Jesco MAGDOS 20-100 Operation & Maintenance Instructions Manual

Contents

Jesco MAGDOS 20-100 Operation & Maintenance Instructions Manual Manual pdf 6 page image

March 2004P h o n e : ( 5 8 5 ) 4 2 6 - 0 9 9 0 w w w . j e s c o a m e r i c a . c o m F a x : ( 5 8 5 ) 4 2 6 - 4 0 2 5SD 6.6Digital Display (DX Only)Digital Display (DX Only)Digital Display (DX Only)Digital Display (DX Only)Digital Display (DX Only)The display indicates two types of information.First, it reflects the number of strokes per minute.Second, if an error occurs in the metering system,a specific error message will be displayed.6. MaintenanceGeneralGeneralGeneralGeneralGeneral1. After the first several hours of operation, turnoff the pump and tighten all hardware andfittings. Retighten as needed to preventleakage. Do not overtighten plastic fittings.2. Clean exterior of pump as needed with mildsoap liquid.3. Clean and inspect check valves and dia-phragms annually. Replace if needed.After the First 80 Hours of OperationAfter the First 80 Hours of OperationAfter the First 80 Hours of OperationAfter the First 80 Hours of OperationAfter the First 80 Hours of Operation1. Clean and inspect check valves and dia-phragm. Replace if damaged. See ReplacingReplacingReplacingReplacingReplacingthe Diaphragmthe Diaphragmthe Diaphragmthe Diaphragmthe Diaphragm procedure and disassemblyof check valves.3. Check pump wetted end for leaks. Retightenconnections and fasteners as necessary.Replacing the DiaphragmReplacing the DiaphragmReplacing the DiaphragmReplacing the DiaphragmReplacing the Diaphragm1. Adjust stroke length knob to 0%.2. Shut off pump and close shutoff valves in thesuction and discharge lines. Relieve pressure.Drain suction and discharge lines if possible.Caution: Pressure must be relievedCaution: Pressure must be relievedCaution: Pressure must be relievedCaution: Pressure must be relievedCaution: Pressure must be relievedbefore proceeding. If pressure is notbefore proceeding. If pressure is notbefore proceeding. If pressure is notbefore proceeding. If pressure is notbefore proceeding. If pressure is notrelieved, dangerous chemical spray mayrelieved, dangerous chemical spray mayrelieved, dangerous chemical spray mayrelieved, dangerous chemical spray mayrelieved, dangerous chemical spray mayresult.result.result.result.result.3. Disconnect union nuts from check valves.4. Remove pump head mounting bolts and pullpump head/check valve assembly away frompump. Note orientation of check valves (flowarrows must point up). The head must not bereinstalled upside down.5. Turn diaphragm counterclockwise to unscrew itfrom pump push rod. Note orientation ofdiaphragm support plate behind diaphragm.6. Install the support plate onto diaphragm. Installnew diaphragm by screwing it clock-wise intopump push rod.7. Clean inside of pump head, using appropriatecleaning fluid compatible with materials ofconstruction and metered chemical.8. Reinstall pump head, noting orientation ofcheck valves. Tighten head bolts evenly usingan alternating crisscross pattern.9. Reassemble suction and discharge lines, nshutoff valves and start pump according to theStart Up and Operation InstructionsStart Up and Operation InstructionsStart Up and Operation InstructionsStart Up and Operation InstructionsStart Up and Operation Instructions,Section 5, page 1.4.10. Check for leaks and tighten accordingly.Operation & MaintOperation & MaintOperation & MaintOperation & MaintOperation & Maintenance Insenance Insenance Insenance Insenance Instructionstructionstructionstructionstructions MAGDOS DEDXNormal OperationDisplay Meaning80Stroke frequency of 80 strokes perminute while operating in eitherinternal or external signal control1.1 Operating condition: Externalpulse control with contact ratio 1:11.16Operating condition: Externalpulse control with pulsemultiplication factor 168.1Operating condition: Externalpulse control with pulse divisiondivisor 8Error IndicationDisplay MeaningE-L "Tank Empty" messageI-E Loss of analog signal (i.e. cablebreakage)OFL Input signal greater than 20 mAwith 0-20 or 4-20 mA controlOFF Selector switch is set to "0", pumpdoes not operate