Graco Therm-O-Flow 20 Instructions - Parts Manual page 28

Setup
3. Adjust the air motor air regulator (C) to approxi-
mately 20 psi (138 kPa, 1.38 bar) on the pneumatic
panel.
C
4. Place a waste container under the bleed stem (ST).
Using an adjustable wrench, open the bleed stem
counterclockwise 1/3 -1/2 turn. See F
5. If a new pail was installed and:
• If the unit is equipped with proximity sensors,
press the Pump Ready key
• If the unit is not equipped with proximity sen-
sors, press the Clear key
present, then press the Pump Ready key
6. With waste container in place, slowly open the air
motor valve (D).
D
28
7. Make sure the pump begins to cycle and heated
8. If the pump does not cycle, adjust the air motor air
9. Prime the pump until it moves smoothly in both
10. Close the bleed stem (ST). See F
TI8142A
. 21.
IG
.
if a motor error is
.
F
IG
TI10094A
material flows from the bleed stem (ST) after several
cycles of the pump.
regulator (C) up by 5 psi (34 kPa, 0.3 bar). Never
adjust the regulator by more than 5 psi (34 kPa, 0.3
bar) increments.
directions with no air popping or erratic movement
and close the air motor bleed-type master air valve
(D).
. 21: Bleed Stem
. 21.
IG
ST
TI8143A
311976K