MODELS CPM18-40 AND CPM24-30
Contents
1. gt FO PMR Ol oojoo w c cw 9 23833 273 10 08 14 18 40ST PLUNGER PUMP PARTS LIST 25905 004 304 SST RIGHT HAND CPM 18 40STL PLUNGER PUMP PARTS LIST 25905F014 304 SST LEFT HAND CPM18 40SST PLUNGER PUMP PARTS LIST 25905F001 316 SST RIGHT HAND CPM 18 40SSTL PLUNGER PUMP PARTS LIST 25905F011 316 SST LEFT HAND 05737A021 Description OIL FILL CAP 14946 003 Description WASHER SEAL 3 8 17995A001 OIL FILL NIPPLE 110 000110 201 17360A014 O RING OIL GAUGE 19101 008 SCREW HEX 3 8 x 7 8 25929A000 25929A001 PACKING NITRILE amp KEVLAR FOR CPM 18 40ST AND CPM 18 40STL PACKING VITON 06077C000 LID 25935A000 RING BOTTOM ADAPTER 060898000 GASKET 10519A002 FITTING 19101A013 SCREW HEX 3 8 x 1 a N 10414B001 CAP BEARING CLOSED 05011A027 GASKET SHIM 003 GREEN 05011A028 GASKET SHIM 015 PINK 05674A019 BEARING CONE 17481A001 PLUG MAGNETIC 1 2 06076D000 CASE GEAR 27300B000 LINK 06074D011 CRANKSHAFT 06109A010K BEARING PAIR 2 3 8 06116A000 104148002 PIN amp WR CAP BEARING OPEN 05710A004 SEAL OIL 05818A077 WASHER 1 4 17515B001 CROSSHEAD amp PISTON ROD 05030A020 WASHER 1 4 02. NOTE 1 1 2 NPT SUCTION BOTH SIDES 4 MTG SLOTS Remove screw Do not adjust DIA STANDARD SHAFT EXTENSION screw for leveling Screw is SHOWN RIGHT HAND used for shipping only 11 23833A273 10 08 14 STANDARD LIMITED WARRANTY CENTRIFUGAL amp RECIPROCATING PUMPS Pentair Myers warrants its products against defects in material and workmanship for a period of 12 months from the date of shipment from Pentair Myers 18 months from the manufacturing date whichever occurs first provided that such products are used in compliance with the requirements of the Pentair Myers catalog and technical manuals During the warranty period and subject to the conditions set forth Pentair Myers at its discretion will repair or replace to the original user the parts that prove defective in materials and workmanship Pentair Myers reserves the right to change or Improve its products or any portions thereof without being obligated to provide such a change or improvement for prior sold and or shipped units Seals piston cups packing plungers liners and valves used for handling clear fresh nonaerated water at a temperature not exceeding 120 F are warranted for ninety days from date of shipment All other applications are subject to a thirty day warranty Accessories such as motors engines and auxiliary equipment are warranted by the respective manufacturer and are excluded in this standard warranty Under no circumstance will Pentair Myers b
3. gt PENTAIR MYERS MODELS CPMT 6 40 AND CPM24 30 CPM SERIES INDUSTRIAL PUMPS INSTALLATION AND SERVICE MANUAL NOTE To the installer Please make sure you provide this manual to the owner of the equipment or to the responsible party who maintains the system Part 23833A273 2014 Pentair Ltd 10 08 14 INSTRUCTIONS CAUTION Positive displacement pumps must have a proper size and operable type of pressure regulating valve or pressure relief valve piped into the discharge line This is mandatory to prevent damage to pump and piping or possible injury to personnel Do not install any valves or shut off devices in the bypass line from pressure regulator tank or supply CAUTION All pumps should be installed level For mobile applications the maximum angle of intermittent operation should be no more than 5 in any one direction CALIFORNIA PROPOSITION 65 WARNING AWARNING This product and related accessories contain chemicals known to the State of California to cause cancer birth defects or other reproductive harm It is recommended to install a pulsation dampener in the discharge line to smooth out pressure pulse This can protect pump parts and piping for longer life and quieter operation BELT DRIVE With belt drives the pulley on both the engines and pump should be located as close as possible to bearing to reduce bearing and shaft bending loads Make sure that all bolts nuts set screws an
