n n m mum Operator's Manual 4-Cycle Gasoline Trimmer/ Brushcutter Model TB490BC IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS P/N 769-00386 (10/02) PRINTED IN USA CAREFULLY
Content Page Calling Customer Support .................................................... 2 Rules for Safe Operation .....................................................
The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and their explanations, deserve your careful attention and understanding. The safety warnings do not by themselves eliminate any danger. The instructions or warnings they give are not substitutes for proper accident prevention measures. SYMBOL SYMBOL _1_ MEANING I_il I danger, warning or caution.
• Wear heavy, long pants, boots and gloves. Do not wear loose clothing, jewelry, short pants, sandals or go barefoot. Secure hair above shoulder level. • The cutting attachment shield must always be in place while operating the unit. Do not operate unit without both trimming]ines extended, and the proper line installed. Do not extend the trimming line beyond the length of the shield. • This unit has a clutch. The cutting attachment remains stationary when the engine is idling.
SAFETY AND INTERNATIONAL SYMBOLS This operator's manual describes safety and international symbols and pictographs that may appear On this product. Read the operator's manual for complete safety, assembly, operating and maintenance and repair information. SYMBOL MEANING SYMBOL MEANING • ON/OFF Indicates danger, warning or caution. • SAFETY May be usedALERT in conjunction SYMBOL with other symbols or pictographs.
Spark Arrestor .,G_ Spark Plug APPLICATIONS As a trimmer: Cutting grass and light weeds Edging Decorative trimming around trees, fences, etc. As a brushcutter: Cutting weeds and light bush of up to 112 inch in diameter Other optional accessories may be used with the TB490BC. Refer to Operating the EZ-Link System for a list of add-ons. Fuel Cap Starter Rope Grip Shaft Grip Throttle Lock-C On/Off Sto_ Throttle Control Shoulder Strap EZ.Link Blade Shield / Shield Mount J-Handle \\ \ Air Filter Cover Sh
On some units, the J-handle may be pre-installed. In this case you must loosen screws and adjust the handle to fit the operator. Go to step 5 if the J-handle is pre-installed. INSTALL AND ADJUST 1. INSTALL (4) Top Clamp -_ Middle Clamp HARNESS WARNING: Always use the shoulder harness when using the cutting blade to avo d serous persona njury. J THE J-HANDLE Place the J-handle between the top and middle clamp pieces (Fig. 1). THE 1. Push the strap through the center of the buckle. 2.
2. Cutting Attachment Shield Screws Hold the locking rod in place by grasping it next to the boom of the unit (Fig. 9). 3. While holding the locking rod, remove the cutting attachment by turning it clockwise off of the output shaft (Fig. 10). Store the cutting attachment for future use. Gear Housing NOTE: The blade retainer under the cutting attachment will be used when installing the cutting blade. Shield Mount Fig.
5. Makesurethatthecuttingbladeis centeredonthe pilot stepandsittingf!atagainsttheoutputshaft bushing(Fig.12), Allk I _III_ I center, the unit will vibrate and the blade I may fly off, causing possible serious WARNING: If the Cutting blade is off- I I personal injury. REMOVE THE CUTTING INSTALL THE CUTTING I Allk l_ I Pilot Step Remove the Cutting Blade Align the shaft bushing hole with the locking rod slot and insert the locking rod into the bushing hole (Fig. 8). 2.
DANGER: OVERFILLING OIL CRANKCASE MAY CAUSE SERIOUS PERSONAL INJURY. Checking and maintaining the proper oil level in the crank case (_annot is important and cannot be overemphasized, Check oil before each use and change as needed. See Changing the Oil. RECOMMENDED 2. Place the unit on a flat level surface. 3. Remove the oil plug / dipstick from the crankcase (Fig. 17). OIL TYPE Using the proper type and weight of oil in the crankcase is extremely important.
RECOMMENDED FUEL TYPE FUELING Old fuel is the primary reason for the unit not running properly. Be sure to use fresh, clean, unleaded gasoline. WARNING: Gasoline is extremely flammable and its vapors can explode if ignited. To avoid serious personal injury, always stop the engine and allow it to cool before filling the fuel tank. Do not smoke while filling the tank. Keep sparks and open flames away from the area. NOTE: This is a four cycle engine.
