Pentair Myers Aplex Series Installation And Service Manual
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Pentair Myers Aplex Series Installation And Service Manual

Pentair Myers Aplex Series Installation And Service Manual

Triplex pumps
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MODELS
MA-60M, MA-60H, SC-95
TRIPLEX PUMPS
INSTALLATION AND SERVICE MANUAL
NOTE! To the installer: Please make sure you provide this manual to the owner of the equip ment or to the responsible
party who maintains the system.
Part # AP-03-103 | © 2018 Pentair plc. | 04/10/18

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Summary of Contents for Pentair Myers Aplex Series

  • Page 1 INSTALLATION AND SERVICE MANUAL NOTE! To the installer: Please make sure you provide this manual to the owner of the equip ment or to the responsible party who maintains the system. Part # AP-03-103 | © 2018 Pentair plc. | 04/10/18...

  • Page 2: Table Of Contents

    Engineering Data Installing the Gland ..........16 MA-60M ..............3 Installing the Stuffing Box........16 MA-60H..............4 Connecting the Plunger ..........16 SC-95 ................ 5 Packing ..............16 Plungers ............16-17 Dimensional Data............6 Dual-Stem Guided and Disc Valve Systems ..... 17 Installation, Operation, Lubrication, Maintenance General ..............17 and Storage Instructions ..........7 Disc Valve Construction ..........17...

  • Page 3: Engineering Data

    MA-60M ENGINEERING DATA MA-60M ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump MA-60M Available Liquid End Materials, ASTM: Nickel Aluminum Bronze B148-C955 Maximum Input HP at Speed 60 at 550 rpm Forged Steel Block A105 Rated Continuous Plunger Load 4,752 lbs.
  • Page 4 MA-60H ENGINEERING DATA MA-60H ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump MA-60H Plunger Type Rokide Stainless Steel: ® Chromium Oxide-Coated 416 S.S. Maximum Input HP at Speed 60 at 550 rpm Stuffing Boxes, Field-Removable and Replaceable: Rated Continuous Plunger Load 4,752 lbs.
  • Page 5 SC-95 ENGINEERING DATA SC-95 ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump SC-95 Plunger Type Rokide Stainless Steel: ® Chromium Oxide-Coated 416 S.S. Maximum Input HP at Speed 60 at 550 rpm Stuffing Boxes, Field-Removable and Replaceable: Rated Continuous Plunger Load 4,752 lbs.

  • Page 6: Dimensional Data

    CROSS-SECTION DIMENSIONAL DRAWINGS OIL LEVEL SIGHT GLASS 3/4 DIA. HOLES 21-5/8 4 PLACES 1-3/4 CRANKSHAFT 9-3/8 PUMP 20-1/4 18-3/4 CRANKSHAFT 2-1/4 1-9/16 4-1/4 4-5/8 DIMENSIONAL DATA TABLE Cast Fluid End Ref. No. MA-60M MA-60H SC-95 DISCHARGE PORTS PUMP 36-3/8 – 36-1/2 NOTE REQUIRED DIRECTION OF ROTATION...

  • Page 7: Installation, Operation, Lubrication, Maintenance And Storage Instructions

    INSTALLATION, OPERATION, working spaces around the pump to provide ample access to fluid end, power end, and associated drive LUBRICATION, MAINTENANCE elements. Do not expect good maintenance to result if the pump is positioned on muddy terrain, or in a dirty, AND STORAGE INSTRUCTIONS cramped, dimly lighted area! The supply tank(s) should be large to allow dissolved...

  • Page 8: Acceleration Head

    NOTE: Charge pumps should be sized to 150% of rated Suction piping should be buried beneath the frost line, or insulated to avoid freezing in the winter. If the pump volume. Charge pumps need to be centrifugals, suction line has a block valve at the supply tank, a not a positive displacement pump.

  • Page 9: Bypass Piping

    or snubber. Consider a liquid filled gauge. fluid end and on the plunger size selected. (Scale range to be double the normal pump Choice of the largest size plunger for a particular operating pressure.) fluid end improves this compression ratio and so Locate the relief valve and pressure gauge ahead of leads to “self priming”, or easy priming.

  • Page 11: Direction Of Rotation

    AUTOMATIC (SAFETY) SHUTDOWNS Use the following table in adjusting V-belt tension: Belt Tension at Mid-Span Carefully check all electric shutdown devices present, Cross-Section New Belts Used Belts such as crankcase oil level, discharge pressure, “B” 5 – 6 lbs. 3-1/4 – 5 lbs. vibration, lubricator oil level, motor thermostat, etc.

  • Page 12: Installing Crankshaft

    INSTALLING CRANKSHAFT INSTALLATION OF CRANKSHAFT OIL SEAL GENERAL Insert oil seal over the end of crankshaft and position it into the oil seal bore in the bearing retainer. Using a Stand the power frame casting on the floor or on a rubber mallet, tap it into the bore until the face of the bench with the fluid end face down and crankshaft seal is flush with the bearing retainer.

