Graco Inc 233757 important safety instructions Maintenance, Flushing, Cleaning and Repair

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Maintenance

Maintenance

Flushing

Flush before changing colors, at the end of the day, before storing, and before repairing the equipment.

Flush with a fluid that is compatible with the fluid you are pumping and with the wetted parts of your system. Check with your fluid manufacturer or supplier for rec- ommended flushing fluids and flushing frequency. Relieve the pressure after flushing.

Do not allow paint or solvent to sit in the system for extended periods. Fluid could dry in the regulator and cause leakage. If leakage occurs, relieve pressure, then disassemble and clean the regulator.

Cleaning and Repair

When changing fluids or colors, the regulator should be disassembled and cleaned. Regular cleaning and inspection of the internal parts is necessary to keep the fluid regulator working properly.

1.Relieve all air and fluid pressure in the system.

2.Remove the regulator from the system.

3.Disassemble the regulator (see the parts drawings on pages 14 through 19).

4.Clean and inspect all parts.

CAUTION

Be very careful when handling the carbide balls and seats. Damage will cause poor operation and leak- age.

5.Inspect the diaphragm, packings, o-rings, and seals for wear. Check the ball and seat for nicks, wear, or other damage.

6.Lubricate packings, o-rings and seals when reas- sembling the regulator.

309474K

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Contents Model 233757 Shown II 2 G Low PressureContents Key to Model Designation List of ModelsEquipment Misuse Hazard Pressurized Equipment Hazard Back Pressure Regulators IntroductionFluid Pressure Regulators Fluid Inlet from gunFluid Inlet from pump Valve ball and seat Adjustment screw Spring Diaphragm Valve plungerFluid Outlet to gun Air inlet Diaphragm Fluid Outlet To gun Valve plungerAir to gun Fluid Air to pump InstallationAir to Fluid RegulatorAir to Pump Gun G a BAir Fluid Air to Back Pressure Regulator Air to GunAir to Fluid Regulator Fluid to gunAdjusting the Regulator Pressure Relief ProcedureOperation Flush Before First UseProblem Cause Solution TroubleshootingCleaning and Repair MaintenanceFlushing Mechanical Fluid Pressure Regulators Part Nos PartsDescription Mechanical Back Pressure Regulators Part Nos Part No. Description TI11249a Description Qty Pneumatic Back Pressure Regulators Part Nos Category Data Technical DataFlow Rate Data Accessory GaugesGauge Thread Dimension a Mounting DimensionsMounting Dimensions 309474K For Graco Canada Customers Graco Warranty