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Copyright © 2017, S.P.M. Flow Control, Inc.. All rights reserved. S.P.M. Flow Control, Inc. is the owner of the copyright and all confidential information in this document, which must not be copied in whole or in part, in any form or by any means, and the information in it must not be used for any purpose other than the specific purpose for which it has been provided without the prior written consent of the copyright owner. SPM, SAFETY IRON, SAFETY HAMMER, SUR-DROP, DESTINY, STAMPEDE, DURALAST and GLADIATOR are trademarks and/or registered trademarks of S.P.M. Flow Control, Inc.. WEIR and WEIR (logo) are trademarks and/or registered trademarks of Weir Engineering Services Limited. Certain features of some of the products disclosed in this document may be protected worldwide by patents pending and registered in the name of S.P.M. Flow Control, Inc.. Document P/N: 2P121260

Most SPM® products generate, control, or direct pressurized fluids; therefore, it is critical that those who workwith these products be thoroughly trained in their proper application and safe handling. It is also critical thatthese products be used and maintained properly!

WARNING: DO NOT HANDLE, LIFT, INSTALL, OPERATE, OR MAINTAIN THIS WELL SERVICE PUMP WITHOUT READING THIS “WELL SERVICE PLUNGER PUMP SERVICE MANUAL” THOROUGHLY. TRAINING IN THESE DOCUMENTS IS A MUST FOR PACKAGERS, OPERATIONS, AND MAINTENANCE PERSONNEL. FAILURE TO DO SO CAN LEAD TO SERIOUS INJURY, DEATH, EQUIPMENT DAMAGE, PROPERTY DAMAGE, OR DAMAGE TO THE ENVIRONMENT.

The following information is given in good faith and should aid in the safe use of your SPM® products. Thisinformation is not meant to replace existing company safety policies or practices.

Hot Surfaces: A SPM® well service pump is capable of pumping fluids with temperatures up to 65°C/150°F withnormal trim. The power end of the pump can be operated at temperatures up to 79°C/175°F. It is theresponsibility of the packager to provide adequate guarding around the fluid end as well as the inlet anddischarge piping to protect against burn injury.

A SPM® well service pump operates at very high pressure and features some external moving parts. It is thecustomer"s responsibility to provide adequate warning and protection for personnel for when the unit isoperated.

1. When working on the pump, safety glasses, approved safety shoes, gloves, and hard hat must be worn. Fall prevention and protection should be in place when working on the pump in raised areas. Surfaces can become slippery when servicing the pump. Hammering on any part or component may cause foreign material or steel pieces to become airborne.

2. Personnel should only hammer on the SPM® hammer wrench provided and never directly on the pump itself. Fractures can occur from repeated misuse. Only soft-type hammers should be used.

4. When servicing the pump, do not manually lift any part in excess of 40 pounds. A lift device must be used in these cases. For parts weighting 40 pounds or less, proper leg type lifts are essential. Do not lift with a back type lift.

5. It is a personal responsibility to use the proper tools when servicing the pump. Any special tools required are furnished with the pump when new, and should be kept with the pump for its routine maintenance. It is your personal responsibility to be knowledgeable and trained in the use and proper handling of these tools for all maintenance of the pump. A pump is made up of internal and external moving parts. All personnel should be located away from the pump while in operation.

1. Each pump is clearly marked with a maximum pressure and temperature rating. This pressure must not be exceeded or SERIOUS INJURY OR DEATH CAN OCCUR.

2. Each pump is clearly marked with a maximum horsepower rating. This horsepower rating should not be exceeded or mechanical damage can occur, leading to SERIOUS INJURY OR DEATH.

3. The pump"s discharge connections should be properly cleaned, and lightly oiled before the downstream piping is attached. Any worn, damaged or missing seals should be replaced before engaging the pump"s drive.

4. The pump"s suction connections should be properly cleaned, and lightly oiled before the supercharge hoses are attached. Any worn, damaged or missing seals should be replaced prior to pumping. Leaking connections can cause pump cavitation leading to equipment failure and subsequent INJURY OR DEATH.

6. Welding, brazing, or heating any part of the pump, with the exception of driveline companion flanges, is prohibited. If accessories must be attached, consult Weir Oil & Gas factory prior to installation.

7. The SPM® pump suction supply flow, and pressure minimums in the pump service manual must be maintained or equipment damage will occur and can lead to SERIOUS INJURY OR DEATH.

8. A complete visual inspection of the pump"s power end and fluid end must be made prior to each use. Any leaking seals, broken bolts, leaking hoses, or improperly tightened parts must be remedied prior to rotating the pump.

9. Any oil and other contaminants from pump should be contained during operation, and throughout the maintenance process. Improper containment can lead to serious injury, equipment damage, property damage, or damage to the environment.

10. If a pump is used in a place where permanent piping is to be attached, frame flexing or structure movements must be considered. Do not place the discharge or suction connections in a bind. Inspect all components of such piping structure, including any valves, every 90 days for wash, erosion, corrosion, etc. Replace if worn. For mobile mounted units; discharge line swivels are required.

11. SPM® well service pumps are to be installed and operated in a horizontal position only, as shown in the pump"s service manual. Operation in an extreme inclined position could cause equipment failure, leading to injuries due to improper oil flow and/or improperly sealing valves.

12. Any repairs or service (even routine maintenance) performed on the pump must be performed by a trained service technician who is qualified to work on high pressure reciprocating plunger pumps. All such service and repairs must be supervised by qualified management personnel or returned to Weir Oil & Gas for service. Only SPM® replacement parts should be utilized. Failure to do so may result in loss of warranty as well as SERIOUS INJURY OR DEATH. Weir Oil & Gas provides a Pump Maintenance Mechanic Training School to qualify pump service mechanics.

13. SPM® well service pumps should never be used to pump gaseous, explosive, or uninhibited corrosive fluids. These may result in equipment failure, leading to INJURY OR DEATH.

14. Never place hands in area of reciprocating pony rod or plunger path. If work must be done in this area, make sure pump is disengaged from driver and isolated from suction and discharge pressure prior to initiating activity (locked out and tagged out).

1. The modifications to or unauthorized repair of any part of an SPM® pump, or use of components not qualified by Weir Oil & Gas, can lead to pump damage or failure and SERIOUS INJURY OR DEATH.

2. The pump"s fluid end and related piping must always be flushed with clean water after every job. If freezing temperatures are anticipated the fluid cylinder must be completely drained of any fluid. Failure to do this may result in fluid cylinder damage from fluids which have hardened or frozen.

