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Pentair MYERS RO-358, Installation And Service Manual, Page: 1 / 36

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Pentair MYERS RO-358 Installation And Service Manual Download Page 1

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.

MODELS  

MA-240L, MA-240L-HD, MA-240M, MA-240M-HD, MA-240K,

SC-300L, SC-300,

RO-358L, RO-358

QUINTUPLEX PUMPS

INSTALLATION AND SERVICE MANUAL

Part # AP-03-101  |  © 2014 Pentair Ltd.  |  02/13/14 

Summary of Contents for MYERS RO-358

Page 1: ...al to the owner of the equip ment or to the responsible party who maintains the system MODELS MA 240L MA 240L HD MA 240M MA 240M HD MA 240K SC 300L SC 300 RO 358L RO 358 QUINTUPLEX PUMPS INSTALLATION...

Page 2: ...ead Extension Rod Crosshead Pin and Wiper Box Assembly Disassembly 19 General 19 Installing Wrist Pin Bushings 20 Pinning the Crosshead 20 Order of Assembly 20 Precision Crankpin Crankthrow Bearings 2...

Page 3: ...meter 2 3 8 thru 3 1 2 Maximum Continuous Working Pressure 1 683 psi Hydrostatic Test Discharge Suction 2 525 psi 425 psi Discharge Connection Size 3 NPTF Suction Connection Size 6 NPTF Maximum Workin...

Page 4: ...nge Diameter 2 3 8 Thru 3 1 2 Maximum Continuous Working Pressure 1 683 psi Hydrostatic Test Discharge Suction 2 525 psi 425 psi Discharge Connection Size 3 NPTF Suction Connection Size 6 NPTF Maximum...

Page 5: ...Life Expectancy Main Bearings L10 75 000 hr Liquid End Plunger Size Range Diameter 1 1 2 Thru 2 1 4 Maximum Continuous Working Pressure 3 600 psi Hydrostatic Test Discharge Suction 5 400 psi 425 psi D...

Page 6: ...m 100 fpm Minimum Life Expectancy Main Bearings L10 60 000 hr Liquid End Plunger Size Range Diameter 1 1 2 Thru 2 1 4 Maximum Continuous Working Pressure 3 600 psi Hydrostatic Test Discharge Suction 5...

Page 7: ...quid End Plunger Size Range Diameter 3 5 8 Thru 4 1 2 Maximum Continuous Working Pressure 939 psi Hydrostatic Test Discharge Suction 1 400 psi 425 psi Discharge Connection Size 4 ANSI 600FF Suction Co...

Page 8: ...ead Speed At 400 rpm At 150 rpm 267 fpm 100 fpm Liquid End Plunger Size Range Diameter 3 5 8 Thru 4 1 2 Maximum Continuous Working Pressure 1 626 psi Hydrostatic Test Discharge Suction 2 500 psi 425 p...

Page 9: ...Life Expectancy Main Bearings L10 75 000 hr Liquid End Plunger Size Range Diameter 1 1 2 Thru 2 1 4 Maximum Continuous Working Pressure 3 365 psi Hydrostatic Test Discharge Suction 5 050 psi 425 psi...

Page 10: ...r Liquid End Plunger Size Range Diameter 3 5 8 Thru 4 1 2 Maximum Continuous Working Pressure 939 psi Hydrostatic Test Discharge Suction 1 400 psi 425 psi Discharge Connection Size 4 ANSI 600FF Suctio...

Page 11: ...L10 100 000 hr Liquid End Plunger Size Range Diameter 3 3 8 Thru 3 1 2 Maximum Continuous Working Pressure 2 190 psi Hydrostatic Test Discharge Suction 3 285 psi 425 psi Discharge Connection Size 3 N...

Page 12: ...00 FF 3 ANSI 900 FF 2 ANSI 1500 FF 2 ANSI 1500 FF 4 ANSI 600 RJT 4 ANSI 600 FF 3 ANSI 900 FF B Suction Connections 6 ANSI 150 FF 6 ANSI 150 FF 4 ANSI 150 FF 4 ANSI 150 FF 8 ANSI 150 FF 8 ANSI 150 FF 6...

Page 13: ...GAUGE LUBE OIL FILTER OIL PRESSURE SET VALVE A1 REQ D TO REMOVE OIL FILTER C3 C1 C2 C4 C5 C6 SUCTION CONNECTION DISCHARGE CONNECTION CRADLE DRAIN NOTE REQUIRED DIRECTION OF ROTATION PUMP PUMP D2 D1 NO...

Page 14: ...A system employing dams and settling chambers is desirable CAUTION All pumps should be installed level For mobile applications the maximum angle of intermittent operation pumps SC pumps should be no m...

Page 15: ...lected at the relief valve The relieving capacity of the relief valve must exceed the capacity of the pump to avoid excessive pressure while relieving Use a full size relief line To minimize vibration...

Page 16: ...ew Belts Used Belts B 5 6 lb 3 1 4 5 lb C 9 3 4 13 lb 6 1 2 9 3 4 lb 3V 4 10 lb 3 7 1 2 lb 5V 17 30 lb 13 23 lb Applying the above forces with a small spring scale adjust motor position to provide the...

