppe Device Flexible Hose to Pump Bypass Line from regulator or FILTER unloader A Minimum Two Baffles MIN 4 Sealed at Bottom Handy Formulas to Help You Q How can I find the RPM needed to get specific GPM Gallons Per Minute w
3. Idstein Germany Phone 49 6126 93030 Fax 49 6126 930333 e mail catpbumps t online de www catpumps de 1 2 Fig B SERVICING THE PUMPING SECTION DISASSEMBLY OF THE DISCHARGE VALVE ASSEMBLY Disconnect all plumbing and remove unloader for ease in servicing NOTE CEE models do not come with standard unloader Inspect oil for proper level presence of water or discoloration and replace as needed With a standard M6 allen wrench remove the six 6 2SF or eight 8 4SF socket Head Screws from the manifold Remove the outer screws first then the center screws Fig A With a soft mallet tap the back side of the Discharge Manifold from alternate sides to maintain alignment and avoid damage to the plungers Fig B Grasp the Discharge Manifold from the from underside and gradually lift mani fold while you pull away from the Crankcase The Adapter Spacers may stay with either the Discharge or Inlet Manifold By inserting two opposing screwdrivers between Spacer and manifold you can easily pry them out of the Discharge Manifold Fig C If they stay in the Inlet Manifold gently work them up and down as you pull away from the Inlet Manifold Fig D The valve assemblies are in the Discharge Manifold ports and will fall out when manifold is turned over A complete valve assembly includes Retainer Spring Valve and Seat Fig E NOTE On X versions the Valve and Spacer are one piece NOTE The GZ models use the
4. standard SF Valve Kit DISASSEMBLY OF THE SEAL ASSEMBLY 1 2 Fig D Next remove the Inlet Valve Assembly from the exposed plunger rod ends in cluding Cotterpin Nut Washer Spring Spacer and Inlet Valve Fig F Grasp the Inlet Manifold from the front and underside and pull to remove from Plunger Rods Fig G Carefully examine back side of Lo Pressure Seal before removing from manifold as it will be damaged during removal If worn insert screwdriver into D of seal and pry out Exercise caution to avoid damage to the Inlet Manifold Fig H Fig E 4 S 6 Next press ceramic Plunger with thumb or soft tool from back side of Inlet Manifold 2SF The Hi Pressure Seal may stay with the plungers or remain in the Inlet Manifold If on the plungers slide off by hand If in the manifold use a reverse pliers to remove 4SF The V Packing and Adapters may stay with the plungers or remain in Inlet Manifold If on the plungers slide off by hand If in the manifold use a reverse pliers to remove Then remove Seal Retainers from Crankcase by grasping tab with pliers and pulling out Examine Crankcase Oil Seal to determine if Crankcase servicing is needed Fig REASSEMBLY OF SEAL ASSEMBLY i 2 3 Examine Seal Retainers and replace if worn or damaged Install on Plunger Rod and press into Crankcase with tab out Place Inlet Manifold on work surface with Crankcase side up Lubricate new Lo P
5. 2SF 2SFX 4SF SERVICE MANUAL 2SF 2SFX 2SFCEE PLUNGER MODELS 2SF10 2SF20 2SF22 2SF25 2SF29 2SF30 2SF35 CAUTION CAT PUMPS are positive displacement pumps Therefore a properly designed pressure RELIEF OR SAFETY VALVE MUST BE INSTALLED in the discharge piping Failure to install such a relief 4SF PLUNGER MODELS 4SF32ELS 4SF40ELS 4SF45ELS 4SF50ELS 4SF30GS1 4SF35GS1 4SF40GS1 4SF45GS1 4SF45GS 118 4SF50GS1 mechanism could result in personal injury or damage to the pump or system CAT PUMPS does not assume any liability or responsibility for the operation of a customer s high pressure system INSTALLATION AND START UP INFORMATION Optimum performance of the pump is dependent upon the entire fluid system and will be obtained only with the proper selection installation of plumbing and operation of the pump and accessories SPECIFICATIONS Maximum specifications refer to individual attributes It is not implied that all maximums can be performed simultaneously If more than one maximum is considered check with your CAT PUMPS supplier to confirm the proper performance and pump selection LUBRICATION Fill crankcase with special CAT PUMP Hydraulic oil per pump specifications DO NOT RUN PUMP WITHOUT OIL IN CRANKCASE Change initial fill after 50 hours running period Thereafter change oil every 3 months or 500 hour intervals MOTOR SELECTION Identify the pump shaft size 2SF ES and ELS models have 5 8 ele