3. All SPM® threaded components are right hand threaded unless specifically designated otherwise. Any turning counterclockwise will unscrew the assembly. Always make sure any threaded component is made up properly with the proper torque.

5. Pressure seal (line pipe) threads are not recommended for pulsating pressure service above 10,000 PSI or where side loading or erosion are suspected. Non-pressure seal (round tubing) threads or straight integral connections are recommended under these conditions. In order to achieve the recommended Non-Shock Cold Working Pressure, power-tight make-up is required on all threaded connections. Consult the factory for any usage other than normal constant flow working conditions. Integral connections are recommended in lieu of pipe threaded connections for all pump applications.

1. Each pump, its drive system, and its fluid piping should be visually checked each time before operating. All worn, damaged or missing parts should be remedied before starting the pump.

6. All fluid cylinders in operation must be disassembled and inspected for cracks. Fluid cylinder inspection should occur on a monthly basis or every 100 hours of operation. The operation of any pump with even small surface cracks in any area of the fluid cylinder can result in equipment failure and SERIOUS INJURY OR DEATH.

SECTION I: GENERAL INFORMATION.................................................................................................................................. 7  USEFUL PUMP DATA FORMULAS: ............................................................................................................................................. 7  SHIPPING AND STORAGE: ........................................................................................................................................................ 9 SECTION II: INSTALLATION AND OPERATION ................................................................................................................. 10  SPM® TWS600S PUMP DESCRIPTION: ................................................................................................................................. 10  INSTALLATION HIGHLIGHTS: ................................................................................................................................................... 12  LIFTING REQUIREMENTS: ....................................................................................................................................................... 14  RECOMMENDED PLUNGER LUBE OILS: ................................................................................................................................... 16  RECOMMENDED PLUNGER GREASE LUBE SYSTEM: ................................................................................................................ 17  PLUNGER LUBE CIRCUIT DIAGRAM: ........................................................................................................................................ 18  SUPERCHARGING SYSTEM REQUIREMENTS: ........................................................................................................................... 18  SUPERCHARGING SYSTEM OPERATIONAL PARAMETERS: ........................................................................................................ 21  RECOMMENDED PRACTICE FOR PUMP PACKING: .................................................................................................................... 22  STARTUP AND BREAK-IN PROCEDURE: ................................................................................................................................... 24 SECTION III: MAINTENANCE AND REPAIR: ...................................................................................................................... 28  ROUTINE PREVENTATIVE MAINTENANCE: ............................................................................................................................... 28  TROUBLESHOOTING GUIDE: ................................................................................................................................................... 31  SPM® TWS600S FLUID END REPAIR PROCEDURES: ............................................................................................................. 33  SUCTION VALVE STOP INSTALLATION FOR GROOVED FLUID ENDS: .......................................................................................... 37 SECTION IV: SERVICE AND SUPPORT .............................................................................................................................. 39  GENERAL INFORMATION: ....................................................................................................................................................... 39  SPARE PARTS AND USAGES .................................................................................................................................................. 40  FLUID END DRAWINGS: ......................................................................................................................................................... 41

SECTION I: GENERAL INFORMATIONUseful Pump Data Formulas:Definition of Symbols Used: A - Area (sq. in.) BHP - Brake horsepower BPM - Barrels per minute (U.S.) FV - Flow velocity (feet per second) GPM - Gallons per minute (U.S.) GPR - Gallons per revolution (U.S.) HHP - Hydraulic horsepower ID - Inside diameter (inches) ME - Mechanical efficiency NC - Number of cylinders (per pump) PD - Plunger diameter (inches) PSI - Pounds Per Square Inch RL - Rod load (pounds) RPM - Crankshaft revolutions per minute SL - Stroke length (inches) T - Torque (foot pounds)

Pump Data Formulas:  To calculate the HHP output when the volume and pressure are known: GPM x PSI = HHP 1714

WARNING: DO NOT HANDLE, LIFT, INSTALL, OPERATE, OR MAINTAIN THIS WELL SERVICE PUMP WITHOUT READING THIS “OPERATION INSTRUCTION AND SERVICE MANUAL” THOROUGLY. TRAINING WITH THESE DOCUMENTS IS A MUST FOR PACKAGERS, OPERATIONS, AND MAINTENANCE PERSONNEL. FAILURE TO DO SO CAN LEAD TO SERIOUS INJURY, DEATH, EQUIPMENT DAMAGE, PROPERTY DAMAGE, OR DAMAGE TO THE ENVIRONMENT.

All SPM® pumps are shipped dry, and must be flushed and filled with the proper lubricant before operating(refer to Installation and Operation Section). Pumps may be flushed with diesel or light oil. When pumps areshipped by ocean cargo, care should be taken to crate the pump in a watertight container and ship below deckto prevent salt-water contamination. Care should be taken to prepare the pump for possible long term storage.

New pumps are not prepared for long periods of storage and should be put in service as soon as possible.Follow the SPM® preservation guide for pump storage recommendations; SPM® document number 2P121266

CAUTION: PUMPS THAT HAVE SAT IDLE FOR ANY APPRECIABLE PERIOD OF TIME (TWO WEEKS ORMORE) MUST HAVE THE PLUNGERS AND VALVES REMOVED, COATED WITH A LIGHT LUBRICANT,AND REINSTALLED PRIOR TO OPERATING. THE ELASTOMERIC PLUNGER PACKING AND VALVEINSERTS WILL STICK TO THE MATCHING METAL PARTS AND BECOME DAMAGED UPON STARTUP IFNOT DISASSEMBLED AND LUBRICATED FIRST.

SPM® TWS600S Pump Description:The SPM TWS600S is a reciprocating, positive displacement, horizontal single-acting, triplex plunger pump thatis rated at 600 Brake Horsepower input maximum. The TWS600S is designed for intermittent duty well serviceapplications such as acidizing, cementing, fracturing, well killing, gravel packing, etc.

The TWS600S Pump consists of a Power End/Speed Reducer Assembly and a Fluid End Assembly. TheSpeed Reducer can be installed on either the right hand or left hand side of the pump and can be positioned inany one of 17 different input shaft locations to accommodate a number of different pumping unit drive trainconfigurations. Two different fluid cylinders are available to accommodate several plunger sizes for a variety ofpressures and volumes.

