Yard Machines 41AD-280G000 Trimmer User Manual
Contents
1. Existing Inner Reel 1 Hold the outer spool with one hand and unscrew the Bump Knob counterclockwise Inspect the bolt inside the Bump Knob to make sure it moves freely Replace the Bump Knob if damaged See Figure 18 2 Remove the inner reel from the outer spool See Figure 19 3 Remove spring from the inner reel See Figure 19 Use a clean cloth to clean the the inner reel spring shaft and inner surface of the outer spool 5 Check the indexing teeth on the inner reel and outer spool for wear If necessary remove burrs or replace the reel and spool See Figure 20 NOTE SplitLine can only be used with the inner reel with the slotted holes Single line can be used on either type of inner reel Use figure 21 to identify the inner reel you have NOTE Always use the correct line length when installing trimming line on the unit The line may not release properly if the line is too long Bump Knob Figure 18 Outer Spool Spring Inner Reel Figure 19 Indexing Teeth Figure 20 Slotted Holes For Use with Single Line ONLY For Use with SplitLine or Single Line Figure 21 Single Line Installation Go To Step 8 for SplitLine Installation 6 Take approximately 25 feet 7 6 m of new trim ming line loop it into two equal lengths Insert each end of the line through one of the two holes in the inner reel Pull the line through the inner reel so that the loop is as small as possible See Fig2. a confined area 4 Place the choke lever in the FULL choke position A H See Figure 8 5 With the unit on the ground squeeze the throttle control and pull starter rope briskly See Figure 9 Continue pulling until the engine sounds as though it wants to run normally 2 to 5 pulls NOTE Squeeze the throttle control until the engine has started and warmed up 6 Place the choke lever in the PARTIAL choke position B N See Figure 8 NOTE The unit will not run in the FULL choke position A 7 Pull starter rope briskly 1 to 3 times to start the engine See Figure 9 8 If the engine does not start repeat steps 4 through 7 A ae Start On I oy Run Partial Position B Position C cam Full Choke Position A lw Foal Figure 8 Primer Bulb NOTE f the engine floods while trying to start place the choke lever in the RUN position C Squeeze the throttle control Pull the starter rope briskly The engine should start within three 3 to eight 8 pulls 9 Squeeze the throttle control to warm up engine for 5 to 10 seconds Place the choke lever in the RUN position C t See Figure 8 NOTE Choking is unnecessary when starting a warm engine Put the On Off Stop Control in the START I position and start in PARTIAL Choke position B N See Figures 7 and 8 To Stop Engine 1 Release your hand from the throttle control See Figure 9 Allow the engine
3. all fuel has been drained from the carburetor 3 Allow the engine to cool Remove the spark plug and put 1 oz 30 ml of high quality motor oil into the cylinder Pull the starter rope slowly to distribute the oil Reinstall the spark plug NOTE Remove the spark plug and drain all of the oil from the cylinder before attempting to start the unit after storage 16 4 Thoroughly clean the unit and inspect for any loose or damaged parts Repair or replace damaged parts and tighten loose screws nuts or bolts The unit is ready for storage e Never store the unit with fuel in the tank where fumes may reach an open flame or spark e Allow the engine to cool before storing e Store the unit in a locked up area to prevent unauthorized use or damage e Store the unit in a dry well ventilated area Do not store next to corrosive materials such a fertilizer e Store the unit out of the reach of children SECTION 8 TROUBLE SHOOTING GUIDE Trouble Possible Cause s Corrective Action ENGINE WILL NOT START ENGINE WILL NOT IDLE On Off Stop Control in the STOP position Empty fuel tank Primer bulb wasn t pressed enough Engine flooded Old or improperly mixed fuel Fouled spark plug Air Filter is Plugged Old or improperly mixed fuel Improper carburetor adjustment Turn the On Off Stop Control to START Fill fuel tank Press primer bulb fully and slowly 5 7 times Use starting procedure with c
