Merkur Pump Assembly - Graco

1 Instructions - PartsMerkur Pump Assembly312794 JENFor high-performance finishing and coating applications in hazardous or non-hazardous locations. For professional use page 4 for model information, including maximum work-ing Safety InstructionsRead all warnings and instructions in this manual. Save these 2 G 2312794 JContentsPump Part Number Matrix .. 3 Pump Models .. 4 Warnings .. 5 Related Manuals .. 6 Component Identification .. 7 Installation .. 8 General Information .. 8 Prepare the Operator .. 8 Prepare the Site.

2 8 Grounding .. 8 Mount the Pump .. 9 Air and Fluid Hoses .. 9 Accessories .. 9 Typical Installation .. 10 Operation .. 11 Pressure Relief Procedure .. 11 Flush Before Using Equipment .. 11 Trigger Lock .. 11 Wet Cup .. 11 Prime and Adjust the Pump .. 12 Shutdown and Care of the Pump .. 12 Maintenance .. 13 Preventive Maintenance Schedule .. 13 Tighten Threaded Connections .. 13 Flush the Pump .. 13 Wet Cup .. 13 Troubleshooting .. 14 Repair .. 15 General Information .. 15 Disconnect the Displacement Pump.

3 15 Reconnect the Displacement Pump .. 16 Disconnect the Air Motor .. 17 Reconnect the Air Motor .. 17 Pump Parts .. 18 Parts That Vary by Model .. 20 Repair Kits .. 21 Performance Charts .. 22 Pump Dimensions .. 29 Wall Bracket Mounting Dimensions .. 30 Technical Data .. 31 Graco Standard Warranty .. 32 Graco Information .. 32 Pump Part Number Matrix312794J3 Pump Part Number MatrixCheck your pump s identification plate (ID) for the 6-digit part number. Use the following matrix to define the construction of your pump, based on the six digits.

4 For example, Part No. W 1 5 A A S represents a wet cup pump (W), 15 to 1 ratio (15), 25 cc lower (A), 3 UHMWPE/2 PTFE packings with chromex rod coating, no data monitoring, low noise exhaust (A), and stainless steel construction (S).* Cycle refers to combination of one upstroke and one downstroke. W15 AASF irst Digit(Wet cup)Second and Third Digits (pressure ratio - XX:1)Fourth Digit(Displacement pump volume per cycle*)Fifth Digit(Packings - X UHMWPE:X PTFE/Piston Rod Coating/Data Monitoring/Exhaust)Sixth Digit(lower material)W10A25 ccA3:2/Chromex/No Monitoring/Low NoiseSStainless steel15B50 ccB3:2/Chromex/DataTrak /Low Noise18C75 ccE3.

5 2/Chromex/DataTrak Cycle Count Only/Low Noise23D100 cc24E125 cc28F150 cc30364548ti12922aIDPump Models 4312794 JPump Models Flush Kit pumps do not utilize the part number , SeriesAir MotorDisplacement PumpMaximum Fluid Working Pressurepsi (MPa, bar)Flow Rate at 60 cpmgpm (lpm)Fluid InletFluid OutletAir InletW10 CAS, Series A M04LN0LW075A1000 ( , 69) ( )3/4 in. npt 3/8 in. npt 1/4 npt(f)W10 CBS, Series A M04LT0W15 AAS, Series AM02LN0LW025A1500 ( , 103) ( )1/2 in. npt3/8 in. npt1/4 npt(f)W15 BAS, Series A M04LN0LW050A1500 ( , 103) ( )3/4 in.

6 Npt 3/8 in. npt 1/4 npt(f)W15 BBS, Series A M04LT0W15 FAS, Series AM12LN0LW150A1500 ( , 103) ( )1 in. npt3/4 in. npt1/2 npt(f)W15 FBS, Series AM12LT0W18 EAS Series A M12LN0LW125A1800 ( , 124) ( )1 in. npt1/2 in. npt 1/2 npt(f)W18 EBS, Series A M12LT0W23 DAS, Series AM12LN0LW100A2300 ( , 158) ( )3/4 in. npt3/8 in. npt1/2 npt(f)W23 DBS, Series AM12LT0W24 FAS, Series A M18LN0LW150A2400 ( , 165) ( )1 in. npt3/4 in. npt 1/2 npt(f)W24 FBS, Series A M18LT0W28 EAS, Series AM18LN0LW125A2800 ( , 193) ( )1 in. npt1/2 in. npt1/2 npt(f)W28 EBS, Series AM18LT0W30 AAS, Series A M04LN0LW025A3000 ( , 207) ( )1/2 in.

7 Npt 3/8 in. npt 1/4 npt(f)W30 ABS, Series A M04LT0W30 CAS, Series AM12LN0LW075A3000 ( , 207) ( )3/4 in. npt3/8 in. npt1/2 npt(f)W30 CBS, Series AM12LT0257463 , Series AM12LN0W36 DAS, Series A M18LN0LW100A3600 ( , 248) ( )3/4 in. npt 3/8 in. npt 1/2 npt(f)W36 DBS, Series A M18LT0W45 BAS, Series AM12LN0LW050A4500 ( , 310) ( )3/4 in. npt3/8 in. npt1/2 npt(f)W45 BBS, Series AM12LT0262287 , Series AM12LN0262392 , Series AM12FN0W48 CAS, Series A M18LN0LW075A4800 ( , 331) ( )3/4 in. npt 3/8 in. npt 1/2 npt(f)W48 CBS, Series A M18LT0 Warnings312794J5 WarningsThe following warnings are for the setup, use, grounding, maintenance, and repair of this equipment.

8 The exclama-tion point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where AND EXPLOSION HAZARDF lammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent fire and explosion: Use equipment only in well ventilated area. Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop cloths (potential static arc).

9 Keep work area free of debris, including solvent, rags and gasoline. Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes are present. Ground all equipment in the work area. See Grounding instructions. Use only grounded hoses. Hold gun firmly to side of grounded pail when triggering into pail. If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment until you identify and correct the problem. Keep a working fire extinguisher in the work MISUSE HAZARDM isuse can cause death or serious injury.

10 Do not operate the unit when fatigued or under the influence of drugs or alcohol. Do not exceed the maximum working pressure or temperature rating of the lowest rated system component. See Technical Data in all equipment manuals. Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all equipment manuals. Read fluid and solvent manufacturer s warnings. For complete information about your material, request MSDS forms from distributor or retailer. Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manu-facturer s replacement parts only.