C40-20 Industrial Pump Instructions, Service Manual and Parts List
Contents
1. Pentair Water C40 20 Industrial Pump Instructions Service Manual and Parts List 23833A632 FLUID END BODY SUCTION CYLINDERS Rugged cast gray iron DISCHARGE Tapered stainless steel liners crankcase serves as oil OPENINGS with ceramic oxide coating reservoir Removable cover Threaded for easy section for easy service connections PISTON ASSEMBLY Solid stainless steel stud pressure ring spring retainer and cap screw BODY CRANKSHAFT High strength ductile Rotates in either direction iron Automotive type heat treated alloy steel VALVE amp onmosa gt HI SS CAPS Mpp SAN Buna N O rings and WIL D el E back up ring Leen ZZ Uer L e BESS X gerere MAIN BEARINGS ROS i Ree Se Y SN Tapered roller OS VARAS Ww bearings E VALVE ASSEMBLIES All stainless steel Spring loaded valves hardened seats CONTINUOUS SPLASH LUBRICATION In either rotation direction PACKING CROSSHEADS CONNECTING LINKS Nitrile with cotton fabric Geer Sa Iron i Cast ductile iron with Multi lip V ring supported EE replaceable bronze threaded and pinned bearings polished stainless steel by brass follower DIMENSIONS 22 16 123 16 7 1 NPT Discharge 8 16 X 9 30 Key way Oil Fill L mal NN 4 10 4 O S Oil Drain 2 NPT Suction 4 Slots 9 14 wide x 15 16 long for 1 2 bolts 23833A632 INSTRUCTIONS CA2. Foaming mixture 23833A632 EXPLANATION OF THE SERVICE CHART A Pump priming is usually not necessary when the pump is installed correctly However there are certain unusual conditions which may make it necessary to prime the pump to get the pumping action started Priming will be required under conditions where it is impossible for the piston to displace the air in the pump and replace it with water This could be caused by a high suction lift high from the water supply to the pump the valves being stuck on the seat such as after pumping a sticky fluid or it might be caused by valves sticking due to extreme corrosion of the valves and seats A pump will not prime readily if someone has tam pered with the valve springs causing them to exert undue pressure of the valve plates against the valve seats When the pump appears to need priming this condition can be checked by pouring water into the cylinder body through one of the valve cap openings or into the pump discharge opening at the same time operating the pump to work the water into the cylinder and valve passages Frequently a gate valve is installed in the suction line between a tank or pressure line and pump sediment chamber This valve is usually installed in the line to shut off the supply source for cleaning sediment chamber or for pump repairs If this valve is closed or even partially closed it will interfere with the flow of water to the pump suction to such an ext
3. Make sure all valves including spray gun or nozzles are open in discharge line Spray gun may be anchored to discharge back into tank 7 Completely back off pressure adjusting device on pressure regulating valve 8 Check pressure rating for pulsation dampener pressure regulator and pipe fitting to make sure working pressure is not over maximum pressure rating 23833A632 B Starting the Unit 1 After starting close discharge valve or spray gun slowly while watching pressure gauge to make sure relief valve or unloader is operating prop erly 2 Adjust relief valve or unloader to desired pres sure See regulator instructions 3 Cycle nozzles or gun on and off to be sure that pressure adjustment and regulator operation is satisfactory NOTE Nozzle capacity should not exceed 90 of pump capacity for satisfactory regulator operation 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 Operation Check oil level Drain amp change oil SAE 30 Inspect piston packing and spacer rings Inspect valves and springs Inspect connecting link bearing inserts Inspect crankshaft tapered roller bearings Inspect piston stud 1 Drain at operating temperature to prevent contami nation from setting 2 Inspect frequently for leakage piston packing is allowed to drip in order to cool and lubricate pack ing Replace
4. these bushings should be reamed to proper size C after pressing into the link NOTE D bushings are NOT to be reamed after assembly 23833A632 Figure 5 RECOMMENDED TORQUE FASTENER TORQUE LOCATION Foot Pounds Link Bearing Caps Crankshaft End Caps om 20 Cap Screw Holding Piston Packing Assembly to Piston Rod 25 200 Valve and Cylinder Cover Plate om Cap Screw Fluid End to Crankcase 1 2 50 5 8 80 CROSSHEAD AND PISTON RODS Repair parts for the crosshead and piston rod are supplied only as 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 crank case wear to the extent that oversize crossheads will be required If extreme wear does occur it will be due to severe damage from the lack of oil or a fairly large metal object scoring the crosshead bore A clearance of 002 to 004 is standard for the crosshead The parts can wear until considerably more clearance than this exists before harmful operation will occur RECONDITIONING CRANKSHAFTS When only a very small amount of damage has oc curred on the crank pins such as small surface grooves cut part way around the bearing surface the crank pins can sometimes be reconditioned for further use This can be done with emery cloth and polishing until all ridges are completely removed The final po