4. housing back into retainer Check gasket replace if damaged An assembly thimble should be used on small end of the piston rod to expand sealing edge as it is pushed on The thimble should be machined from high carbon steel and polished on the exterior to reduce possibility of seal lip damage SERVICING CRANKCASE PARTS To remove the crankcase you do not need to remove the cylinder body from the crankcase Remove the connecting link caps from the connecting links and push the free links toward the cylinder end as far as possible Take off the bearing caps and pull the crankshaft through the bearing opening REPLACING CRANKSHAFT AND SHIMMING BEARINGS Remove bolts from both bearing caps Carefully remove bearing cap shims and O rings and discard shims and O rings Inspect and clean shim surfaces on both bearing caps and crankcase Slide crankshaft into the crankcase and rest bearings on the sides of the crankcase Place 045 shim on the drive side bearing cap and place 4 38 O D O ring onto the bearing cap Cover key way slot and slide the bearing cap with oil seal over the drive shaft Tighten the cap screws Install the non drive side cap without shims or O ring Secure with cap screws and tighten alternately so the crankshaft can be fully rotated by hand to seat the tapered roller bearings Measure the shim gap adjacent to each of the screws by inserting a flat feeler gauge in the gap until it bottoms out The required shi
5. the pump is allowed to freeze by not being drained the freezing may crack the cylinder body walls in almost any location If the crack occurs on the suction valve or cylinder portion of the body it may allow a small amount of air to enter on the suction stroke and cause noisy operation or a decrease in pumping capacity If the crack develops in the walls between the cylinder cavities or discharge valve cavity it may allow the water to flow from one cavity to the adjacent cavity and cause uneven displacement The holes in the gun or nozzle discs are continually subject to wear because of the high velocity of the liquid through the holes If the holes become worn they may allow a higher rate of discharge than the pump is able to provide then a drop in pressure will be noticed This can quickly be checked by reducing the number of nozzles or guns while watching the amount of overflow from the pressure regulator If there is considerable overflow it is an indication that the regulator valve is worn rather than the gun or nozzle disc Suction surge arresters should be installed on the suction line of reciprocating pumps 1 1 2 or 2 can be used A standing height of 12 15 will be sufficient with the top end closed by an ordinary pipe cap Water may accumulate in the pump crankcase from two sources leakage of the plunger cups or an accumulation of condensation moisture inside the crankcase due to changes in weather or the rep
6. 003 GREEN 05011A028 GASKET SHIM 015 PINK 05674A019 BEARING CONE 17481A001 PLUG MAGNETIC 1 2 06076D000 CASE GEAR 27300B000 LINK 06074D011 CRANKSHAFT 06109A010K BEARING PAIR 2 3 8 06116A000 PIN CRK amp WR 10414B002 CAP BEARING OPEN 05710A004 SEAL OIL 05818A077 WASHER 1 4 a N 175158001 CROSSHEAD amp PISTON ROD 05030A020 WASHER 1 4 05028A002 SCREW 259276000 COVER 25937E000 ADAPTER 25934E000 BODY CYLINDER 1018 STEEL 25931A000 SEAT VALVE 25934E002 BODY CYLINDER 1018 STEEL 25936A000 VALVE FOR CPM 24 30 25930A000 SPRING SUCTION VALVE 23188A002 FITTING 25930A001 SPRING DISCHARGE VALVE 06106A034 SCREW SKT HD 10 amp 1 2 25932A000 CAP 24959A002 HOUSING 25933B000 CLAMP 22835A004 CUP U METRIC 22 19105A042 SCREW HEX 5 8 x 1 3 4 05059A435 GASKET 25938A001 SET SCREW SKT DRV 5 8 18 06120A000 SPRING 24793A006 MALE ADAPTER FOR CPM 24 30 24958A001 RETAINER 24793A005 MALE ADAPTER 05059A052 GASKET 056594125 STUD 5 8 18 3 1 4 248944007 WASHER FOR CPM 24 30 19103A008 SCREW HEX 1 2 x 1 3 4 24894A003 WASHER 056594120 STUD 5 8 18 x 8 1 2 26709A000 WASHER WEDGE 19109A047 NUT 050224043 PLUG PIPE 1 NPT 05022A016 PLUG PIPE 1 1 2 NPT 056594133 STUD PLUNGER 92 WC
