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JETStream UNx 3000 Series Operation Manual

Bareshaft pump

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OPERATION MANUAL
OPERATION MANUAL
UNx™ Bareshaft Pump
UNx™ Bareshaft Pump

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Summary of Contents for JETStream UNx 3000 Series

  • Page 1 OPERATION MANUAL OPERATION MANUAL UNx™ Bareshaft Pump UNx™ Bareshaft Pump...
  • Page 2 VISUAL SAFETY SYSTEM...
  • Page 3 This manual is copyrighted with all rights reserved. Under copyright laws, this manual may not be copied in whole or in part or reproduced in any other media without the express written permission of Jetstream of Houston, LLP or its authorized agent. Permitted copies must carry the same proprietary and copyright notices as were affixed to the original.
  • Page 4 Jetstream in Houston, Jetstream FS Solutions Rental Center, the customer’s location, or at other locations approved by Jetstream. Labor is furnished only when the unit or part is returned to the factory or when travel and expenses are paid by the purchaser.
  • Page 5 Jetstream Unit Design Guidelines ........................14 Technical Notes ..............................15 2000 Series Pump Installation Guidelines ....................15 Jetstream 3000/3600/4200 Series Pump Installation Guidelines ........16 Jetstream 5200 Bareshaft Pump Installation Guidelines ............17 Jetstream 5200Q Bareshaft Pump Installation Guidelines ............17 PUMP OPERATION GUIDELINES ............................19...
  • Page 6 Operation Manual Start-up Preparation - Pump ..........................19 Raising System Pressure ........................... 19 Checking the Water Lubrication System ....................20 Monitoring Weep Holes .............................. 21 MAINTENANCE ....................................23 Daily ......................................23 50 Hours .................................. 23 100 Hours ................................23 500 Hours ................................23 1000 Hours ................................
  • Page 7 Bareshaft Pump Changing the Power End Oil ........................62 Crosshead Pony Rod Seals ........................63 Connecting Rod Journal Bearings .....................65 Crosshead and Connecting Rod Assembly ................69 2000 Crankshaft ..............................71 4200/3600/3000 Crankshaft Removal ..................75 5200 Crankshaft ............................. 79 Cover seal replacement (non-2000 series) ................85 TROUBLESHOOTING ..................................
  • Page 8 Operation Manual viii...
  • Page 9 A safety manual is shipped with each minimize or elminate the risk of injury to the unit. It provides guidelines and product user. Jetstream has taken every effort to instructions for maintaining a safe work alert the user to potential safety risks through the...
  • Page 10 Further instructions for safe operation are located Apply a coat of anti-seize compound over the Teflon in the Jetstream Safety Manual. Read this manual sealant to prevent “galling” or seizing of threads. before operating the equipment.
  • Page 11 Training is available through Jetstream and can be requested from the ® Jetstream website (www.waterblast.com) or FS Solutions rental centers. Following repairs or maintenance, operate the system at low pressure to test the system. Adjust the pressure slowly during operation.
  • Page 12 Operation Manual...
  • Page 13 The water lubricates and cools for optimum operation of the pump. The system Contact Jetstream for any for detailed exploded includes a manifold and three water lines. The views and component part numbers for the Classic needle valves control the amount of flow to each fluid and power ends.
  • Page 14 Water that bypasses the valve will drain the disc is replaced. Use only genuine Jetstream from the bypass drain throughout operation. rupture discs properly rated for the intended The proper use of the bypass valve is to install the operating pressure.
  • Page 15 Bareshaft Pump Bypass Valve Discharge Fitting Supply Couplings Figure 3: Pump Components (Continued). Discharge Fitting Fluid End Identification The discharge fitting allows the connection of a A plate (Figure 5) is attached to all fluid end high pressure hose. High pressure water exits from manifolds.
  • Page 16 Operation Manual COMPONENT IDENTIFICATION Before operating the unit it is necessary to fully understand each component and how it functions. Following is a brief description of the unit’s main components. UNx Gen 2 Pumps Water Lubrication System The water lubrication system provides water to the The UNx pump uses the power from the engine packing in the pump.
  • Page 17 The supply couplings provide a quick method for should burst, there is no way to build pressure until attaching the supply hose to the manifold the disc is replaced. Use only genuine Jetstream rupture discs properly rated for the intended Manifold operating pressure.
