Craftsman 536773510 User Manual HIGH WHEEL BRUSH TRIMMER Manuals And Guides L0807088
CRAFTSMAN Line Trimmers/Weedwackers, Gas Manual L0807088 CRAFTSMAN Line Trimmers/Weedwackers, Gas Owner's Manual, CRAFTSMAN Line Trimmers/Weedwackers, Gas installation guides
User Manual: Craftsman 536773510 536773510 CRAFTSMAN HIGH WHEEL BRUSH TRIMMER - Manuals and Guides View the owners manual for your CRAFTSMAN HIGH WHEEL BRUSH TRIMMER #536773510. Home:Lawn & Garden Parts:Craftsman Parts:536773510 Craftsman Grass trimmer (weed wacker) Manual
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6.5 Horsepower HIGHWHEEL WEEDTRIMM_L_ MODEL NO. 536.773510 Caution: Read and follow all Safety Rules and Operating instructions before first use of this product. SEARS, 712490 ROEBUCK 02/17/99 AND CO., Hoffman Estates, IL 60179 U.S.A TABLE WARRANTY STATEMENT ...... SAFETY RULES ................ INTERNATIONAL SYMBOLS .... ASSEMBLY ......................... OPERATION ...................... MAINTENANCE ................. SERVICE AND ADJUSTMENT . ,o OF CONTENTS 2 3 5 6 9 13 16 ,1,, rr,,r SHOOTING CHART ._ 20 SLOPE GUIDE ................. 22 REPAIR PARTS .................... 23 ENGINE REPAIR PARTS ......... 28 SPANISH (ESPA_IOL) ........... PARTS ORDERING/SERVICE 34 ... 56 .... ,r,,,_,r,,, WARRANTY LIMITED TROUBLE TWO-YEAR WARRANTY STATEMENT ON CRAFTSMAN WEEDTRIMMER For two years from the date of purchase, when this Craftsman Weedtrimmer is maintained, lubricated, and tuned up according to the operating and maintenance instructions in the owner's manual, Craftsman will repair, free of charge, any defect in material or workmanship If this Craftsman Weedtrimmer is used for commercial plies for only 90 days from the date of purchase or rental purposes, this warranty ap- This warranty does not cover the following: Expendable items which become worn during normal use, such as spark plugs eta Repair necessary because of operator abuse or negligence, including bent crankshafts and the failure to maintain the equipment according to the instructions contained in the owner's manual WARRANTY SERVICE IS AVAILABLE BY RETURNING THE CRAFTSMAN WEEDTRIMMER TO THE NEAREST CRAFTSMAN SERVICE CENTER/DEPARTMENT IN THE UNITED STATES. THIS WARRANT'( APPLIES ONLY WHILE THIS PRODUCT IS IN USE IN THE UNITED STATES. This warranty gives you specific legal rights, and you may also have other rights which may vary from state to state Sears, Roebuck and Co, D817WA, Hoffman Estates ]L 60179 IMPORTANT: This unit is equipped with an internal combustion engine and must not be used on or near any unimproved forest-covered, brush-covered or grass-covered land unless the engine's exhaust system is equipped with a spark arrester meeting applicable local or state laws (if any). If a spark arrester is used, it must be maintained in effective working order by the operator. In the State of California the above is required by law (Section 4442 of the California Public Resources Code), Other states may have similar laws. Federal laws apply on federal lands. See an Authorized Service Center for a spark attester for the muffler° 712490 2 SAFETY Safe _ I Operation RULES Practices for Trimmer. It means: ARNING: "Attention! Look for this Become symbolAlert! to point Your Safety out important Is involved." safety precautions, Only use accessories manufacturer General Operation 1 Read. understand, and follow al! instructions on the machine and in the manual(s) Be thoroughly familiar with the controls and the proper use of the trimmer before starting 2 Familiarize yourself with all of the safety and operating decals on this equipment and on any of its attachments or accessories 3 Do not put Inands or feet near or under rotating parts 4 Only allow responsible individuals, who are familiar with the instructions, to operate the trimmer 5 Inspect the area where the trimmer is to be used Your equipment can propel small objects at high speed causing personal injury or property damage Stay away from breakable objects, such as house windows. auto glass, greenhouses, etc 6 Keep the area of operation clear of al! persons particularly small children, and pets 7 Wear appropriate clothing such as a !ongsleeved shirt or jacket Also wear long trousers or slacks Do not wear shorts 8 Do not wear loose clothing which could get caught in this equipment 9 Always wear safety