Caviblaster 0520-G Manual

Operation &
Maintenance
Manual
Model 0520-G

Model 0520-G –Manual Start
Operating Instructions
WARNING: To ensure operator safety and efficient operation of the
CaviBlaster®, it is essential to follow these instructions.
Preparing the CaviBlaster system for operation:
1. Inspect the CaviBlaster® power unit, hose and gun for any signs of damage.
2. Inspect garden hose inlet (Figure-1) to ensure that it is not dirty or clogged. Clean as necessary.
Water Inlet - Figure #1
3. Check lubricating oil(s) and fuel levels: Assure proper oil level in engine crankcase, pressure pump and
fuel level in fuel tank (gasoline). Figures 2, 3, 4.
Engine Oil Level - Figure #2 Pump Oil Level - Figure #3 Fuel Level - Figure #4

4. Fill lubricating oil(s) to proper level(s) in the pressure pump (Red cap on pump) (Figure-5) and engine
(Yellow cap on head cover) (Figure-6) per manufacturers’ operating manuals.
Pump Oil Red Cap - Figure #5 Yellow Cap on head cover - Figure #6
NOTE: Pressure Pump Oil (SAE 30W-Non-Detergent) Figure-7; Engine Oil (SAE 10W 30) Figure-8
Pressure Pump Oil - Figure #7 Engine Oil - Figure #8
5. To provide water to the CaviBlaster® 0520-G power unit, connect garden hose to the water inlet
connection on the power unit (Figure-9).
Connect Garden Hose to Water Inlet - Figure #9

Only fresh water can be used with this system.
When feeding the CaviBlaster® with an alternate water source, the source must supply water at a volume
of greater than 5 gallons per minute at a maximum pressure of 70-psi. Connect the water source to the
inlet of the pressure pump (Figure-9). Ensure that the garden hose is connected to the pressure pump and
the water is on prior to starting the pressure pump.
To make sure the source is providing 5 gallons per minute try filling up a 5 gallon bucket in less than a
minute. Figure 10.
Fill up a 5 gallon bucket in less than one minute - Figure #10
Starting the CaviBlaster® power unit:
1. When using a pressurized water source, open the valve to supply water to the system.
2. Ensure that the system is primed with water and that there are no leaks in the system. The pressure
pump is a positive displacement pump and water must be supplied under pressure. Failure to pump feed
water to the pressure pump will result in damage to the pump.
3. Connect the 3/8″ high-pressure hose to the quick-connect plug under the pressure-regulating unloader
(Figure-11). The high-pressure hose has a brass quick-connect socket on the end. The CaviBlaster® Model
0520-G can deliver the required pressure utilizing up to 300 feet of 3/8″ diameter rubber hose.
Connect HP Hose to the quick connect under pressure regulator - Figure #11

4. Move throttle to the On position (figure 12) and fully engage choke (figure 13) and then pull the handle
on the recoil assembly to start engine (figure 14).
Throttle at the On position - Figure #12 Fully engage Choke - Figure #13 Recoil Assembly - Figure #14
5. Connect the gun to the high-pressure hose (Figure-15) and submerge the gun in water.
Connecting the gun to the High Presure Hose - Figure #15
6. It is recommended that the gun trigger be in the open or “ON” position when starting the engine. This
will prevent a pressure shock wave from damaging the pump in the instant that the engine is started.