RD 12/RD 12A Operationwc_tx000865gb.fm 272.4 Water Spray SystemSee Graphic: wc_gr002946, wc_gr003638Water from the tank is fed to the spray bars by an electric pump. Theflow of the water is controlled by a switch and a rotary dial.Press the upper half of the water spray switch (61) to turn the waterpump on. Turn the water spray dial (62) clockwise to increase thespray frequency. Turn the water spray dial counter-clockwise todecrease the spray frequency. Press the lower half of the water sprayswitch (61) to turn the water pump off.Only use clean water. Dirty water, even when filtered, will rapidly clogthe tubes of the spraying equipment.During winter, or when temperatures drop to below 0°C (32°F), drainthe water tank and spraying equipment. Run the water pump toremove excess water from the system. Drain the water through thewater drain plug (41) located near the bottom of the rear frame,through the sprayer end plugs, and the water filter. Freezing water maycause broken hoses, filters and water pumps and may deform thewater tank.wc_gr0036386261