goggles or safety glasses with side shields when operating trimmer to protect your eyes from foreign oblects which can be thrown from the unit 10 Always wear work gloves and sturdy footwear Leather work shoes or short boots work well for most people These will protect the operators ankles and shins from small sticks, splinters, and other debris and improve traction 11 It is advisable to wear protective headgea_ to prevent the possibility of being struck by small flying particles, or being struck by low hanging branches, twigs, or other objects which may be unnoticed by the operator 12 Do not operate tlne trimmer without proper guards or other safety protective devices in place t3 Use this equipment for its intended purpose only 14 See manufacturer's instructions for proper operation and installation of accessories 712490 approved by the 15 Operate only in daylight or good artificial light 16 De not operate the trimmer while under the influence of alcohol, drugs or other medication which can cause drowsiness or affect your ability to operate this machine safely 17 Never operate trimmer in wet grass Always be sure of y_ Jr footing; keep s firm hold on the handle and walk; never run 18 Before each use, inspect the throttle control lever and cable Make sure that the cable is free and that the lever is not dam_ 19 20 21 22 23 24 25 aged Also check the cable linkage running to the carburetor for kinks, loose fittings, and obstructions Verify that the control bail is working properly Stop the rotating trimmer head when crossing gravel drives, walks, or roads Wait for the cutting lines to stop rotating Watch for traffic when operating near, or when crossing roads Stop the engine (motor) whenever you leave the equipment, before cleaning repairing or inspecting the unit. be sure the trimmer head and all moving parts have stopped Let the engine cool, disconnect the spark plug wire and move it away from the spark plug If the equipment should start to vibrate abnormally, stop the engine (motor), disconnect the spark plug wire and prevent it from touching the spark plug Check immediately for the cause Vibration is generally a warning of trouble After striking a foreign object, stop the engine (motor) Remove the wire from the spark plug Inspect the trimmer for damage If damaged, repair before starting and operating the trimmer Never leave the trimmer unattended when the engine is running Remove the wire from the spark plug Regularly inspect the trimmer Make sure parts are not bent, damaged or loose IL Slope Operation Slopes are a major factor related to slip and fall accidents which can result in severe injury All SAFETY slopes require extra caution on a slope, do not trim it RULES If you feel uneasy De trim across the face of slopes; never up and down Do net trim excessively steep slopes (maximum 15 degrees) or areas where the ground is very rough See the "Guide" in the back of this manual to check e slope Exercise extreme caution when changing direction on slopes Reduced .3 Never make adjustments or repairs with the engine (motor) running Disconnect the spark plug wire, and keep the wire away from the plug to prevent accidental starting (remove the ignition key if equipped with an electric start) Always wear eye protection when you make adjustments or repairs Check the trimmer head end engine mounting bolts at frequent intervals for proper tightness Keep all nuts and bolts tight and kee F equipment in good condition Chec_ mounting hardware on trimmer head ever_ time you change trimmer line and prior tc each use 4 footing 5 IlL Children Tragic accidents can occur if the operator is not alert to the presence of children Children ere often attracted to the trimmer and the trimming activity Never assume that children will remain where you last sew them 1 Keep children out of the trimming area and under the watchful care of a responsible adult 2 Be alert and turn trimmer oft if children enter the area 3 Before and while moving backwards, look behind and down for small children 4 Never allow children to operate the trimmer 5 6 6 7 8 Use extra care when approaching blind corners, shrubs, trees, or other objects that may obscure vision On electric start models, remove the ignition key to prevent accidental starting when the trimmer is net is use 9 1(3 11 IV, Service 12 Use extra care in