Optional packing assemblies, valve assemblies, discharge flanges, suction manifolds, etc. are available for awide variety of unitization arrangements; for the pumping of various specific fluids; and for service in a widerange of ambient conditions. The weight of the pump will vary slightly depending on plunger size and otheroptions but will not vary more than plus or minus 5% of the advertised weight.

Valve SpringsLong lasting coil springs engineered for a wide range of well service applications. Designed for spring rates,installed spring loads, and valve cracking pressures unique to well service pumps.

Installation Highlights:The proper installation of your SPM well service pump is a must in obtaining long life and trouble free service.Particular attention must be given to the following items:

A. Power Source: The prime mover (usually a 2100 RPM diesel engine) should not be rated at more than 725 BHP intermittent service in order to avoid overpowering the pump.

B. Drivetrain: The drivetrain which connects the pump to the engine should include a transmission (5 speed or more) and a mechanical driveline with universal joints and a slip joint in order to fully utilize the pump"s wide range of pressure and flow capabilities.

A powershift type transmission with integral torque converter and automatic lock-up clutch will provide the most trouble-free means of shifting under pressure. When using an ordinary mechanical transmission with manual clutch, extreme caution must be exercised when clutching and shifting in order to avoid introducing severe shock loads to the pump"s input shaft. When using any transmission with a “high gear” or “overdrive” ratio greater than 1.0:1, the “overdrive” gear range must be blocked out in order to avoid overspeeding the pump. When using a transmission with a torque converter and/or a low gear ratio of 5.0:1 or lower, extreme caution should be exercised to avoid over-pressuring the pump when operating in low gear or converter mode.

C. Power End Mounting: The pump must be securely bolted to the skid or vehicle at all four power end mounting hold locations (Refer to pump installation drawing).

D. Power End Lubrication: SPM® well service plunger pumps are shipped dry, do not include an integral oil pump, and are designed for a pressure lubricated dry sump system. An auxiliary oil reservoir and engine driven oil pump must be provided for proper lubrication. More information pertaining to the power end lube system and power end lube oils is included in this manual.

E. Plunger Lubrication: SPM® well service plunger pumps require a force fed oil plunger lube system. The unit is internally and externally plumbed so that the correct oil source provided by the customer will supply lube to all appropriate surfaces.

SPM® supplied hosing (both internal and external) is normally medium pressure Teflon with a stainless steel outer braid. This type hose has the following ratings:

WARNING: LIFTING THE SPM® TWS600S PUMP AND/OR FLUID END WITHOUT USING EQUIPMENT RATED FOR THIS LOAD CAN CAUSE EQUIPMENT DAMAGE, PERSONAL INJURY OR DEATH.

Plunger Lube System Requirements:SPM® well service plunger pumps are designed for packing lubrication with oil rather than grease.Exceptionally long packing life can be expected providing proper lubrication is supplied to the plunger packinglube port above each stuffing box. Ample plunger and packing lubrication can be achieved with an inexpensiverelatively trouble-free low-pressure air operated “lubricant pump” type system. Mechanically driven plungerlubricators are not recommended due to the well service pump’s extreme variations in pump speeds. Aproperly designed packing lube system will meet the following specifications:1. Oil Reservoir:  Should be a minimum of 15 gallon capacity.  Should be equipped for the vertical installation of an air-operated pump.  Should be equipped with a sight glass or dipstick.  Should be equipped with a breather/filler cap that has a built-in strainer to prevent trash from entering the reservoir.2. Air Operated Lubricant Pump:  Vertical air operated 12 oz. per minute / 150 PSI / 40:1 ratio lubricant pump.  Must be equipped with a 1/4” adjustable air pressure regulator in order to adjust the pump speed and packing lubricant flow rate.  Should be installed so that the bottom of the pump is no closer than 1” to the bottom of the reservoir.3. Packing Lubricant Flow Lines:  Should be 1/4” I.D./1250 PSI minimum/fiber or wire reinforced hose to prevent crimping.  Should be a common line from the lubricant pump to the plunger pump at which point it will branch off to each individual packing lube port.4. Flow Control Needle Valves:  Should be a 1/4” needle valve which can be locked at any given setting after adjustment.  Must be installed in each lubricant flow line which leads to the individual packing lube ports in the plunger pump fluid cylinder.5. High Pressure Check Valves:  Must be rated at or above the- well service plunger pump’s maximum pressure rating.  Must be installed in the packing lube port so that the direction of flow is into the fluid cylinder.6. Packing Lube System Flow Requirements/Adjustments:  After filling with the proper grade of rock drill packing oil, and before rotating the well service plunger pump, the lube system should be adjusted to supply oil to each plunger and packing assembly.  Weir Oil & Gas recommends a minimum of 1 pint per plunger per hour for adequate packing lubrication. Results from SPM® internal tests support this although variables in packaging and field operations may result in higher consumption rates. Minimum consumption rate 1.0 pint per plunger per hour  Rates as high as 3 times the minimum recommended have been reported, and this should be considered when sizing the lube reservoir.

Recommended Plunger Lube Oils:Selecting the proper plunger lube oil is very important to obtaining long life from the pumps plungers andpacking assemblies. The use of a superior plunger lubricant will also reduce horsepower robbing friction,reduce fuel consumption, and increase the net amount of hydraulic horsepower delivered by the pump. WeirOil & Gas highly recommends the use of a modern “Rock Drill” for improved lubrication of the plungers andpacking. If “Rock Drill” is not available, a suitable “Way Oil” may be substituted.Weir Oil & Gas recommends the use of Rock Drill or Way Oil that meet the following specifications:

NOTE: LUBRICANTS WHICH DIFFER SIGNIFICANTLY FROM THOSE SHOWN ABOVE AREUNACCEPTABLE AND MAY RESULT IN A MUCH SHORTER PLUNGER AND PACKING LIFE ORPREMATURE FAILURE OF THESE COMPONENTS.NOTE: STARTUP IS A CRITICAL TIME FOR PLUNGER PACKING. LUBRICATION SHOULD FLOW FREELYTO PLUNGERS/PACKING PRIOR TO STROKING THE PUMP. STROKING DRY PLUNGERS CAN CAUSETHE HEADER RING, PACKING, AND ELASTOMERS TO TEAR AND FAIL.NOTE: PROPER LUBRICATION IS CRITICAL TO DURING THE STARTUP OF THE PLUNGER PUMP. THEPLUNGER LUBRICANT MUST BEGIN TO FLOW FREELY TO THE STUFFING BOX LUBE INLET PRIOR TOTHE PUMP’S STARTUP AND STROKING OF THE PLUNGERS.CAUTION: PUMPS WHICH HAVE SAT IDLE FOR ANY APPRECIABLE PERIOD OF TIME (TWO WEEKS ORMORE) MUST HAVE THE PLUNGERS REMOVED, BE HAND COATED WITH PLUNGER LUBE OIL, ANDREINSTALLED PRIOR TO OPERATION UNDER POWER. THE ELASTOMERIC PACKING RINGS WILLEVENTUALLY STICK TO THE PLUNGER SURFACE AND WILL BECOME DAMAGED UPON STARTUP IFNOT RE-LUBRICATED AS NOTED ABOVE.

