GRUNDFOS INSTRUCTIONS
GRUNDFOS INSTRUCTIONSHSService instructions
English (GB)English (GB) Service instructionsOriginal service instructions1. General informationCONTENTS1.1 Hazard statementsPageThe symbols and hazard statements below may appear inGrundfos installation and operating instructions, safetyinstructions and service instructions.1. General information1.1 Hazard statements1.2 Notes2222.2.12.22.3Service toolsSpecial toolsStandard toolsTorque tools33333.3.13.23.33.4MaintenanceLubrication of pump bearingsLubrication of motor bearingsBall bearing greaseGrid g and assembling the productGeneral informationDismantling the pump, with sleeveDismantling the pump, without sleeveAssembling the pump, with sleeveAssembling the pump, without sleeveReplacing ring in the stuffing box, HS with sleeve444781113CAUTION5. Alignment5.1 Preliminary alignment5.2 Final alignment1414156. Identification6.1 Nameplate6.2 Type key1616177. Standard components and material specifications7.1 HS with sleeve7.2 HS without sleeve2020218.8.18.28.38.48.58.68.7Sectional drawingsHS with sleeve, construction type 1HS with sleeve, construction type 2HS with sleeve, construction type 3HS with sleeve, construction type 4HS without sleeve, construction type 1HS without sleeve, construction type 2HS, typical end view, non-drive end22222323242425259.9.19.29.3Exploded viewsCouplingHS with sleeveHS without sleeve2626273510. Disposing of the productIndicates a hazardous situation which, if not avoided,will result in death or serious personal injury.Indicates a hazardous situation which, if not avoided,could result in death or serious personal injury.Indicates a hazardous situation which, if not avoided,could result in minor or moderate personal injury.The hazard statements are structured in the following way:SIGNAL WORDDescription of hazardConsequence of ignoring the warning.- Action to avoid the hazard.1.2 NotesThe symbols and notes below may appear in Grundfosinstallation and operating instructions, safety instructions andservice instructions.Observe these instructions for explosion-proofproducts.A blue or grey circle with a white graphical symbolindicates that an action must be taken.A red or grey circle with a diagonal bar, possibly witha black graphical symbol, indicates that an actionmust not be taken or must be stopped.41Read this document before starting service work onthe product. Installation and service work mustcomply with local regulations and accepted codes ofgood practice.Observe the safety instructions in the installation andoperating instructions for the product.2DANGERIf these instructions are not observed, it may result inmalfunction or damage to the equipment.Tips and advice that make the work easier.
ABCDEFGHIJEnglish (GB)2. Service tools2.1 Special toolsPos.DescriptionFor pos.APunch (brass)BBearing heating inductor (for assembly)CRound nut toolFurther informationPart number54SV028253, 54-67b2.2 Standard toolsPos.DEDescriptionFor pos.Hexagon socketFurther information26c, 26d, 114, 114aOctagon socketPart number1 - 1/2"-1 - 5/16"-1 - 1/8"-15/16"-3/4"-9/16"-17, 20, 20a, 20b, 20c,20d, 20e, 20g9/16"-3/8"-For pos.Further informationPart numberSV21262.3 Torque toolsPos.DescriptionFTorque wrenchD, E200-800 Nm9x12 mm - 4-20 NmSV2092GTorque wrenchH9x12 mm - 20-100 NmSV026914x18 mm - 40-200 NmSV04009x12 mm - 1/2"SV029514x18 mmSV0401HRatchet insert toolD, E2.3.1 Tightening torquesThe position numbers in the following refer to section 7. Standardcomponents and material specifications on pages 20.Torque [Nm]Pos.DescriptionQuantityDimensionsPN 10DryPN 16LubricatedDryLubricated26c61/2"-13, 1.25"L75451026126d41/2"-13, 3.00"L754510261114114aScrew83/8"-16, 1.25"L3018412485/16"-18, 1.25"L161123143
