Operating Instructions
1-9DEZ
Equipment Calibration
August 2005
7.1 Equipment Calibration
The following list of recommended set-up adjustments and reference values should be
used to help obtain the optimal performance from your blast cleaning system. These
should be used as starting points and can be fine-tuned after trial and observation.
WARNING
:
CALIBRATION OF ITEMS 1, 2 AND 6 MUST BE MADE WITH THE 1-
9DEZ IN MAINTENANCE MODE (SEE SECTION 1.2).
1.
Blast Housing Height
- The bottom of the blast housing (magnets) should be
between 1/8” to 1/2” above the surface being cleaned. A smaller clearance
can be obtained for smooth surfaces but height may need to be adjusted for
rough surfaces.
2.
Control Cage Setting
- See Section 5, “Setting the Correct Blast Pattern”,
figures A, B and C.
3.
Abrasive Selection Recommendations
(Steel Shot Size)
•
Brush blast of smooth concrete: S-170 to S-280 (smaller size will
produce a brighter etch)
•
Rough concrete etch for coatings: S-330
4.
Exhaust Hose Length
- 25 feet of 2” I.D. exhaust hose; longer or shorter
sections of hose may affect abrasive consumption or abrasive cleaning.
Contact your Blastrac representative before changing the exhaust hose
length.
5.
Dust Collector
– Inspect Dust Collector at 15-minute intervals to see how
quickly the dustbin is being filled. Do not allow dustbin to overfill. Once fill
time is determined, dump the dust at the corresponding time interval. For
optimal performance use the Blastrac
®
Turbo Vac II.
6.
Handle Height
– The handle height can be adjusted to match the individual
operator’s height. This is accomplished by loosening the knobs and then
moving the handle to the desired position. Tighten the knobs when finished.
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Summary of Contents for 1-9 DEZ
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