HP D-04, G-04 14

D/G-04 Service (Hydraulic End)

14	D04-991-2400 5/1/04

Contents

WANNER ENGINEERING, INC Calculating Required Horsepower (kW) Performance Net Positive Suction Head – NPSHr Dry Lift D/G-04Models with Metallic Pumping Head Location Mounting Important Precautions Inlet Piping (Suction Feed) Inlet Piping (Pressure Feed) Inlet Calculations Discharge Piping Before Initial Start-Up Initial Start-UpProcedure Daily Periodically Shutdown Procedure During Freezing Temperatures Page Tools and Supplies 1.Remove Manifold (3) and Valve Plate (12) 2. Inspect Valves (5-11) 3.Inspect and Replace Diaphragms (17) 4.Flush Contaminant from Hydraulic End 5.Prime the Hydraulic Cells 6.Reinstall Valve Plate (12) and Manifold (3) Page 1. Disassemble Pistons 2.Reassemble Pistons 1.Remove Pump Housing 2.Remove and Replace Pistons 3. Replace Shaft Seal 4.Reassemble Housing and Back Cover 5.Reinstall Diaphragms 6.Reassemble Pump Cavitation Pump Runs Rough Drop in Volume or Pressure Premature Failure of Diaphragm Water (or Process Fluid) in Oil Reservoir Valve Wear Loss of Oil Premature Failure of Valve Spring or Retainer