  • Page 18 Operation Manual Fluid End Identification A plate (Figure 8) is attached to all fluid end Rating Rating manifolds. The plate is stamped with the fluid end Plate Plate model number. A separate decal mounted on the unit details available plunger sizes, pressures and flows.. Regulator Valve (Not Shown) For shut-in systems (where no low pressure water dumps from the gun), the bypass valve is replaced...
  • Page 19 Bareshaft Pump 40K Hose Connections (non-2000 series) 1. Remove the supply hose (Figure 12) (supply from charge pump) from the suction elbow fitting on the 15K/20K manifold. Bleed Valve 2. Install the 40K manifold as outlined earlier in this chapter. 3.
  • Page 20 The gear drive option requires inline drive with flexible coupling***. All Jetstream power ends have a preferred rotation direction arrow that is cast into the powerframe on the top of the casting above each side seal plate . However, reverse rotation operation is allowed with the addition of optional reverse rotation oil scrapers(depending on pump).
  • Page 21 fluid end, but can negatively affect the power end. Jetstream recommends oilfield suction hose as it has proven to be durable with a relatively small bend radius. The hose should be as short and straight as possible with no additional fittings (elbows) - especially important with gravity fed setup.
  • Page 22 Jetstream pumps are designed and built primarily for pumping water at various pressure ratings. Jetstream does not have a compatible fluids list at this time. The use of any fluids other than water void warranty. There are special considerations for seawater ap- plications. Please consult the factory for a specific application.
  • Page 23 This problem is worse with large plungers, high inlet pressure, and low speeds. Follow Jetstream’s maximum allowable fluid end inlet pressures as defined in the Water Supply sections of the individual pumps sections below and minimum pump speeds per our catalogs to prevent this type of failure.
  • Page 24 Operation Manual Jetstream 3000/3600/4200 Series Pump Installation Guidelines Water Supply The 15K and 20K versions can be gravity fed (water level 3’ minimum above the manifold suction inlet). The 40K version requires 40 psi minimum supply pressure at full pump speed to operate. The 3040 pump with #7 plungers(200hp) requires 65 psi suction pressure at full speed.
  • Page 25 Bareshaft Pump Jetstream 5200 Bareshaft Pump Installation Guidelines Water Supply The 5200 pump can NOT be gravity fed and requires 40-50 psi suction water pressure at full pump speed to operate. All fluid ends have a maximum inlet supply pressure of 75 psi.
  • Page 26 Operation Manual Jetstream 5200Q Bareshaft Pump Installation Guidelines Lubrication The power end is lubricated with 27 gallons of 80W90 gear oil (non detergent only) in the sump of the housing. The 5200Q power end is equipped with an oil temperature gauge and an oil pressure gauge. Both of these gauges have integral shut-down switches.
  • Page 27 Bareshaft Pump PUMP OPERATION GUIDELINES Flushing the System: See Unit Manual Start-up Preparation - Pump 1. Inspect the secondary filter cartridge if operating at 40K. 2. Check the tightness of the gland nuts on each stuffing box. 3. Inspect all equipment. Ensure that every piece of equipment in the pressure circuit is properly rated for the intended operating pressure.
  • Page 28 Operation Manual Checking the Water Lubrication System 1. Lift the rod box cover to view the water lubrica- tion system. Stuffing Box Lubrication Line WARNING There are moving parts inside the rod box that can cause serious injury. Use extreme cau- tion.
  • Page 29 Bareshaft Pump Monitoring Weep Holes Weep holes are manufactured into the manifold to alert the operator when seals have failed. If a seal fails, the Face Seal weep hole water will leak from its associated leakage hole. There are two types of weep holes, the high pressure face seal weep holes that are rectangular slots (Figure Uni-valve 9) and the low pressure uni-valve seal weep holes that...
  • Page 30 Operation Manual...
  • Page 31 Bareshaft Pump MAINTENANCE 100 Hours Daily Initial Power End Oil Change - After the first Check Power End Oil Level - Add oil as 100 hours of operation on a new unit, change necessary. Refer to “Checking Power End Oil the power end oil.