4. especially children and pets at least 50 feet 15 m from the operating area o N x E 7 O A ub oJ AMN WEAR YOUR SAFETY GLASSES py j S FORESIGHT IS BETTER THAN NO SIGHT e PRIMER BULB Push primer bulb fully and slowly 5 to 7 times e UNLEADED FUEL Always use clean fresh unleaded fuel e OIL Refer to operator s manual for the proper type of oil e THROWN OBJECTS CAN CAUSE SEVERE INJURY Do not operate unit without proper attachments and guards in place e ON OFF STOP CONTROL ON START RUN e ON OFF STOP CONTROL OFF OR STOP e HOT SURFACE WARNING Do not touch a hot muffler cylinder or gearbox You may get burned These parts get extremely hot from operation When turned off they remain hot for a short time e SHARP BLADE WARNING Sharp blade on cutting attachment shield To prevent serious injury do not touch line cutting blade e DO NOT USE BLADES WARNING To prevent serious injury do not attach or operate the unit with any type of blade e CHOKE CONTROL A FULL choke position B e PARTIAL choke position C e RUN position WARNING The operation of any power tool can cause foreign objects to be thrown into your eyes This can lead to severe eye damage Before commencing power tool operation always wear safety glasses or goggles that are marked as meeting ANSI Z87 1 standards and a full face shield when needed SECTION 2 ASSEMBLING YOUR TRIMMER Ins
5. 14 Hold the inner reel in place and install the Bump Knob by turning clockwise Tighten securely Installing a Prewound Reel 1 Hold the outer spool with one hand and unscrew the Bump Knob counterclockwise Inspect the bolt inside the Bump Knob to make sure it moves freely Replace the Bump Knob if damaged See Figure 18 2 Remove the old inner reel from the outer spool See Figure 19 3 Remove the spring from the old inner reel See Figure 19 4 Place the spring in the new inner reel NOTE The spring must be assembled on the inner reel before reassembling the cutting attachment 5 Insert the ends of the line through the eyelets in the outer spool See Figure 26 6 Place the new inner reel inside the outer spool Push the inner reel and outer spool together While holding the inner reel and outer spool grasp the ends and pull firmly to release the line from the holding slots in the spool 7 Hold the inner reel in place and install the Bump Knob by turning clockwise Tighten securely Replacement Parts Refer to PARTS LIST in Section 9 Holding Slots Figure 25 Figure 26 SECTION 7 OFF SEASON STORAGE If the unit will be stored for an extended time 1 Drain all fuel from the fuel tank into a container Do not use fuel that has been stored for more than 60 days Dispose of the old fuel in accordance to local regulations 2 Start the engine and allow it to run until it stalls This ensures that
6. 6 in the United States or 1 800 668 1238 in Canada MTD Southwest Inc 550 N 54th Street Chandler AZ 85226 U S A
7. ALLON 4 0 FL OZ 3 8 LITERS 120 ml MIXING RATIO 32 1 Figure 6 WARNING Gasoline is extremely flammable Ignited Vapors may explode 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 at a distance from the area A WARNING Remove fuel cap slowly to avoid injury from fuel spray Never operate the unit without the fuel cap securely in place WARNING Add fuel in a clean well ventilated area outdoors Wipe up any spilled fuel immediately Avoid creating a source of ignition for spilt fuel Do not start the engine until fuel vapors dissipate A A NOTE Dispose of the old fuel oil mix in accordance to Federal State and Local regulations Starting Engine WARNING Avoid accidental starting Be A in the starting position when pulling the starter rope See Figure 9 The operator and unit must be in a stable position while starting to avoid serious personal injury 1 Mix gas with oil Fill fuel tank with fuel oil mixture See Oil and Gas Mixing Instructions 2 Put the On Off Stop Control in the START I position See Figure 7 3 Fully press and release primer bulb slowly 5 to 7 times Fuel should be visible in the bulb If fuel is not visible press three 3 more times or until it is See Figure 8 WARNING Operate this unit only in a well ventilated area outdoors Carbon monoxide exhaust fumes can be lethal in
