Supply Wet-Cups With Throat Seal Liquid - Graco A Series Repair Parts

Supply Wet-cups with
Throat Seal Liquid
WARNING
Pump rod and connecting rod move during operation.
Moving parts can cause serious injury such as pinch-
ing or amputation. Keep hands and fingers away from
wet-cup during operation. Turn main power OFF
before filling wet cup.
1.
Component A (ISO) Pump: Keep reservoir (R)
3/4 filled with Graco Throat Seal Liquid (TSL),
Part No. 206995. Wet-cup piston (28) circulates
TSL through packing nut/wet-cup (19), to carry
away isocyanate film on displacement rod.
After some time TSL will thicken and darken,
and must be replaced. Thick, dirty TSL will not
pump through lines and will harden in wet-cup.
Check condition of TSL every week, minimum,
and change when needed.
R
309577D
2.
Component B (Resin) Pump: Check felt wash-
ers (21) in packing nut/wet-cup (19) daily. Keep
saturated with Graco Throat Seal Liquid (TSL),
Part No. 206995, to prevent material from hard-
ening on displacement rod. Replace felt wash-
ers when worn or contaminated with hardened
material.
TI3765a-2

Supply Wet-cups with Throat Seal Liquid

19
TI3765a-1
7