  • Page 32 Operation Manual Winterizing The Pump Severe damage can result if the waterblast unit is not protected from freezing conditions. The stuffing boxes hold water that can freeze, causing damage to the stuffing boxes, uni-valves, plungers and man- Funnel ifold. To prevent freezing, drain the water from all Assembly hoses, charge pump and tanks, and add anti-freeze to the stuffing boxes.
  • Page 33 Bareshaft Pump PRESSURE CONVERSION The versatility of the Jetstream waterblast pump allows operators to modify the pump to change to different oper- ating pressure ranges when necessary. There are three ranges of pressure usually referred to as 15K, 20K, and 40K. These are abbreviated names to easily denote the maximum operating pressure.
  • Page 34 Operation Manual Continue removing the remaining manifold bolts. Manifold Studs Figure 18: Using Manifold Studs Once all of the bolts are removed, lift the manifold off the pump (Figure 19). CAUTION Use two people to lift the manifold. The mani- fold is heavy and failure to use two people may cause serious injury.
  • Page 35 Bareshaft Pump 11. Remove the two bolts that secure each plunger coupling (Figure 21) to the plungers and remove the three couplings. Plunger Note: The coupling halves are matched and Coupling must be kept together. 12. Pull each stuffing box from the pump case (Figure 22).
  • Page 36 Operation Manual 17. Apply thread sealant to the threads of the lubrication line fittings. Install the fittings onto the stuffing boxes. Re-Install the water lube lines. (Figure 24) Lube Water 18. Apply a light coating of petroleum jelly or Fittings Anti-Seize to the mounting face of the power end.
  • Page 37 Bareshaft Pump d. To install the hinge rod (Figure 26), it will be necessary to either lift the manifold or use a screwdriver to flex the rod while simultaneously tapping the end with a hammer to get the rod through the second set of trunnions.
  • Page 38 Operation Manual 23. Connect the supply coupling and the bypass hose to the manifold. Supply Couping 24. Reinstall the hydro-throttle switch housing. 25. Verify all connections, glands and bolts were properly tightened. 26. Ensure the water lubrication system is properly adjusted, if equipped, before waterblasting.
  • Page 39 Bareshaft Pump Converting a 5200Q Pump Bypass Drain Use the following procedure to convert a pump to a Hose different pressure. Relieve pressure from the pump, shut off the engine, and disengage the pump. Turn off the water supply, drain the water tank. Disconnect the bypass drain hose and the supply coupling from the manifold (Figure 32).
  • Page 40 Operation Manual Remove the top manifold bolts at each corner and install manifold mounting studs PN 54261 into the two open holes to allow for easier installation of the new manifold (Figure 35) Note: The pump wrench can be used with a hammer to remove the manifold bolts.
  • Page 41 Bareshaft Pump 11. Pull each stuffing box from the pump case (Figure 37). 12. Clean the stuffing box bore thoroughly and apply petroleum jelly or Anti-Seize to the bores. ATTENTION Apply anti-seize comppounf to each stuffing box bore when installing stuffing boxes to help prevent corrosion and extend pump life.
  • Page 42 Operation Manual 16. Apply thread sealant to the threads of the lubrication line fittings. Install the fittings onto the stuffing boxes. Re-Install the water lube Water Lube Fittings lines. (Figure 40) 17. Apply a light coating of anti-seize compound to the mounting face of the power end.
  • Page 43 Bareshaft Pump d. Repeat as necessary making half turn adjust- ments to both trunnions up or down until the manifold bolts thread in and out easily. 20. Install the manifold bolts in the open holes and hand-tighten.(Figure 44) 21. Remove the manifold mounting studs . 22.
  • Page 44 Operation Manual 40K Hose Connnections (Typical) Supply from Remove the supply hose (Figure 47) (supply Charge from charge pump) from the suction elbow Pump fitting on the 15K/20K manifold. Install the 40K manifold as outlined earlier in this chapter. Remove the plug from the filter outlet hose. Connect the hose to the elbow on the 40K manifold.
  • Page 45 Bareshaft Pump SERVICE Fluid End Checking Manifold Bolt Torque Verify the head bolts are properly tightened. Check the bolt torque in a crisscross sequence starting with the center bolts (Figure 45).Proper torque is 350 ft.-lb. (470 N·m) . Proper torque for 2000 series pump is 120 ft-lb(162 Nm).