English (GB)3. Maintenance4. Dismantling and assembling the product3.1 Lubrication of pump bearings4.1 General informationPump bearings are lubricated prior to delivery.Position numbersWe recommend relubricating intervals of 2000 operating hours.Depending on duty conditions this may, however, vary.Pump parts are indicated by numbers and refer to sections7. Standard components and material specifications and8. Sectional drawings.To refill the bearings with fresh grease, follow this procedure:2. Add enough grease to fill up 1/3 of the ball bearing.Service tools are indicated by letters and refer to section2. Service tools.3. Note the quantity required.Before dismantling4. Refit the bearing cap. Disconnect the supply voltage to the motor.Repeat this procedure the first three times. Based on the firstthree relubrications, determine the correct quantity of greaserequired. Close the isolating valves, if fitted, to avoid draining thesystem. Remove the electric cable in accordance with localregulations.1. Remove the bearing cap.For future relubrications, apply the established quantity of greasethrough the lubricating nipples.Before assemblyYou do not have to remove the bearing caps. Clean and check all parts.For every 10,000 operating hours or every two years: Replace defective parts by new parts.1. Remove the bearing caps from the pump. Order the necessary service kits.2. Remove old grease. Always replace the gaskets and O-rings when the pump isserviced.3. Thoroughly clean the bearing caps.4. Refill the bearings with fresh grease.5. Refill the bearing caps completely with fresh grease.6. Refit the bearing caps in accordance with the assemblyinstructions.During assemblyLubricate and tighten the screws and nuts to the correct torque.See section 2.3.1 Tightening torques.7. Start the pump briefly several times to distribute the grease inthe bearings and to prevent overheating of the grease.4.2 Dismantling the pump, with sleeveGrease specifications: See section 3.3 Ball bearing grease.The position numbers in the following refer to section 8.1 HS withsleeve, construction type 1 on page 22.Do not overgrease.Too much grease can cause overheating andpremature bearing failure.3.2 Lubrication of motor bearingsLubricate the motor bearings in accordance with the indicationson the motor nameplate.Grease specifications: See section 3.3 Ball bearing grease.3.3 Ball bearing grease4.2.1 HS with sleeve, construction type 1Removing the motor1. Remove the coupling guard.2. Remove the screws and nuts from the coupling halves.3. Carefully loosen and remove the spring using a screwdriver.4. Remove the screws holding the motor on the base frame.5. Lift off the motor.6. Loosen the set screws in the coupling flange of the pump.7. Pull the coupling flange off the pump shaft using a puller.Removing the bearings and shaft seals, non-drive endManufacturerLubricant1. Remove the four screws (114a) holding the bearing cover(113d).ShellDolium R2. Remove the bearing cover (113d) and gasket (113e).ExxonPolyrex3. Loosen the set screw in the bearing snap ring (54).SRI grease NLGI 24. Loosen the bearing snap ring (54) by moving it against thedirection of rotation.ChevronBlack pearl NLGI 2PhilipsPolytacTexacoPolystar RB3.4 Grid couplingIf the pump is coupled with a grid coupling, the grid coupling mustbe regreased at intervals.Normally, the interval is one year, but it can be shorter if theenvironment is aggressive or the operating conditions are harsh.Use the same grease for the coupling as for the ball bearings.See section 3.3 Ball bearing grease.Proceed as follows:1. Remove the coupling guards.2. Remove the two lubricating plugs.3. Pump grease into one of the lubricating holes to push the oldgrease out of the opposite hole.4. Keep pumping until the fresh grease comes out.5. Refit and fasten the two plugs.6. Mount the coupling guards again.45. Remove any marks from the set screws on the shaft non-driveend (51).6. Remove the screws (114).7. Pull the seal housing (124) off the shaft (51) using a puller,and then remove the gasket (109b).8. Pull the spring, washer and rotary shaft seal part (105) off theshaft (51).9. Pull the bearing (54) out of the seal housing (124).10. Remove the stationary shaft seal part (105). Use a punch, ifnecessary.