7. 5028A002 SCREW 25927C000 COVER 25937E000 ADAPTER 25934E004 25934E001 BODY CYLINDER 304 SST FOR CPM 18 40ST AND CPM 18 40STL BODY CYLINDER gt 92 23188 002 FITTING 06106A034 SCREW SKT HD 10 amp 1 2 24959A002 HOUSING 22835A004 CUP U METRIC 22 05059A435 GASKET 06120A000 SPRING 24958A001 RETAINER 05059A052 GASKET 24894A003 23833A273 10 08 14 WASHER 10 259288000 259288001 PLATE FOR 18 40ST AND CPM 18 40STL PLATE 24899A004 24899A008 SEAL FOR CPM 18 40ST AND CPM 18 40STL SEAL 25926B200 PLUNGER 1 1 4 DIA 05876A158 05876A205 O RING FOR CPM 18 40ST AND CPM 18 40STL O RING 10649A132 23265161275 TUBE OF FT FOR CPM 18 40ST AND CPM 18 40STL TUBE OF FT 05675A018 BEARING CUP 05059A418 WASHER GASKET 05876A224 O RING 05876A159 05876A204 05876 206 O RING O RING FOR CPM 18 40ST AND CPM 18 40STL O RING 25931A000 SEAT VALVE 25936A000 VALVE 25930A000 SPRING SUCTION VALVE 25930A001 SPRING DISCHARGE VALVE 25932A000 25932A001 CAP FOR CPM 18 40ST AND CPM 18 40STL CAP 25933B000 CLAMP 19105A042 SCREW HEX 5 8 x 1 3 4 25938A001 SET SCREW SKT DRV 5 8 18 24
8. 793A005 MALE ADAPTER 05659A125 STUD 5 8 18 x 3 1 4 19103A008 SCREW HEX 1 2 x 1 3 4 05659A120 STUD 5 8 18 x 8 1 2 26709A000 WASHER WEDGE 19109A047 NUT 05022A043 PLUG PIPE 1 NPT 05022A012 05022A016 PLUG PIPE 1 1 2 NPT FOR CPM 18 40ST AND CPM 18 40STL PLUG PIPE 1 1 2 NPT w 05659 133 STUD PLUNGER 18 40 24 30 BODY Rugged cast iron crankcase serves as oil reservoir Removable CRANKSHAFT Rotates in either direction Automotive type heat cover section for treated alloy steel PLUNGER ASSEMBY easy service Solid stainless steel stud VALVE ASSEMBLIES with TECH 23 Stainless steel seats Plastic acetal copolymer K MAIN BEARINGS LIRL N valves Tapered roller N bearings RAN 2 bis SUCTION am DISCHARGE CONTINUOUS SPLASH OPENINGS LUBRICATION Threaded In either rotation for easy direction connections LILI ILL LD CROSSHEADS BODY CP 18 40ST 304 SST 18 4055 316 SST Heavy duty iron Pony QONNECTING LINKS CPM 18 40 and rods are axially threaded replaceable bronze CPM 24 30 High and pinned polished Strength Steel stainless steel gs 1 3 8 DIA SHAFT 5 16 SQ x 2 KEY 1 NPT DISCHARGE BOTH SIDES 3 7 64 3 9 32 10 5 16 10 7 8 12 1 8 24 23 32 16 7 8
9. THEREOF PERSONAL INJURY AND OR PROPERTY DAMAGE MAY RESULT FROM IMPROPER INSTALLATION PENTAIR MYERS DISCLAIMS ALL LIABILITY INCLUDING LIABILITY UNDER THIS WARRANTY FOR IMPROPER INSTALLATION PENTAIR MYERS RECOMMENDS INSTALLATION BY PROFESSIONALS Some states do not permit some or all of the above warranty limitations or the exclusion or limitation of incidental or consequential damages and therefore such limitations may not apply to you No warranties or representations at any time made by any representatives of Pentair Myers shall vary or expand the provision hereof gt PENTAIR MYERS MYERS APLEX SERIES 1101 MYERS PARKWAY ASHLAND OHIO USA 44805 419 289 1144 WWW FEMYERS COM Warranty Rev 12 13
10. a complete unit If either of these parts becomes worn it is necessary to replace both the crosshead and piston rod Under normal conditions a crosshead will not wear nor will the bore of the crankcase wear to the extent that replacement will be required A clearance of 002 to 004 is standard for the crosshead RECONDITIONING CRANKSHAFTS When crank pins are slightly damaged they can sometimes be reconditioned for further use This can be done with emery cloth and polishing until all ridges are completely removed The final polishing operation should be performed by using a very fine emery cloth 23833A273 10 08 14 This procedure be followed only where the amount of sanding does not reduce the normal diameter of the crank pin Worn or corroded crank pins can be ground and polished down to 030 under the size when the crank was new The undersize bearing halves are made especially for turned down crankshafts If the surface is badly damaged the crankshaft can often be salvaged by metalizing the crank pins regrinding and polishing to the original diameter When assembling bearings on the crankshaft an oil seal expander thimble should be used at the end of the shaft A thimble of this type will cause the lip of the oil seal to gradually expand up to the shaft diameter allowing it to slip onto the shaft without turning or damaging the seal in any way A slight nick or cut in the lip can damage a seal enough that it will n