  • Page 46 Installation of two separate rupture discs in two separate rupture disc holders is required Figure 47: Housing/Cap Removal (15K Manifold Shown). by Jetstream for warranty coverage on this pump. One rupture disc must be rated at 120% of the fluid end stamped pressure rating.
  • Page 47 Bareshaft Pump Insert the rounded end of the pump wrench (Figure 50) into one of the holes in the gland nut and tap the top of the wrench sharply with a heavy hammer to loosen. When loose, unscrew the gland nut from the stuffing box by hand. Figure 50: Loosening the Gland Nut.
  • Page 48 Operation Manual Remove the plunger and guide bushing from the gland nut and inspect (Figure 53). Note: The guide bushing may be stuck and require some force to remove. Use a tool in the cutout (Figure 54) to push the bushing out. Use caution to avoid damaging the gland nut.
  • Page 49 Bareshaft Pump 12. On 40K units, measure the diameter of the guide bushing (Figure 56). If the diameter exceeds the Dimension A specification listed in the “40K Guide Bushing Replacement Table” below, replace the bushing. If the bushing shows scoring or if the edge is chipped, replace the bushing.
  • Page 50 Operation Manual Typical 15K/20K Fluid End Components – non-2000 series Item Description Plunger Gland Nut Bushing Packing Stuffing Box Uni-Valve Lube O-Ring...
  • Page 51 Bareshaft Pump Packing Installation (non-2000 Series) Install a new O-ring (Figure 57) onto the gland nut. Install the guide bushing and plunger into the gland nut. Place the new packing and guide bushing onto the plunger. Orient the packing as shown in (Figure 54) for 15K/20K and (Figure 55) for 40K (pg 41).
  • Page 52 Operation Manual Pull the plunger back to meet the crosshead pony rod. If the packing is too tight to move the plunger by hand, the pump can be rotated by hand (via the belts) to move the pony rod to Coupling meet the plunger.
  • Page 53 Bareshaft Pump Packing Replacement (2000 series) Packing Removal Relieve pressure from the pump, shut off the engine and disengage the pump drive system BOTTOM (pto,transmission,coupling, etc). DEAD Turn off the water supply and drain the water CENTER from the fluid end. Open the rod box cover.
  • Page 54 Operation Manual Remove the gland nut and plunger assembly from the stuffing box. It may require effort to wiggle the packing out by moving the plunger from side to side and up and down (Figure 65). Remove the packing set from the plunger. Remove the plunger and guide bushing from the gland nut and inspect.
  • Page 55 Bareshaft Pump 10. Remove the O-ring (Figure 66) from the gland nut. 11. Repeat the previous steps for the remaining stuffing boxes if packing is to be replaced. 12. Inspect the plunger for scratched or deep scores. Discard damaged plungers. Packing Installation (2000 series) Install a new O-ring onto the gland nut.
  • Page 56 Operation Manual Pull the plunger (Figure 69) back to meet the crosshead pony rod. If the packing is too tight to move the plunger by hand, the crankshaft should be rotated by hand to move the pony rod to meet the plunger. Figure 69: Pull Plunger to Meet Pony Rod.
  • Page 57 Bareshaft Pump Uni-Valve Service Uni-valve Removal Relieve pressure from the pump, shut off the Supply Coupling engine, and disengage the clutch. Turn off the water supply and drain the water tank. Disconnect the bypass drain hose and the supply coupling from the manifold (Figure 72). Bypass Drain Hose Figure 72: Disconnect Bypass Drain Hose and Supply Coupling.
  • Page 58 • 3600/4200 Series: 165 lb. (75 kg) • 3000 Series: 90 lb. (41 kg) • 2000 Series:53 lbs (24 kg) Use two small pry bars (Jetstream p/n 70179) to pry the valve out of the manifold as shown (Figure 75).
  • Page 59 Bareshaft Pump Uni-Valve Installation Place the valve into position on the manifold. Using the palms of your hands, press the valve into the manifold as shown (Figure 77). Install the remaining valves. Swing the manifold upward to install the bolts. Install the manifold bolts and tighten in a criss- cross sequence starting with the center bolts (Figure 78).