6. Remove the screws (114) or the nuts (36).1. Remove the key (11a).7. Pull the seal housing (124) off the shaft (51) using a puller,and then remove the slinger (79) and O-ring (109).2. Remove the four screws (114a) holding the bearing cover(113c).3. Remove the bearing cover (113c) and gasket (113e).4. Loosen the set screw in the bearing snap ring (53).5. Loosen the bearing snap ring (53) by moving it against thedirection of rotation.6. Remove any marks from the set screws on the shaft drive end(51).8. Pull the spring, washer and rotary shaft seal part (105) off theshaft (51).9. Remove the slinger (79), and then pull the bearing (54) out ofthe seal housing (124).10. Remove the stationary shaft seal part (105). Use a punch, ifnecessary.Removing the bearings and shaft seals, drive end7. Remove the screws (114).1. Remove the key (11a).8. Pull the seal housing (124) off the shaft (51) using a puller,and then remove the gasket (109b).2. Remove the four screws (114a) holding the bearing cover(113c).9. Pull the spring, washer and rotary shaft seal part (105) off theshaft (51).3. Remove the bearing cover (113c) and gasket (113e).10. Pull the bearing (53) out of the seal housing (124).5. Loosen the bearing snap ring (53) by moving it against thedirection of rotation.11. Remove the stationary shaft seal part (105). Use a punch, ifnecessary.4. Loosen the set screw in the bearing snap ring (53).Removing the upper pump casing6. Remove any marks from the set screws on the shaft drive end(51).1. Loosen the screws (26c), and remove them.7. Remove the screws (114) or the nuts (36).2. Loosen the screws (26d), and remove them (only pump typeHS 65-50-331).8. Pull the seal housing (124) off the shaft (51) using a puller,and then remove the slinger (79) and O-ring (109).3. Loosen the upper pump casing by means of a jacking screw(inch threads).9. Pull the spring, washer and rotary shaft seal part (105) off theshaft (51).4. Lift off the upper pump casing (6a).10. Remove the slinger (79), and then pull the bearing (54) out ofthe seal housing (124).Removing the shaft, impeller and gasket1. Lift the shaft (51), including the impeller (49) and wear rings(45b), free of the lower pump casing (6b).2. Remove the wear rings (45b).3. Remove the gasket (72a) from the pump casing (6b), andclean the packing face.Removing the impeller1. Remove the impeller nut (67a).2. Push the shaft until the key (11) is free of the impeller (49).3. Pull the shaft (51) out of the impeller (49), and remove it.4.2.2 HS with sleeve, construction type 2The position numbers in the following refer to section 8.2 HS withsleeve, construction type 2 on page 23.11. Remove the stationary shaft seal part (105). Use a punch, ifnecessary.Removing the upper pump casing1. Loosen the screws (26c, 26d), and remove them.2. Fit the screws (26c) in the dismounting holes, therebyloosening the rest of the pump casing (6a).3. Lift off the upper pump casing (6a).4. Remove the screws (26c) from the dismounting holes, andthen knock up the guide pins so that they are not damaged.Removing the shaft, impeller and gasket1. Lift the shaft (51), including the impeller (49) and wear rings(45b), free of the lower pump casing (6b).2. Remove the wear rings (45b).Removing the motor3. Remove the snap ring (65).1. Remove the coupling guard.2. Remove the screws and nuts from the coupling halves.4. Remove the gasket (72a) from the pump casing (6b), andclean the packing face.3. Carefully loosen and remove the spring using a screwdriver.Removing the impeller4. Remove the screws holding the motor on the base frame.1. Remove the shaft sleeve (116a, 116b).5. Lift off the motor.2. Remove the shaft sleeve O-ring (66).6. Loosen the set screws in the coupling flange of the pump.3. Push the shaft until the key (11) is free of the impeller (49).7. Pull the coupling flange off the pump shaft using a puller.4. Pull the shaft (51) out of the impeller (49), and remove it.Removing the bearings and shaft seals, non-drive end1. Remove the four screws (114a) holding the bearing cover(113d).2. Remove the bearing cover (113d) and gasket (113e).3. Loosen the set screw in the bearing snap ring (54).4. Loosen the bearing snap ring (54) by moving it against thedirection of rotation.5. Remove any marks from the set screws on the shaft non-driveend (51).5English (GB)Removing the bearings and shaft seals, drive end