handling gasoline and ether fuels They are flammable and vapors are explosive a Use only an approved b Never remove gas cap or add fuelwith the engine running AlLow engine to cool before refueling Do net smoke 71249O Never store the machine or fuel con- Never run an engine indoors or inside a closed area. steep slopes De not trim on wet grass could cause slipping, d 2. Tell grass Do not trim near drep-offs, ditches, o_ embankments The operator could lose footing or balance Do not trim excessively Never refuel the machine indoors tainer inside where there is an open flame, such as a water heater, De remove objects such as rocks, tree limbs, etc Do watch for holes, ruts, or bumps can hide obstacles c 13 container 14 15 4 Never tamper with safety devices Checl their proper operation regularly When servicing or repairing the trimmer, dc not tip the machine over or up unless spe cificaUy instructed to do so in this Manual Service and repair procedures can be done with the trimmer in an upright position Some procedures will be easier if the ma chine is lifted on a raised platform or work ing surface To reduce fire hazard, keep trimmer free e grass, leaves, or other debris build-up Clean up oil or fuel spillage Al!ow trimme to cool before storing Stop and inspect the equipment if ym strike an object Repair, if necessary, be fore restarting Always disconnect spark plug wire bafor_ cleaning, repairing, or adjusting Do not change the engine governor settinc or over-speed the engine Clean and replace safety and instructior decals as necessary To guard against engine over-heating, a ways have engine debris filter meunte and ctean Inspect trimmer before storage. Use only original equipment or authorize replacement parts SAFETY INTERNATIONAL RULES SYMBOLS IMPORTANT: Many of the following symbols are located on your unit or on literature supplied with the producL Before you operate the unit, learn and understand the purpose for each symbol. Control And Operating Symbols Slow Fuel Fast Oil Safety Warning Symbols WARNING Thrown Objects. Keep Bystanders Away. IMPORTANT Read Owner's Manual Before Operating This Machine. WARNING Rotating Parts. Stop Engine. Disconnect Spark Wire Before Making Adjustments. Wear WARNING Eye Protection WARNING Never Operate Up Or Down Slopes. Operate Across Slopes. 712490 5 WARNING STOP ASSEMBLY ASSEMBLY CONTENTS 1 OF PARTS BAG Owner's Manual - Parts Bag Not shown actual 1 - T-Handle Wrench size) _,._ 1 - Safety Glasses 1 - 20 oz, Bottle Oil TO REMOVE TRIMMER glasses shields while asWARNING:or eye Always wear safety sembling the trimmer. 2 Sets - Trimmer Lines (0.155 inch diameter) THE FROM CARTON 1 Remove the bottle of oil and parts bag from carton TOOLS REQUIRED 2 Remove the packing around the unit 1 - Knife to cut carton 3 Cut down all four corners of the carton and 1 - T-Handle Wrench material positioned lay the side panels flat Figure 1 shows the trimmer completely assembled and positioned in the carton for shipment References to the right or left hand side of the trimmer are from the viewpoint of the operators position behind the unit 4 Pull the trimmer out of the carton and off the base pad 5 Remove packing matenal from around the trimmer head 6 Remove frame protective plastic from front of Figure 1 71249O 6 ASSEMBLY HOW 1 2 3 TO RAISE THE HANDLE Hold the handle with one hand and loosen both handle adjustment teeth are disengaged Do not remove the handle adjustment knobs Raise the handle to the knobs until the ratchet See Figure 2 operating position Stand in the operator's poMtion behind the trimmer Put the handle in a comfortable position Make sure both sides of the handle are level NOTE: Make sure the cables are not caught between the upper and lower handle,, Tighten the handle adjustment knobs Make sure the handle pivots are locked in place NOTE: The handle Handle Adjustment Knob height is adjustable, See "How To Adjust The Height Of The Handle" in the Adjustment section. 5 To attach the recoil start handle to the rope guide, twist the rope through the rope guide mounted on the right side of the handle HOW TO INSTALL THE ENGINE DEBRIS ! 