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MSS

Series

Specifications Continued

Fastener Torque Specifications

Item

Metric

Standard

Precision leveling foot top cradle nuts

34 N-m

25 Lb-ft

Motor adapter bolts

Refer to motor manufacturer for

bolt sizes/ specifications

Support bracket adjustment bolts

81 N-m

60 Lb-ft

Inlet housing bolts MSS-15 through MSS-75

33 N-m

24 Lb-ft

Inlet housing bolts (HPSC) MSS-15 through MSS-75

33 N-m

24 Lb-ft

End shell flange bolts MSS-15 through MSS-120

81 N-m

60 Lb-ft

Series shell flange bolts MSS-15 through MSS-120

81 N-m

60 Lb-ft

Discharge housing retaining clip cap screws

10 N-m

7 Lb-ft

Pump shaft nut (balance disc nut)

MSS-15 through MSS-75

68 N-m

50 Lb-ft

Pump support bracket anchor bolt

108 N-m

80 Lb-ft

Stage split cone nut MSS-40 through MSS-75

54 N-m

40 Lb-ft

Coupling set screws (M6/ M10)

4 N-m/ 14 N-m

3 Lb-ft/ 10 Lb-ft

Pump Alignment Specifications

Motor Adapter Gap Tolerances for non-uniform gaps

Good ≤

0.381 mm 0.015"

Balance Disc Specifications

Pump Model

Original Thickness When New Wear Limit - 0.508 mm 0.020")

MSS-15 through MSS-75

13.5 mm (0.531")

13.0 mm (0.511")

Lubricants and Compounds

Lubricant

ASTM D1257

Standard Glycerine or fresh water with soap

Anti-seize compound

Compliant with specific system

Содержание MSS Series

Страница 1: ...w fedco usa com ONE COPY OF THIS MANUAL MUST REMAIN WITH THE EQUIPMENT AT ALL TIMES Original Instruction English Version OVERHAUL MANUAL Models MSS 15 MSS 20 MSS 30 MSS 50 MSS 70 MSS 40 MSS 55 MSS 75...

Страница 2: ...0 1 2 0 1 5 R E G I S T E R E D ISO 9 0 0 1 2 0 1 5 R E G I S T E R E D CE Stamp CE marking confirms that specific products are in compliance with European Union requirements This allows FEDCO s produ...

Страница 3: ...technical characteristics of the membrane process FEDCO pumps only cover flows and pressures found in BWRO and seawater SWRO applications They are designed for clean fluids and are optimized for typic...

Страница 4: ...ponents MSS 40 55 75 11 Mechanical Seal Removal 12 Mechanical Seal Installation 15 HPSC Mechanical Seal Removal 18 HPSC Mechanical Seal Installation 21 Shaft Position Sensor Removal 24 Shaft Position...

Страница 5: ...20 30 only X X 15 Impeller X X 16 Series spacer MSS 15 20 30 50 70 two shell pumps only X X 17 Series flange O ring X X X X 18 Discharge ring 19 Stage spacer custom end spacer X 20 Shaft washer balan...

Страница 6: ...mpany www fedco usa com 6 Figure 1 MSS A Service Parts Kits Components 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 48 49 50 23...

Страница 7: ...operation To ensure that safe operating and maintenance procedures are followed opera tors should develop and keep up a program of safety checks and current instructions This manual contains certain o...

Страница 8: ...FEDCO representative WARNING NEVER operate the pump equipment below the minimum flow rate when dry without priming without proper guards and safety devices installed with the discharge valve closed w...

Страница 9: ...O ring 3 Inlet housing bolts 16 Shell flange bolts 4 Inlet housing O ring 17 End shell 5 Inlet housing 18 Discharge housing O ring 6 High pressure seal carrier O ring if equipped 19 Discharge housing...

Страница 10: ...echanical seal shaft washer 23 Cavity cover 6 Rotating seal retaining ring 24 Balance disc 7 Inlet O ring 25 Cavity cover O ring 8 Split collar retaining ring 26 Discharge housing O ring 9 Split colla...

Страница 11: ...y 4 Mechanical seal 21 Cavity cover 5 Mechanical seal shaft washer 22 Balance disc 6 Rotating seal retaining ring 23 Cavity cover O ring 7 Inlet O ring 24 Discharge housing O ring 8 Inlet ring 25 Bala...

Страница 12: ...r repair Mechanical Seal Removal 1 Drain the piping and pump 2 Disconnect the inlet and outlet piping 3 Loosen the screws and remove the coupling guards Figure 7 Support Bracket Anchor Bolt Removal Fi...

Страница 13: ...ully slide pump 30 5 cm 12 inches away from motor NOTES Make sure to support inlet end of the pump on support bracket s 6 Remove the nuts and the top cradle from the precision leveling foot Figure 10...

Страница 14: ...ring from the inlet housing 9 Remove the motor adapter and shipping plug from the inlet housing Figure 13 Removing Inlet Retaining Ring Figure 12 Removing Motor Adapter and Shipping Plug Figure 11 Re...

