Graco TI12552a TV Cables User Manual


 
System Operation
92 312779E
Systems with Color Change and without
Dump Valves
NOTE: This procedure relieves pressure through the
sampling valve.
1. Complete all steps under Single Color Systems,
page 91.
2. Close the A side shutoff valve (SVA), F
IG
. 106.
Open the A side sampling valve (RVA).
3. Direct the A side sampling tube into a waste con-
tainer.
4. See F
IG
. 105. Open the color change module. Using
the solenoid identification labels as a guide, press
and hold the override button on each color solenoid
until flow from the sampling valve stops.
5. Press and hold the solvent solenoid override until
clean solvent comes from the sampling valve, then
release.
6. Shutoff the solvent supply to the color change stack
solvent valve.
7. Press and hold the solvent solenoid override until
solvent flow from the sampling valve stops.
8. Open the A side shutoff valve (SVA), F
IG
. 106.
Close the A side sampling valve (RVA).
Systems with Color/Catalyst Change and
Dump Valves
NOTE: This procedure relieves pressure through the
dump valves.
1. Complete all steps under Single Color Systems,
page 91.
2. Shut off all color and catalyst supplies to the valve
stacks.
3. Press and hold the dump valve A solenoid override,
F
IG
. 104.
4. See F
IG
. 105. Open the color change module. Using
the solenoid identification labels as a guide, press
and hold the override button on each color solenoid
until flow from dump valve A stops.
5. Press and hold the dump valve B solenoid override,
F
IG
. 104.
6. See F
IG
. 105. Using the solenoid identification
labels as a guide, press and hold the override but-
ton on each catalyst solenoid until flow from dump
valve B stops.
7. Press and hold the dump valve A solenoid override,
F
IG
. 104.
8. Press and hold the A side (color) solvent solenoid
override until clean solvent comes from the dump
valve, then release.
9. Press and hold the dump valve B solenoid override,
F
IG
. 104.
10. Press and hold the B side (catalyst) solvent solenoid
override until clean solvent comes from the dump
valve, then release.
11. Shutoff the solvent supply to the color/catalyst
change stack solvent valves.
12. Press and hold the A and B solvent solenoid over-
rides and dump valve overrides until solvent flow
from the dump valves stops.