  • Page 60 Operation Manual 15K, 20K Uni-Valve Service Disassembly Remove the O-ring at each end of the valve (Figure 79). Discard the O-rings. Locate the slits in the two white backup rings O-Ring and carefully remove the rings. Remove the companion O-rings, as well (Figure 80). Discard the O-rings and backup rings.
  • Page 61 Bareshaft Pump Remove the suction valve spring retainer and Spring Retainer valve spring (Figure 82). Lift the assembly off of the suction valve and Spring set the suction valve aside. Insert a small screwdriver under the discharge spring (Figure 83). Carefully rotate the Suction Valve screwdriver until the spring releases from the groove.
  • Page 62 Operation Manual Assembly Install the discharge valve onto the valve body. The shiny mating surface faces the holes on Dishcarge the valve body. Place the discharge spring into Spring position on the valve (Figure 84). Lock the spring in its retaining groove. Use a screwdriver to push the spring in place.
  • Page 63 Bareshaft Pump 40K Uni-Valve Service Disassembly Use a small screwdriver to remove the two black O-rings from the valve (Figure 87). O-Rings Figure 87: Remove O-Rings. Use the screwdriver to remove the seal retaining ring. Insert the blade under the slit Retaining Ring and rotate the ring out of the groove (Figure 88).
  • Page 64 Operation Manual Press down on the valve spring retainer and slide the spring keepers out from the assembly Keeper (Figure 90). Spring Remove the valve spring and valve spring retainer. Spring Retainer Figure 90: Remove Retainer and Spring Keepers. Remove the suction and discharge valves (Figure 91).
  • Page 65 Bareshaft Pump Assembly Install the discharge valve into the valve body Spring (Figure 92). Retainer Position the valve spring and valve spring retainer into place on the suction valve. Press down on the spring retainer to insert the keepers Discharge Valve (Figure 93).
  • Page 66 Operation Manual Valve Inspection Inspect all seals and discard as necessary. Inspect the valve components. Discard excessively pitted or otherwise damaged components (Figure 96). For valves with minor wear or corrosion, recondition the valves as outlined in Valve Lapping. Excessive Pitting Valve Lapping Lapping is a polishing process in which two surfaces are rubbed together with an abrasive...
  • Page 67 Bareshaft Pump Bypass Valve Cartridge Replacement Remove the dump hose (Figure 99) from the Cartridge bypass valve. Using an adjustable wrench, remove the cartridge housing (Figure 100) from the valve. Pull the cartridge (Figure 101) from the housing. Inspect the diffuser (Figure 102) for jetting damage.
  • Page 68 Operation Manual Power End Checking Power End Oil Level (non-2000 Series Pumps) The most accurate method to check the oil is when the unit is on level ground and has not been in use for 5 to 8 hours. If the pump has been in use and the oil needs to be checked refer to the alternate Breather methods as outlined in “Alternate Oil Check...
  • Page 69 Bareshaft Pump Alternate Oil Check Methods Method 1: If the pump is at or near operating temperature and needs to be stopped during operation for purposes of checking the oil, stop the pump, wait 1-2 minutes and check the sight gauge.
  • Page 70 Operation Manual Changing the Power End Oil With the engine off, remove the drain plug (Figure 106) from the oil drain valve located on the back of the power end case. Place a container below the valve large enough to capture the oil. Refer to the oil capacities listed below.
  • Page 71 Bareshaft Pump Crosshead Pony Rod Seals Bottom Dead Center Removal Position Relieve pressure from the pump, shut off the Plunger engine and disengage the pump drive system Coupling Bolt (PTO, transmission, coupling, etc). Disconnect the water supply from the fluid end.
  • Page 72 Operation Manual 10. Rotate the pump crankshaft per one of the previous mentioned methods to draw the seal plate out of the powerframe. 11. Remove the O-ring and press the old seals from the plate. Discard the O-ring and seals. 12.
  • Page 73 Bareshaft Pump Connecting Rod Journal Bearings Rod Journal Bearing Removal Relieve pressure from the pump, shut off the engine and disengage the pump drive system (PTO , transmission, coupling, etc). Backplate Drain the oil from the power end as outlined in Capscrews “Changing the Power End Oil”...
  • Page 74 Operation Manual Journal Bearing Inspection Remove all oil from the crankshaft journal, bearing halves, connecting rod and rod cap. Oil on these sufaces can take up space causing the bearing clearance to be tighter that it actually is. Install a small strip of plasti-gauge onto the Plasti-Gauge end cap bearing (Figure 118).
