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manual abstract
Always use a debris shield designed for use with a blade when attaching a blade to your trimmer. This type of debris shield does not have a cutoff knife. Metal blades are supplied with a cover surrounding the edge of the blade. For safety, and to protect the blade, the cover should be installed whenever the trimmer is not in use. If installing a metal blade on, a Honda trimmer equipped with a loop handle, also install the Honda conversion kit that includes a full shoulder harness, a barrier bar, and a debris shield for metal blades. Follow the installation instructions and safety information that come with the kit. Grass/Weed Blades Grass/weed blades, which may be plastic or metal, are used as an alternative to nylon monofilament line for cutting grass and ordinary weeds. However, blades should never be used for edging against solid surfaces. Weed/Brush Blades These metal blades have chisel-shaped teeth that are used for cutting tough field grass, thick weeds, and light brush. They are not designed for sawing woody material. The teeth must be sharp for good results. Brush/Wood Blades These metal blades are used for sawing through saplings, shrubs, and woody brush. The teeth must be sharp for good results. Brush/wood blades will also cut grass and weeds, but they are not efficient for that purpose. CUTTING LINE BRUSH/WOOD BLADE DEBRIS SHIELD DEBRIS SHIELD GRASS/WEED BLADE WEED/BRUSH BLADE BRUSH/WOOD BLADE 8 RECOMMENDED CUTTING ATTACHMENTS CUTTING ATTACHMENT APPLICATIONS 0 A o o GRASS AND LIGHT WEEDS OK OK OK X THICK WEEDS AND LIGHT BRUSH X X OK X X X X OK Your Honda trimmer servicing dealer has cutting attachments that have been designed and approved for your trimmer and are covered by warranty. Non-Honda attachments are usually designed for universal applications. Although aftermarket attachments may fit on your trimmer, they may not meet factory specifications and could make your trimmer unsafe. 9 CONTROLS & EQUIPMENT COMPONENT & CONTROL LOCATIONS CHOKE LEVER SPARK PLUG CAP AIR CLEANER COVER UMK422LNA UMK422LTA UMK431LN A UMK431LTA SPARK ARRESTER FUEL RETURN TUBE (clear) CUTTING-LINE HEAD DEBRIS SHIELD WITH CUTOFF KNIFE DRIVE SHAFT HOUSING IGNITION SWITCH THROTTLE TRIGGER UMK431UNB A (supplied with two cutting attachments and debris shields) GEAR CASE IGNITION SWITCH BLADE DEBRIS SHIELD FOR BRUSHWOOD BLADE THROTTLE SET BUTTON OPERATOR PRESENCE LEVER CUTTING-LINE HEAD DRIVE SHAFT HOUSING HARNESS HANGER DEBRIS SHIELD WITH CUTOFF KNIFE U-TYPE HANDLEBAR 10 CONTROLS & EQUIPMENT CONTROLS Choke Lever The choke lever opens and closes the choke valve. The CLOSED position enriches the fuel mixture for starting a cold engine. The OPEN position provides the correct fuel mixture for operation after starting, and for restarting a warm engine. Ignition Switch The ignition switch controls the ignition system. The ignition switch button must be in the ON (I) position for the engine to start and run. Moving the ignition switch button to the OFF (O) position stops the engine. Operator Presence Lever The operator presence lever blocks the throttle trigger. This safety feature prevents unintentional throttle operation if the trimmer is bumped while the operator’s hand is not on the control handle. When the operator presses the presence lever by gripping the control handle, the trigger moves freely. CHOKE LEVER U-type handle: Loop handle: IGNITION SWITCH BUTTON Throttle Trigger The throttle trigger controls engine speed. Pulling the throttle trigger toward the grip increases engine speed. The trimmer will have the greatest cutting force at maximum engine speed. Releasing the throttle trigger reduces engine speed. At idle, the cutting-line head or blade should coast to a stop. THROTTLE TRIGGER IDLE / ' (cutting / /1 attachment stops) OPERATOR PRESENCE LEVER FAST (cutting attachment rotates) 11 CONTROLS & EQUIPMENT Throttle Set Button The throttle set button is used to hold the throttle trigger at the fast idle position for starting. Do not allow the cutting line or blade to contact any obstruction when starting the engine with the throttle button engaged To engage the throttle set button, press the operator presence lever by gripping the control handle, pull the throttle trigger, then press and hold the throttle set button while releasing the throttle trigger. To disengage the throttle set button, simply pull the throttle trigger The throttle set button automatically disengages when the throttle trigger is pulled. Do not use the throttle set button while operating the trimmer. The trimmer will not return to idle, and the cutting-line head or blade will continue to spin, until the set button is disengaged and the throttle trigger is released. PRIMING BULB FUEL RETURN TUBE \\ (clear plastic tube) Priming Bulb Pressing the priming bulb pumps fuel from the fuel tank to the carburetor. This procedure is necessary for starting a cold engine and...
Other models in this manual:Hair Clippers - UMK431 (1.26 mb)