Hog Technologies Stripe Hog SK3000, Operation Manual

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23
SK3000 Systems
Always monitor the water level in the clean water
tank and make sure you have enough water for
the intended shift. Never operate the engine when
the water tank is low on water and always stop
blasting and shut the engine down immediately
when low water is observed.
Two filters in the supply line between the charge
pump and high pressure pump remove any small
debris that may accidentally find its way into the
water supply tank. The first filter is a 10 micron
(Nominal) filter to trap larger particles and the
second filter is a 1 micron (Absolute) filter to trap
small particles that pass through the first filter.
The filters are critical to the proper operation of
the high pressure blasting system and should be
checked frequently and replaced as necessary.
Dirty charge water filters are the number one
reason for low charge water pressure that can
cause the UHP pump to cavitate and reduce the
flow of lube water to the packing seals. Therefore
it is normal and recommended that the filters be
changed daily.
Please remember that the filters can be under
pressure. Always make sure the engine is shut-
down and the pressure has been bled from the
system before removing the filter caps. You
should also make sure to thoroughly flush the filter
canisters and charge water system when the filters
are changed and before activating the UHP pump.
A valve located on the low pressure (charge
water) side of the pump can be opened to flush
the charge water side of the pump if the system
becomes contaminated. This valve is also used to
assist in purging the system after a filter change
or adding anti-freeze in cold weather operations.
A supply of clean fresh water is critical to the
proper operation of a high pressure waterblasting
system. You should only use clean fresh water
from a potable water source, usually a fire hy -
drant, and make sure to keep supply hoses and
the area around the tank fill valve clean. Never
use water drawn from retention ponds, canals or
other non-potable sources.
Packing Lube Water and Bilge Pump
Lube and cooling water for the plunger packing
is provided by three cooling lines connected to a
manifold in the charge water supply line near the
pump connection. A metering valve for each line
controls the flow of water to the packing. Lube
water is supplied whenever the engine and charge
Charge Water Filters
A: Absolute (1 Micron) B: Nominal (10 Micron)
Charge Water Pressure Gauge
Charge Water System Flush and Purge Valve