Graco InvisiPac HM10 Instructions Manual page 27

4. Open the bleed-type air valve (62).
F . 17: Open Bleed-Type Air Valve
IG
5. Use pump air pressure regulator (505) to adjust
pump air pressure to 0.
.
F . 18: Air Pressure Regulator Adjustment
IG
To help prevent fire and explosion, never exceed the
cleaning fluid's rated temperature. If the system was
just flushed, residual cleaning fluid is still in the
system until the system is primed with adhesive. Do
not raise temperature above cleaning fluid rated
temperature until system is primed with adhesive.
3A7259C
6. Navigate to the Home screen and set the melter,
hose, and applicator temperatures. See Set
Temperatures on the Home Screen, page 20.
On new systems only: A new system may have residual
oil in the melter from factory testing prior to shipping.
To prevent smoking, temporarily adjust the melter
62
temperature to 250°F (121°C).
7. Press the power button
Screen to begin system warm-up. See F
NOTE: Pellets will not move into the melter until the
system reaches operating temperature. See F
8. Open the applicators and keep them open.
9. With the applicators open and the system up to
temperature, slowly increase the pump air pressure
until the pump begins to run very slowly.
Approximately 20 psi (1.4 bar, 0.14 MPa) should be
sufficient.
To prevent damage to the pump due to pump
cavitation, do not supply more than 20 psi (1.4 bar,
505
0.14 MPa) air pressure to the pump until the system is
fully primed.
NOTE: Pump operation may be erratic below 20 psi
(1.4 bar, 0.14 MPa).
10. Continue running the pump until clean, air-free
material is dispensed from each applicator.
11. Once each applicator is fully primed, adjust pump
to desired pressure setting.
a. Adjust pump pressure to 20–100 psi (1.4–6.9
bar, 0.14–0.69 MPa).
b. Repeatedly open and close each applicator
while inspecting the dispense pattern.
c. Repeat until the desired dispense pattern is
achieved.
Operation
on the ADM Home
. 19.
IG
. 20.
IG
NOTICE
27