English (GB)4.2.3 HS with sleeve, construction type 3Removing the shaft, impeller and gasketThe position numbers in the following refer to section 8.3 HS withsleeve, construction type 3 on page 23.1. Lift the shaft (51), including the impeller (49) and wear rings(45b), free of the lower pump casing (6b).Removing the motor2. Remove the wear rings (45b).1. Remove the coupling guard.3. Remove the snap ring (65).2. Remove the screws and nuts from the coupling halves.4. Remove the gasket (72a) from the pump casing (6b), andclean the packing face.3. Carefully loosen and remove the spring using a screwdriver.4. Remove the screws holding the motor on the base frame.Removing the impeller5. Lift off the motor.1. Loosen and remove the impeller nut (67a, 67b).6. Loosen the set screws in the coupling flange of the pump.2. Loosen the set screws (116e), and remove the shaft sleeve(116a, 116b).7. Pull the coupling flange off the pump shaft using a puller.Removing the bearings and shaft seals, non-drive end1. Remove the four screws (114a) holding the bearing cover(113d).3. Remove the shaft seal O-ring (66).4. Push the shaft until the key (11) is free of the impeller (49).5. Pull the shaft (51) out of the impeller (49), and remove it.2. Remove the bearing cover (113d) and gasket (113e).4.2.4 HS with sleeve, construction type 43. Loosen the set screw in the bearing snap ring (54) (only pumptype HS 100-80-242).The position numbers in the following refer to section 8.4 HS withsleeve, construction type 4 on page 24.4. Loosen the bearing snap ring (54) by moving it against thedirection of rotation (only pump type HS 100-80-242).Removing the motor5. Remove any marks from the set screws on the shaft non-driveend (51) (only pump type HS 100-80-242).2. Remove the screws and nuts from the coupling halves.6. Remove the snap ring (54d).7. Remove the screws (114).8. Pull the seal housing (124) off the shaft (51) using a puller,and then remove the slinger (79) and O-ring (109).9. Pull the spring, washer and rotary shaft seal part (105) off theshaft (51).10. Pull the bearing (54) out of the seal housing (124).11. Remove the stationary shaft seal part (105). Use a punch, ifnecessary.Removing the bearings and shaft seals, drive end1. Remove the coupling guard.3. Carefully loosen and remove the spring using a screwdriver.4. Remove the screws holding the motor on the base frame.5. Lift off the motor.6. Loosen the set screws in the coupling flange of the pump.7. Pull the coupling flange off the pump shaft using a puller.Removing the bearings and shaft seals, non-drive end1. Remove the four screws (114a) holding the bearing cover(113d).2. Remove the bearing cover (113d) and gasket (113e).3. Remove the snap ring (54d) and spacer ring (54c).1. Remove the key (11a).4. Remove the screws (114b).2. Remove the four screws (114a) holding the bearing cover(113c).6. Pull the bearing housing (113) off the shaft (51).3. Remove the bearing cover (113c) and gasket (113e).7. Pull the bearing (54) and spacer ring (54c) out of the bearinghousing (113).4. Remove the screws (114).5. Loosen the bearing housing (113) using expansion bolts.5. Pull the seal housing (124) off the shaft (51) using a puller,and then remove the slinger (79) and O-ring (109).8. Remove the lip seal (113f). Use a punch, if necessary.6. Pull the spring, washer and rotary shaft seal part (105) off theshaft (51).10. Remove the screws (58a).7. Pull the bearing (53) out of the seal housing (124).12. Remove the gasket (110a) or the O-ring (110).8. Remove the stationary shaft seal part (105). Use a punch, ifnecessary.13. Remove the stationary shaft seal part (105). Use a punch, ifnecessary.Removing the upper pump casing14. Remove the seal housing screws (114).9. Remove the slinger (79).11. Remove the seal cover (58).1. Loosen the screws (26c, 26d), and remove them.15. Loosen the seal housing (124) using expansion bolts.2. Remove the vent screw (17), and then fit a lifting eye in thethread.16. Remove the seal housing (124).3. Fit the screws in the dismounting holes, thereby loosening therest of the pump casing (6a).18. Pull the spring, washer and rotary shaft seal part (105) off theshaft (51).4. Lift off the upper pump casing (6a).5. Remove the screws (26c) from the dismounting holes, andthen knock up the guide pins so that they are not damaged.617. Remove the O-ring (109, 109a).
