Pressure Relief Procedure - Graco HFR Setup And Operation Manual

Hydraulic, plural-component, fixed-ratio proportioner for pouring and dispensing sealants and adhesives and polyurethane foam

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Pressure Relief Procedure

1. Shut off feed pumps and agitator, if used.

2. Turn PRESSURE RELIEF/DISPENSE valves (SA,

SB) to PRESSURE RELIEF/CIRCULATION

Route fluid to waste containers or supply tanks.

Ensure gauges drop to 0.

3. For models with an dispense valve with a safety

lock, engage gun safety lock.

4. Relieve pressure in dispense valve. See dispense

valve manual.

313997ZAA

ti9879a1

Pressure Relief Procedure

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