6. Examine Adapter Spacer O Rings and replace if worn Lubricate and install O Rings and Back up Rings on both front and rear of the Adapter Spacer Fig M rh O O1 ae aad Fig Examine the Valve Retainers for scale build up or wear and install into each Discharge Manifold port with tab down into the manifold chamber Replace worn or damaged Springs and place into Retainers Examine Valve and Seats for pitting grooves or wear and replace as needed Place Valves over Springs with concave side down Place Valve Seats on Valves with concave side down NOTE On 2SF X models Seat and Adapter are one piece Lubricate O D of Adapter Spacer and insert smaller I D into Discharge Manifold ports Snap into position Exercise caution not to cut or pinch o rings Carefully guide Discharge Manifold with Spacers over Plunger Rod ends and press into Inlet Manifold Replace Socket Head Screws and torque to specifications Use torque se quence chart Fig N If oil was not changed be certain oil is to mark on Oil Gauge before resuming operation 2SF Torque Sequence T nant 6 4 6 4 2 8 2 4SF Torque Sequence Fig N Torque diagonally in order shown The outer four 4 screws then center screws all hand tight Then repeat series to specifications in torque chart SERVICING THE CRANKCASE SECTION While Inlet Manifold Plungers and Seal Retainers are removed examine Crankcase Seals for wear Check oil level and
7. ant A Desired RPM Desired GPM x Rated RPM Rated GPM Q I have to run my pump at a certain RPM How do figure the GPM FII get A Desired GPM Desired RPM x Rated GPM Rated RPM Q Is there a simple way to find the approximate horsepower Pil need to run the pump A Electric Brake GPM x PSI Standard 85 Horsepower Required 1460 Mech Efficiency Q What size motor pulley should use Pump RPM Consult Motor Engine RPM Engine Mfr Q How do I calculate the torque for my hydraulic drive system A Torque ft lbs 3 6 A Pump Pulley Outer Diameter x RPM Avoid Cavitation Damage s a De ET a P One or several of the conditions shown in the chart below may contribute to cavitation in a system resulting in premature wear system downtime and unnecessary operating costs CONDITION SOLUTION Inadequate inlet e Increase line size to the inlet port or one size line size larger e Install C A T Tube e Move pump closer to fluid supply Water hammering fluid acceleration deacceleration Rigid Inlet Plumbing e Use flexible wire reinforced hose to absorb pulsation and pressure spikes Excessive Elbows in eKeep elbows to a minimum and less than 90 Inlet Plumbing Excessive Fluid Temperature e Use Thermo Valve in bypass line e Do not exceed pump temperature specifications e Substitute closed loop with baffled holding tank e Adequately size tank for frequent or high volume
8. ate 3 8 16 Pump to Electric Motor 3 8 16 Mounting 4SF Adapter Plate to Gas Engine Pump to Adapter Plate Pump to Electric Motor 1 2 Hex 90 9 16 Hex 110 9 16 Hex 110 3 8 16 1 2 13 1 2 13 9 16 Hex 3 4 Hex 3 4 Hex TECHNICAL BULLETIN REFERENCE CHART No Subject 043 Plunger Pump LPS and HPS Servicing All Plunger Models 055 Removing Pumps from Gas or Electric Motor 2SF 2SFX 2X 4SF 4HP 5DX 057 Set Screw and Hardened Key 4SF 065 2SF 4SF Higher Performance S S Inlet Valves 2SF 4SF 070 2SF 4SF Maximum Performance 25F 4SF 073 Hi Temp Pumps SFR 5FR 2SF 074 Piston and Plunger Pump Torque Chart All Models 075 4SF Sleeved Pumps 4SF Models INLET CONDITION CHECK LIST Review Before Start Up Inadequate inlet conditions can cause serious malfunctions in the best designed pump Surprisingly the simplest of things can cause the most severe problems or go unnoticed to the unfamiliar or untrained eye REVIEW THIS CHECK LIST BEFORE OPERATION OF ANY SYSTEM Remember no two systems are alike so there can be no ONE best way to set up a system All factors must be carefully considered INLET SUPPLY should be adequate to accommodate the maximum flow being delivered by the pump LJ Open inlet shut off valve and turn on water supply to avoid cavitating pump DO NOT RUN PUMP DRY LI Avoid closed loop systems without a Thermo Valve high temperature protection LI Avoid low vapor pressure and high viscosity fluids