4.3 Dismantling the pump, without sleeve1. Remove the key (11a).4.3.1 HS without sleeve, construction type 12. Remove the four screws (114a) holding the bearing cover(113c).3. Remove the bearing cover (113c) and gasket (113e).4. Remove the screws (114b).5. Loosen the bearing housing (113) using expansion bolts.6. Pull the bearing housing (113) off the shaft (51).7. Pull the bearing (54) out of the bearing housing (113).8. Remove the lip seal (113f). Use a punch, if necessary.9. Remove the slinger (79).10. Remove the screws (58a).11. Remove the seal cover (58).12. Remove the gasket (110a) or the O-ring (110).13. Remove the stationary shaft seal part (105). Use a punch, ifnecessary.14. Remove the seal housing screws (114).15. Loosen the seal housing (124) using expansion bolts.16. Remove the seal housing (124).17. Remove the O-ring (109, 109a).18. Pull the spring, washer and rotary shaft seal part (105) off theshaft (51).Removing the upper pump casingEnglish (GB)Removing the bearings and shaft seals, drive endThe position numbers in the following refer to section 8.5 HSwithout sleeve, construction type 1 on page 24.Removing the motor1. Remove the coupling guard.2. Remove the screws and nuts from the coupling halves.3. Carefully loosen and remove the spring using a screwdriver.4. Remove the screws holding the motor on the base frame.5. Lift off the motor.6. Loosen the set screws in the coupling flange of the pump.7. Pull the coupling flange off the pump shaft using a puller.Removing the bearings and shaft seals, non-drive end1. Remove the four screws (114a) holding the bearing cover(113d).2. Remove the bearing cover (113d) and gasket (113e).3. Loosen the round nut (54e).4. Remove the round nut (54e) and the washer (54c) from theshaft non-drive end.5. Remove the screws (114).6. Pull the seal housing (124) off the shaft (51) using a puller,and then remove the gasket (109b).1. Loosen the screws (26c, 26d), and remove them.7. Pull the spring, washer and rotary shaft seal part (105) off theshaft (51).2. Fit the screws in the dismounting holes, thereby loosening therest of the pump casing (6a).8. Pull the bearing (54) out of the seal housing (124).3. Lift off the upper pump casing (6a). Use lifting straps on thelifting brackets of the pump casing.4. Remove the screws (26c) from the dismounting holes, andthen knock up the guide pins so that they are not damaged.Removing the shaft, impeller and gasket1. Lift the shaft (51), including the impeller (49) and wear rings(45a, 45b or 45c), free of the lower pump casing (6b).2. Remove the wear rings (45a, 45b or 45c).3. Remove the snap ring (65) (only pump type HS 200-150-483).4. Remove the gasket (72a) from the pump casing (6b), andclean the packing face.9. Remove the stationary shaft seal part (105). Use a punch, ifnecessary.Removing the bearings and shaft seals, drive end1. Remove the key (11a).2. Remove the four screws (114a) holding the bearing cover(113c).3. Remove the bearing cover (113c) and gasket (113e).4. Remove the screws (114).5. Pull the seal housing (124) off the shaft (51) using a puller,and then remove the gasket (109b).6. Pull the spring, washer and rotary shaft seal part (105) off theshaft (51).Removing the impeller7. Pull the bearing (53) out of the seal housing (124).1. Loosen and remove the impeller nut (67a, 67b).8. Remove the stationary shaft seal part (105). Use a punch, ifnecessary.2. Loosen the set screws (116e), and remove the outer shaftsleeve (116d) and inner shaft sleeve (116c) or the shaft sleeve(116).3. Remove the shaft seal O-ring (66).4. Push the shaft until the key (11) is free of the impeller (49).5. Pull the shaft (51) out of the impeller (49), and remove it.Removing the upper pump casing1. Loosen the screws (26c), and remove them.2. Loosen the screws (26d), and remove them (only pump typeHS 65-50-331).3. Loosen the upper pump casing by means of a jacking screw(inch threads).4. Lift off the upper pump casing (6a).Removing the shaft, impeller and gasket1. Lift the shaft (51), including the impeller (49) and wear rings(45b), free of the lower pump casing (6b).2. Remove the wear rings (45b).3. Remove the gasket (72a) from the pump casing (6b), andclean the packing face.Removing the impeller1. Remove the impeller nut (67b).2. Push the shaft until the key (11) is free of the impeller (49).3. Pull the shaft (51) out of the impeller (49), and remove it.7
English (GB)4.3.2 HS without sleeve, construction type 2Removing the upper pump casingThe position numbers in the following refer to section 8.6 HSwithout sleeve, construction type 2 on page 25.1. Loosen the screws (26c, 26d), and remove them.Removing the motor1. Remove the coupling guard.2. Remove the screws and nuts from the coupling halves.3. Carefully loosen and remove the spring using a screwdriver.4. Remove the screws holding the motor on the base frame.5. Lift off the motor.6. Loosen the set screws in the coupling flange of the pump.7. Pull the coupling flange off the pump shaft using a puller.2. Fit the screws in the dismounting holes, thereby loosening therest of the pump casing (6a).3. Lift off the upper pump casing (6a). Use lifting straps on thelifting brackets of the pump casing.4. Remove the screws (26c) from the dismounting holes, andthen knock up the guide pins so that they are not damaged.Removing the shaft, impeller and gasket1. Lift the shaft (51), including the impeller (49) and wear rings(45a, 45b or 45c), free of the lower pump casing (6b).2. Remove the wear rings (45a, 45b or 45c).Removing the bearings and shaft seals, non-drive end3. Remove the snap ring (65) (only pump type HS 200-150-483).1. Remove the four screws (114a) holding the bearing cover(113d).4. Remove the gasket (72a) from the pump casing (6b), andclean the packing face.2. Remove the bearing cover (113d) and gasket (113e).3. Loosen the round nut (54e). Remove the round nut (54e) andthe washer (54c) from the shaft non-drive end.4. Remove the screws (114b).5. Loosen the bearing housing (113) using expansion bolts.Removing the impeller1. Loosen and remove the impeller nut (67b).2. Push the shaft until the key (11) is free of the impeller (49).3. Pull the shaft (51) out of the impeller (49), and remove it.6. Pull the bearing housing (113) off the shaft (51).4.4 Assembling the pump, with sleeve7. Pull the bearing (54) and tab washer (54d) out of the bearinghousing (113).4.4.1 HS with sleeve, construction type 18. Remove the lip seal (113f). Use a punch, if necessary.Fitting the impeller9. Remove the slinger (79).10. Remove the screws (58a).11. Remove the seal cover (58).12. Remove the gasket (110a) or the O-ring (110).13. Remove the stationary shaft seal part (105). Use a punch, ifnecessary.14. Remove the seal housing screws (114).15. Loosen the seal housing (124) using expansion bolts.16. Remove the seal housing (124).17. Remove the O-ring (109, 109a).18. Pull the rotary shaft seal part (105) off the shaft (51).Removing the bearings and shaft seals, drive end1. Remove the key (11a).2. Remove the four screws (114a) holding the bearing cover(113c).3. Remove the bearing cover (113c) and gasket (113e).4. Remove the screws (114b).5. Loosen the bearing housing (113) using expansion bolts.6. Pull the bearing housing (113) off the shaft (51).7. Pull the bearing (54) out of the