5. a similar manner and keep the cost of replacement parts to a minimum Pump cylinder bodies must withstand an extreme amount of shock and pulsation while the pump is in operation If the pump is allowed to freeze due to not being drained the freezing may crack the cylinder body walls in almost any location If the crack should occur 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 rob the pump of its effective displacement This will not cause noisy operation but will reduce the pump capacity and may show up as a drop in pressure when the discharge is open The holes in gun or nozzle discs are continually subject to wear because of the high velocity of the liquid through the holes Naturally they wear much faster if there is any abrasive or solid material in the liquid If the holes become worn too much they may allow a higher rate of discharge than the pump is able to provide and a drop in pressure will be noticed This can quickly be checked by reducing the number of nozzles or guns and at the same time watching the amount of overflow from the pressure regulator If there is considerable overflow even though a drop in pressure has been not
6. covered with a waterproof grease before assembling N In some cases there is a tendency for the pressure regulator valves to chatter or vibrate excessively This is an indication of unstable operation due to nozzling in the high or low capacity range of the regulator On systems using pressure regulator valves the nozzling requirements should be at least 50 and not exceed 90 of pump capacity Due to nozzle disc wear the system requirements may exceed the 90 limit resulting in cycling or ham mering of the regulator This can readily be checked by replacing the worn discs with new discs O If a large piece of foreign matter becomes lodged between a pump valve and valve seat or if some thing of this kind becomes wedged in so that it prevents the valve from operating normally we can expect drastic drop in capacity and considerable surge or pulsation will be noticed in the discharge line To correct a condition of this kind it is usually necessary to examine each valve in the pump until the offending condition is located The use of clean liquid and seeing that the suction strainer is in proper condition will prevent trouble of this kind P Noisy pump operation will sometimes be caused by a piston rod being loose in the crosshead This will only become evident after the rod becomes so extremely loose that some end motion can be found between the piston rod and crosshead A noise of this kind usually has a regular cadence timed with e
7. 4 out of slots Remove puller 3 and repeat to remove remainder of cylinder liners OANDABRWN A CYLINDER LINER REMOVAL TOOL KIT 17123B001K 3 17123B000 M1666A000 4 17124A000 L K Wt Yt CYLINDER LINER Figure 1 CYLINDER lt BODY INSTALLATION Reasonable care and judgment should be used when installing the new tapered cylinder liner Clean out any accumulation of loose rust or corrosion in tapered cylinder Inspect o ring Replace it if damaged Insert liner in position by hand and drive into position firmly but not excessively with a wood block and mallet Never use a hand or hydraulic arbor press to install cylinder liner It is possible to shrink the liner REPLACING PISTON ROD SEALS EI OA N Fluid End Side ZM W ES ZE NW WD Figure 2 The rod seal assembly see Figure 2 contains two oil seals with lips facing power end The oil seal can be replaced without taking the fluid end off by removing the cylinder and piston to allow access for oil seal housing Unscrew two Allen screws and place into the other two tapped holes Gradually screw them in to push oil seal housing off the retainer After assembling new seals in oil seal housing an assembly thimble should be used on end of crosshead rod for sliding oil seal housing back into retainer Check gasket replace if damaged An assembly thimble should be used on small end of the piston rod
