Graco 204490 Manual De Usuario
Operation
10
306556S
Operation
Installing a Drum
Refer to F
. 9 for the following instructions.
1.
Relieve the pressure, see Pressure Relief Proce-
dure, page 5.
dure, page 5.
2.
Close the ball valve (65). The handle will be at a 90°
angle to the valve body.
angle to the valve body.
3.
Open the bleed-type master air valve (F).
4.
Open the inductor plate vent by turning the knob
(10) counter clockwise.
(10) counter clockwise.
5.
Pull open the snap-over valve (27) to raise the ele-
vator.
vator.
NOTE: To adjust the elevator speed, turn the restrictor
valve screw (46) clockwise to decrease the speed or
counter clockwise to increase the speed.
valve screw (46) clockwise to decrease the speed or
counter clockwise to increase the speed.
6.
Center an opened 400 lb (181.4 kg) drum under the
inductor plate so the drum bottom touches the ele-
vator base (A).
inductor plate so the drum bottom touches the ele-
vator base (A).
7.
Make the top of the fluid concave by scooping fluid
from the center to the sides of the container.
from the center to the sides of the container.
8.
Loosen the setscrews (73), holding pump mounting
plates to the mounting bracket (C). Align the pump
and inductor plate with the drum.
plates to the mounting bracket (C). Align the pump
and inductor plate with the drum.
NOTE: Keep your fingers and hands away from the
sides of the drum or inductor plate to avoid pinching
them when raising and lowering the pump.
sides of the drum or inductor plate to avoid pinching
them when raising and lowering the pump.
9.
Push in the snap-over valve (27) to lower the pump
while guiding the inductor plate into the drum.
while guiding the inductor plate into the drum.
10. Press down the pump and rock it back and forth to
seat the inductor plate. This helps eliminate air
trapped beneath the plate. Continue this action until
fluid appears at the vent opening (D).
trapped beneath the plate. Continue this action until
fluid appears at the vent opening (D).
11. Be sure that the pump is aligned vertically and
tighten the set screws (73).
12. Close the inductor plate vent by turning the knob
(10) clockwise.
13. For Models 226013, 226018, and 244637 only:
a.
Open the bleeder valve (94) at the pump outlet
by turning the thumbscrew counter clockwise.
b.
Open the ball valve (65) until all air trapped in
the pump and under the plate are pumped
through the valve.
c.
Close the ball valve and the bleeder valve.
d.
Regulate the pump speed with the ball valve
handle.
14. All Models: Always use the lowest possible pump
pressure necessary for good delivery. Higher pres-
sures cause premature pump wear and usually do
not produce better results.
sures cause premature pump wear and usually do
not produce better results.
NOTICE
Always close the ball valve (65) as soon as the
inductor plate reaches the bottom of the drum, indi-
cating the drum is empty. Allowing the pump to run
without fluid will cause damage to the pump.
inductor plate reaches the bottom of the drum, indi-
cating the drum is empty. Allowing the pump to run
without fluid will cause damage to the pump.
F
IG
. 9
46
F
27
10
73
A
C
D
94
65
47