11. ay occur at the joints of the suction line piping at the gate valve in the suction line at the gasket sealing the cap on the sediment chamber by a crack in the suction wall of the cylinder body or by air drawing past the packing on the suction stroke if the packing is badly worn 23833A273 10 08 14 If the pressure regulator internal bypass valve is worn it will allow too much of the pump capacity to be bypassed and recirculated back to the tank By examining the flow from this valve with the discharge turned on it can be determined whether or not the valve is worn heavy flow continues when the discharge is turned on it is usually a good indication of a worn valve and should be replaced Worn plunger cups valves or valve seats will cause a severe drop in pump capacity pressure Worn plunger cups are detected by water leakage past the cups and should be replaced immediately Water getting into the pump crankcase will cause severe corrosion of the bearings Worn valves can only be detected by visual examination of each valve assembly Abrasive liquid will cause wire cuts which begin as a very small groove but increase rapidly once the valve starts to leak through this groove If the valve plates are replaced as soon as they start to show this cutting action it will prevent the valve seat from becoming cut in a similar manner Pump cylinder bodies withstand an extreme amount of shock and pulsation while in operation but if
12. d keys are properly tightened On multiple V belt drives a complete set of new belts should be installed when making a replacement STARTING PUMP Fill pump crankcase with recommended oil SAE to the level mark on oil saber Replace all drain plugs in pump and piping Inspect tank to be sure that no foreign material is in tank or suction line Fill the tank at least half full or connect suction to water supply Open valve if present in suction line Avoid prolonged dry operation which may cause excessive wear on plunger packing Be sure that an operating pressure gauge is located in the discharge line Use heavy duty liquid filled pulsation free pressure gauge Make sure all valves including spray gun or nozzles are open in discharge line Spray gun may be anchored to discharge back into tank Completely back off the pressure adjusting device on pressure regulating valve Check pressure rating for pulsation dampener pressure regulator and pipe fitting to make sure working pressure is not over maximum pressure rating After starting close discharge valve or spray gun slowly while watching pressure gauge to make sure relief valve or unloader is operating properly Adjust relief valve or unloader to desired pressure Cycle 23833A273 10 08 14 nozzles or gun on and off to be sure that pressure adjustment and regulator operation are satisfactory Nozzle capacity should not exceed 90 of pump capacity for satisfactory regulator o
13. e responsible for the cost of field labor travel expenses rented equipment removal reinstallation costs or freight expenses to and from the factory or an authorized Pentair Myers service facility This limited warranty will not apply to defects or malfunctions resulting from failure to properly install operate or maintain the unit in accordance with the printed instructions provided 0 to failures resulting from abuse accident or negligence to normal maintenance services and parts used in connection with such service 9 to units that are not installed in accordance with applicable local codes ordinances and good trade practices if the unit is moved from its original installation location f if unit is used for purposes other than for what