Hog Technologies Stripe Hog SK2000, Operation Manual

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Operation
The operator should consider the requirements of
the current removal project and select the mode
that works best in that situation. The following
is a brief description of each mode.
Manual Mode:
When the THROTTLE toggle switch is set to MAN-
UAL mode, the Hydro-Throttle controller on the
UHP pump manifold is bypassed and the auxiliary
engine remains at the operating RPM set by the
operator when the DUMP VALVE switch is turned
OFF. This allows the water blasting system to de-
velop full pressure immediately when the DUMP
VALVE switch is turned ON. Because full pressure
is immediately available to the blasting head,
MANUAL mode is the desired position in most
operations.
Automatic Mode:
When the THROTTLE toggle switch is set to AU-
TOMATIC mode, the Hydro-Throttle controller on
the UHP pump manifold is activated and continu-
ously monitors UHP pressure to the blasting head.
The sensor in the Hydro-Throttle sends a signal
to the engine controller to automatically advance
auxiliary engine speed to the preset operating
RPM programmed in the controller when the
DUMP VALVE switch is turned ON, supplying high
pressure to the blasting head. The Hydro-Throttle
sends a signal to the engine controller to decrease
the auxiliary engine speed to idle when the DUMP
VALVE switch is turned OFF and high pressure to
the blast head stops.
The computerized engine controller increases or
decreases engine speed gradually, so full pres-
sure is not immediately available when the DUMP
VALVE switch is turned ON to resume blasting
operations. Consequently, automatic mode may
not be desirable in some operations.
3.7 Water Blasting Operations
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
selection. There are many variables that affect
blasting efficiency, productivity and the profile
of the blasted surface. As the operator becomes
more experienced, the selection process becomes
more refined and easier.
Typical SK2000 Stripe Hog In Operation
Generally, large, high volume (.015 - .017) 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 pro -
gram that dramatically reduces the learning curve
and increases productivity. If you are new to water
blasting, we highly recommend that you consider
this factory training for your operators. You can
also contact Hog Technologies Customer Service
department for assistance 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.