Страница 15: ...the shaft retaining ring the inlet seal bore and the pump shaft for any damage Remove any oil or dirt with a clean cloth 11 Apply soap and water to the shaft and us ing a suitable tool through the in...

Страница 16: ...taining ring into the groove on the inlet housing NOTES Make sure the inlet retaining ring is completely seated in the inlet housing groove Figure 19 Installing Shipping Plug Figure 18 Installing Inle...

Страница 17: ...Final Pump Alignment from the MSS Installation Operation Manual 6 Apply system compliant anti seize com pound into the pump shaft keyway and install the pump shaft key NOTES Key should fit securely wi...

Страница 18: ...s 1 through 7 in Mechanical Seal Removal removal procedure 2 Disconnect the drain line and vent line s from the high pressure seal carrier Figure 24 Disconnecting Drain Vent Lines 1 2 3 4 5 6 7 8 9 10...

Страница 19: ...Seal Carrier Figure 26 Removing Motor Adapter and Shipping Plug Figure 25 Removing Inlet Housing Bolts 5 Remove the high pressure seal carrier from the inlet housing 4 Remove the motor adapter and sh...

Страница 20: ...ve the shaft retaining ring HP shaft bushing and O ring NOTES If retaining ring appears worn or dis torted replace it NOTES The graphite shaft sleeve retaining ring does not need to be removed unless...

Страница 21: ...r O ring HPSC Mechanical Seal Installation 1 Lubricate and install a new O ring with the HP shaft bushing and shaft retaining ring NOTES Make sure the anti rotation pin slot is aligned with the top of...

Страница 22: ...the shipping plug is installed with the stepped portion of the bushing facing inward toward the motor adapt er 4 Position the high pressure seal carrier against inlet housing NOTES Make sure graphite...

Страница 23: ...connected to a low pressure manifold behind the first high pressure pump in the train Un der no circumstances should the vent line be plugged A plugged vent line will result in insuf ficient water lu...

Страница 24: ...fore carrying out component re placement procedures Follow all Lock out Tag out procedures developed by your company before starting any maintenance or repair Shaft Position Sensor Removal 1 Disconnec...

Страница 25: ...mporary power supply to the shaft position sensor which will allow the sensor to rotate 2 Loosely thread the shaft position sensor into the spacer plate Figure 43 Shaft Collar Inspection SHAFT COLLAR...

Страница 26: ...te the sensor a further one quarter 1 4 turn to ensure no mis adjustment has occurred 5 Once the sensor is properly adjusted dis connect the sensor from the temporary power supply and permanently conn...

Страница 27: ...ription Item Description 1 Cap screw 10 Lock washer 2 Lock washer 11 Washer 3 Retaining clip 12 Balance disc 4 Discharge housing retaining ring 13 Balance disc key 5 Discharge housing O ring 14 Balanc...

Страница 28: ...ng 4 Remove the throttle nipple from the dis charge housing ELECTRICAL HAZARD Make sure to disconnect the power supply to the motor before carrying out component re placement procedures Follow all Loc...

Страница 29: ...52 Removing Discharge Housing Figure 51 Removing Discharge Housing Cap Screws 8 Remove the cavity cover with O ring 7 Remove the discharge housing retaining ring and discharge housing with O ring fro...

Страница 30: ...Securing Pump Shaft Figure 54 Removing Coupling Guards SUITABLE STRAP OR CHAIN WRENCH 11 Remove the shaft nut lock washer and washer from the pump shaft 10 Lock the flexible coupling in place with a s...

Страница 31: ...co usa com 31 Figure 58 Removing Balance Disc Washer and Key Figure 57 Removing Bearing Carrier and Balance Disc 13 Remove the balance disc key and washer from the pump shaft 12 Remove the bearing car...

Страница 32: ...place if necessary 2 Measure the balance disc outer hub thick ness Refer to the Balance Disc Wear Chart for wear limit specifications The maximum acceptable balance disc wear is 0 508 mm 0 020 If the...

Страница 33: ...disc key NOTES Make sure the balance disc keyway is on top and the key is installed with the rounded end facing outward toward the discharge hous ing Balance Disc Installation 1 Carefully install the...

Страница 34: ...NOTES Make sure to align throttle nipple opening with the bottom of the pump Figure 65 Installing Balance Disc Washers and Nut APPLY SYSTEM COMPLIANT ANTI SEIZE COMPOUND 4 Apply system compliant anti...

Страница 35: ...manual Figure 69 Inspecting Discharge Housing Alignment 8 Temporarily install the throttle nipple to ensure the cavity cover and the discharge housing are properly aligned 9 Remove the throttle nipple...

Страница 36: ...o prevent dislodging the throttle nipple O ring Figure 72 Taping Throttle Nipple THREAD SEALING TAPE LUBRICATE 12 Apply thread sealing tape to the throttle nipple threads and generously lubricate the...