bearing housing (113).8. Remove the lip seal (113f). Use a punch, if necessary.9. Remove the slinger (79).10. Remove the screws (58a).11. Remove the seal cover (58).12. Remove the gasket (110a) or the O-ring (110).13. Remove the stationary shaft seal part (105). Use a punch, ifnecessary.14. Remove the seal housing screws (114).15. Loosen the seal housing (124) using expansion bolts.16. Remove the seal housing (124).17. Remove the O-ring (109, 109a).18. Pull the rotary shaft seal part (105) off the shaft (51).81. Fit the shaft (51) in the impeller (49).2. Fit the impeller nut (67a) on the shaft, and tighten by hand.3. Centre the shaft in the impeller (49) by measuring from theimpeller hub to the shoulder on each side of the shaft (51).4. Tighten the impeller nut (67a).Fitting the gaskets, impeller and shaft1. Draw the outline of the old gasket (72a) on a new gasketmaterial (gasket thickness 0.8 mm), make holes for thestaybolts, and coarsely cut out the gasket.2. Fit the guide screws in the lower pump casing (6b).3. Fit the gasket (72a), and cut it out.4. Fit the wear rings (45b) on the impeller (49), and check thatthey can rotate freely.5. Lift the shaft, impeller and wear rings home in the pumpcasing. Make sure that the pins at the bottom of the pumpcasing engage with the holes of the wear rings.
4.4.2 HS with sleeve, construction type 21. Clean the packing face of the upper pump casing (6a), and fitthe pump casing.Fitting the impeller2. Knock the guide pins down into the lower pump casing (6b).English (GB)Fitting the upper pump casing1. Fit the shaft (51) in the impeller (49).2. Fit the O-ring (66) in the removed shaft sleeve (116a, 116b).3. Remove the guide screws in the lower pump casing (6b).4. Fit the screws (26d), and tighten them, but leave loose, in theorder shown in fig. 1 (only pump type HS 65-50-331).5. Fit the screws (26c), and tighten them, but leave loose, in theorder shown in fig. 1.3. Fit the removed sleeve (116a or 116b) on the shaft, andtighten by hand.4. Centre the shaft in the impeller (49) by measuring from theimpeller hub to the shoulder on each side of the shaft (51).5. Tighten the shaft sleeve (116a or 116b).Fitting the gaskets, impeller and shaft1. Draw the outline of the old gasket (72a) on a new gasketmaterial (gasket thickness 0.8 mm), make holes for thestaybolts, and coarsely cut out the gasket.TM04 1865 12082. Fit the guide screws in the lower pump casing (6b).Fig. 1Tightening order in principle for screws pos. 26c3. Fit the gasket (72a), and cut it out.4. Fit the snap ring (65).5. Fit the wear rings (45b) on the impeller (49), and check thatthey can rotate freely.6. Lift the shaft, impeller and wear rings home in the pumpcasing. Make sure that the pins at the bottom of the pumpcasing engage with the holes of the wear rings.6. Tighten the screws (26d) to the correct torque. See section2.3.1 Tightening torques. The tightening order is shown in fig.1 (only pump type HS 65-50-331).Fitting the upper pump casing7. Tighten the screws (26c) to the correct torque. See section2.3.1 Tightening torques. The tightening order is shown in fig.1.2. Knock the guide pins down into the lower pump casing (26b).8. Check that the shaft can rotate freely.9. Remove excess gasket material.1. Clean the packing face of the upper pump casing (6a), and fitthe pump casing.3. Remove the guide screws in the lower pump casing (6b).4. Fit the screws (26c, 26d), and tighten them, but leave loose, inthe order shown in fig. 2.Fitting the bearings and shaft seals1. Clean the O-ring on the shaft seal rotary part (105). Then fit italong with the washer and spring. Start at the non-drive end.2. Press the rotary shaft seal part (105) home in the seal housing(124).TM04 1865 12083. Fit the seal housing (124), gasket (113e) and slinger (79).Note that the slinger must be placed between the stationaryshaft seal part and the bearing.4. Fit the screws (114). Cross-tighten to the correct torque. Seesection 2.3.1 Tightening torques.5. Make sure to polish off any burrs on the shaft drive end.6. Repeat steps 1.