8. PONSIBLE FOR CONSE QUENTIAL INCIDENTAL OR SPECIAL DAMAGES RESULTING FROM OR RELATED IN ANY MANNER TO ANY MYERS APLEX PRODUCT OR PARTS THEREOF PERSONAL INJURY AND OR PROPERTY DAMAGE MAY RESULT FROM IMPROPER INSTALLATION MYERS APLEX DISCLAIMS ALL LIABILITY INCLUDING LIABILITY UNDER THIS WARRANTY FOR IMPROPER INSTALLATION MYERS APLEX RECOMMENDS INSTALLATION BY PROFESSIONALS Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you This Warranty gives you specific legal rights and you may also have other rights which vary from state to state In the absence of suitable proof of this purchase date the effective date of this warranty will be based upon the date of manufacture A amoo Myers APLEX 1101 Myers Parkway Ashland Ohio 44805 1969 419 289 1144 FAX 419 289 6658 1 08 23833A632
9. UTION 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 to tank or supply It is recommended to install a pulsation dampener in discharge line to smooth out pressure pulse This can protect pump parts and piping for longer life and quiet operation CORRECT CORRECT INCORRECT INCORRECT PULLEY LOCATION ON PUMP AND MOTOR SHAFT BELT DRIVE With belt drives pulley on both engine and pump should be located as closely as possible to bearing to reduce bearing and shaft bending loads Make sure that all bolts nuts set screws and keys are properly tightened STARTING PUMP A Before Starting 1 Read all instructions carefully 2 Fill pump crankcase with recommended oil SAE 30 to level mark on oil saber 3 Replace all drain plugs in pump and piping 4 Inspect tank to be sure that no foreign material is in tank or suction line 5 Fill 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 piston packing Be sure that an operating pressure gauge is located in discharge line Use heavy duty liquid filled pulsation free pressure gauge 6
10. ach stroke of the piston When this condition occurs it is always necessary to replace both the piston rod and the crosshead because the two parts are threaded and pinned into a single unit Q The crankshaft main bearings are held in place by the end bearing caps If bearing cap retaining bolts should become loosened the bearing can shift which may cause bearing to run exceptionally hot UNUSUAL CONDITIONS WHICH MAY CAUSE TROUBLE R If the V belts have a tendency to wear rapidly it may be due to having the belt tightener pulley adjusted too far into the belt throwing a reverse bend in the belt where it passes over the pulley If very much reverse angle seems necessary to keep the belt tight other provisions should be made for tighten ing such as placing shims under the pump base or otherwise spreading the drive centers enough to take up the belt length On multiple V belt drives a complete set of belts should be installed when making a replacement Further all the belts in one set should be checked for length and accurately matched to avoid placing an undue load on any one belt The synchronized belt can deliver higher torque with narrower belt The sprocket is thus narrower which results in less bending movement on main bearing and crankshaft 23833A632 Model C40 20 Parts List i 2 3 4 5 S 7 SA Gaskel Shim 003 Green 6 Tenue 8B Gaskel Shim 005 Pink 4 _05011A028 A 10 11 Cap Bearing Cl
11. d top and bottom 180 apart torque the 2 cap screws at 60 in lb 5 ft lb DO NOT USE TORQUE WRENCH WITH LARGE FT LB SCALE MAY NOT BE ACCURATE Do this three times to properly seat the tapered roller bearings C Measure adjacent to the cap screws the shim gap remaining between the bearing cap and the crank case D The required shim thickness for this cap is equal to the average gap measurement plus 005 constant E Insert correct shim thickness under left bearing cap and tighten all 6 cap screws and torque to 20 ft lbs 240 in Ib Ref green shim is 003 thick F Rotate crankshaft to ensure no binding as a result of shimming SERVICING CONNECTING LINKS When the connecting link bearings are worn but the crankshaft is in good condition standard replacement bearing inserts can be installed in the connecting links These bearings should not be tampered with or changed in size in any way at the time of assembly Do not attempt to change the size of the link by filing or grinder the faces of the link cap where they are clamped together When reinstalling the links on the crankshaft be sure to place the oil holes upward for proper lubrication See Figure 5 Bushing Ream Diameter C 1 000 to 1 0005 Inside Diameter D of Standard Bushing Bushing Inside Diameter D of Undersize Bushing 2 3741 to 2 3748 2 3441 to 2 3448 When installing new bushings for the crosshead wrist pin