9. bypass e Pressure feed high temperature fluids e Properly ventilate cabinets and rooms Air Leaks in Plumbing eCheck all connections e Use Teflon tape Agitation in Supply e Size tank according to pump output Tank Minimum 6 10 times system GPM e Baffle tank to purge air from fluid and separate inlet from discharge e Verify viscosity against pump specifications before operation e Elevate fluid temperature enough to reduce viscosity e Lower RPM of pump e Pressure feed pump e Increase inlet line size e Perform regular maintenance or use clean filters to monitor build up e Use adequate mesh size for fluid and pump specifications High Viscosity Fluids Clogged Filters DIAGNOSIS AND MAINTENANCE PROBLEM PROBABLE CAUSE SOLUTION e Low Pressure e Worn nozzle e Replace nozzle of proper size e Air leak in inlet plumbing e Use PTFE liquid or tape on all connections e Pressure gauge inoperative or not e Check pressure with new gauge and replace as needed registering accurately e Relief valve stuck partially plugged or improperly e Clean and reset relief valve to system pressure and adjusted correct by pass Service valve on seal replacement schedule Worn seat or valves Replace with valve kit Use covered reservoir Do not pump abrasive fluids Initiate a more frequent service cycle Check supply tank for contamination Worn seals Abrasives in pumped fluid Replace with Seal Kit Install and maintain proper filter Severe
10. cavitation inadequate water supply Check line size use reinforced flexible hose at pump inlet and stressful inlet conditions eliminate elbows Increase line size Clean filter Check water temperature Install Thermo Valve in by pass Clean inlet and discharge valves and replace with kit as needed Replace hose Check connections Tighten or replace Use correct belt type and length 2SF SL only Inlet filter clogged or improperly sized Fouled or dirty inlet or discharge valves Leaky discharge hose Belt slippage e Pulsation pump runs Restricted inlet or air entering inlet plumbing Clean filters as needed Check fittings and use PTFE liquid or extremely rough tape for airtight connection Check line size and flow to pump pressure low Stuck inlet or discharge valve Clean or replace Valve Kit Check supply tank for contamination Worn Hi Pressure Seals Relace with Seal Kit Initiate more frequent service cycle Foreign particles in the inlet or discharge valve Check for smooth surfaces on inlet and discharge valve seats Replace with kit Check supply tank for contamination Install and regularly clean filter Do not pump abrasive fluids Worn or pitted inlet and or discharge valves Water leakage from Worn V Packings and Lo Pressure Seals Replace with Seal Kit check inlet pressure and temperature under the manifold Use Thermo Valve in by pass line inlet regulator in inlet line Slight leakage Worn adapter Examine adapter w
11. conditions contact factory LI After prolonged storage pump should be purged of air to facilitate prim ing Disconnect any discharge port and allow fluid to pass through pump INLET ACCESSORIES are designed to protect against over pressuriza tion control inlet flow contamination or temperature and provide ease of servicing LI A shut off valve is recommended to facilitate maintenance LI A stand pipe can be used in some applications to help maintain a posi tive head in the inlet line LJ Inspect and clean inlet filters on a regular schedule 11 A pressure gauge is recommended to monitor the inlet pressure and should be mounted AS CLOSE TO THE PUMP INLET as possible Short term intermittent cavitation will not register on a standard gauge I All accessories should be sized to avoid restricting the inlet flow 1 All accessories should be compatible with the solution being pumped to prevent premature failure or malfunction BY PASS TO INLET Care should be exercised when deciding the method of by pass from control valves I It is recommended the by pass be directed to a baffled reservoir tank with at least one baffle between the by pass line and the inlet line to the pump Li The 2SF and 4SF come standard with a Regulating Unloader to handle by pass fluid directed to the inlet line of the pump If other than standard valve is used exercise caution to use proper flexible hose and adequate diameter A PRESSURE REDUCING VALVE may be