STARTING INSTRUCTIONS Stop/Off (O) On/Off Stop Control (I) _1 ventilated area outdoors. Carbon monoxide exhaust fumes can bethis ethan a Confined wARNING: Operate unit °nly in a well-area. IJ WARNING: Avoid accidental starting. Remain in the starting position when pulling the starter rope (Fig. 22). The operator and unit must be in a stable position while starting to avoid Serious personal injury. Make Sure that any Add-On item is installed correctly and secure before starting the unit. 1.
OPERATING THE EZ-LINK SYSTEM TM 2. The EZ-Link TM system enables the use of these optional Add-Ons. Blower/Vacuum ........................... TBBV Cultivator ................................ While firmly holding the add-on, push it straight into the EZ-Link TM coupler (Fig. 25). NOTE: Aligning the release button with the guide recess will help installation (Fig. 24). TBGC Edger ................................... TBLE Hedge Trimmer ........................... Snow Thrower ........................
HOLDING THE TRIMMER and body protection to reduce the tisk of _[WARNING: Always wear eye, hearing, foot njury when operat ng this un t. Before operating the unit, stand in the operating position (Fig. 27).
DECORATIVE TRIMMING Decorative trimming is accomplished by removing all vegetation around trees, posts, fences and more. Rotate the whole unit so that the cutting attachment is at a 30 ° angle to the ground (Fig. 29). • Swing the unit in the opposite direction that the blade spins which increases the cutting action. • After the return swing move forward to the next area to be cut plant your feet again. • Ihe cutting blade is designed with a second cutting edge.
MAINTENANCE SCHEDULE Perform these required maintenance procedures at the frequency stated in the table. I hose procedures should also be a part of any seasonal tune-up. NOTE: Maintenance, replacement, or repair of the emission control devices and system may be performed by any non-road engine repair establishment, individual or authorized service dealer. NOTE: Some maintenance procedures may require special tools or skills.
F0_ US_ _itl_ Sp!itLi_!_ 9. Slotted Holes Insert the end of the line into the open hole in the inner reel and pull the line tight to make the loop as small as possible (Fig. 38). 10. Before winding, split the line back about 6 inches. 11. Wind the line in tight even layers in the direction indicated on the inner reel. i / NOTE: I-ailure to wind the line in the direction indicated will cause the cutting attachment to operate incorrectly.
INSTALLING 1. A PREWOUND REEL Oil Fill Plug/Dipstick Hold the OLiterspool with one hand and unscrew the blimp knob clockwise {Fig. 32). Inspect the bolt inside the bump knob to make sure it moves freely. FZeplace the bump knob if damaged. 2. I_emove the old inner reel from the outer spool [Fig. 32). 3. I_emove the spring from the old inner reel [Fig. 32). 4. Place the spring in the new inner reel. O-Ring Full - Add 1.4-1,5 Oz.
CHANGING THE OIL For a new engine, change the oil after the first 10 hours of operation. Change the oil while the engine is still warm. I he oil will flow freely and carry away more impurities. 1. Unplug spark plug boot to prevent accidental starting. 2. Remove the oil fill plug/dipstick. 3. I_our the oil out of the oil fill hole and into a container by tipping the unit to a vertical position (Fig. 43). Allow ample time for complete drainage. Figi 43 4.
AIR FILTER MAINTENANCE iiiiiiiiiiii iiiii i iiiiiiiiiiiiiiiTili%iLiiiiiiiiii Cleaning the Air Filter Clean and re-oil the air filter every 10 hours of operation. It is an important item to maintain. Failure to maintain the air filter will VOID the warranty. _LLLLLLLLLLLLLLLLLLLLiiLLLLLLLLitLLLLLLLLLLLi 1. Open the air filter cover. Push the tab on the right side of the cover in, pull the air filter cover out and to the left (Fig. 45). 5.
_!_a _ Air Fi!ter ROCKER ARM CLEARANCE I his requires disassembly of the engine. If you feel unsure or unqualified to perform this, take the unit to an authorized service center. NOTE: Inspect the valve to rocker arm clearance with a feeler gauge after the first 10 hours of operation and then every 25 hours of operation thereafter. Aaju ia!espeea * I he engine must be cold when checking or adjusting the valve clearance. I his task should be performed inside, in a clean, dust free area.