2 Figure 2 SHIELD Remove the engine debris shield from the protective packaging Attach the engine debris shield to the two mounting brackets with the wingnuts as shown in Figure 3 Make sure the wingnuts are tight 71249O 7 ASSEMBLY ENGINE PREPARATION Fill Crankcase With Oil The tdmmer was shipped with a container of SAE30 motor oil This oil must be added to the Fuel Cap engine before operating 1 Remove the oil fill cap/dipstick shown in Figure 4 Fill the crankcase to the FULL line on oil fill cap/dipstick DO NOT OVERFILL. 2 install the oil fill cap/dipstick and tighten securely Oil Fill Cap/ Fill Fuel Tank With Gasoline For the correct procedure and grade gasoline, see "How To Fill With Gasoline" the Operation section ,I Figure 4 of in CHECKLIST As you learn how to use the trimmer, pay extra attention to the following important items: For the best performance and satisfaction from this quality product, please review the following checklist before you operate the trimmet: _-" All assembly completed l-" Check carton Make sure no loose parts remain in the carton 712490 instructions v",_" v,'_t have been _--"_" 8 Engine oil is at correct level Fuel tank is filled with fresh, clean, regular unleaded gasoline Become familiar and understand the function of all controls Before your start the engine, operate all controls OPERATDON KNOW YOUR TRIMMER READ THE OWNER'S MANUAL AND ALL SAFETY RULES BEFORE YOU OPERATE the trim- mer To familiarize yourself with the location of the controls, compare the illustrations with your trimrner Save this manual for future reference, Control Bail Trimmer Head Drive Lever J ._pper Handle Throttle Control Lever Fuel Cap Recoil Starter Handle Engine Debris Shield Handle Adjustment Knob Dipstick Trimmer Head Trimmer Une Shield Edge Guard Figure 5 Trimmer Head Drive Lever the rotation of the trimmer head - Engages Recoil Starter Handle - The engine equipped with an easy pull recoil starter Control Bail - Release to stop the rotation of the trimmer head Throttle Control Lever - Controls Shield Edge by automatically length the speed or stops the engine Primer Button - Injects fuel directly into the carburetor manifold for faster starts See Guard is - Protects the shield cutting the line to the correct Engine Debris gine from debris Shield - Protects the enCan be easily removed to service the engine Figure 8 EYE PROTECTION WARNING: Debris thrown the trimmer call result HOW TO STOP THE TRIMMER HEAD from in foreign Releasethe control bail It willreturn toits open position and disengage the trimmer head eyes, which can cause severe objects being thrown into the eye damage, Always wear safety glasses or eye shields when operating the trimmer. Always wear safety glasses If you wear eye glasses put a Wide Vision Safety Mask over your eye gIasses 712490 HOW TO STOP THE ENGINE 1 9 Move the throttle control lever pletely back to the STOP position com- OPERATION HOW TO USE THE TRIMMER HEAD DRIVE LEVER Control Bail To engage the trimmer head, hold the con° trol bail against the handle Move the trimmer head drive lever forward to engage the trimmer head See Figure 6 The faster the engine runs, the faster the trimmer head will rotate Once the trimmer head is rotating, the trimmer forward to trim _Handle push Trimmer Head Drive Lever Figure 6 HOW TO USE THE THROTTLE CONTROL During normal use, set the throttle control lever in the FAST position to run the engine at full speed 2 Pull the throttle control lever back to decrease engine speed Push the throttle control lever forward to increase engine speed Throttle Control Lever To stop the engine, pull the throttle control lever completely back to the STOP position Figure 7 HOW TO USE THE PRIMER BUTTON ! Push the primer button five times See Figure 8 for location Wait approximately two seconds between each push NOTE: Do not use the primer button to restart a warm engine after a short shutdown. 712490 tO OPERATION BEFORE Oi! STARTING THE ENGINE How To Fill With Gasoline Recommendation Only use high quality detergent oil rated with API service classification SG Select the oil's SAE viscosity grade according to your expected operating temperature: Cotder <_,_ <<....... _ _. _. 5w30 ,_ ,_,_> NOTICE; ENGINES WHICH ARE CERTIFIED TO COMPLY WITH CALIFORNIA AND US EPA EMISSION REGULATIONS FOR ULGE ENGINES: Are certified to operate on regular unleaded gasoline Include the following emission control system(s): EM, TWC (if so equipped) include any user adjustable features-therefore no other adjustments are needed Warmer ..