12. ent that the pump will not perform to full capacity If the valve is partially closed it may cause severe knocking and vibration of the pump because the water cannot flow into the cylinder cavities fast enough Asediment chamber should be installed in the suction line between the gate valve and the pump suction The strainers in these sediment chambers are of more than adequate capacity to allow a free flow of the liquid to the pump However because of its normal function of collecting sediment the strainer may become severely clogged and in some cases it will completely stop the flow of liquid to the pump The length of time the pump may operate before it is necessary to clean the stainer will depend upon the type to liquid pumped After the pump has been used a short period the operator will soon become familiar with the amount of running time between strainer cleanings Any piston pump when operated at high pressure will not operate satisfactorily or quietly if a mixture of air and water is allowed to enter the pump suction For this reason a small air leak in the suction line will cause the pump to knock and vibrate exces sively This holds true only for a small air leak which allows 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 can not be reprimed until the air leak is 23833A632 stopped Air leaks may occur at the
13. iced it is an indication that the regulator valve is worn rather than the gun or nozzle discs Suction surge arresters should be installed on the suction line of reciprocating pumps A rubber bag type of suction surge arrester is preferred by a suitable vacuum chamber can be made by attaching a piece of vertical pipe as close to the pump suction as possible One and one half or two inch pipe can be used A standing height of 12 to 15 will be sufficient with the top end closed by an ordinary pipe cap Water may accumulate in the pump crankcase from two sources the most prevalent being leakage of the packing as explained in Paragraph E The other means of accumulation being a condensation of moisture inside the crankcase due to changes in weather of the repeated heating and cooling of the pump due to its normal usage Pumps that are used rather consistently and urn for a considerable period of time to heat the oil and other working parts will not normally accumulate water by condensation If the packing is replaced as soon as it starts to leak it will be impossible for water to enter the crankcase from this cause In localities or conditions where extremely abrasive liquids must be used it is always advisable to replace the cylinder shells at the same time the worn packing is replaced New packing will not give satisfactory service if it is placed in a badly worn and roughened cylinder liner Worn connecting link bearings will
14. if there is a stream leak 3 Replace if cracks and heavy wear are present 4 Replace at first signs of fatigue or wear to prevent damage to crankshaft 5 Replace if any pitting or rough surface on the seal surface LUBRICATION Pump Fill crankcase with SAE 30 crankcase oil 2 quarts Maintain oil level between the high and the low level marks on bayonet oil gauge inserted through crankcase cover Add extra quart for crankshaft speeds under 300 RPM NOTE Drain oil from crankcase after first 30 hours of operation Refill with proper oil as mentioned above Change oil every 300 hours thereafter Check oil levels regularly Change oil immediately if water droplets are found on bayonet gauge SERVICE CAUTION Disconnect electrical leads to motor or remove spark plug leads on engine before proceeding REPLACING PISTON PACKING Loosen cap screw 59 and piston assembly can be removed through cylinder opening Use waterproof grease to lubricate piston packing and o ring on cylinder caps REPLACING CYLINDER LINERS Removal See Figure 1 First remove piston packing as outlined previously Rotate crankshaft until piston rod is in rear position Insert puller 3 through inside of cylinder Insert disc 4 into slots on puller 3 Slip plate 2 over threads on puller 3 as shown Screw nut 1 on thread in puller 3 and snug up Tighten nut 1 until liner breaks loose Loosen nut 1 and slip disc
15. joints of the suction line piping at the gate valve in the suction line at the gasket sealing the capon the sediment chamber or by a crack in the suction wall of the cylinder body such as might be caused by freezing if the pump is not properly drained in freezing weather There is also a remote possibility of air drawing past the piston packing on the suction stroke if the piston packings are badly worn Badly worn packing or valves and valve seats will cause a serious drop in pump capacity This will be indicated by a drop in pressure when guns are turned on Worn packing is very easy to detect because of the water leakage The packing should be replaced just as soon as this excessive leakage is noticed If it is allowed to continue some of the material may work past the piston rod seals into the pump crankcase Water in the pump crankcase will cause severe corrosion of the bearings causing them to fail Worn valves can only be detected by visual examination of each valve assembly The most prevalent cause of valve wear is the use of highly abrasive liquids This will cause the valve and valve seat to wire cut The cut starts as a very small groove but increases very rapidly once the valve starts to leak through this groove Cutting will usually be much more evident on the valve plate in flat valve pumps 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