3. Removethescrewbehindtheenginecover(Fig.53). Adjusting Huts Rocker Arms "- INTAKE Screw Feeler Gauge Figi 53 4. Disconnect the spark plug wire. 5. Clean dirt from around the spark plug. I,Zemove the spark plug from the cylinder head by turning a 5/8 in. socket counterclockwise. Remove the engine cover (Fig. 52). 7. Clean dirt from around the rocker arm cover. Remove the screw holding the rocker arm cover with a large flat blade screwdriver or Iorx 1-25 bit (Fig. 54).
REPLACING THE SPARK PLUG Use only Champion I,ZI_)Z19Hspark plug or equivalent. I he correct air gap is 0.025 in. (0.655 mm.). Remove the plug after every 25 hours of operation and check its condition. 1. Stop the engine and allow it to cool. Grasp the plug wire firmly and pull the cap f'rom the spark plug. SPARK ARRESTOR 1. MAINTENANCE I;_emovethe mL_ff]ercover. See RockerArm Cfearance. 2.
CLEANING NOTE: I,Zemove the spark plug and drain all of the oil from the cylinder before attempting to start the trimmer after storage. 4. Use a small brush to clean off' the outside of the unit. Do not use strong detergents. Household cleaners that contain aromatic oils such as pine and lemon, and solvents such as kerosene, can damage plastic housing or handle. Wipe off any moisture with a soft cloth. STORAGE , Change the oil referring to Chanqtng the Oil.
CAUSE ACTION Empty f'uel tank Fill fuel tank with new fuel Primer bulb wasn't pressed enough Old f'uel Press primer bulb fully and slowly 10 times Fouled spark plug Replace or clean the spark plug Plugged spark arrestor When it is above 40°F outside, the Cold Start Lever is in the CLOSED/DOWN position When it is below 40°1- outside, the Cold Start Lever is in the OPEN/UP position Clean or replace spark arrestor Drain gas tank and add fresh f'uel Flip the Cold Start Lever to OPEN/UP Flip the (;old
Engine lype .......................................................................................................................................... Air-Cooled, 4-Cycle Displacement ......................................................................................................................................... 1.6 cu. in. (26.2 cc) Clutch lype .........................................................................................................................................................
EPA Emission Control Warranty Statement Your Warranty Rights and Obligations Ihe Environmental Protection Agency and MID SOUl HWESI INC (MID) are pleased to explain the emission control system warranty on your 2002 and later small off-road engine. New small off-road engines must be designed, built and equipped to meet stringent anti-smog standards.
ENGINE PARTS - MODELS TB490BC 4-CYCLE GAS TRIMMER PPN - 41BDT49C063 ( ® @ @ @ @ @ I @ @ @ E29
ENGINE PARTS - MODEL TB49OBC 4-CYCLE GAS TRIMMER PPN - 41BDT49C063 Item Part No, Descr!ption Pa_ NQ, Descr!ption 1 2 3 4 5 753-04083 791-182339 791-181025 791-182098 791-182099 Engine Cover Engine Cover Screws Valve Cover Screw Valve Cover Valve Cover Gasket !tern 46 47 48 48 50 781-181247 753-1 lgg 753-04286 781-182368 791-181079 Palrrut Recoil Pulley Recoil Sprfng Nut Clip Pull Handle 6 7 8 8 10 11 12 13 791-182340 791-182101 791-182100 791-182341 791-182103 791-181038 791-182102 791-181033 R
BOOM AND TRIMMER PARTS - MODEL TB49OBC 4-CYCLE GAS TRIMMER PPN - 41BDT49C063 / ij / // / !tem Pa_ No, 1 2 3 4 5 6 7 8 8 10 11 12 13 14 15 16 17 18 18 20 21 22 23 24 25 26 27 28 28 30 31 32 33 34 35 36 37 38 38 40 791-00840 791-00841 791-00842 791-182688 791=182405 791=618327 753-1247 791=181099 791-683295 791-181811 791-181812 791-181813 791-181814 791-181815 791-145569 753-1190 791-182057 791-181617 791=181881 791=181886 791-182541 791-613300 791-182200 791-182183 791-182195 791-145569 791-147492 79
MA NUFACT U RER:S ElM Ihe limited warranty set forth below is given by I roy-Bilt LLC with respect to new merchandis_ purchasedand used in the United States, its possessions and territories. Iroy-Bilt LLC warrants this product against defects in material and workmanship for a period of two (2) years commencing on the date of original purchase and will, at its option, r_pair or replace, free of charge, any part found to be defective in material or workmanship.