When using a SPM® air operated plunger lube system, the audible sound of the air operated lubricant pumpstroking once every one to two seconds will be an indicator of satisfactory plunger and packing lubrication.

Supercharging System Requirements:Due to the high-speed design characteristics associated with well service plunger pumps, supercharging theSPM® well service pump is necessary. The nature of well service operations (extreme variations in flow ratescoupled with the pumping of heavy slurries) requires a well-designed supercharge system. The superchargingsystem must deliver an adequate supply of fluid to the plunger pump’s suction manifold at high enoughpressures and flow velocities to prevent the pump from starving for fluid while at the same time, maintainingfluid flow velocities high enough to keep solids suspended in the fluid slurry. A well designed superchargingsystem is extremely important in avoiding the harmful effects of cavitation and ensuring trouble-free service ofthe SPM® well service pump. A well-designed supercharging system will meet the following guidelines:

These are defined as the piping where the fluid first begins to flow from its source through gravity flow oratmospheric pressure only. This portion of the system is usually a pipe or hose that connects the fluid reservoirto the charge pump or blender suction pump. The flow velocity (based on the plunger pump’s maximum flowrating with the size plunger being used) in this portion of the system must not exceed 4 feet per second in orderto flow freely under atmospheric pressure or gravity flow. Other guidelines are as follows:

 Hoses must be oil and chemical resistant wire reinforced combination vacuum/discharge hose rated at 305inHg/150 PSI minimum.  If steel piping is used; all piping runs must be installed so that they are level or progressively higher toward the plunger pump in order to prevent air traps in the system. When used, reducer fittings should be of the eccentric type and installed “belly down” in order to prevent air traps. All welded connections must be air and fluid tight.  All piping or hoses in this portion of the system should be kept as short as possible (10 feet or less and should be free of excessive bends and turns).

Some well servicing operations require the use of two centrifugals - one for mixing a slurry and the other forsupercharging the plunger pump. When two centrifugals are used, they must both meet the followingguidelines:

 Must be capable of delivering the rated maximum flow of the plunger pump while maintaining 80 PSI (185 feet head) minimum at the plunger pump suction inlet during all phases of the well service job. Must be sized appropriately to overcome any friction losses in the piping between the centrifugal’s discharge and the SPM® plunger pump’s suction inlet. For example, depending on the length and the layout of the piping, the centrifugal may have to be sized to deliver the required flow at higher pressures at its discharge in order to maintain 80 PSI (185 feet head) at its discharge in order to maintain 80 PSI (185 feet head) at the plunger pump suction inlet.  Must be operated at a speed which will deliver the required flow within the upper 25% of its efficiency range in order to assure adequate fluid acceleration on demand from the plunger pump.  Must be adequately powered to deliver the plunger pump’s fluid requirements based on volume, pressure, and the specific gravity of the fluid or slurry.

Secondary Suction Piping and Hoses:These are defined as the piping that carries fluid under pressure from the discharge of the centrifugal pump toanother point in the system. This is the piping which connects the centrifugal charge pump to the SPM® plungerpump suction inlet and can also be the piping which connects the centrifugal mixing pump’s discharge to amixing tub inlet. The flow velocity in this portion of the system (based on the plunger being used) should rangefrom 8 to 12 feet per second. Other guidelines are as follows:

 Hoses must be oil and chemical resistant wire reinforced combination vacuum/discharge hose rated at 203inHg/100 PSI minimum.  If steel piping is used; all piping runs must be installed so that they are level or progressively higher toward the plunger pump in order to prevent air traps in the system. When used, reducer fittings should be of the eccentric type and installed “belly down” in order to prevent air traps. All welded connections must be air and fluid tight.  All piping and hoses in this portion of the system should be kept as short as possible (10 feet or less) and should be free of excessive bends and turns.

Suction Pulsation Dampener (when a suction stabilizer dampening manifold is not used):Due to the plunger pump’s positive displacement design, a naturally occurring fluid rhythm is generated in thesupercharge system as the fluid stops and starts at each suction valve. The varying pressure signal created bythis fluid rhythm reduces the effectiveness of the charge pump and the SPM® pump unless the pressure signalis dampened out of the system. A suction pulsation dampener is necessary to ensure adequate fluidacceleration when each suction valve opens, which will help prevent cavitation, and will result in a muchsmoother operating pump and longer lasting expendables. Guidelines for using a suction pulsation dampenerare as follows:

 A pulsation dampener of the nitrogen charged bladder type should be rated at 150 PSI minimum, or a closed cell foam style dampener.  Should be installed above the fluid flow path or in line with the fluid flow path so that solids in the fluid cannot settle and pack around the bladder.  Should be installed as close to the plunger pump’s suction manifold inlet side, or if not possible as close as possible to the suction inlet for maximum effectiveness.  Must be pre-charged according to the manufacturer’s recommendations (usually 60% to 80% of the anticipated supercharge pressure).

WARNING: FOR CO2 SERVICE, USE AN SPM® CO2 APPROVED SUCTION MANIFOLD WITHOUT ASUCTION STABILIZER. USING NON-RATED EQUIPMENT CAN RESULT IN PRESSURE VESSEL FAILURE DUE TO THERMAL SHOCK. INJURY OR DEATH CAN RESULT FROM USING EQUIPMENT NOT RATED FOR CO2 SERVICE. NO VIC GROOVE END CONNECTIONS, HAMMER UNION ONLY.

Supercharge Pressure Gauge:Supercharge pressure gauge should always be used in the system and should meet the following guidelines:  Should be a liquid filled 0 to 150 PSI pressure gauge.  Should be installed as close to the plunger pump suction inlet as possible for maximum accuracy.  Should be used with a gauge snubber or a needle valve which can be adjusted to act as a snubber.