8. Head Knob Assembly 21 MANUFACTURER S LIMITED WARRANTY FOR YARD MACHINES A The limited warranty set forth below is given by MTD SOUTHWEST INC MTD with respect with new merchandise purchased and used in the United States its possessions and territories MTD 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 repair or replace free of charge any part found to be defective in material or workmanship This limited warranty shall only apply if this product has been operated and maintained in accordance with the Operator s Manual furnished with the product and has not been subject to misuse abuse commercial use neglect accident improper maintenance alteration vandalism theft fire water or damage because of other peril or natural disaster Damage resulting from the installation or use of any accessory or attachment not approved by MTD for use with the product s covered by this manual will void your warranty as to any resulting dam age This warranty is limited to ninety 90 days from the date of original retail purchase for any MTD product that is used for rental or commercial purposes or any other income producing purpose HOW TO OBTAIN SERVICE Warranty service is available WITH PROOF OF PURCHASE THROUGH YOUR LOCAL AUTHORIZED SERVICE DEALER To locate the dealer in your area p
9. LLING CUSTOMER SUPPORT If you have difficulty assembling this product or have any questions regarding the controls operation or maintenance of this unit please call the Customer Support Department Call 1 800 345 8746 or in Canada 1 800 668 1238 to reach a Customer Support representative Please have your units model number and serial number ready when you call See previous section to locate this information You will be asked to enter the serial number in order to process your call SECTION 1 IMPORTANT SAFE OPERATION PRACTICES A A READ ALL INSTRUCTIONS BEFORE OPERATING This Symbol Points Out Important Safety Information Which If Not Followed Could Endanger The Personal Safety And or Property Of Yourself And Others Read And Follow All Instructions In This Manual Before Attempting To Operate Your Trimmer Failure To Comply With These Instructions May Result In Personal Injury When You See This Symbol Heed Its Warning DANGER Your unit was built to be operated according to the rules for safe operation in this manual As with any type of power equipment carelessness or error on the part of the operator can result in serious personal injury This trimmer is capable of amputating hands and feet Failure to observe the following instructions could result in serious injury or death Read the instructions carefully Be familiar with the controls and proper use of the unit Do not operate this unit when tired il
10. Mounting Pad 180091 Gasket Diaphragm Repair Kit 23 153520 Shroud Assembly Zama 24 181861 Shroud Screw 180530 Piston Ring 25 182064 Shroud Extension and Stand 182792 Short Block Assembly 26 181867 Flywheel Assembly includes 10 14 16 24 41 46 49 27 610303 Square Nut Drive 3 181501 Starter Housing Screw Set 28 181597 Recoil Pulley Assembly i 610309 Crankcase Seal 29 613102 Recoil Spring 30 611061 Rope Guide Not Shown 19 MODEL 41AD 280G000 20 MODEL 41AD 280G000 Optional Accessories Ref Part No Part Description PT Part No Part Description No No 1 182093 Throttle Housing and Trigger 610375 Replacement Line 0 80 Diameter Assembly includes 2 amp 3 153577 Reel and Line Assembly 2 610314 Throttle Trigger Spring 180897 Bump Head Assembly 3 180975 Throttle Trigger includes 15 19 4 182068 Throttle Cable Assembly 682075 Shoulder Strap Assembly 5 145819 D Handle Assembly 182780 Arnold 2 Cycle Oil 6 181587 D Handle Hardware 7 181893 Drive Shaft Housing Assembly not shown 8 153597 Lower Clamp Assembly 9 682064 Flexible Drive Shaft 10 180531 Shield Mounting Screw 11 181784 Bushing Housing Assembly with Spool Shaft 12 145569 Anti Rotation Screw 13 683274 Shield and Blade Assembly includes 14 14 682061 Blade Assembly 15 153619 Outer Spool and Eyelet Assembly includes 16 16 610660 Retainer 17 610317 Spring 18 610318 Inner Reel 19 153066 Bump