  • Page 13: Connecting Rod, Crosshead, Extension Rod, Cross- Head Pin And Wiper Box Assembly/Disassembly

    CONNECTING ROD, somewhat, owing to the extent of press fit. Therefore, a clean, new wrist pin should be inserted into the CROSSHEAD, EXTENSION bushing bore to establish that running clearance has been obtained. ROD, CROSSHEAD PIN Oil Clearance ..........0004/.0016" AND WIPER BOX ASSEMBLY/ Replacement bushings are furnished prebored by Myers, Aplex Series which usually eliminates the DISASSEMBLY...

  • Page 14: Precision Crankpin (Crankthrow) Bearings

    FRAME BORE Using a torque wrench, tighten cap bolts as follows: (CRANKSHAFT NOT INSTALLED) Thread Size: 5/8" – 18UNC CONNECTING ROD SHANK Tightening Torque: 125-135 Ft. Lb. Specified torque, applied to clean, well oiled threads and bearing faces, will create tensile stresses in the cap bolts from 90,000 to 110,000 psi, approx.

  • Page 15: Inserting The Plunger

    INSERTING THE PLUNGER that the spring does not contact the plunger. Spring-Guide Ring: Insert the extension rod through the wiper seals with Plungers are heavy and the importance of a well-fitted the tapered thread and entering first. Care should be guide ring that carries this weight is often overlooked.

  • Page 16: Inserting The Plunger

    CONNECTING THE PLUNGER Lantern rings are provided with O.D. and I.D. reliefs and two (or more) oil holes to allow lubricant to reach the plunger. After the last unit of Styles 838 and 858 Install the metal baffle plate on the extension rod packing is in place, generously oil the lips of all seal and roll the pump slowly until the extension rod male rings to ease plunger entry.

  • Page 17: Dual-Stem Guided And Disc Valve Systems

    All threads on plungers must be clean and oiled before incrustation. Using emery cloth, lightly rub out any assembly. Stainless steel (although very corrosion minor imperfections found in the deck taper. resistant) has a tendency to gall and seize. To avoid The puller stem and puller head are provided with this, an anti-seizing lubricant is well worth its use.

  • Page 18: Valve Disc Options

    VALVE DISC OPTIONS SALVAGE OF WORN SEATS Acetal resin discs are machined flat and smooth to Rough valve seat faces may often be renewed by produce perfect sealing on the lapped-flat face of the lapping or grinding, if not deeply fluid-cut. seat.

  • Page 19: Trouble Location And Remedy

    TROUBLE LOCATION AND REMEDY Trouble Possible Cause Remedy Pump fails to deliver Speed incorrect. Change drive ratio or tighten required capacity. Belts slipping. belts (if loose). Correct motor speed. Air leaking into pump. Seal with compounds. Liquid cylinder valves, Reface or lap valves and seats; seats or plungers worn.
  • Page 20 TROUBLE LOCATION AND REMEDY Trouble Possible Cause Remedy Consistent knock. Water in power end, crankcase. Drain. Refill with clean oil. Worn or noisy gear. Replace. Worn or loose main bearing, crank Adjust or replace. pin bearing, wrist pin bushing, Add oil to proper level. plunger, valve seat, low oil level.

  • Page 21: Parts Lists

    TROUBLE LOCATION AND REMEDY Trouble Possible Cause Remedy Excessive heat in power end. Pump operating backward. Correct rotation. (Above 180ºF) Insufficient oil in power end. Fill to proper level. Excessive oil in power end. Drain to proper level. Incorrect oil viscosity. Fill with correct oil.
  • Page 22 Crankshaft Assembly 3" Stroke; Right-Hand and Left-Hand Drive; Right-Hand Shown MA-60M, MA-60H, SC-65 MA-60M, MA-60H, SC-65 Item Quantity Description Part Number Item Quantity Description Part Number Crankshaft Assembly (includes items 1 & 2) PE109K O-Ring, Nitrile Rubber 001500191 Crankshaft 7202-0001-10B 1/2"...
  • Page 23 Fluid End Assembly MA-60M, SC-95 Item Quantity Description Part Number Fluid End, Ductile Iron 7202-0183-10E Fluid End, Nickel Aluminum Bronze 7202-0069-10E 1-1/4" NC Socket Head 105-114238-271 Cap Screw x 2-3/8" Long Valve Cover 7202-0438-00B 1" x 4-1/8" Stuffing Box Stud 7507-2794-00A 1"-8 Thrd.

  • Page 24: Warranty

    (f) if unit is used for purposes other than for what it is designed and manufactured; (g) to any unit that has been repaired or altered by anyone other than Pentair Myers or an authorized Pentair Myers service provider;...

This manual is also suitable for:

Myers aplex ma-60mMyers aplex ma-60hMyers aplex sc-95

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