Supercharging System Operational Parameters:  The recommended Supercharge Pressure at the plunger pump suction inlet is 80 PSI (185 feet head) minimum to 100 PSI (230 feet head) maximum.

NOTE: THE SUPERCHARGE PRESSURE MUST ALWAYS BE GREATER THAN THE VAPOR PRESSUREOF THE FLUID BEING PUMPED.CAUTION: ALLOWING VELOCITIES IN THE PRESSURIZED PORTION OF THE SYSTEM TO FALL BELOW8 FEET/SECOND IN WATER WILL RESULT IN THE FRAC SAND NOT REMAINING IN SUSPENSION ANDCAN RESULT IN SAND-OFF AND EQUIPMENT DAMAGE.

SPM® Well Service Pump PackingFor use in the SPM® TWS 600S and QWS 1000S pumps for cementing, acidizing, and other well serviceapplications. This offering is rated up to 15,000 psi.  General Service - Standard header and pressure rings for basic applications  Enhanced General Service - Pairs enhanced header rings with standard pressure rings for extended performance

NOTE: The HD Service offering is ONLY for use in SPM® TWS 600S HD and QWS 1000S HD pumps or inmodels of the TWS 600S and QWS 1000S that have been retrofitted with SPM® HD retrofit kits.

NOTE: THE VOLUMETRIC EFFICIENCY AND RESULTING DISPLACEMENT WILL VARY SLIGHTLY DUETO OPERATIONAL FACTORS SUCH AS PUMP SPEED, SUPERCHARGE CONDITIONS, AND THESPECIFIC GRAVITY OF THE FLUID BEING PUMPED.

V.E. = VOLUMETRIC EFFICIENCY OF PUMP GPR = U.S. GALLONS PER REVOLUTION BPR = U.S. BARRELS PER REVOLUTION LPR = LITER PER REVOLUTION

Startup and Break-In Procedure:Each new pump must undergo a brief but thorough startup and break-in procedure in order to verify the fieldworthiness of the unitized pumping system and in order to allow a gradual “wearing in” of various mating partsin the pump itself. The following guidelines have been established by SPM to minimize startup problems andinsure maximum service from the plunger pump:

A. Inspection Prior to Starting Engine: 1. Check to see that all masking tape, rust preventative, etc. has been removed from moving parts such as plungers, pinion shaft, etc. 2. Check to see that the plunger pump is securely bolted to skid or truck frame. 3. Check to see that the driveline is securely fastened to the plunger pump’s input shaft and that adequate slip is present in the driveline’s slip joint. 4. Check to see that the power end lube oil reservoir was flushed and drained then filled with the proper type of gear oil. 5. Check to see that the plunger lube oil reservoir was flushed and drained then filled with the proper type of rock drill oil. 6. Check to see that the supercharge piping system has been completely flushed and all piping connections are tight. 7. Check to see that the power end lube system startup adjustments and plunger lube system startup adjustments were performed. 8. Check to see that the suction pulsation dampener has been precharged properly. 9. Check to see that the primary suction piping is connected to an adequate supply of cool clean water for testing. 10. Check to see that the plunger pump’s discharge piping is safely installed all the way back to the water reservoir. Check to see that all connections are tight and all valves are open. 11. Start the supercharge pump and flush all air from the entire system. 12. Follow the engine manufacturer’s recommendations for engine startup and warmup.

B. Warmup Procedure Prior to Rotating the Plunger Pump: 1. While operating the engine at idle and transmission in neutral, check the power end lube pump vacuum reading, the power end lube oil pressure, and the power end lube oil temperature. If the lube pump vacuum reading is less than 10” Hg, gradually increase the engine RPM to determine whether full engine RPM can be reached without exceeding 10” Hg at the power end lube pump suction inlet. 2. Continue running the engine at or below 10” Hg lube pump vacuum as necessary to warm and thin the power end lube oil. The plunger pump should not be rotated until full engine RPM can be achieved without exceeding 10” Hg at the lube pump suction inlet or until the power end lube oil temperature reaches 60F minimum.

C. Plunger Pump Valve Seating Procedure: 1. In order to protect the fluid cylinder from washing before sustained pumping begins, the tapered valve seats must be pressured up and fully seated creating a positive fluid seal. 2. Adjust the test choke for high pressure/low pump RPM. Shift the transmission to 1st gear and slowly increase the throttle setting, to achieve the values in the table below, for 2 to 3 minutes or until a series of audible popping noises are heard. This indicates the seats have properly set in the taper. The desired pressure for each plunger size is as follows:

During this portion of the startup procedure, closely observe the plunger pump for any unusual noise, vibration, fluid leaks, and oil leaks. Record all pertinent information such as elapsed time, ambient temperature, power end lube oil temperature, power end lube oil pressure, supercharge pressure, etc. After returning the engine to idle and transmission to neutral, physically inspect the plunger pump before proceeding further.

D. Break-In Procedure: 1. Adjust the test choke, engine, and transmission according to the values below. These settings should be approximately as follows: PLUNGER INPUT SPEED POWER PRESSURE FLOW RATE DIAMETER PINION PUMP IN (MM) RPM BHP KW PSI MPA GPM BPM LPM 2 1/2 (63.5) 3586 24.7 116 2.8 440 2 3/4 (69.9) 2963 20.4 141 3.3 532 3 (76.2) 2490 17.2 167 4.0 633 1400 304 270 201.3 3 1/2 (88.9) 1829 12.6 228 5.4 862 4 (101.6) 1401 9.7 297 7.1 1126 4 1/2 (114.3) 1107 7.6 376 9.0 1425

Run the plunger pump at this setting for one hour. During this time, closely observe the plunger pump for any unusual noise, vibration, fluid leaks, and oil leaks. Record all pertinent information such as elapsed time, ambient temperature, power end lube oil temperature, power end lube oil pressure, supercharge pressure, etc. After returning the engine to idle and the transmission to neutral, physically inspect the plunger pump before proceeding further.