->> WARNING: SAE30 NOTE: Although multi-viscosity oils (5W30, 10W30, etc.) improve starting in cold weather, these multi-viscosity oils will result in increased oil consumption when used above 32°E To avoid possible engine damage from running low on oil, frequently check your engine oil level Check The Before each follows: Engine use the engine Put the trimmer on a level surface 2 Remove the oil fill cap/dipstick shown in Figure 9 Make sure the oil reaches the FULL mark on the oil fill cap/dipstick 4 dling or storing gasoline. Keep away from an open flame or an electrical spark. Do not smoke while filling the fuel tank. Store gasoline In a clean, approved container in a cool well ventilated place; never In the house. oil as 1 3 WARNING: Gasoline is flammable. Use caution when han- Oil check Fill the fuel tank with a fresh, clean, unleaded regular, unleaded premium, or reformulated automotive gasoline only DO NOT use leaded gasoline Be sure that the gasoline container is clean and free from dust or other foreign particles Never use gasoline that is stale from long periods of storage Reinstall fuel cap If necessary, add oil until the FULL mark on the oil fill cap/dipstick is reached DO NOT OVERFILL See "Oil Recommendation" for the grade and type of oil to use Fuel Cap CAUTION: Alcohol blended fuels (called gasohol or using methanol) can attract moisture which leads to separation and formation of acids during storage. Acidic gas can damage the fuel system of an engine while in storage, To avoid engine problems, empty the fuel system before storage of 30 days or longer. Drain the fuel tank. Start the engine and let it run until the fuel lines and carburetor are empty. Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur. See "Storage Instructions" for additional information. Oil Fill Cap/Dipstick Debris Screen Figure 9 712490 Never fill the gas tank while the engine is running or hot. Allow the engine to cool before adding gasoline, Immediately wipe off any spilled gasoline before you start the engine. 11 OPERATION HOW TO START THE NOTE: If engine fails to start after three pulls, push the primer button two times and again pull the recoil starter handle. ENGINE NOTE: DO NOT BE ALARMED, your engine will smoke the first time it is started. It is burning offthe protective coating that is on the internal engine parts. WARNING: Never run the en= gine indoors or in a poorly ventilated area_ Engine exhaust contains carbon monoxide, an odorless and deadly gas° Keep hands, feet, hair and loose clothing away from the trimmer and any moving parts on the engine. Avoid the muffler and surrounding areas= Temperatures may exceed 150°E mer unattended whil the engine WARNING: trim= is runngin, Never Wait forleave the the trimmer lines to stop rotation, _ Before each use remove debris from the debris screen shown in Figure 9 Debris can cause the engine to overheat Wipe the debris screen with a cloth or paper towel 2 Move the throttle control lever forward to the START or FAST position 3 To start a cold engine, push the primer button five times Wait two seconds between each push of the primer button NOTE: Do not use the primer warm engine. to start a 4 Firmly hold the recoil starter handle with your right hand See Figure 10 5 Pull back sharply on the recoil starter handle DO NOT allow the starter rope to snap back Let the starter rope slowly rewind as you hold the recoil starter handle TRIMMER _ Recoil Starter Handle Figure lO TIPS take longer to complete the job If the trimmet lines are worn to less than half their WARNING: Debris such as sticks, gravel or rocks, can be thrown with sufficient force to cause personal injury or property damage. original length, change to a new trimmer line "See How To Change The Trimmer Une" in the Service And Adjustment section Set the throttle control in the FAST position If the weeds or grass are tall and thick, operate the trimmer at a slower walking speed Do not trim on excessively steep slopes If a slope is difficult to stand on, do net trim Do not trim on slopes when the ground is slippery or wet Trim across the face of e slope, not up and down Frequently clean the underside of the trimmer to remove any grass build up See the Maintenance section for details For best results and longer lasting line, use the ends of the line to do the cutting This is easily done by moving slowly through