SECTION IV. OPERATION UNDER UNUSUAL CONDITIONS
Refer to applicable manuals for operation of power generating equipment
during unusual conditions.
References to trailer are for Army ROWPU only.
FORDING. No special procedures are required before or during fording. After fording, wash the trailer with fresh
water to remove mud and other contaminants as soon as it is convenient to do so. Pay special attention to the electrical
connections and brake hoses, the springs, and the suspension assembly. Lubricate the entire vehicle in accordance with
the instructions in the Lubrication Order, LO 10-4610-239-12/LI 08580B-12.
EMERGENCY PROCEDURES. If the air supply from the towing vehicle and from the trailer air reservoir should
be interrupted, the emergency spring brakes will lock. Refer to fig. 2-82 as required to reset a locked spring brake.
WATER DEPTH/WAVE CONDITIONS. When waves of 2 4 feet at water source exist, or when water depth is too
low to prevent sand or debris from entering strainer at water source, it will be necessary to backwash multimedia filter
COLD WEATHER. Locating, installing and operating the equipment at subfreezing temperatures requires taking
precautions. Adequate shelter and heating are required when operating in temperatures below 32 °F (0 °C). When
locating the equipment take advantage of existing shelter and windbreaks. Erect tenting shelters for protection. The
filtered water storage tanks may be installed inside a tent or other shelter. Filtered water may be recirculated with the
distribution pump between the two filtered water storage tanks to prevent freezing in the hose lines, tank outlets and pump.
Fuel, coal or wood burning heaters or other heating devices may be installed inside the erected tents to protect the
equipment and prevent freezing of water. When the equipment is to be shut down, all hoses must be disconnected from
pumps, and all pumps, hoses, pipes and tanks drained quickly. All drain and vent valves must be opened and all
equipment inspected to assure complete drainage. During cold weather, keep in mind the following warnings, cautions
Turn valves slowly during cold weather, because metal contracts and
becomes very brittle.
Inspect the ROWPU closely for split or frozen hoses, clogged strainer, etc.
To prevent hands from freezing to metal, wear rubber gloves when
handling and setting valves.