Graco 313998S User Manual Page 23

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Flushing
313998S 23
Flushing
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 92 for wetted components.
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
RELIEF/CIRCULATION . Flush through bleed
lines (N).
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 mois-
ture-free plasticizer or oil. Do not use water. See
Important Two-Component Material Information
on page 19.
Flush equipment only in a well-ventilated area. Do not
dispense flammable fluids. Do not turn on heaters
while flushing with flammable solvents.
SA
SB
ti9880a1
N
N
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