Section III. PRINCIPLES OF OPERATION
The laundry system consists of the following functional systems:
Washer. The washer is powered by an externally-mounted motor and drive train. The washer is
controlled either automatically or manually and has a 60-pound (27 kg) capacity. Two 60-pound (27 kg)
loads can be washed per hour in the automatic mode. Automatic operation is provided by a washer
control console to regulate all functions of the laundry cycle. These functions are the number of washes
and rinses, water level, and water temperature. Washer Formula Cards, used to operate the controller,
are pre-punched with standard cycles. Blank Washer Formula Cards (10 each), with a card punch, are
also supplied and can be used for different washing cycles depending on the length of cycle desired.
Manual operation has a variable wash time of up to 60 minutes.
Extractor. The extractor uses centrifugal force to extract water from the wash load prior to the drying
process. It spins at 1700 rpms and is powered by a 3-hp (2237 W) motor. The extractor control has a
10-minute variable timer and has a load capacity of 30 pounds (14 kg) dry weight.
Dryer. The dryer is powered by an externally-mounted motor and drive train. It has a capacity of 30
pounds (14 kg) per load, approximately four loads per hour. Controls provide for an adjustable range of
15 minutes for the drying cycle. Air is heated by a fuel fired air heater mounted on the dryer.
Water Heater. The water heater heats incoming water for the washer. Refer to TM 10-4520259-13&P.
Centrifugal Pump Unit. The portable, centrifugal-type water pump is mounted in a carrying frame. The
pump is stored on the right front side of the trailer during transport. During use, it is placed near the
water source and connected to the facility by a water output hose and power cable. After the initial
prime, the pump will deliver 70 gallons (256 liters) of water per minute at a 25 foot (8 meters) head loss.
Air Compressor. The air compressor provides air pressure for the operation of washer water intake and
drain valves and the water heater hot water valve. The adjustable range of compressed air is 20 to 100
psi (138 to 690 kPa).
Generator. The generator is mounted on the right-hand side of the trailer. Refer to TM 5-6115585-12 for
general description. The Laundry Unit operates on 60-Hertz, 3-phase, 208 vac power. A power
distribution panel provides power distribution from the generator to the components of the Laundry Unit.
The panel includes the necessary circuit breakers for power distribution and safety to the facility
Trailer. The trailer is the 5-ton, 4-wheel (tandem axle), flatbed type. Leveling jacks are on the four
corners of the trailer to provide stability and level during operation of the Laundry Unit. Refer to TM 9-