12. ctric shaft GES models have 3 4 electric shaft GS GZ models have 3 4 gas shaft 4SF ELS models have 1 1 8 electric shaft GS models have a 1 gas shaft The motor or engine driving the pump must be of adequate horsepower to maintain full RPM when the pump is under load Select the electric motor from the Horsepower Requirement Chart according to required pump discharge volume and maximum pressure at the pump Consult the manufacturer of gas or diesel engine for selection of the proper engine MOUNT THE PUMP All 2SF and 4SF are direct drive and do not need to be mounted to another surface Only the solid shaft 2SF22SLS with attachment brackets needs to be mounted to a rigid horizontal surface An uneven mounting surface will cause extensive damage to the pump base Use the correct belt make sure pulleys are aligned Excessive belt tension may be harmful to the bearings To minimize piping stress use appropriate flexible hose to inlet and discharge ports Before mount ing pump to motor or gas engine apply PN 6106 antiseize lubricant to pump shaft Refer to Technical Bulletin 055 for instructions on removing pump from gas engine or electric motor LOCATION If the pump is used in extremely dirty or humid conditions it is recommended pump be enclosed Do not store or operate in exces sively high temperature areas or without proper ventilation INLET CONDITIONS Refer to complete Inlet Condition Check List i
13. for crankcase servicing Increase line size use flexible hose to pump inlet install properly sized baffled supply tank e Frequent or premature failure of the packings Scored plungers Over pressure to inlet manifold Replace plungers Reduce inlet pressure per specifications Abrasive material in the fluid being pumped Install proper filtration at pump inlet Excessive pressure and or temperature of fluid Check pressure and inlet fluid temperature Be sure they are being pumped within specified range Install Thermo Valve in by pass line Running pump dry DO NOT RUN PUMP WITHOUT WATER PN 30036 Rev F 5 99
14. for evidence of water in oil Rotate Crankshaft by hand to feel for smooth bearing movement Examine Crankshaft Oil Seal externally for drying cracking or leaking Consult factory or your local distributor if Crankcase service is required Fig L Fig M PREVENTATIVE MAINTENANCE CHECK LIST Check Daily Clean Filters Oil Level Quality Oil Leaks Water Leaks Belts Pulley Plumbing Initial Oil Change OilChange o S o o e Seal Change Jo o o Soo Soo o o Vale Change J o To To Jo fo o x If other than CAT PUMPS special multi viscosity ISO68 oil is used change cycle should be every 300 hours Each system s maintenance cycle will be exclusive If system performance decreases check immediately If no wear at 1500 hours check again at 2000 hours and each 500 hours until wear is observed Remember to service the regulator unloader at each seal servicing and check all system accessories and connections before resuming operation can aaa Pataca cee a es ee oS ee ee ae E Se ee ee ee ee a a Le ___s TORQUE CHART Pump Item Thread Tool Size Torque Part No in lbs ft lbs Nm M10 Hex Phil 50 40 6 25082 M10Hex Phil 50 40 6 25082 M6 Allen 115 30941 M10 Hex 55 25082 M28 Oil Gauge Tool 45 3 6 44050 Outer Bearing Case Screw M6 Inner Bearing Case Screw M6 Manifold Screw M8 Plunger Rod Nut M6 Bubble Oil Gauge Mounting 2SF Adapter Plate to Gas Engine 5 16 24 Pump to Adapter Pl
