Graco Reactor A-20 Operation page 30

Operation
16. Open gun fluid manifold valves A and B.
ti2414A
17. Disengage gun piston safety lock.
18. Test spray onto cardboard.
19. Observe isocyanate-A and resin-B gauges on up
and down strokes. Readjust upstroke pressure
regulator as required to ensure proportioning pump
pressure is equal on both the up and down strokes.
20. Equipment is ready to spray.
30
ti2410A
311511G