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Summary of Contents for Pentair MYERS DP 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 # 23833A148 | © 2017 Pentair Ltd. | 06/21/17...
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Page 2: Suggested Maintenance Schedule
INSTRUCTIONS Adjust relief valve or unloader to desired pressure. Cycle nozzles, or gun, on and off to be sure that CAUTION: Positive displacement pumps must have a pressure adjustment and regulator operation is proper size and operable type of pressure regulating satisfactory. - Page 3 ADDITIVES FOR CRANKCASE OIL retainer. Remove shoulder screw, spring retainer, spring and valve from the pump fluid end. Use of molybdenum disulfide (MoS ) is recommended as an additive to non-synthetic oil in back geared pumps. Assemble stud, retainer and three screws by inserting The additive is compatible with all known oils.
- Page 4 REPLACING CRANKSHAFT AND Tap the end of the pinion shaft extension to remove the SHIMMING BEARINGS bearing cup at the opposite end. After removing pinion shaft, the remaining bearing cup can be removed by gently tapping against the peripheral edge of the cup with Press the bearing cups into the caps.
- Page 5 after the wrist pin is pressed in. Verify that both sides of hand wheel to unseat valves to avoid frost to valve seats. the wrist pin do not protrude beyond the crosshead. If pump does not have valve lifters with the piping lines open into the atmosphere, start and run the pump for only 15 seconds.
- Page 6 THE PUMP MUST BE INSTALLED WITH A PRESSURE RELIEF VALVE IN DISCHARGE LINE TROUBLESHOOTING Pump fails to build pressure with discharge closed Failure to hold pressure with discharge open Pump is noisy Pump gets hot Pressure gauge shows abnormal fluctuation POSSIBLE CAUSE OF PROBLEM 1.
- Page 7 5. If the pressure regulator internal bypass valve is worn, it 11. Worn connecting link bearings are caused by unusual or will allow too much of the pump capacity to be bypassed adverse operating conditions and are seriously affected and recirculated back to the tank. By examining the flow by corrosion if water is present in the crankcase.
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Page 8: Parts List
DP SERIES PLUNGER PUMP PARTS LIST POWER END PARTS 24960F101 L.H. & 24960F100 R.H. HYDRAULIC DRIVE COMPONENTS Item Description Qty. Eng. No CASE, GEAR 04625E001K GASKET, LID 06201C000 SCREW, CAP, 5/16"-18 UNC x 1/4", STEEL 19100A005 04561B000 NIPPLE, SPECIAL VENT 17995A000 CAP, PIPE 05737A002... - Page 9 FLUID END PARTS - DP SERIES Item Description Qty. Eng. No Model BODY, FLUID END A (L.P.) 24961F000K DP120-12, DP90-18, DP85-20, DP80-20, DP70-22 BODY, FLUID END B (H.P.) 24961F001K DP55-28 BODY, FLUID END C (V.H.P.) 24961F003 DP28-55, DP40-38 CAP, VALVE 24797A000 ALL MODELS O-RING...
- Page 10 DP80-20 Ø) DP120-12 DP90-18 DP70-22 DP55-28 DP40-38 DP28-55 Ø) DP85-20 (2 Ø) Ø) Ø) Ø) Ø) DIMENSIONS, S.A.E. "C" FACE MOUNTING 23833A148 06/21/17...
- Page 11 THIS PAGE INTENTIONALLY LEFT BLANK...
- Page 12 (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;...
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