11. YARD MACHINES i by MTD Operator s Manual Curved Shaft 2 Cycle Trimmer Model 41AD 280G000 For A Growing World mTD IMPORTANT Read safety rules and instructions carefully before operating equipment Warning This unit is equipped with an internal combustion engine and should 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 should 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 A spark arrestor is installed on this unit A replacement spark arrestor for the muffler is available through your nearest engine authorized service dealer or contact the service department 550 N 54th Street Chandler Arizona 85226 2434 MTD SOUTHWEST INC 550 N 54TH STREET CHANDLER ARIZONA 85226 2434 PRINTED IN U S A FORM NO 770 10506 PART NO 10316 rev A 12 00 TABLE OF CONTENTS Content Page Important Safe Operation Practices 0 ccceeeeeeeeeeneeee eee ee eee eeeeteeeceaaaeeeeeeeeeeeeneas 3 5 Assembling Your Wimmer s ec sceceesevecens cee eececdeeecstediree eer ASAE ENAS EErEE REESE 6 KNOW YOUN TINIE Meee sane E E E E E E 7 Operating
12. Your TIMME cccccecsccceeeeeseeeeeeseseeeeeeeeeeeeeeeeeseeeeeeseseeeeeeeneseneeeenenaes 8 MakingtAcjUstiments err arai or A E A E ARR 12 Maintaining Your TIMME se cceeeccccceeeeeteceeeeeeecceveca sed ASAE EaR EENAA SAER EERSTENS 13 O90430 SLOLAG ES orrara rana A E E A OO ereeee 16 i c0 0 0 nolo no eee E E E E er eeerer eerie reer eerreree 17 Pans MSti epee cccccevevesecyecueuceccceyevtsce ce cs evynvevetyecueysaecvevevvece ves ae vesetcseveuveceeys 18 WAIT AUINLY es eceoeeveeccoreeenccettect seeecdeeeeveee E T dt aereesedeaeeeiea eee 22 FINDING MODEL NUMBER This Operator s Manual is an important part of your new trimmer It will help you assemble prepare and maintain the unit for best performance Please read and understand what it says Before you start assembling your new equipment please locate the model plate on the unit and copy the information from it to the space provided below The information on the model plate is very important if you need help from our Customer Support Department or an authorized dealer You can locate the model number by looking on the bottom side of the shaft housing next to the shaft grip A sample model plate is explained below For future reference please copy the model number and the serial number of the equipment in the space below Model Parent Part Number Copy the modal parant Serial Number part number here Copy the serial number here MADE IN U S A CA
13. e Drain the tank and run the engine dry before storing the unit Using Fuel Additives The use of fuel additive such as STA BIL Gas Stabilizer or an equivalent will inhibit corrosion and minimize the formation of gum deposits Using a fuel additive can keep fuel from forming harmful deposits in the carburetor for up to six 6 months Add 0 8 oz 23 ml of fuel additive per gallon of fuel according to the instructions on the container NEVER add fuel additives directly to the unit s fuel tank A Thoroughly mix the proper ratio of 2 cycle engine oil with unleaded gasoline in a separate fuel can Use a 32 1 fuel oil ratio Do not mix them directly in the engine fuel tank See Figure 6 for specific gas and oil mixing ratios CAUTION For proper engine operation and maximum reliability pay strict attention to the oil and fuel mixing instructions on the 2 cycle oil container Using improperly mixed fuel can severely damage the engine NOTE Two gallons 7 6 liters of unleaded gasoline mixed with one 8 oz 236 mi bottle of Arnold 2 Cycle Oil makes a 32 1 fuel oil ratio OR one gallon 3 8 liters of unleaded gasoline mixed with one 4 oz 120 ml bottle of Arnold 2 Cycle Oil makes a 32 1 fuel oil ratio m UNLEADED GAS ARNOLD 2 CYCLE OIL 2 US GALLONS 8 0 FL OZ 7 6 LITERS 236 ml OR 1 US G
14. e area while adding fuel or operating the unit WHILE OPERATING Never start or run the unit inside a closed room or building Breathing exhaust fumes can kill Operate this unit only in a well ventilated area outdoors Wear safety glasses or goggles that are marked as meeting ANSI 287 1 standards and ear hear ing protection when operating this unit Wear a face or dust mask if the operation is dusty Wear heavy long pants boots gloves and a long sleeve shirt 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 lines extended and the proper line installed Do not extend the trim ming line beyond the length of the shield This unit does not have a clutch The cutting e Stop and switch the engine to off for mainte attachment continues to rotate when the engine nance repair or for changing the cutting attach is idling To prevent injury have the unit adjusted ment or other attachments by an authorized service technician e Use only replacement parts and accessories Adjust the D Handle to your size to provide the approved by the manufacturer for this unit These best grip are available from your authorized service dealer Be sure the cutting attachment is not in contact Use of any non approved parts or accessories with anything before starting the unit c