15. he Barrier Slinger for wear and replace as needed Install the Barrier Slinger with the concave side facing away from the Crankcase Lubricate the Plunger Rod O Ring to avoid cutting during installation Install the Back up Ring first then the O Ring into the groove on the Plunger Rod Next install the Sleeve with the tapered end facing out Gently press towards the Plunger Rod shoulder until flush with the Barrier Slinger Carefully install Inlet Manifold over Plunger Rod ends and slowly press into Crankcase Examine Inlet Valve and replace if worn Inlet valves cannot be reversed if worn The S S Inlet Valves may be lapped if not badly worn Install the S S Inlet valves with square edges towards the plungers round edges towards the discharge Install the Nylon Inlet Valve with ridged side towards the dis charge NOTE The Hi Temp 2SF models use a Nylon Inlet Valve order individual parts not standard Inlet Valve Kit Examine Spacers for wear and replace as needed Install Spacer on each Plunger Rod with smaller O D towards inlet valve Examine Springs for damage or fatigue and replace as needed Place on Plunger Rods Install Washers next with concave side towards Inlet Manifold Next install Nuts and torque to specifications On 2SF and 4SF models always install new Cotterpins and turn ends to secure in position NOTE X version does not use Cotterpin REASSEMBLY OF THE DISCHARGE VALVE ASSEMBLY Fig J
16. hen servicing Seals and replace as needed Initiate more frequent service cycle Frequent or premature failure of seals and Excessive heat from prolonged by pass Abrasive in fluid Install Thermo Valve Replace seals with kit Install inlet filter packings e Scored plungers e Replace plungers Review fluid specifications e Excessive inlet pressure e Install pressure reducing valve e Running pump dry e Check inlet fluid supply line for adequate size Clean filters e Oil leak between e Worn crankcase oil seals e Check and replace crankcase oil seals when doing seal servicing crankcase and pumping section Worn crankshaft oil seal Bad bearing Oil leaking around crankshaft Replace damaged oil seals Replace bearing Excessive play in the end of the crankshaft Worn bearing Replace bearing e Water in crankcase Humid air condensing into water inside Change oil every 3 months or 500 hour intervals using special of the crankcase CAT PUMP Premium Grade Oil case PN 6100 or bottle PN 6107 other approved oil every month or 300 hours Continued operation with worn seals and packings Initiate more frequent service cycle Change oil Crankcase oil seals leaking or seals installed Replace seals Follow proper installation procedure Contact backward Cat Pumps supplier for crankcase servicing e Loud knocking noise from pump Worn bearing connecting rod or crankshaft Stressful inlet conditions Consult Cat Pumps supplier
17. n this manual before starting system DO NOT STARVE THE PUMP OR RUN DRY DISCHARGE PLUMBING OPEN ALL VALVES BEFORE STARTING SYSTEM to avoid deadhead overpressure condition and severe damage to the pump or system A reliable Pressure Gauge should be installed near the discharge outlet of the high pressure manifold This is extremely important for adjusting pressure regulating devices and also for proper sizing of the nozzle or re stricting orifice The pump is rated for a maximum pressure this is the pressure which would be read at the discharge manifold of the pump NOT AT THE GUN OR NOZZLE All 2SF and 4SF Pumps come complete with a Pressure Regulating Unloader NOTE Except CEE Models A Pressure Regulator or Unloader Valve must be installed to prevent over pressurizing the pump in the event the discharge or downstream plumbing becomes plugged or is turned off Severe damage to the pump will result if this con dition occurs without a relief valve in the line CAUTION Failure to in stall such a safety valve will void the warranty on the pump Discharge regulating devices should be at minimum pressure set ting at start up On systems over 2000 PSI SECONDARY PROTEC TION is recommended by installing a pop off valve safety valve or rup ture disc START SYSTEM WITH ALL VALVES OPEN OR IN THE LOW PRESSURE SETTING Use PTFE liquid sparingly or tape to connect accessories or plumbing Exercise caution not to wrap tape beyond the last