PLUNGER INPUT SPEED POWER PRESSURE FLOW RATE DIAMETER PINION PUMP IN (MM) RPM BHP KW PSI MPA GPM BPM LPM2 1/2 (63.5) 305 227.4 5129 35.4 92 2.2 3472 3/4 (69.9) 331 247.0 4604 31.7 111 2.6 420 3 (76.2) 360 268.5 4204 29.0 132 3.1 500 1105 2403 1/2 (88.9) 3261 22.5 180 4.3 680 4 (101.6) 380 283.4 2496 17.2 235 5.6 8894 1/2 (114.3) 1972 13.6 297 7.1 1125

Run the plunger pump at this setting for one hour. During this time, closely observe the plunger pump for any unusual noise, vibration, fluid leaks, and oil leaks. Record all pertinent information such as elapsed time, ambient temperature, power end lube oil temperature, power end lube oil pressure, supercharge pressure, etc. After returning the engine to idle and the transmission to neutral, physically inspect the plunger pump before proceeding further.

PLUNGER INPUT SPEED POWER PRESSURE FLOW RATE DIAMETER PINION PUMP IN (MM) RPM BHP KW PSI MPA GPM BPM LPM2 1/2 (63.5) 340 253.5 7795 53.7 67 1.6 2552 3/4 (69.9) 392 292.7 7437 51.3 81 1.9 308 3 (76.2) 450 335.6 7164 49.4 97 2.3 367 811 1763 1/2 (88.9) 5731 39.5 132 3.1 499 4 (101.6) 490 365.4 4388 30.3 172 4.1 6524 1/2 (114.3) 3467 23.9 218 5.2 825

Run the pump at this setting for 30 minutes. During this time, closely observe the plunger pump for any unusual noise, vibration, fluid leaks, and oil leaks. Record all pertinent information such as elapsed time, ambient temperature, power end lube oil temperature, power end lube oil pressure, supercharge pressure, etc. After returning the engine to idle and the transmission to neutral, physically inspect the plunger pump before proceeding further.

PLUNGER INPUT SPEED POWER PRESSURE FLOW RATE DIAMETER PINION PUMP IN (MM) RPM BHP KW PSI MPA GPM BPM LPM2 1/2 (63.5) 375 279.6 13500 93.1 43 1.0 1622 3/4 (69.9) 454 338.4 13500 93.1 52 1.2 196 3 (76.2) 540 402.7 13500 93.1 62 1.5 234 516 1123 1/2 (88.9) 11020 76.0 84 2.0 318 4 (101.6) 600 447.4 8438 58.2 110 2.6 4154 1/2 (114.3) 6667 46.0 139 3.3 525

Run the pump at this setting for 30 minutes. During this time, closely observe the plunger pump for any unusual noise, vibration, fluid leaks, and oil leaks. Record all pertinent information such as elapsed time, ambient temperature, power end lube oil temperature, power end lube oil pressure, supercharge pressure, etc. Return the engine to idle, the transmission to neutral, and kill the engine.

SECTION III: MAINTENANCE AND REPAIR:Routine Preventative Maintenance:Maximum service and trouble-free operation can be obtained from the SPM® well service plunger pump byestablishing a thorough preventive maintenance program as follows:

During The First 100 Hours of New Pump Operation:  Thoroughly clean the power end lube oil suction strainer after the first 50 hours and 100 hours operation.  Change the power end lube oil after the first 100 hours operation and clean the lube oil reservoir.  Change the power end lube filters.

Daily Preventive Maintenance:  Check the oil level in the power end lube oil reservoir.  Check the oil level in the plunger lube oil reservoir.  Check the plunger pump for oil leaks and/or fluid leaks.  Check the power end lube oil system for leaks.  Check the plunger lube system for leaks.  Check the supercharge piping for leaks.  Visually check for loose fasteners in the following locations:  Power End mounting bolts.  Stay Rods, and fluid end attachment nuts.  Discharge Flanges.  Companion Flange.  Packing Nuts.  Retainer and Discharge Nuts.  If the suction stabilizer has a nitrogen filled bladder, check the nitrogen charge pressure and correct as needed. Follow the manufacturer’s charging pressure recommendations, usually 60%- 80% of suction inlet pressure.

Monthly (or every 200 hours) Preventive Maintenance:  Check all items on “daily” and “weekly” lists.  Check all fluid cylinder mounting bolts to insure that they are tight with a torque wrench.  Check all plunger pump-mounting bolts to insure that they are tight.  Change power end lube oil filters.  Check all supplies needed for routine maintenance such as o-rings, fluid seals, valves, valve inserts, valve seats, valve springs, packing, oil seals, filter elements, etc.  Check condition of valve springs; check weight and tension.

Quarterly (or every 600 hours) Preventive Maintenance (Cont.):  Change power end filters.  Remove and inspect the plungers and packing assembly components. Replace all packing pressure rings and header rings.  Clean the plunger pump’s oil breather and the power end lube oil reservoir breather.  Replace fluid end valve springs.

Yearly (or as required) Preventive Maintenance:  Replace worn plungers and packing brass.  Replace worn or corroded valve covers, suction valve stops, packing nuts, discharge flanges, pump tools, etc.  Replace all discharge flange seals and suction manifold seals.  Replace any defective gauges and instruments.  Inspect (and rebuild if necessary) the power end lube oil pump.  Replace the shell bearings. Retorque connecting rod housing bolts to correct torque values.

It is difficult to assess wear and tear on a pump based solely on hours operated, due to the variations in dutycycle and types of service. However, roller bearings, rod bearings and gearing may need replacing afterapproximately 1200 to 3000 hours. With either component, signs of extensive wear will generally show up asspalling, or flaking off, of material causing pitting or scoring on the working surfaces. A small amount of this istolerable on gear faces, but any spalling on a bearing surface is an indication to replace that item as quickly asfeasible.

Close observation of the lube oil filters during routine maintenance will generally indicate the condition of rollerbearings, gears, and journal bearings. A routine of pulling the inspection covers and inspecting the condition ofthe bearings and gears every 1000 hours is recommended.Expendable Components:

Troubleshooting Guide: TROUBLE SYMPTOM: PROBABLE CAUSE: A.) Abnormally high vacuum at power 1. Extremely cold ambient temperature/dangerously high end lube pump suction inlet (may oil viscosity. or may not be accompanied by 2. Clogged lube system suction strainer. abnormally low oil pressure). 3. Kinked or collapsed lube system suction hose. 4. Clogged oil reservoir breather. 5. Erroneous gauge reading. 6. Closed tank valve.