  • Page 75 Bareshaft Pump Journal Bearing Installation Apply clean new oil to the new connecting rod journal bearing (inner diameter only) (Figure 120). Figure 120: Apply New Oil. Slide the bearing (Figure 121) into the connecting rod from below the crankshaft Journal Bearing journal.
  • Page 76 Operation Manual Pull the connecting rod (Figure 123) onto the crankshaft and place the rod cap into position aligned with the connecting rod. Ensure the stampings (Figure 124) on the cap and rod match. Screw in the capscrews by hand and then Connecting Rod tighten to the proper torque: •...
  • Page 77 Bareshaft Pump Crosshead and Connecting Rod Assembly Removal Remove the crankshaft from the pump as outlined in “Crankshaft” on page 75. Use two people to lift the crosshead/ connecting rod assemblies from the crankcase. The weight and location of the assemblies make it difficult for one person to remove on their own.
  • Page 78 Operation Manual Crosshead Inspection 10. The crosshead is now ready for installation in the pump. Use a micrometer to measure the outer diameter of the crosshead in three places and Crosshead Installation record the measurements. Place the crosshead/connecting rod Add the three measurements and divide by 3 assemblies into position inside of the to get the average diameter.
  • Page 79 Coupling Remove the pump from the unit. Refer to “UNx Bolts Pump Removal” in Jetstream Unit Manual. Open the rod box cover and remove the two capscrews that secure the plunger coupling (Figure 130) to the plunger and remove the coupling.
  • Page 80 Operation Manual 2000 Crankshaft Bearing Installation Heat the crankshaft bearings in a 250°F (121°C) oven for 20 minutes. Check the bearing color as they are heated. If the bearings turn blue or black they are overheated. When ready, with the crankshaft positioned vertically, remove from oven and slide the bearings onto each end of the crankshaft until they are fully seated.
  • Page 81 Bareshaft Pump Place the three crosshead/connecting rod assemblies into place (Figure 138). Allow clearance for the crankshaft by pushing them towards the fluid end. Once the crankshaft/bearings have cooled, appl oil to the bearings on both ends of the crankshaft. 10.
  • Page 82 Operation Manual 14. The crankshaft should now rotate by hand. If it doesn’t rotate, add shims to the input side seal plate to increase end play. Mount a magnetic base dial indicator on the crankshaft with the indicator pin on the inside edge of the rear opening, as shown.
  • Page 83 Removal Coupling Remove the pump from the unit. Refer to “UNx Pump Removal” in Jetstream Unit Manual. Open the rod box cover and remove the two capscrews that secure the plunger coupling to the plunger and remove the coupling. (Figure 146).
  • Page 84 • 3000 Series: 125 lb. (57 kg) • 3600/4200 Series: 325 lb. (147 kg) 13. Remove the bearings from the crankshaft. Contact Jetstream for assistance with this task. Installation Heat the new crankshaft bearings in a 250°F (121°C) oven for 20 minutes.
  • Page 85 Bareshaft Pump Place the three crosshead/connecting rod assemblies into place. Allow clearance for the crankshaft by pushing them towards the fluid end. (Figure 155) Figure 155: Place Crosshead/Connecting Rod Assembly Once the crankshaft/bearings have cooled, install crankshaft horizontal lifting tool (PN 58195) on the crankshaft output shaft and hoist as needed to install in powerframe.
  • Page 86 Operation Manual 11. Slide crankshaft into the drive side of the powerframe. Be sure to carefully guide the crankshaft into the previously installed race on the opposite side while clearing all the connecting rods. 12. Keeping the crankshaft supported with the crane, tap the drivers end side bearing race into the pump frame with a rubber mallet until flush with the outside of the case.
  • Page 87 Maintenance) Removal Remove the pump from the unit. Refer to “UNx Pump Removal” in Jetstream Unit Manual. Open the rod box cover and remove the two capscrews that secure the plunger coupling (Figure 163) to the plunger and remove the Figure 162: Install Rear Cover coupling on all 3 crosshead stubs.
