MODEL 1-8DEZ BLASTER
OPERATING MANUAL
SECTION 5
START-UP PROCEDURES & PRECAUTIONS
JUNE 2007
(cont) Remove the screen and check the butterfly valve at the bottom of
the hopper. It should be in the horizontal position. Replace the bottom
screen and add approximately eight (8) to ten (10) pounds of abrasive.
The level of this abrasive should reach the bottom of the screen. Do not
overfill or the blast unit will malfunction. Replace the separator lid and
secure clamps (see Figure 4.5.1 on page 24).
11.
Check the magnetic seals on the bottom of the blast unit for metallic
contaminants such as nuts, bolts, etc. remove any foreign objects. Push
the blast unit forward at a normal working pace. Deposit a layer of
abrasive on the floor in front of the magnets. Drive the machine over the
abrasive to charge the magnets with a layer of abrasive. The abrasive will
form a seal between the magnets and the floor. Remove any excess
abrasive from the floor.
12.
Lock wheel motor in ON position.
13.
Connect electrical box power cord to site power outlet.
14.
Turn on dust collector
15.
Turn on main power on electrical box
5.2 BLAST CLEANING
1.
Start walking forward and ease the shot valve open by pulling up on the
shot valve handle.
Caution: Never operate the shot valve if the machine is not
moving; this could dig a hole in the concrete floor resulting in
timely repairs.
2.
After cleaning a five-foot test strip, close the abrasive valve, stop the
machine and check the cleaned area. The texture should be even across
the 8 inch path.
3.
If the brightness or texture of the test strip is uneven, refer to Section 6,
“Blast Pattern”, to adjust the “HOT SPOT”.
Shot Blasting
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