Страница 37: ...www fedco usa com 37 Figure 75 Installing Coupling Guards Figure 74 Connecting Drain Line 15 Remove the strap or chain wrench and install the coupling guards and tighten the screws 14 Reconnect the be...

Страница 38: ...Strap wrench Torque wrench NOTES Consult a FEDCO representative for all information regarding assembly specifications ELECTRICAL HAZARD Make sure to disconnect the power supply to the motor before car...

Страница 39: ...and the top cradle from the precision leveling foot 5 Remove the motor adapter bolts and wash ers 4 Remove the anchor bolts and washers from shell support bracket s Pump Overhaul Continued Figure 80...

Страница 40: ...3 Using proper lifting methods safely lift unit from base and place on flat surface in the vertical position Figure 82 Disconnecting Drain Line 8 Disconnect the bearing drain line from the throttle ni...

Страница 41: ...d part of the shell assembly and will come out when shell is removed Figure 85 Balance Disc Removal 15 Proceed by preforming the Balance Disc Removal procedure as described earlier in this manual NOTE...

Страница 42: ...individually These are considered part of the shell assembly and will come out when shell is removed Figure 88 Stage Removal 4 Remove all stage components diffusers impellers and stage spacers NOTES M...

Страница 43: ...91 First Stage Spacer Removal 7 Inspect the inlet ring for excessive wear NOTES Remove the inlet ring and replace if necessary The inlet discharge rings are not included in any field service kits but...

Страница 44: ...the shaft collar sleeve NOTES The start spacer must contact the col lar sleeve as shown If the collar sleeve s cup side if facing up it is on upside down NOTES The first stage spacer is dimension all...

Страница 45: ...ifi cations section of this manual NOTES Make sure there is no gap between flanges after tightening bolts Figure 97 Stage Installation 6 For Single Shell Pumps Install all stage components stage space...

Страница 46: ...ing 10 Carefully lower the end shell over the stag es using safe lifting and handling methods Align the end shell flange with the series shell flange serial number stamping op posite to inlet Install...

Страница 47: ...13 Remove the gauge block and shaft locking wrench 14 Install and apply tension to approved lifting straps as described in the Lifting and Han dling section of the MSS Installation Manual Using proper...

Страница 48: ...nal Pump Alignment Pump Overhaul Continued NOTES If a mechanical seal replacement is necessary refer to the Mechanical Seal Re moval and Mechanical Seal Installation section of this manual 20 Refer to...

Страница 49: ...e motor before carrying out component replace ment procedures Follow all Lock out Tag out procedures developed by your company before starting any maintenance or repair Stage Removal 1 Follow the step...

Страница 50: ...age Removal 4 Remove all stage components diffusers clamping neck rings floating neck rings impellers split cones and split cone nuts Figure 108 Discharge Ring Removal 3 Remove the discharge ring Pump...

Страница 51: ...ing neck ring from the inlet ring 9 Inspect the inlet ring for excessive wear NOTES Remove the inlet ring and replace if necessary The inlet discharge rings are not included in any field service kits...

Страница 52: ...mping Neck Ring Installation 2 Install a floating neck ring and clamping neck ring from into the inlet ring Pump Overhaul Continued Figure 116 Shaft Installation b Slowly lower the pump shaft into the...

Страница 53: ...ring and diffuser 11 Install a fully assembled diffuser diffuser diffuser bearing floating neck ring and clamping neck ring onto the pump shaft and seat the diffuser assembly onto the spacer washers 1...

Страница 54: ...bly 18 For Single Shell Pumps Continue to assemble pump stages as de scribed in previous steps until all end shell stages have been assembled Two Shell Pumps Continue to assemble pump stages as descri...

Страница 55: ...es shell O ring Continue to assemble pump stages as described in series shell steps until all end shell stages have been assembled NOTES Verify diffuser bushings have been pre installed before assembl...

Страница 56: ...inlet Figure 127 Balance Disc Installation 24 Proceed by preforming the Balance Disc Installation procedure as described earlier in this manual NOTES Although pump is orientated vertically the balanc...

Страница 57: ...the MSS Installation Manual for pump re alignment procedures Figure 129 Installing the Drain Line 28 Lubricate and install the throttle nipple O ring into the discharge housing 29 Apply thread sealin...

Страница 58: ...e thoroughly before use Internal components should be dried with a clean lint free cloth before assembly Nameplate Protect nameplate integrity Use considerable caution when cleaning Do not use product...

Страница 59: ...hell flange bolts MSS 15 through MSS 120 81 N m 60 Lb ft Discharge housing retaining clip cap screws 10 N m 7 Lb ft Pump shaft nut balance disc nut MSS 15 through MSS 75 68 N m 50 Lb ft Pump support b...

Страница 60: ...______________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________...

Страница 61: ...ernes Drive Monroe MI 48162 USA Telephone 1 734 241 3935 Fax 734 241 5173 Email sales fedco usa com FEDCO UAE Plot No 598 Showroom No 7 Rajneesh Traders Showroom Bldg Street 2 Dubai Invest Park 1 P O...

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