it is designed and manufactured g to any unit that has been repaired or altered by anyone other than Pentair Myers or an authorized Pentair Myers service provider h to any unit that has been repaired using non factory specified OEM parts Warranty Exclusions PENTAIR MYERS MAKES NO EXPRESS OR IMPLIED WARRANTIES THAT EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF PENTAIR MYERS SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSE Liability Limitation IN EVENT SHALL PENTAIR MYERS BE LIABLE OR RESPONSIBLE FOR CONSEQUENTIAL INCIDENTAL OR SPECIAL DAMAGES RESULTING FROM OR RELATED IN ANY MANNER TO ANY PENTAIR MYERS PRODUCT OR PARTS
14. eated heating and cooling of the pump Pumps used consistently running for a considerable period of time 23833A273 10 08 14 14 12 13 14 15 16 17 to heat the oil and other working parts will not normally accumulate water by condensation Replace the plunger cups as soon as they start to leak Worn connecting link bearings are caused by unusual or adverse operating conditions and are seriously affected by corrosion if water is present in the crankcase They will wear out from overheating if adequate oil is not provided in the crankcase It is recommended to drain clean and refill with new oil prior to any storage period Replace bearings as soon as any damage is discovered to avoid possible damage to crankshaft Low oil in the crankcase can quickly cause failure of the pump s power end and result in extensive repairs Oil level should be checked periodically during normal operation and during all maintenance work A foaming mixture will sometimes have the same effect as a small air leak in the suction line This is because various quantities of the foam are drawn through the suction line into the pump disrupting the normal flow of water Pressure regulators and unloading valves may become sluggish in action due to the plunger sticking or fitting too tightly in its cylinder This may happen by an accumulation of chemicals collecting in and around the plunger or due to excessive corrosion of the plunge
15. eing stuck on the seat or by valves sticking due to extreme corrosion A pump will not prime readily if someone has tampered with the valve springs causing them to exert undue pressure of the valve plates against the valve seats A gate valve is sometimes installed in the suction line between a tank or pressure line and the pump sediment chamber It will shut off the supply source in order to clean the sediment chamber or to perform pump repairs If this valve is partially or fully closed it will interfere with the flow of water to the pump suction This may cause severe knocking and vibration of the pump because the water cannot flow into the cylinder cavities fast enough 3 sediment chamber should be installed in the suction line between the gate valve and the pump suction The strainers in the sediment chambers are sufficient to allow a free flow of liquid to the pump If the strainers become severely clogged they will completely stop the flow of liquid to the pump Any plunger pump operating at a high pressure will not perform properly nor quietly if a mixture of air and water is allowed to enter the pump suction A small air leak in the suction line will cause the pump to knock and vibrate excessively by allowing the pump to draw a certain amount of water mixed with air on each stroke of the piston A large air leak will cause the pump to lose prime after which it cannot be reprimed until the air leak is stopped Air leaks m