B.) Abnormally low power end lube oil 1. Leak in lube pump suction piping, which allows air to be pressure with normal to low drawn into the system. vacuum reading at lube pump 2. Worn or damaged lube pump. suction (may or may not be 3. Leak in lube pump pressure piping. accompanied by high oil 4. Low oil level in reservoir. temperature). 5. Clogged oil filter element. 6. Faulty lube system relief valve. 7. Extremely hot lube oil temperature/dangerously low oil viscosity. 8. Erroneous gauge reading.

C.) Abnormally high power end lube 1. Extremely warm ambient temperature/dangerously low oil temperature (may or may not oil viscosity/incorrect grade of gear oil. be accompanied by low oil 2. Gear oil contaminated with water, trash, or air bubbles. pressure). 3. Plunger pump has been operated continuously for too long a period of time at or near its maximum horsepower or torque rating. 4. Heat exchanger or oil cooler malfunction. 5. Erroneous gauge reading. 6. Internal power end damage or power end wear. 7. Thermostatic valve malfunction.

TROUBLE SYMPTOM: PROBABLE CAUSE:G.) Plunger and/or packing fluid leak. 1. Packing nut not tightened properly. 2. Worn or damaged packing. 3. Packing installed improperly. 4. Mating seal surface not cleaned properly prior to packing installation. 5. Damaged or corroded mating seal surface. 7. Fluid being pumped is incompatible with the style packing being used. 8. Wiper ring damaged or installed improperly.

H.) Fluid knock or hammer. 1. Air entering supercharge system through loose, worn or damaged connections. 2. Air entering supercharge system through leaking charge pump seals. 3. Fluid being pumped contains gas or vapor. 4. Insufficient supercharge flow or pressure. 5 Valve cocked open/broken valve spring or valve stop. 6. Worn or damaged valve, valve insert, or valve seat. 7. Improperly charged or ineffective suction pulsation dampener.

I.) Low discharge pressure/rough 1. Worn or damaged valve assemblies. running pump. 2. Insufficient supercharge flow or pressure. 3. Air, gas, or vapor in fluid being pumped. 4. Improperly charged or ineffective suction pulsation dampener. 5. Two or more plunger pumps being supercharged by a common charge pump and getting “in phase” with each other. 6. Pump has not been primed properly.

1. Using the SPM® 2” hex cover wrench and a 10lb. hammer, remove the suction covers and discharge covers from the fluid cylinder. 2. Turn the suction valve stops approximately 90 degrees and remove them from the fluid cylinder along with the valve springs underneath them. 3. Using an SPM® magnetic valve removal tool, cock each suction valve to one side in order to drain any fluid standing over it, and remove the valve from the fluid cylinder. Follow the valve manufacturer"s recommendation of removing the insert from the valve. 4. Remove the discharge valve springs and discharge valves from the fluid cylinder. 5. Using an SPM® hydraulic seat puller assembly, remove each of the discharge valve seats and suction valve seats. 6. The tapered valve seat bore in the fluid cylinder must be thoroughly cleaned and lightly hand polished with a 220 to 240 grit emory cloth prior to installing new valve seats. 7. Always install a new o-ring seal when reinstalling a valve seat. Do not use any type of grease, sealer, etc.-the valve seat must be installed dry. Upon installing the valve seat hand tight, install the valve in the seat and using a heavy steel bar, hammer the valve seat into the taper. 8. When reinstalling the valves, do not mix one manufacturer"s valve with another manufacturer"s valve seat. Likewise, do not mix one manufacturer"s valve insert with another"s valve. 9. When reinstalling the suction valve stop, make certain it is turned perpendicular to the plunger and securely seated in the groove in the cylinder. Note also the orientation of the valve stop. If the wings on the stop are not symmetrical, they must be pointed towards the suction cover and away from the plunger. (See Engineering Bulletin 1003 for more detail). 10. Before reinstalling the discharge and suction covers, remove the seals from each, clean the covers thoroughly, and install new seals in the same direction that the old ones came off. Each cover bore in the fluid cylinder must be cleaned thoroughly and lightly hand polished with a 220 to 240 grit emory cloth prior to cover installation. 11. Upon installing the threaded suction and discharge covers with a coating of oil or very light grease, tighten them securely with the 2” hex cover wrench and a 10 lb. hammer.

1. Remove the plunger lube fitting from each packing nut. 2. Using the SPM® packing nut tool, loosen each of the packing nuts at least one full turn. 3. Remove the suction covers as outlined earlier in “To Remove Valves & Seats”. 4. Using the SPM® plunger wrench, unscrew the plunger from the crosshead and pull each plunger out of the fluid cylinder through the suction cover bore. Care must be taken to keep contaminants from entering the power end section once the plunger is removed. 5. After securing the seal ring with the SPM® seal ring retainer or another suitable tool, completely remove each packing nut from the packing gland thread bore. The seal ring must remain in the cylinder while the packing nut is being removed. Once the packing nut is removed, the seal ring may then be removed from the cylinder. Label each packing nut on removal to ensure that they are installed back into the same bore. 6. Inspect each plunger for wear, scoring, and corrosion on the hard surface area and damage to the face which mates with the crosshead. 7. Inspect each ring of packing brass for excessive wear and scoring. 8. Blow air through the lube port on each packing nut to ensure that the lube passage is unobstructed. 9. Each packing bore, both inside the packing nut and inside the fluid cylinder, must be thoroughly cleaned and lightly hand polished with a 220 to 240 grit emory cloth prior to packing reinstallation. 10. Using new packing header rings and new packing pressure rings, reinstall the packing assembly one piece at a time (refer to the Packing Assembly diagram included in this manual). Each ring should be installed with a coating of light oil only. Care must be taken to avoid damaging the internal and external sealing lips of each packing ring. 11. Replace the o-rings and back-up rings in the seal rings and dress the seal ring seal areas in both the fluid cylinder and packing nut with 220 to 240 grit emory cloth. Reinstall the seal ring as shown in the packing assembly diagram. 12. Reinstall each packing nut into its proper cylinder, screwing it all the way in until tight, then backing it off one to two turns. 13. Coat the hard surface area of each plunger with a light oil and insert it into the packing. Using an aluminum bar and 12 lb. hammer, bump the plunger into the packing while holding it as straight as possible with the packing bore centerline. Continue bumping the plunger through the packing until the threaded bore approaches the crosshead stud; or for solid studded plungers, until the stud approaches the crosshead threads. Carefully align the plunger and crosshead and gently bump the plunger up against the crosshead. 14. Tighten the plunger to the crosshead with the SPM plunger wrench to achieve torque as shown in the installation illustrations. 15. Using the SPM® packing nut wrench, packing tighten each nut as tight as possible.