Page 17: ...D SUCTION PULSATION DAMPENER IF USED DISCHARGE LINE SEE NOTE 7 FULL OPENING DISCHARGE LINE VALVE SWING CHECK VALVE WITH FULL OPENING SEAT PRESSURE RELIEF VALVE AND COLD WEATHER DRAIN SEE NOTE 9 CENTER...

Page 18: ...er end face not on the taper CENTER BEARINGS The two center bearings are pressed into the power frame bore one from the right and one from the left The drilled indentation on the bearing must be align...

Page 19: ...fully round chrome plated and finish ground to the above sizes Crankshaft tapered roller bearings should be carefully examined for pitting scoring or corrosion and replaced as required The cone and r...

Page 20: ...an motor oil After in stalling the pin carefully check the crosshead O D to see if it is out of round If so use a rubber mal let to restore the crosshead O D into its origi nal round ness ORDER OF ASS...

Page 21: ...rbore INSERTING THE EXTENSION ROD Insert the extension rod through the wiper seals with the tapered thread and entering first Care should be used in moving the extension rod through the seals with wre...

Page 22: ...cause it to drip at all but it can ruin the box in time Lightly oil each ring and the box bore and then lightly tap in each ring separately with the rings facing correctly This is most easily done be...

Page 23: ...oated surface black during installation Apply light forces only on the ends of the plunger Do not hammer or pry All threads on plungers must be clean and oiled before assembly Apply oil to the threads...

Page 24: ...ut do not tighten Slide the bridge over the stem Clean and oil the stem threads Oil the face of the wing nut Thread wing nut down onto the stem seating it on the bridge top firmly Extract the seat fro...

Page 25: ...lean or remove Relief bypass pressure valves leaking Repair Suction and or discharge piping vibrates or pounds Piping too small and or too long Increase size and decrease length Use booster pump Use s...

Page 26: ...uently Many times plungers are replaced and bushings ignored Plunger misalignment Realign Plungers must operate concentrically in stuffing box Wear of liquid end parts Abrasive or corrosive action of...

Page 27: ...nd Drain to proper level Incorrect oil viscosity Fill with correct oil Overloading Reduce load Tight main bearings Correct clearance Drive misaligned Realign Belts too tight Reduce tension Discharge v...

Page 28: ...Right Hand Shown 12 14 15 16 13 18 20 1 17 21 23 19 22 2 3 4 5 7 8 11 9 10 24 6 4 1 5 6 7 8 2 3 10 9 18 19 22 20 23 25 16 15 12 24 14 21 17 11 13 27 28 26 MA 240L MA 240M MA 240K RO 358L RO 358 Item...

Page 29: ...items 1 2 3 4 Bearing Cone Tapered Roller Bearing Cup PE271KB 203 168000 999 202 458000 999 5 1 Bearing Carrier Drive Side 7204 0018 00C 6 2 O Ring Nitrile Rubber 110 000271 201 7 12 5 8 NC Hex Head...

Page 30: ...7 8 Stuffing Box Studs 7507 2791 00A 6 20 1 8 Thrd Heavy Hex Nut 133 100008 243 7 16 7 8 x 3 7 8 Stud Discharged Flanged 7507 2736 00A 8 16 7 8 9 Thrd Heavy Hex Nut 133 078009 243 9 16 5 8 x 2 3 4 Stu...

Page 31: ...x 5 16 Stud Cover 7507 2793 00A 7 40 1 8 Thrd Heavy Hex Nut 133 100008 243 8 2 1 1 2 x 11 5 8 Stud Liquid End to Power End 7204 0903 00A 9 2 1 1 2 6 Thrd Heavy Hex Nut 133 112006 243 10 2 1 2 Hex Hd...

Page 32: ...0016 00A 7204 0054 00A 7204 0385 00B 7204 0012 10B 7204 0376 00B 7204 0051 00B 3 1 4 7204 0535 26B 7204 0016 00A 7204 0054 00A 7204 0385 00B 7204 0012 10B 7204 0376 00B 7204 0051 00B 3 1 8 7204 0535...

Page 33: ...7204 0376 00B 7204 0049 00B Qty 5 ea per pump GLAND NUT WRENCH 7204 0464 00B 5 2 1 4 3 2 1 4 3 5 6 Stuffing Box Assembly MA 240K RO 358L Plunger Diameter Plunger Chrome Oxide 1 Baffle 2 Stuffing Box...

Page 34: ...8 273 7 4 1 8NC x 4 1 2 Long 12 point Screw 310 100412 454 8 1 Piston Liner Flange 7204 1054 00B SC 300L Item Quantity Description Part Number 1 1 Piston Liner 7204 1176 00B 2 1 Piston Rod 7204 1056 0...

Page 35: ...THIS PAGE INTENTIONALLY LEFT BLANK...

Page 36: ...s or malfunctions resulting from failure to properly install operate or maintain the unit in accordance with the printed instructions provided b to failures resulting from abuse accident or negligence...

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