16. ft bearings will reduce bearing life require more power and generate more heat while insufficient preload may cause a knock timed with the crankshaft rotation Check for loose bolts on the crankshaft end caps or adjust shims to obtain proper bearing preload 23833A273 10 08 14 18 40 AND 24 30 23833A273 10 08 14 8 CPM18 40 PLUNGER PUMP PARTS LIST 25905F000 STEEL RIGHT HAND 18 40L PLUNGER PUMP PARTS LIST 25905F010 STEEL LEFT HAND CPM 24 30 PLUNGER PUMP PARTS LIST 25905F012 RIGHT HAND Description 14946A003 WASHER SEAL 3 8 18922A009 PACKING V RING amp NITRILE FOR CPM 24 30 25929A000 PACKING NITRILE amp KEVLAR 24794A005 RING BOTTOM ADAPTER FOR CPM 24 30 25935A000 RING BOTTOM ADAPTER 10519A002 FITTING 25928B004 PLATE FOR CPM 24 30 25928B000 PLATE 24899A002 SEAL FOR CPM 24 30 24899A004 SEAL 25926B211 PLUNGER 1 1 4 DIA FOR CPM 24 30 25926B200 PLUNGER 1 1 4 DIA 05876A158 O RING 23265161275 TUBE OF FT FOR CPM 18 40L 10649A132 TUBE OF FT FOR CPM 18 40 05675A018 BEARING CUP 05059A418 WASHER GASKET 05876A224 O RING 05876A029 O RING FOR CPM 24 30 05876A159 O RING 05876A204 O RING Description 05737 021 OIL FILL 17995A001 OIL FILL NIPPLE 110 000110 201 O RING 17360A014 OIL GAUGE 19101A008 SCREW HEX 3 8 x 7 8 06077C000 LID 06089B000 GASKET 19101A013 SCREW HEX 3 8 x 1 10414B001 CAP BEARING CLOSED 05011A027 GASKET SHIM
17. head Rotate crankshaft until plunger is flush with seal housing Slide seal housing forward to clear plunger and remove Remove seals and clean seal housing Install new seal Lubricate with waterproof grease and repeat steps to install plunger seal VALVE SERVICE When servicing valves always replace O rings Remove bolts and valve clamp Remove valve cover on top of fluid access to valve components Suction and discharge valve will show a wear pattern on seating surface but need not be replaced unless extreme wear cracks or erosion is present on valve All valves and seats are interchangeable but it is recommended to put them back in the same order as taken out if not renewing the components To replace valve components clean bores to remove corrosion or burrs and lubricate and replace O rings in bottom of bore Lubricate valve seat and replace O ring On the valve make sure the spring is inserted squarely before putting assembly into fluid end Repeat for the discharge valve insert valve cover and secure REPLACING PISTON ROD SEALS The rod seal assembly contains two seals and two oil seals with lips facing power end The fluid end must be removed before the oil seal can be replaced Unscrew Allen screws and place into the other two tapped holes Gradually screw them in to push oil seal housing off the retainer Assemble new seals in oil seal housing An assembly thimble should be used on end of crosshead rod for sliding oil seal
18. m thickness for this cap is equal to the average of the two gap measurements plus 005 constant Remove the two bolts and cap and place the correct shim thickness on this cap If the required shim thickness does not match an 003 increment of a green shim round up or down to the nearest 003 shim increment Remove non drive side bearing cap and place the 4 38 O D O ring on the cap and reinstall Tighten the screws as the crankshaft is fully rotated by hand to seat the bearings and so no significant binding results SERVICING CONNECTING LINKS When the connecting link bearings are worn standard replacement bearing inserts can be installed in the connecting links These bearings should not be tampered with or changed in size at the time of assembly Do not change the size of the link by filing or grinding the faces When reinstalling the links on the crankshaft be sure to place the oil holes upward for proper lubrication When installing new bushings for the wrist pin these bushings should be reamed to proper size after pressing into the link Do not ream D bushings RECOMMENDED TORQUE foot pounds FASTENER LOCATION Link Bearing Caps 25 Crankshaft End Caps 20 Capscrew Holding Piston 20 Packing Assembly to Piston Rod 20 Valve and Cylinder Cover Clamps 80 Capscrew Fluid End to Crankcase 1 2 50 5 8 85 CROSSHEAD AND PISTON RODS Repair parts for the crosshead and piston rod are supplied as
