Flushing. Graco 313997P - HFR
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Flushing
Flushing
Flush equipment only in a well-ventilated area. Do not dispense flammable fluids. Do not turn on heaters while flushing with flammable solvents.
• Flush out old fluid with new fluid, or flush out old fluid with a compatible solvent before introducing new fluid.
• Use the lowest possible pressure when flushing.
• All fluid components are compatible with common solvents. Use only moisture-free solvents. See
Technical Data on page 108 for list of wetted com-
ponents to verify compatibility of solvent with wetted materials. See solvent manufacturers information for material compatibility.
• To flush feed hoses, pumps, and heaters separately from heated hoses, set PRESSURE RELIEF/DIS-
PENSE valves (SA, SB) to PRESSURE
• To maintain grounding continuity when flushing or relieving pressure, hold a metal part of dispense gun firmly to the side of a grounded metal pail, then trigger gun.
RELIEF/CIRCULATION lines (N).
SA
. Flush through bleed
SB
N
N ti9880a1
• To flush entire system, circulate through gun fluid manifold (with manifold removed from gun).
• To prevent moisture from reacting with isocyanate, always leave the system dry or filled with a moisture-free plasticizer or oil. Do not use water. See
Important Two-Component Material Information on page 20.
• Solvent pails used when flushing : follow your local code. Use only metal pails, which are conductive, placed on a grounded surface. Do not place pail on a nonconductive surface, such as paper or cardboard, which interrupts grounding continuity.
52 313997P

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