  • Page 88 13. Place the crankshaft on the floor or workbench as needed. Remove the lifting tool. The weight of the 5200 Series crankshaft is approximately: 400 lb (182 kg) 14. Remove the bearings from the crankshaft. Contact Jetstream for assistance with this task. Figure 167: Pull Crankshaft from Pump...
  • Page 89 Bareshaft Pump 5200 Crankshaft Installation Heat the crankshaft bearings in a 250°F (121°C) oven for 20 minutes. Check the bearing color as they are heated. If the bearings turn blue or black they are overheated. CAUTION Temperatures in excess of 250°F (121°C) will damage the bearing.
  • Page 90 Operation Manual Install the same shims that were removed during disassembly onto the outboard frame cap. If the shims are not known, start with 1 of each color (yellow, white, blue, brown). Install the outboard frame cap using only 4 capscrews, lock washers, and flat washers.
  • Page 91 Bareshaft Pump 10. Slide crankshaft into the drive side of the powerframe. Be sure to carefully guide the Bearing Race crankshaft into the previously installed race on the opposite side while clearing all the connecting rods. 11. Keeping the crankshaft supported with the crane, tap the drivers end side bearing race into the pump frame with a rubber mallet until flush with the outside of the case.
  • Page 92 Operation Manual 20. Install the crankshaft counterweights on the two outer lobes. Torque to 120 ft-lbs. (163 Nm) (Figure 179) Counterweight Counterweight Figure 179: Install Counterweights 21. Install the three plunger couplings, connecting the plungers to the pony rods.(Figure 180) 22.
  • Page 93 Bareshaft Pump Cover seal replacement (non-2000 series) Remove top or rear cover as needed. Remove o-ring from groove. Clean out any debris. (Figure 181) Place the o-ring into the back face groove O-Ring Groove using o-ring lube to hold in place Figure 181: Remove O-Ring and Clean Groove Cut the o-ring cord a little oversized by overlapping the two ends.
  • Page 94 Operation Manual TROUBLESHOOTING PROBLEM POSSIBLE CAUSE REMEDY Nozzle too small Replace nozzle High discharge Restriction in hose or lance Test hose/lance without nozzle pressure Inaccurate pressure gauge Replace gauge Nozzle too large Replace nozzle Nozzle worn Replace nozzle Insufficient water tank level Fill tank, unplug vent Inaccurate pressure gauge Replace gauge...
  • Page 95 Bareshaft Pump PROBLEM POSSIBLE CAUSE REMEDY Needle valves not properly adjusted Adjust the needle valves Open the manifold drain with Insufficient water Air in the system pump on lubrication Remove debris from lubrication Plugged lines lines Leakage from pump Damaged valve seal Replace seals manifold uni-valve leakage holes...
  • Page 96 Jetstream offers multiple certified training classes designed and operators of new Jetstream waterblast units with the to promote safe, effecient, and profitable operation. knowledge and support needed to feel familiar, confident and satisfied with Jetstream equipment and personnel.
  • Page 97 Bareshaft Pump...
  • Page 98 3000/3600/4200 Series Pump Installation Guidelines ..Installation ................. 4200/3600/3000 Crankshaft Removal ....... 5200 Crankshaft ..............5200 Crankshaft Installation ..........Jetstream 5200 Bareshaft Pump Installation Guidelines ... Jetstream 5200Q Bareshaft Pump Installation Guidelines 17, Breaking in New Packing........... Jetstream Unit Design Guidelines ........Bypass ................
  • Page 99 Operation Manual Pump Electrical Connections..........PUMP OPERATION GUIDELINES ........Technical Notes ..............Top or Side Bypass............TRAINING ................. Recommended Equipment ..........Additional Training Opportunities ........Regulator Valve ..............FS Solutions Training............Removal ..............75, New Start-up Training ............. Rod Bearing Removal ............Safety Training ..............
  • Page 101 HOUSTON, TEXAS 77041 Adelaide, Australia (832) 590-1300 Powerjet Rentals FS Asia Glasgow, Scotand Shanghai, China (800) 231-8192 Asia Waterjet Asia Waterjet Dubai, UAE Singapore Total Blasting Johannesburg, South Africa P/N 65179-K © 2022 Jetstream of Houston, LLC. All rights reserved.

This manual is also suitable for:

Unx 3600 seriesUnx 4200 seriesUnx 5200Unx 5200q