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7
SODA OPERATION
1. Carefully fi ll the unit per Blaster Instructions using
a screen sifter and funnel. Note: a suitable screen
sifter such as Eastwood #50417 Sifter/Funnel
must be used to capture any clumps present in
the bag of media.
2. Close all four valves and connect the air supply.
DO NOT EXCEED 125 PSI. For best results, be-
gin with a blaster inlet pressure of 80 to 90 PSI.
To avoid media clumping or caking, be certain to
have a clean, moisture free air supply that includes
an effective moisture fi lter or desiccant system.
3. Open the Inlet Air Supply Valve slowly and
carefully while checking for leakage.
4. Slowly open the Throttling Valve (Fig. 1) to the
1⁄2 position while checking for leakage.
Note:
This valve will require fi ne tuning to provide
optimal media fl ow based on media formulation,
air pressure and desired volume.
5. Slowly open the Media Flow Valve (Fig. 2) to the
full position while checking for leakage.
6. You may now direct the nozzle toward your work
and depress the Nozzle Discharge Lever.
Note:
Some slow, pulsing discharges of media can be expected until the fl ow begins.
7. Once a steady fl ow of media is observed, begin by holding the nozzle 6” to 12” from the work
surface at a 30°-45° angle for best results.
8. Hold the stream against the work until it abrades through the coating revealing an edge.
8. Use the stream as a “wedge” working at the edge to quickly remove the coating.
10. At this point you can vary the position of the Throttling Valve (Fig. 1) from the initial 1⁄2 open
starting setting to achieve an optimum air/media ratio. Note: As there are many variables affect-
ing the fl ow such as media formulation, hardness of coating, air volume, air pressure and atmo-
spheric conditions, this process requires a bit of “trial and error” by experimenting with distance,
angle and throttle position. You will quickly become profi cient at determining the ideal settings.
11. When refi lling the tank becomes necessary, fi rst shut off the Inlet Air Supply Valve, The Throttling
Valve and The Flow Valve. For safety, disconnect the air supply. Next, open the Purge Valve
to release all tank pressure. You may then open the Tank Filler Cap and refi ll following the
procedure in step 1.
12. All unused media MUST be drained from the tank when completing work as any moisture
present in the tank will drain to the bottom of the tank and can create a solid “cake” with the
media, requiring complete disassembly of the apparatus at the bottom of the tank.
Note:
Failure to properly seal or over tightening fi ttings can lead to component failure which
could result in sudden air pressure release and cause serious injury.
13. To drain unused media from the tank, place the open end of The Clear Purge Hose into a suitable
container such as a large bucket or sturdy box with closed seams and cover with a blanket. Using
extreme care, slowly open the Purge Valve and direct the stream of media into the container.
Throttle Valve
(shown in
halfway
position)
Figure 1
Figure 2
Media Flow Valve
