Graco 308550ZAD important safety instructions Maintenance

Page 13

Operation

Operation of Remote Piloted Pumps

1.Fig. 2 and Parts Drawings. Follow preceding steps 1 through 7 of Starting and Adjusting Pump.

2.Open air regulator (C).

WARNING

The pump may cycle once before the external sig- nal is applied. Injury is possible. If pump cycles, wait until end before proceeding.

3.Pump will operate when air pressure is alternately applied and relieved to push type connectors (14).

NOTE: Leaving air pressure applied to the air motor for extended periods when the pump is not running may shorten the diaphragm life. Using a 3–way solenoid valve to automatically relieve the pressure on the air motor when the metering cycle is complete prevents this from occurring.

Pump Shutdown

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure at left.

At the end of the work shift, relieve the pressure.

Maintenance

Lubrication

The air valve is designed to operate unlubricated. However, if lubrication is desired, every 500 hours of operation (or monthly) remove the hose from the pump air inlet and add two drops of machine oil to the air inlet.

CAUTION

Do not over-lubricate the pump. Oil is exhausted through the muffler, which could contaminate your fluid supply or other equipment. Excessive lubrica- tion can also cause the pump to malfunction.

Flushing and Storage

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 12.

Flush the pump often enough to prevent the fluid you are pumping from drying or freezing in the pump and damaging it. Flush with a fluid that is compatible with the fluid you are pumping and with the wetted parts in your system. Check with your fluid manufacturer or supplier for recommended flushing fluids and flushing frequency.

Always flush the pump and relieve the pressure before storing it for any length of time.

Tightening Threaded Connections

Before each use, check all hoses for wear or damage, and replace as necessary. Check to be sure all threaded connections are tight and leak free. Check fasteners. Tighten or retorque as necessary. Although pump use varies, a general guideline is to retorque fasteners every two months. See Torque Sequence, page 31.

Preventive Maintenance Schedule

Establish a preventive maintenance schedule, based on the pump’s service history. This is especially impor- tant for prevention of spills or leakage due to dia- phragm failure.

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Contents Important Safety Instructions Instructions Parts ListModels Table of ContentsEquipment Misuse Hazard SymbolsToxic Fluid Hazard General Information InstallationTighten Screws Before First Use Toxic Fluid HazardGround all of this equipment GroundingAir Line Typical FLOOR-MOUNT InstallationMountings Installation of Remote Pilot Air LinesFluid Suction Line Fluid Outlet LineBolt Tightening Sequence Flange ConnectionsFluid Pressure Relief Valve Changing the Orientation of the Fluid Inlet and Outlet PortsFire and Explosion Hazard Air Exhaust VentilationVenting Exhaust AIR Starting and Adjusting the Pump Pressure Relief ProcedureOperation Flush the Pump Before First UseMaintenance Problem Cause Solution TroubleshootingTroubleshooting Repairing the Air Valve ServiceDisassembly Tools RequiredReassembly Relieve the pressure. Disconnect all hoses Ball Check Valve RepairDiaphragm Repair Reassembly Standard Diaphragms Reassembly Overmolded Diaphragms 105 19 402 24 104 403 Bearing and Air Gasket Removal Detail of Air Valve Bearings Husky 2150 Polypropylene and Pvdf Pumps, Series a Pump MatrixFor Husky 2150 Polypropylene and Pvdf Pumps, Series a Repair Kit MatrixParts Air Motor Parts List Matrix ColumnMuffler Fluid Section Parts List Matrix ColumnBall Parts List Matrix Column Seat Parts List Matrix ColumnDiaphragm Parts List Matrix Column 114 Torque Sequence Front View DimensionsSide View Pump Mounting Hole Pattern Dimension SST Center Aluminum Polypropylene Pvdf Cover 14-0.8 MPa, 1.4-8 bar Technical DataFeet meters Performance ChartPsi MPa, bar Fluid Flow GPM lpmGraco Information Graco Warranties