User manual RL FLO-MASTER MODEL 612BU & 612 VI BACK PACK

[. . . ] Some spray materials are dangerous and should not be used in this sprayer as they can damage the sprayer and cause SERIOUS BODILY INJURY OR PROPERTY DAMAGE. · · · · · · · · · · DO NOT use sprayer if tank or hose is damaged, discolored or brittle, or hose is loose or excessively soft. DO NOT use hot or boiling liquids in this sprayer as this may weaken tank, hose or pump. Read instructions "How to Clean. " DO thoroughly inspect both inside and outside of sprayer before each use. [. . . ] Take one end of the strap and put it through the square loop on the bottom of the tank, then bring it back around to the front. Be sure to adjust the strap to your liking before filling the the tank with liquid. HOW TO FILL: 1. Place sprayer on your back by inserting right arm under shoulder strap and left arm under opposite strap. Snap closed in front so that tank is securely and comfortably on your back 3. A few strokes of the operating lever will provide sufficient pressure to start spraying. Rate of pumping may be slowed down when the stroke begins to meet resistance. Air pressure build-up in cylinder may not allow liquid to pass through. Relieve air build-up by squeezing flow control lever then pump operating lever. For fine mist screw nozzle in (counter clockwise) and out (clockwise) for a coarse stream. Always empty, clean and drain tank and hose immediately after each use. Pressurize the tank with a few strokes and spray some liquid through the nozzle to clean our hose and the rest of the discharge line. Be sure that the hole in the nozzle and the two ports on the nozzle body are completely clean. HOW TO SERVICE: · If air or liquid leaks at fill cap: Inspect valve button in fill cap. Clean seating surfaces and, if necessary, replace with parts from maintenance kit 612RK. · If flow control valve leaks: Clean and examine flow control o-ring, replace if damaged. Make sure extension is pushed all the way into the flow control and securely screwed onto flow control. [. . . ] If you removed supply tube from pump cap replace it before threading on pump cap. FAILURE TO DO SO CAN RESULT IN SERIOUS INJURY. · · If discharge line clogs: Remove nozzle. If discharge line is still clogged: Remove flow control; unscrew cap, making sure not to lose the spring. [. . . ]