16. ld be taken when pushing oil seals over keyways or holes in a shaft to make sure the sealing lip is not damaged A slight nick or cut in this lip can damage a seal enough that it will not retain the oil properly TROUBLESHOOTING Figure 6 Table 1 Crank Pin Size D Standard Use Standard Link Bearing Size D for Reconditioned Shaft Use Undersize Link Bearing 2 3730 to 2 3740 2 3430 to 2 3440 When reassembling all parts make sure that all gaskets are replaced exactly as they were originally SYMPTOMS POSSIBLE CAUSE OF PROBLEM ailure of pump to build pressure ith discharge closed See A B C D E F or L C Suction line or sediment chamber clogged Palve ailure to hold pressure with discharge open See C D E F or G A Pump not primed B Valve closed in suctionline D Air leak in suction line M Regulator plunger sticking N Worn Orifice in nozzle O Foreign matter under pump P Loose piston rod ressure gauge shows abnor al fluctuations See C D E F G H L M O or R egulator chatter See D G H L or O E Pump packing or valves badly Q Main bearing lock rings out wory R Drive belt issues F Pump cylinder body cracked G Holes in nozzle discs are too large nozzle worn out H Need vacuum chamber in suction line Water in crankcase J Worn connecting link bearings K Lack of oil in crankcase or speed reducer case L
17. lishing operation should be performed by using a very fine emery cloth This procedure can only be followed where the amount of sanding does not reduce the normal diameter of the crank pin If the crankshaft cannot be refinished by hand in this manner it will be necessary to regrind and polish the bearing surfaces for special undersize bearings Figure 6 shows the crankshaft with the crank pin sizes tabulated in Table 1 for both standard diameter and the undersize diameter that should be maintained Worn or corroded crank pins can be ground and polished down to 030 under the size when the cranks were new When this is done the surface should be polished to a good smooth finish The undersize bearing halves are made especially for turned down crankshafts If the crankshaft has been reground to dimension D for reconditioned shafts the undersize bearing halves can be used and will fit properly and operate as well as the original equipment If the surface is badly damaged the crankshaft can often be salvaged by metalizing the crank pins and then regrinding and polishing to the original diameter When assembling oil seals on the crankshaft an oil seal expander thimble should be used at the end of the shaft as shown in Figure 6 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 on the shaft without turning or damaging the seal in any way Extreme care shou
18. nts that its products are free from defects in material and workmanship for a period of twelve 12 months from the date of purchase or eighteen 18 months from the date of manufacture During the warranty period and subject to the conditions hereinafter set forth MYERS APLEX will repair or replace to the original user or consumer parts which prove defective due to defective materials or workmanship of MYERS APLEX Contact your nearest authorized MYERS APLEX distributor or MYERS APLEX for warranty service At all times MYERS APLEX shall have and possess the sole right and option to determine whether to repair or replace defective equipment parts or components WARRANTY EXCEPTIONS Seals piston cups packing plungers liners valves are covered for a period of ninety 90 days for ambient temperature water service All other applications are for a period of thirty 30 days unless specific written guarantee for that specific application is made by MYERS APLEX All engines motors auxiliary equipment are warranted only to the extent of the warranty given by the respective manufacturer LABOR ETC COSTS MYERS APLEX shall IN NO EVENT be responsible or liable for the cost of field labor or other charges incurred by any customer in removing and or reaffixing any MYERS APLEX product part or component thereof THIS WARRANTY WILL NOT APPLY a to defects or malfunctions resulting from failure to properly install operate or maintain the unit in acc