very thick or heavy weeds Trimmer head contact to concrete, asphalt and harder services may create premature wear to the height guide (See Figure 18) If the trimmer lines become too short, it will 712490 12 MAINTENANCE CUSTOMER RESPONSIBILITIES SERVICE RECORDS Fill in datesas you complete regular service. ;,.., Before Each Use Every 5 Hours Every 25 Hours Every 100 Hours SERVICE As Noted DATES . .,,,,..,, V I Check Engine Oil Level Check trimmer Lines Check Trimmer Head Engagement Engine/Machine Cleaning ,/ 2 Check Nuts and Bolts V Check Spark Plug ,/ Change Engine Oil _ _ i _ "_ • _ I_ 3 Service Air Filter Lubricate Jackshaft i V Assembly ,/ Lubricate Wheel Bearings Note I - When old line is half the original length, replace with new line Note 2 - Clean daily if used in extremely dusty or dirty conditions Note 3 - Change more often if used in extremely PRODUCT GENERAL SPECIFICATIONS Trimmer Line Diameter 0 155 inch Trimmer Line Length 21 5 inches Horse Power 65 Displacement 12 0 cu in Gasoline 1 5 quarts Capacity Oil Capacity 20 oz Spark Plug Champion RJ-t9LM Spark Plug Gap 712490 dusty or dirty conditions RECOMMENDATIONS The warranty on this trimmer does not cover items that have been subjected to operator abuse or negligence To receive full value from the warranty, the operator must maintain the trimmer as instructed in this manual Some adjustments must be made periodically to properly maintain your trimmer All adjustments in the Service and Adjustments section of this manual must be checked at least once each season 0 030 inch 13 MAaNTENANCE LUBRICATION How To Lubricate The Jackshaft Assembly A grease fitting is provided to lubricate the jacksheft assembly Use a grease gun with automotive type grease to lubricate the jackshaff assembly as shown in Figure 11 How To Change Engine Figure 11 Oil Change the engine oil when the engine is warm For the proper oil capacity, see "Product Specifications" 1 Disconnect spark plug wire from the spark plug 2 Remove the oil drain plug as shown in Figure 12 3 Drain all the engine oil into a flat pan 4 Install the oil drain plug oil drain plug is tight 5 Remove the dipstick 6 Fill the engine crankcase DO NOT OVERFILL For proper oil capacity, see "Product Specifications" HOW TO REPLACE Replace the air in dusty or dirty clean or oil the new air filter as THE 7 Connect the spark plug wire to the spark plug 5 Put the new air filter into the cover Make sure the AIR FILTER filter once a year or more often conditions DO NOT attempt to air filter Remove and install e follows: Push the cover firmly against the flange, Turn the cover counterclockwise until CAUTION: Never run the engine without the air filter installed. An air filter clogged with dust can result in loss of engine power and can cause excessive wear or damage to the engine. If the air filter is clogged, replace immediately. Connect the spark plug wire to the spark plug 1 Disconnect spark plug 2 Turn the cover clockwise as shown in Figure 13 Remove the cover and the air filter, 3 tight Be sure the retainers around the flange the spark plug wire from the Air Filter Discard the old air filter, 4 Clean the cover and the flange 71249o 14 are locked MABNTENANCE HOW TO SERVICE THE ENGINE AND Engine Debris Shield SPARK PLUG 1 To access the engine or the spark plug, remove the engine debris shield as shown in Figure 14 2 After engine service is completed, the engine debris shield replace / Wingnut Figure 14 SPARK PLUG Check the spark plug every 25 hours Replace the spark plug if the electrodes are pitted or burned or if the porcelain is cracked Tighten the spark foot-pounds Make sure the spark plug is clean Clean the spark plug by carefully scraping the electredes Ida net sand blast er use a wire brush) 2 Check the spark plug gap with a feeler gauge See 'Product Specifications" for the correct spark plug gap and replace r ment spark plug 3 Before installing the spark plug, ceat the threads lightty with oi_ for easy removal 712490 15 plug to a torque of 15 SERVICE SERVICE AND ADJUSTMENT AND ADJUSTMENT Make sure that all moving parts have stopped. Disconnect the wire from the WARNING: Before you inspect, clean or service the trimmer, stop the engine. spark plug. HOW TO REPLACE THE TRIMMER LINE For the best performance, use a heavy gauge (0 155" diameter) trimmer line Cut the length of the