NOTE: THE PACKING NUT WILL NEED TO BE RETIGHTENED ONLY ONCE AFTER THE PUMP ISREASSEMBLED AND RUN UNDER PRESSURE FOR A FEW REVOLUTIONS. AFTER THAT, THEPACKING IS COMPLETELY SELF-ADJUSTING.

1. Using a 1⅛” wrench, remove the twelve 3/4” capscrews which secure the suction manifold to the fluid cylinder, and drop the suction manifold away from the fluid cylinder. 2. Inspect the suction manifold for internal erosion and corrosion. Remove the three suction manifold o-ring seals and inspect the seal grooves in the manifold for erosion and corrosion. Inspect the face and O.D. of the pipe at each end of the manifold for erosion and corrosion. Note: The SPM® manifold incorporates a Victaulic “ES” type connection at each end which will accept either a Victaulic “End Seal Cut Groove” gasket or a Victaulic “Standard Cut Groove” gasket. The condition of the pipe face at each end of the manifold is important for sealing purposes only when the “End Seal (ES)” gasket is used. 3. Inspect the bottom face of the fluid cylinder for erosion and corrosion. Thoroughly clean and lightly hand polish the bottom face of the fluid cylinder with a 220 to 240 grit emory cloth prior to reinstalling the suction manifold. 4. Using new o-ring seals, reinstall the suction manifold. Reinstall the twelve 3/4” capscrews and evenly tighten them to the proper torque (refer to the Torque Table included in this manual).

1. Disconnect the plunger from the crosshead using the SPM® plunger wrench as outlined earlier in Section B “To Change Plunger and Packing”. 2. Disconnect the plunger lube hoses and whatever discharge piping connections and suction piping connections are necessary for fluid end removal. 3. Support the fluid cylinder, and then remove the four (4) 1” bolts & the four (4) 1⅜” bolts which secure the fluid cylinder to the power end. 4. Examine the mating surfaces of the fluid cylinder and nose plate for signs of damage. Examine mounting bolt threads for signs of damage. Repair or replace as necessary. 5. Clean and lubricate the fluid cylinder mounting bolt threads, and hand tighten the (8) bolts. Using a torque wrench, tighten the four (4) 1” bolts to 500 ft-lbs, and the four (4) 1⅜” bolts to 1300 ft-lbs. 6. Reconnect all hose and piping connections and tighten plunger to crosshead to torque of 250 to 350 ft-lbs.

Suction Valve Stop Installation for Grooved Fluid Ends: 1. To insert valves, valve seats, and springs; Follow instructions in the “To remove valves and seats” section of this manual. 2. Insert valve stop and turn valve stop approximately 90 degrees. Ensure that it is properly seated in the grooves in the cylinder and that it is turned perpendicular to the plunger. (Fig. 6) SPM® VALVE STOP WRENCH

3. Follow “To remove valves and seats” section of this manual for prepping covers and fluid cylinder for installation. 4. Reinstall the discharge covers and suction covers using the SPM® slide hammer. Care must be taken to keep the discharge valve springs aligned properly while installing the discharge covers. (Fig. 7)

5. Using the SPM® hex cover wrench and 6 pound hammer, reinstall the discharge and suction cover retainer nuts per instructions in the “to remove valves and seats” section of this manual. (Typically two or three blows with the hammer will seat the cap and nut). (Fig. 8)

General Information:Weir Oil & Gas stocks a large inventory of genuine original equipment replacement parts for each of its pumps.In order to expedite a parts order and avoid any delays, please provide the following information with yourorder: 1. The part number and description (refer to drawings and parts lists in this section) of each item ordered. 2. The quantity of each part, kit, or assembly ordered. 3. The model number and serial number of the pump (see identification tags on the fluid end and power end). 4. Your purchase order number. 5. Specify method of shipment, complete shipping address, complete billing address and telephone number at the destination of the shipment.

There is a 25 percent restocking charge for any returned, undamaged parts. Returned parts must include aSPM® issued “Return Authorization Number” on the shipping label and packing list. Parts must be returnedwithin 90 days of the original shipping date. Returned parts must be shipped prepaid, to the appropriateaddress, including a copy of the original invoice or delivery ticket.

Copyright © 2017, S.P.M. Flow Control, Inc.. All rights reserved. S.P.M. Flow Control, Inc. is the owner of the copyright and all confidential information inthis document, which must not be copied in whole or in part, in any form or by any means, and the information in it must not be used for any purposeother than the specific purpose for which it has been provided without the prior written consent of the copyright owner. SPM, SAFETY IRON, SAFETYHAMMER, SUR-DROP, DESTINY, STAMPEDE, DURALAST and GLADIATOR are trademarks and/or registered trademarks of S.P.M. Flow Control,Inc.. WEIR and WEIR (logo) are trademarks and/or registered trademarks of Weir Engineering Services Limited. Certain features of some of the productsdisclosed in this document may be protected worldwide by patents pending and registered in the name of S.P.M. Flow Control, Inc..

Table of contentsSection I. General DescriptionSJ600S Pump DescriptionSJ600S Pump Performance Parameters/Installation DrawingInstallation for LH gear boxInstallation for RH gear boxTach Drive/Rate Meter Calibration SpecificationUseful Data FormulaShipping and Storage

Section II. Installation DetailsPump Installation HighlightsPower End Lube System RequirementsPower End Lube System CartogramRecommended Power End Lube OilPower End Lube Startup and Performance DataPlunger Lube System RequirementsRecommended Plunger Lube OilPressurizing System RequirementsPressurizing System Operation Parameters

Section III. Pump Operation and MaintenanceSJ600S Pump Start-up and shut-down ProcedureRecommended Pump Sealing MethodsTrouble-Shooting GuideRoutine Preventive MaintenanceFluid End Repair ProceduresPower End Repair ProceduresTorque Table

Section I. General InformationSJ600S Pump DescriptionThe SJ600S is a reciprocating, positive displacement, horizontal single-acting, triplexplunger pump which is rated at 600 Brake Horsepower input maximum. The SJ600Sis designed for intermittent duty well service applications such as acidizing,cementing, fracturing, well killing, gravel packing, etc.The SJ600S Pump consists of a Power End, Speed Reducer Assembly and a Fluid EndAssembly. The Speed Reducer can be installed on either the right hand or left handside of the pum