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Scheduled Maintenance
4. Open the clean water supply valve between
the tanks and the charge pump.
5. Open the inlet valve at the charge pump.
6. Open the inlet valve on the UHP pump mani-
fold.
7. Remove the high pressure hose from the
thru-shaft and drain all water from the hoses.
Reinstall hoses to prevent contamination when
draining is complete.
8. Remove the spray bars. Drain the water, then
cap the inlet tting and store.
9. Disconnect the hose from the diverter valve
on the UHP Pump Manifold and drain all water
from the hose.
10. Remove the lid from the bilge pump sump and
drain the water from the drain hose.
11. Disconnect the inlet and outlet hoses from the
bilge pump and drain the hose.
12. Briey activate the bilge to remove trapped
water from the pump, about a cupful.
13. Connect an air pressure hose to the drain valve
tting at the charge pump and blow clean air
through the open system at low pressure.
Open and close valves as necessary to increase
airow to specic areas.
14. Remove the caps on both clean water lter
canisters and completely drain the water. Then
install new lters.
Reactivating a truck with a drained system:
1. Make sure the truck is parked on level ground
and the waterblasting system is shutdown with
the truck in the service position.
2. Reinstall any disconnected hoses and add clean
fresh water to the clean water tanks.
3. Press the Start button on the joystick console
to close the diverter valve before the charge
pump is engaged.
4. Follow normal Start Up procedures and make
sure the truck is in Operate Mode with the
waterblasting system activated. The truck
engine must be at idle.
5. Open the clean water supply valves and turn
ON the charge water pump.
Typical Spray Bar & Inlet Fitting
Bilge Pump
Bilge Pump Sump
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