19. only develop because of unusual or adverse operating conditions They will however be seriously affected by corro sion if water is present in the crankcase and they will wear out from overheating if adequate oil is not provided in the crankcase For this reason we recommend thorough draining cleaning and refilling with new oil prior to any storage period Replace bearings as soon as any damage is discovered to avoid possible damage to crankshaft See Lubrica tion Instructions Lack of sufficient oil in crankcase can quickly cause failure of pump power end and result in extensive repairs Oil level should be checked periodically during normal operation as well as when mainte nance work of any nature is performed Insufficient oil will first be indicated by excessive heat and should be corrected immediately 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 is drawn through the suction line into the pump disrupting the normal flow of water Pressure regulators that are operated by piston action may become sluggish in action due to the piston sticking or fitting too tightly in its cylinder This condition may be caused by an accumulation of chemicals collecting in and around the piston or may be due to excessive corrosion of the piston parts To check this condition remove and clean the piston After cleaning the piston parts should be
20. ordance with printed instructions provided b to failures resulting from abuse accident or negligence c to normal maintenance services and the parts used in connection with such service d to units which are not installed in accordance with applicable local codes ordinances and good trade prac tices or e if the unit is moved from its original installation location and f unit is used for purposes other than for what it was designed and manufactured RETURN OR REPLACED COMPONENTS any item to be replaced under this Warranty must be returned to MYERS APLEX in Ashland Ohio or such other place as MYERS APLEX may designate freight prepaid PRODUCT IMPROVEMENTS MYERS APLEX reserves the right to change or improve its products or any portions thereof without being obligated to provide such a change or improvement for units sold and or shipped prior to such a change or improvement WARRANTY EXCLUSIONS MYERS APLEX MAKES NO EXPRESS OR IMPLIED WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF MYERS APLEX SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSE Some states do not permit some or all of the above warranty limitations and therefore such limitations may not apply to you No warranties or representations at any time made by any representatives of Myers Aplex shall vary or expand the provision hereof LIABILITY LIMITATION INNO EVENT SHALL MYERS APLEX BE LIABLE OR RES
21. osed E E e T4A 16 Bearing Steel Backed Hai 6 mea 16 17 E E 20 21 22 Screw Cap Hex see 6 19101007 23 24 25 26 27 28 U Cup Lg 22835A004 29 30 wo 31 Gasket Vellumoid 2 15 16 O D 3 05059A052 32 33 34 35 Sorew Cap Socket Head 6 o6106A034__ 36 37 38 39 40 a 22 43 Undersized 030 dia Bearings are 10877A010K 2 Halves 23833A632 Model C40 20 Parts List continued Part Number 06125A004 17714A003 06127A003 Description 45 Seat Valve zz ae 46 Valve Delrin 6 47 Spring Valve Discharge 48 O Ring 17 16 O D 6 05876A171 49 Ring Back Up Nitrile 6 18753A008 50 Cap Valve 6 18456A007 51 Gasket Nylon 6 05059A436 52 Stud 7 8 14UNF 6 05659A130 53 Gasket Nylon 05059A437 54 Cap SST Cylinder 18457A008 55 Nu Hex ST 7 8 14 NF 6 19109A072 56 Ring Back Up Nitrile 18753A009 57 O Ring 2 7 16 O D 58 Plate Steel 26980B000 60 Plug Pipe Brass 3 8 NPT Packing V Ring 2 00 O D ee Follower Brass 3 t8easaoo2 68 Washer Copper 05030A 128 23833A632 ol IG ANN N Sin SH ERT S E oer y RE D wl Z O e mme Set IW RO Lp SS E Su Ee AN ULL Na N N AS IN GE N SC N H i yi WAAL SP Se 77 E Vo 23833A632 MYERS APLEX LIMITED WARRANTY INDUSTRIAL PRODUCTS CENTRIFUGAL AND RECIPROCATING PUMPS MYERS APLEX warra
22. to expand sealing edge as it is pushed on Figure 3 shows a recommended thimble for installation of oil seals The thimble should be ma chined from high carbon steel and polished on the exterior to reduce possibility of seal lip damage he R d mm Te Gs 875 GE po 1 32 R 5 8 gt Figure 3 lt 11 4 SERVICING CRANKCASE PARTS To remove the crankshaft 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 The crankshaft can then be removed by taking off the bearing caps and pulling the crankshaft through the bearing opening as shown in illustration Figure 4 During this process be sure to note the markings on the connecting links and link caps be cause these parts are mated to each other and should be reinstalled in the same position they were before taken apart Figure 4 23833A632 REPLACING CRANKSHAFT AND SHIM MING BEARINGS For quiet operation and long life the crankshaft and bearings must be installed as follows A Place 045 shim 3 pink shims on the right crank shaft bearing cap Tighten the 6 cap screws and torque to 20 ft lb 240 in Ib Slide crankshaft from left hand bore Extreme care should be exercised to avoid damage to oil seal by using tape to cover keyway slot B Install the left cap without shims Secure with 2 cap screws positione
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