19. ot retain the oil properly 23833A273 10 08 14 THE PUMP MUST INSTALLED WITH PRESSURE RELIEF VALVE IN DISCHARGE LINE TROUBLESHOOTING Pump fails to build pressure with discharge closed Failure to hold pressure with discharge open Pump is nois Pump gets hot Pressure gauge shows abnormal fluctuation Regulator chatter POSSIBLE CAUSE OF PROBLEM Pump not primed Valve closed in suction line Suction line or sediment chamber clogged Air leak in suction line Pump packing or valves badly worn Pump cylinder body cracked Holes in discs are too large Need suction surge arrester 10 Water in crankcase 11 Worn connecting link bearings 12 Lack of oil in crankcase 13 Foaming mixture 14 Regulator plunger sticking 15 Unloader stuffing box nut too tight 16 Foreign matter under pump valve 17 Discharge surge arrester inoperative 18 Loose piston rod 19 Improper preload of crankshaft bearings COU amp BY Go Po Pressure regulator valve badly worn or not properly adjusted Explanation of the Service Chart Pump priming is usually not necessary when the pump is installed correctly However there are certain conditions which may make it necessary to prime the pump to get the pumping action started Priming will be required when it is impossible for the plunger to displace the air in the pump and replace it with water This can be caused by a high suction lift the valves b
20. peration Avoid freezing by draining all water from pump and system in cold weather There is a 3 8 NPT drain plug for each cylinder chamber SUGGESTED MAINTENANCE SCHEDULE Check oil level Daily Drain amp change oil 300 hrs Drain at operating temperature to prevent contamination from settling Inspect piston packing and spacer rings 500 hrs Inspect frequently for leakage piston packing is allowed to drip in order to cool and lubricate packing Inspect valves and springs 500 hrs Replace if cracks and heavy wear are present Inspect connecting link bearing inserts 1000 hrs Replace at first signs of fatigue or wear to prevent damage to crankshaft Inspect crankshaft tapered roller bearings and piston stud 2000 hrs Replace if there is any pitting on the seal surface or if the surface is rough LUBRICATION Pump Fill crankcase with 2 quarts of oil Maintain oil level between the high and the low level marks on bayonet oil gauge inserted through crankcase cover Add extra quart for crankcase speeds under 300 rpm Drain oil from crankcase after first 30 hours of operation Refill with proper oil Check oil levels regularly Change oil immediately if water droplets are found on bayonet gauge SERVICE Disconnect electrical leads to motor or remove spark plug leads on engine before proceeding PLUNGER SEAL SERVICE Remove the three seal lubricating lines and nuts holding the fluid end and slide
21. r parts To check this condition remove and clean the plunger and cover the parts with a waterproof grease before assembling The stuffing box nut on the unloading valve lifting post should not be tightened to severely grip or bind the packing on the post Tighten this nut just enough to prevent leakage and chatter The pressure regulator and unloading valves may chatter or vibrate excessively due to an unstable operation from nozzling in the high or low capacity range of the regulator or unloader The range should be at least 50 to 90 of pump capacity With unloader valves nozzle capacity should be at least 20 and not exceed 90 of pump capacity If foreign matter becomes lodged between the pump valve and valve seat a drastic drop in capacity and considerable surge or pulsation will occur in the discharge line Examine each valve if this occurs When a pump is used for a long period of time a waterlogged discharge surge could cause pulsation at the discharge The suction should be opened to the atmosphere to allow air to be drawn through the pump to recharge the surge arrester Do this with the pressure release valve open so the pump operates at no pressure 18 19 Noisy pump operation be caused by loose plunger rod in the crosshead This noise usually has a regular cadence timed with each stroke of the plunger When this occurs always replace both the rod and the crosshead Increased preload to the cranksha
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