P
P
H
H
O
O
E
E
N
N
I
I
X
X
U
U
N
N
L
L
I
I
M
M
I
I
T
T
E
E
D
D
L
L
L
L
C
C
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
P
P
H
H
X
X
-
-
2
2
0
0
0
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
U
U
S
S
E
E
R
R
S
S
G
G
U
U
I
I
D
D
E
E
P
P
G
G
.
.24
AIRLOCK
Replacing Airlock Critical Components
Diminished performance or a noticeable drop in blast pressure at the gun may indicate a worn or
damaged component in the airlock. Most airlock problems are typically caused by a foreign object
(airborne or otherwise) falling through the hopper pellet screen, mixing with the dry ice pellets, and
becoming lodged inside the airlock or doing damage as it passes through to the blast hose and gun
.
(Note: You can avoid unnecessary expense and repairs by closing the hopper lid after filling with
ice and prior to blasting.)
In order to properly inspect or replace the critical components, the airlock
assembly must be removed from the unit. To do this:
1.
Remove air supply hose from the PHX-200. Also remove the gun and blast hose assembly if
attached. (pic 1)
2.
To avoid spillage, remove the lubricator bowls and set aside. (pic 2)
3.
Detach the inlet blast air hose coupling from airlock assembly inlet. (pic 3).
4.
Carefully place some blocks on the ground. Lay the unit on the blocks with the control panel
facing down using care to prevent the regulator and e-stop button from being damaged. Be
careful that hinged metal lid does not “flop” backwards suddenly during this procedure. (pic 4)
5.
Remove the airlock motor air supply lines from the push fittings. (pic 5)
6.
Remove the large cotter pin from the airlock retaining latches. (pic 6)
Pic 1
Pic 2
Pic 4
Pic 5
Pic 6
Pic 3
