Graco Inc 308639L Maintenance, Lubrication, Flushing and Storage, Tightening Connections

Page 10

Maintenance

Lubrication

The air valve is designed to operate unlubricated.

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. Excess oil is ex- hausted through the muffler, which could contami- nate your fluid supply or other equipment.

Flushing and Storage

Flush the pump often enough to prevent the fluid you are pumping from drying or freezing in the pump and damaging it. Always flush the pump and relieve the pressure before storing it for any length of time. Use a compatible solvent.

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 9.

Tightening Connections

Before each use, check all hoses for wear or damage, and replace them as necessary. Check to be sure all 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 25.

Preventive Maintenance Schedule

Establish a preventive maintenance schedule, based on the pump’s service history. This is especially important for prevention of spills or leakage due to diaphragm failure.

10 308639

Image 10

Contents Instructions Parts List ContentsEquipment Misuse Hazard 308639Hazardous Fluids Tightening Screws Before First Use Grounding InstallationGeneral Information Hazardous FluidsFLOOR-MOUNT Typical Installation KEYFluid Lines MountingsAir Line Fluid Outlet LineAir Exhaust Ventilation Changing Manifold OrientationFluid Pressure Relief Valve Toxic Fluid HazardVenting Exhaust AIR Operation Pressure Relief ProcedureStarting and Adjusting the Pump Flush the Pump Before First UseLubrication MaintenancePreventive Maintenance Schedule Flushing and StorageTroubleshooting Problem Cause SolutionDisassembly See Fig Relieve the pressure ServiceRepairing the Air Valve Tools RequiredReassembly Ball Check Valve Repair Diaphragm Repair Disassembly Relieve the pressure Removing and Replacing Bearings and Air Gasket on302 301 Removing and Replacing Bearings and Air Gasket See Fig Detail of Bearings Through hole must be on bottom232505, Aluminum 3275 Pump, Series C Pump MatrixHusky 3275 Pumps, Series C 24D619, Aluminum 3275 Pump, Series aRepair Kit Matrix For Husky 3275 Pumps, Series CParts Drawing 303 301 302 61 2 114 201 102 101 201* 102Fluid Section Parts List Matrix Column Parts ListsAir Motor Parts List Matrix Column Digit Description QtyBall Parts List Matrix Column Technical DataSeat Parts List Matrix Column Diaphragm Parts List Matrix ColumnTorque Sequence Pump Mounting Hole Pattern Dimensional DrawingsFront View Side ViewFluid Outlet PRESSURE--psi MPa, bar Performance ChartsFluid Pressure Curves AIR CONSUMPTION--scfm cubic meters/min Air Consumption Curves308639 Toll Free, 612-623-6921, 612-378-3505 Fax Graco WarrantiesGraco Information Graco Headquarters Minneapolis