VI
A Product of Hi-Vac Corporation
OPERATIONS, SERVICE AND PARTS MANUAL
WARNINGS
X-VAC HYDRO EXCAVATOR MACHINES
X-VAC Hydro Excavator machines are designed to remove material in an underground environment.
These systems operate under high pressure conditions with low water flow. Therefore, operators of
these systems must be aware of possible hazards. This is not a complete list of all possible hazards,
but represents typical hazards and types of hazards. At all times, the operator is responsible for the
proper use of the machine.
Operators of X-VAC Hydro Excavator machines should be aware of the following safety
warnings:
• Using this machine for purposes other than hydro excavation is not recommended.
• Water hose that is damaged into the braided lining must be repaired or replaced.
• Fittings used on water hose must be of a type and installed in a manner that is approved by
the hose manufacturer.
• The handgun is designed to shut off automatically when the actuator handle is released.
Never use a forward jet nozzle that will not turn off when released.
•
The handgun remains pressurized after use. After shutting off water supply, squeeze actuator
handle to relieve pressure before storing or before disconnecting the handgun from hose.
• Never operate the water system with the relief valves removed, or improperly adjusted
The main relief valve is set at 3500 psi. Do not operate at pressure readings higher than these
unless the manual specifically states that the system has been designed for higher pressures.
• Never walk under raised components such as hydraulically actuated tanks, doors, etc.
Whenever these components are raised, props must be used to protect workers who must
work under them.
• Never operate the machine in a stationary position without first setting the brakes, and shifting
the rear axle out of the drive line. Always use wheel chocks.
• Never move the vehicle with the boom in a raised or otherwise unsecured position.
• Always turn off unit power when moving the vehicle.
• Always check for overhead obstructions before operating boom.
YOUR LIFE COULD DEPEND ON IT!!!