18. needed on the inlet line BETWEEN THE BY PASS CONNECTION AND THE INLET TO THE PUMP to avoid excessive pressure to the inlet of the pump It may also be necessary to use a THERMO VALVE in the by pass line to monitor the temperature build up in the by pass loop to avoid premature seal failure 11 A low pressure FLEXIBLE CLOTH BRAID not metal braid hose should be used from the by pass connection to the inlet of the pump 1 If standard unloader valve is not used check the pressure in the by pass line to avoid over pressurizing the inlet HOSE FRICTION LOSS PRESSURE DROP IN PSI PER 100 FT OF HOSE x WITH TYPICAL WATER FLOW RATES Water Hose Inside Diameters Inches camin 14 one se w2 sej 3a 1 16 5 2 54 20 180 60 380 120 220 320 410 600 370 At a fixed flow rate with a given size hose the pressure drop across a given hose length will be directly proportional A 50 ft hose will exhibit one half the pressure drop of a 100 ft hose Above values shown are valid at all pressure levels WATER LINE PRESSURE LOSS PRESSURE DROP IN PSI PER 100 FEET Water Steel Pipe Nominal Dia Brass Pipe Nominal Dia Copper Tubing O D Type L GPM 1 4 3 8 1 2 3 4 1 1 4 1 2 1 4 3 8 1 2 3 4 1 1 4 1 2 1 4 3 8 1 2 5 8 3 4 7 8 8 5 1 9 6 0 1 6 120 13 2 9 1 0 30 7 0 2 1 20 56 1 8 400 45 10 3 4 1 3 60 14 4 5 1 1 40 11 36 94 20 6 7 2 6 100 28 9 0 2 230 50 17 6 1 220 62 21 500 120 40 15 320 90 30 180 56 22 270 90 21 6 2 1 6 190 62 16 5
19. ressure Seal and press into position with garter spring down Be certain the seal is seated squarely on the shoulder on the inlet mani fold chamber Fig J Place Inlet Manifold on work surface with Crankcase side down larger D ports up 4SF Place new Female Adapter into Inlet Manifold chamber with v groove facing up Carefully examine the Plungers for scoring or cracks and replace if worn 2SF Lubricate Ceramic Plungers and new Hi Pressure Seals Press the plunger into the seal and position seal in middle of plunger NOTE Place the deeper recessed end of the plunger into the seal from the metal back side NOTE The Hi Temp 2SF models use a special Hi Pressure Seal and Hi Temp Seal Kit 4SF Lubricate Ceramic Plungers and new V Packings Press Plunger into the V Packings and position in the middle of plunger Fig K NOTE The deeper recessed end of the plunger should face the same direction as the v groove on the V Packing Fig L Fig F Fig G 11 12 13 14 15 Fig H Insert the Plungers into the manifold ports 4SF with v groove facing up Press into position using the larger I D end of Discharge Valve Spacer Note the S versions of the 4SF pumps have a replaceable Sleeve Examine the Sleeve for grooves or scale build up and replace as needed Grasp the Sleeve by hand and pull from the Plunger Rod Examine the O Ring and Back up Ring under the Sleeve for cuts or wear and replace Examine t
20. thread to avoid tape from becoming lodged in the pump or accessories This condition will cause a malfunction of the pump or system NOZZLES A worn nozzle will result in loss of pressure Do not adjust pressure regulating device to compensate Replace nozzle and reset reg ulating device to system pressure PUMPED FLUIDS Some fluids may require a flush between opera tions or before storing For pumping fluids other than water contact your CAT PUMPS supplier STORING For extended storing or between use in cold climates drain all pumped fluids from pump and flush with antifreeze solution to prevent freezing and damage to the pump DO NOT RUN PUMP WITH FROZEN FLUID Products described hereon are covered by one or more of the following U S patents 3558244 3652188 3809508 3920356 3930756 and 5035580 World Headquarters CAT PUMPS 1681 94th Lane N E Minneapolis MN 55449 4324 Phone 612 780 5440 FAX 612 780 2958 e mail sales catpumps com www catpumps com International Inquiries FAX 612 785 4329 e mail intlsales catpumps com nA F The Pump with Nine Lives CAT PUMPS U K LTD 1 Fleet Business Park Sandy Lane Church Crookham Fleet Hampshire GU13 OBF England Phone Fleet 44 1252 622031 Fax 44 1252 626655 N V CAT PUMPS INTERNATIONAL S A Heiveldekens 6A 2550 Kontich Belgium Phone 32 3 450 71 50 Fax 32 3 450 71 51 e mail cpi catpumps be CAT PUMPS DEUTSCHLAND GmbH Buchwiese 2 D 65510
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