trimmer line to 21 5 inches Use the length guide, located on the shield, to make sure the trimmer line is the correct length See length of the inch This is mer head is Figure 16 Do not allow lines to vary more than important to make sure balanced and does not Trimmer Une Shield the one the trimvibrate IMPORTANT: To extend the life of the trimmer line, keep the trimmer line moist. If not kept moist, the nylon trimmer line will become dry and brittle. Keep extra trimmer line in a can of water. The line will then stay flexible and easy to change. A flexible line will also last much longer. HOW TO CHANGE TRIMMER Figure 16 LINES When the trimmer line becomes worn to half the original !ength, replace the trimmer line as fol!ows: Une Retainer Trimmer Une 1 Stop the engine Wait for all moving parts to stop 2 Remove worn trimmer line from line retainer 3 First, thread the ends of the new trimmer line through the outside loops 712490 Line Retainer 4 Next, taketheends of the line, cross over the line retainer, and thread the ends through the center hole 16 5 Then, check to make sure that the ends of the line are even SERVDCE AND ADJUSTMENT HOW TO ADJUST THE HEIGHT OF THE HANDLE Use the knobs, on each side of the handle, to adiust the height of the handle 1 Hold the handle with one hand and loosen both knobs until the ratchet teeth are disengaged Do net remove the knobs Figure 17 See 2 Move the handle up or down to the desired position, then align the ratchet teeth Make sure both sides of the handle are level 3 Tighten the knobs HOW TO SET THE HEIGHT OF CUT CAUTION: Before you set the height of cut: stop the engine. Wait for all moving parts to stop. Allow the engine to cool and disconnect the spark plug wire. Height Of Cut Positions Set Screw Trimmer Head The height of cut can be set from 1-1/2 inches to 3 inches Recommended cutting height for the average yard is 2" 1 Use the T-wrench. found in the parts bag, to loosen the set screw shown in Figure 18 2 Set the trimmer height 3 Tighten the sat screw. head at the desired Height Guide T-Wrench Figure 18 712490 17 SERVICE AND ADJUSTMENT HOW TO REPLACE THE DRIVE BELT To replace the drive belt, the trimmer head and shield must be removed as follows the drive belt, disconnect the wire WARNINGr Before you remove from the spark plug= Remove the two fasteners that hold the rear of the shield to the trimmer housing (See Figure 19). 2 Remove the four fasteners that hold the front of the shield and trimmer head to the trimmer housing. 3 Remove bracket 4. the "V" pulley from the idler Raise the front of the trimmer housing and remove the drive belto On some models, it is necessary to loosen the mounting bolt for the drive pulley to remove the drive belt (see F_gure 20) Do not bend the belt guides NOTE: Make sure you replace the drive belt only with a replacement belt from the factory. 5 To assemble the drive belt, reverse the above steps, Make sure all fasteners are tight Make sure the mounting bolt for the drive pulley is tight, 6 Check the routing of the drive belt. Make sure the drive belt is inside of all belt guides shown in Figure 20 iMPORTANT: Test the drive system. Start the engine and move the throttle control to the FAST position. Engage and disengage the trimmer head several times, When disengaged, make sure the trimmer head completely stops when resting on the ground. If the trimmer head continues to rotate, take the trimmer to the nearest Craftsman Service Center. 712490 18 SERVHCE AND ADJUSTMENT STORAGE WARNING: Do not remove gasoline while inside a building, near a fire, or while you smoke. Gasoline fumes can cause an explosion or a fire. during storage. Acidic gas can damage the fuel system of an engine while in storage. To prevent engine damage when the trimmer is in storage for 30 days or more, follow the steps below: Let the engine run until it is eut of gasoline When the trimmer is put in storage for thirty days or more. follow the steps below to make sure the trimmer is in good condition the following season Drain the oi! from the warm engine Fill the engine crankcase with new el! Remove the spark plug from the cylinder Pour one ounce of oil into the cylinder Slowly pull the recoil starter handle so that the ei] will protect the cylinder Install a new spark plug in the cylinder Trimmer Completely clean the trimmer Put the