-4. for the drive end.7. Check that the shaft can rotate freely.8. Lubricate the bearing (54), and press it home in the sealhousing (124). For lubricant, see section 3.3 Ball bearinggrease.9. Fit the bearing snap ring (54) by moving it with the direction ofrotation. Then tighten the two set screws.Fig. 2Tightening order in principle for screws pos. 26c5. Tighten the screws (26c, 26d) to the correct torque. Seesection 2.3.1 Tightening torques. The tightening order isshown in fig. 2.6. Check that the shaft can rotate freely.7. Remove excess gasket material.10. Lubricate the bearing (54). For lubricant, see section2. Service tools.11. Fit the gasket (113e), bearing cover (113d) and screws (114a).Cross-tighten to the correct torque. See section2.3.1 Tightening torques.12. Fit the bearing snap ring (53) by moving it with the direction ofrotation. Then tighten the two set screws.13. Lubricate the bearing (53). For lubricant, see section 3.3 Ballbearing grease.14. Fit the gasket (113e), bearing cover (113c) and screws (114a).Cross-tighten to the correct torque. See section2.3.1 Tightening torques.15. Check that the shaft can rotate freely.16. Fit the key (11a).9
Fitting the bearings and shaft seals2. Press the rotary shaft seal part (105) home in the seal housing(124).3. Fit the O-ring (109) on the seal housing (124).4. Fit the seal housing (124) and the slinger (79). Note that theslinger must be placed between the stationary shaft seal partand the bearing.TM04 1865 1208English (GB)1. Clean the O-ring on the shaft seal rotary part (105). Then fit italong with the washer and spring. Start at the non-drive end.5. Fit the screws (114) or the nuts (36). Cross-tighten to thecorrect torque. See section 2.3.1 Tightening torques.6. Make sure to polish off any burrs on the shaft drive end.7. Repeat ste
Chevron SRI grease NLGI 2 Black pearl NLGI 2 Philips Polytac Texaco Polystar RB. English (GB) 5 Removing the bearings and shaft seals, drive end 1. Remove the key (11a). 2. Remove the four screws (114a) holding the bearing cover (113c). 3. Remove the bearing cover (113c) and gasket (113e
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Grundfos UPS 15-35, from 36 to 165 F (2 to 73 C). Grundfos UP(S) 15 pump with timer, maximum water temperature 150 F (65 C). 4. Operating conditions Grundfos UP(S) Series 15 pumps are designed for indoor use only. Grundfos UP(S)15 series pumps with stainless steel or bronze volutes can be used in both open and closed systems.
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Implementing Grundfos Direct Sensors in New Products 4 Operational Principles This chapter explains the basic operating principles of the Grundfos Direct Sensors Vortex Flow Sensor (VFS) and Relative Pressure Sensor (RPS). 4.1 Vortex Flow Sensor The Grundfos Direct Sens
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Introduction 3 1. Introduction The Grundfos PC Tool E-products enables end-users and service technicians to maintain and service Grundfos E-motors, E-pumps and controllers. The PC Tool E-products communicates with GENIbus products from a PC running Microsoft Windows. GENIbus is short for: Grundfos Electronics Network Intercommunication bus. The PC Tool E-products enables you to
