Hi-Vac X-Vac Hydro Excavator X15 Series, Инструкция по эксплуатации, обслуживанию и ремонту, Страница: 29 / 87

PRINCIPLES OF OPERATION 17
AQUATECH OPERATIONS, SERVICE AND PARTS MANUAL
A Product of Hi-Vac Corporation
PRINCIPLES OF OPERATION
HOW TO USE YOUR HYDRO EXCAVATOR UNIT
IMPORTANT SAFEGUARDS:
1. When entering any excavation, proceed as recommended in the APWA handbook on safety. Follow
all state and federal regulations.
2. Use only genuine Hi-Vac hose and repair parts.
3. Use Cold Weather Recirculation in temperatures below 32
o
F.
4. Check hose and water network for weak, worn or leaking places. Repair or replace if necessary.
5. Check for overhead lines that could come in contact with the boom.
Before proceeding with the following instructions make certain that there is at least 120 psi of air
pressure in the chassis air reservoir or damage to the PTO may result.
BEFORE GOING TO THE WORK-SITE:
1.
Perform required maintenance as specified in the maintenance schedule.
2. Perform required maintenance on truck chassis as specified in truck chassis manual.
3. Check to see that the boom is secure in the boom rest and the boom pendant control secure
in a tool box or in the cab.
4. Check to assure that all tools are secured, and that all cabinet doors are closed and latched.
5. Fill the water tank. Please refer to one or more of the following water level indicators.
a. The sight tubes located on the rear of the water tanks shows the direct water level
in all tanks.
b. Low water warning light in the cab indicates low water.
6. Inspect and clean water suction line strainer and exhauster final filter.
Before proceeding to drive this vehicle, special attention must be given to assure that the boom is resting
properly in the travel position. Also, to avoid damage, be sure that the pendant control is properly
wound and placed in a tool box or truck cab.
HYDRO EXCAVATING AT THE WORK-SITE:
1. Position the unit as close to the work location as possible. Set the parking brake and block the wheels.
2. Open the water pump supply valve completely.
3. Disengage the rear axle by shifting the main drive of the tower PTO. The transmission must be in
neutral. On units with standard transmissions it is also advisable to depress the clutch pedal to the
floor during this operation.
4. Engage water pump. Refer to the dashboard and truck labeling for the correct gear range in which to
operate your Hydro Excavator machine. Select the correct gear range and proceed to the side
operator’s station to operate the unit. Your Hydro Excavator machine must never be run at speeds
higher than specified on the dashboard and truck labeling . Running the engine at a higher rpm may be
unsafe and result in personal injury and damage. Upon such use, the warranty becomes null and void.
If you cannot locate this information, please call your selling dealer, or the Hi-Vac Corporation direct at
(740) 374 -2306.
5. At the side operator’s station, move throttle control lever up momentarily to increase engine speed,
down to decrease. The needle on the tachometer indicates the engine speed.
Cold weather precautions: If the unit is subjected to freezing temperatures, ice will probably form in the
hydro excavation hose and must be ejected for proper operation. Leave the hose in its traveling position,
the engine at idle speed, and run water through the hose for at least one minute or until all ice is ejected. If
pressure starts to rise, the hose is plugged.