trimmer in a building that has good ventilation Clean dirt and debris from the cylinder cooling fins and the engine housing NOTE: A yearly checkup or tune-up at a Craftsman authorized service center will make sure that the trimmer will provide maximum performance for the next sea- If you do net want to remove gasoline, add a fuel stabilizer, such as Craftsman fuel stabilizer No 33500, to any gasoline left in the tank Craftsman fue! stalibizer will SOn_ minimize the formation of gum deposits and acids If the tank is almost empty, mix Craftsman fuel stabilizer with fresh gasoline in a separate container and add the mixture to the tank Always follow the instructions on the stabilizer container Run Engine IMPORTANT: It is important to prevent gum deposits from forming in fuel system parts such as the carburetor, fuel filter, fuel hose, and tank during storage. Also, using alcohol-blended fuels (called gasohol, ethanol or methanol) can attract moisture which leads to separation and formation of acids 712490 the engine at least ten minutes after stabilizer is added to allow the mixture to reach the carburetor 19 TROUBLE SHOOTING CHART TROUBLE CAUSE CORRECTION Engine Spark plug wire disconnected Connect spark plug wire Engine not primed Prime engine Defective or incorrectly gapped spark plug inspect or replace spark plug Fuel tank empty Add fuel does not start Dirty carburetor Engine 712490 runs poorly. or fuel line Clean carburetor or fuel line Dirty air filter Replace air fitter Carburetor For carburetor adjustment. take the unit to a Craftsman Service Center out of adjustment Engine flooded Wait several minutes before starting Throttle control lever in incorrect position Move throttle lever to FAST or START position Stale gasoline Drain old gasoline and add fresh gasoline Defective throttle control lever or wire Inspect lever and wire Replace if damaged or defective. Bad spark plug Replace spark plug Dirty air filter Replace air filter Carburetor Adjust carburetor Take the unit to a Craftsman Service Center out of adjustment Stale gasoline Drain old gasoline gasoline Engine cooling system clogged Clean engine screen and cooling fins 20 Add fresh TROUBLE Engine overheats. SHOOTaNG CHART Engine cooling system clogged Clean debris screen and engine cooling fins Carburetor Adjust carburetor Take the unit to a Craftsman Service Center out of adjustment Oil level is low Engine will not stop running. Poor trimming performance. i Defective throttle control lever or wire Inspect and replace damaged parts l Throttle not adjusted 3roperly Move throttle to the full OFF position Trimmer line length is too short Engine not set at FAST speed Trimmer vibrates. Trimmer head does not retain line Correct line length is 21 5 inches When less than 1/2 this length, replace the line Move engine throttle Fever to i FAST position Set screw for trimmer head is loose Tighten set screw with T-handle wrench Trimmer line lengths are substantially different Adjust trimmer line to approximately equal lengths Loose nuts or bolts Check all bolts and nuts, including engine bolts Broken trimmer head, [ Replace broken part Trimmer linenat prapedy attached , Fol_owinstructions on decal or in the Service section of [ the owner's manual Broken line retainer Trimmer line netcorrect size 712490 Add oil 21 Replace trimmer head assembly Use Craftsman 0 155 inch I diameter trimmer line ",,4 h_ _0 O Is- SLOPE GUBDE •....... D..._'..GR_._ BIGHT AND HOLD THIS GUIDE LEVEL WITH A VERTICAL .: • ......S ....... TREE, A CORNER OF A STRUCTURE, A POWER LINE I _:. "I"............. POLE, OR A FENCE. I _ l ' "................ . ....".........OLD,,^ • - "..... "_.L.!.N_ .... Operate a trimmer across the face of slopes, never up or down slopes. 10 DEGREES 15 DEGREES Use this guide and do not trim on a slope greater than A 10 degree slope is a hill that increases A 15 degree slope is a hill that increases Use extreme manual slopes. care at all times for safety in trimming Use extra care when 15 degrees. in height at approximately in height at approximately and avoid sudden turns 1.7 feet in 10 feet.. 2.5 feet in 10 feet.. or maneuvers. on slopes. Operate a trimmer operating on or near slopes Follow other across the face of slopes, and obstructions. instructions in this never up or down
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