5. If the diver operating the unit must be replaced or the cleaning operation must be
interrupted or terminated, shut down the engine by moving the throttle lever down to
adjust engine RPM to “MIN” (Figure 18) and turning the key to the “OFF” position
(Figure 16). Turn off the feed pump (Figure 13),
and then release the water pressure in
the hose(s) by squeezing the gun trigger to the open or “ON” position (Figure 19)
while
under water
.
Revert back to step 1 of the operating instructions when the replacement
diver is ready to continue cleaning.
6.
Ensure that the gun is submerged any time the engine and pressure pump are operating.
Adjusting the CaviBlaster
®
system for maximum performance:
1. If using a calibration pressure gauge situated between the pressure hose and the
CaviBlaster
®
gun, the water pressure should be 2,500 psi with the gun submerged and
the gun trigger in the open or “ON” position.
The pressure is adjusted by turning the
nuts on the end of the pressure-regulating unloader (Figure 20).
This adjustment
increases or decreases the flow of water through the bypass hose when the CaviBlaster
®
gun trigger is in the open or “on” position. The flow of water through the bypass hose,
in turn, determines the flow of water through the pressure hose and the gun. Less flow
through the bypass hose means more flow through the gun which translates to higher
velocity and pressure.
There should always be a trickle of water through the bypass
when the gun trigger is in the open or “ON” position.
This ensures that the bypass will
open without a pressure shock wave damaging the pump when the gun trigger is
released to the closed position.
2. If using a pressure gauge located on the
CaviBlaster
®
power unit, the water
pressure will need to be higher to account
for sidewall friction loss in the pressure
hose. The pressure at the pump should be
2,500 psi plus 0.75-psi per foot of
pressure hose. For example, if using the
CaviBlaster
®
with 100 feet of pressure
hose, the pressure gauge located next to
the pump should indicate 2,575 psi.
Pressure adjustments are made in the
same manner as described above.
There
should always be a trickle of water
through the bypass when the gun trigger
is in the open or “ON” position.
Figure 20
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9
CaviBlaster 1725-G Operations Manual
For More information please email [email protected] or call 1-(352)275-5319
