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Section 3 - Operation
3.6 Blasting Procedure
Overview
Before you start the job, you should evaluate the
pavement and the material to be removed. Choose
the appropriate spray bar and nozzles best suited
for the job. You should also consider the desired or
expected profile of the blasted surface in your selec
-
tion. There are many variables that affect blasting
efficiency, productivity and the profile of the blasted
surface. As operators acquire experience, the selec-
tion process becomes more refined and easier. Refer
to the visual impact guide for additional information.
Generally, large, high volume (.013 - .015) nozzles
are the most aggressive and provide faster results.
However, they also provide greater potential for
damage and a course profile. Consequently, high
volume nozzles should be used only on strong
pavement (concrete or newer pavement). Small,
low volume (.007 - .011) nozzles are less aggres-
sive and will provide somewhat slower results but
provide less potential for damage and a smoother
profile. Low volume nozzles are well suited for
weak pavement (older or damaged pavement).
Low volume nozzles are typically a better choice for
inexperienced operators on any surface.
Hog Technologies offers an on-site training program
that dramatically reduces the learning curve and in-
creases productivity. If you are new to waterblasting,
we highly recommend that you consider this factory
training for your operators. You can also contact Hog
Technologies Customer Service department for as-
sistance in choosing spray bars and nozzles or more
information regarding the factory training program.
CAUTION
THE PAVEMENT WILL BE DAMAGED IMMEDIATELY IF HIGH
PRESSURE BLASTING IS ACTIVATED WITHOUT THE HOG
HEAD MOVING. ALWAYS MAKE SURE TRUCK IS MOVING
BEFORE SUPPLYING HIGH PRESSURE TO THE BLAST HEAD.
SH7500 In Operation
Summary of Contents for STRIPE SH7500
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Page 167: ...167 Appendix 2 Tools Spare Parts...
Page 168: ...168 Appendix 2 Tools Spare Parts...
Page 169: ...169 Appendix 3 Daily Report Pre Op Checklist 1 877 HOG ROAD WWW STRIPEHOGSUPPORT COM 60...
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