15. er completely assembled Air Filter Maintenance 1 Place the choke control in the PARTIAL choke position B NOTE The choke control must be in the PARTIAL choke position B to remove the air filter muffler cover See Figure 14 2 Remove the four 4 screws securing the air filter muffler cover See Figure 14 Use a flat blade or T20 Torx bit screwdriver 3 Pull the cover from the engine Do not force Air Filter Remove the air filter from behind the air filter muffler cover See Figure 15 4 Wash the filter in detergent and water Rinse the filter thoroughly Squeeze out excess water Allow it to dry completely 5 Apply enough clean SAE 30 oil to lightly coat the filter See Figure 16 Figure 15 6 Squeeze the filter to spread and remove excess oil See Figure 16 7 Replace the air filter inside the air filter muffler cover See Figure 15 NOTE Operating the unit without the air filter and air filter muffler cover assembly will VOID the warranty Figure 16 13 8 Place the air filter muffler cover over the back of the carburetor and muffler NOTE The choke control must be in the PARTIAL choke position B to install the air filter muffler cover See Figure 14 9 Insert the four 4 screws into the holes in the air filter muffler cover and tighten See Figure 14 Use a flat blade or T20 Torx bit screwdriver Do not over tighten Do not force Replacing The Spa
16. ey remain hot for a short time the reach of children Do not operate the engine faster than the speed e Never douse or squirt the unit with water or any needed to cut trim or edge Do not run the other liquid Keep handles dry clean and free engine at high speed when not cutting from debris Clean after each use see Cleaning Always stop the engine when cutting is delayed and Storage instructions or when walking from one cutting location to e Keep these instructions Refer to them often and another use them to instruct other users If you loan If you strike or become entangled witha foreign Someone this unit also loan them these instruc object stop the engine immediately and check tions for damage Do not operate before repairing dam ee operate the unit with loose or dam SAVE TH ESE INSTRUCTIONS gt eo gt WARNING YOUR RESPONSIBILITY Restrict the use of this power machine to persons who read understand and follow the warnings and instructions in this manual and on the machine e WARNING READ OPERATOR S MANUAL Read the Operator s Manual s and follow all warnings and safety instructions Failure to do so can result in serious injury to the operator and or bystanders e WEAR EYE AND HEARING PROTECTION Thrown objects and loud noise can cause severe eye injury and hearing loss Wear eye protection meeting ANSI Z87 1 standards and ear protection when operating this unit e KEEP BYSTANDERS AWAY Keep all bystanders
17. hoke control in the RUN position Drain fuel tank Add fresh fuel mixture Replace or clean the spark plug Replace or clean the air filter Drain fuel tank Add fresh fuel mixture Refer to MAKING ADJUSTMENTS Section 5 ENGINE WILL NOT ACCELERATE Old or improperly mixed fuel Improper carburetor adjustment Drain fuel tank Add fresh fuel mixture Refer to MAKING ADJUSTMENTS Section 5 ENGINE LACKS POWER OR STALLS WHEN UNDER LOAD Old or improperly mixed fuel Improper carburetor adjustment Drain fuel tank Add fresh fuel mixture Refer to MAKING ADJUSTMENTS Section 5 CUTTING ATTACHMENT WILL NOT ADVANCE LINE Cutting attachment bound with grass Cutting attachment out of line Inner reel bound up Cutting head dirty Line welded Line twisted when refilled Not enough line is exposed Stop the engine and clean cutting attachment Refill with new line Replace the inner reel Clean inner reel and outer spool Disassemble remove the welded sec tion and rewind the line Disassemble and rewind the line Push the Bump Knob and pull out line until 4 inches 102 mm of line is out side of the cutting attachment 17 PARTS LIST FOR MODEL 41AD 280G000 SECTION 9 18 MODEL 41AD 280G000 Ref Ref No Part No Part Description No Part No Part Description 1 182059 Air Cleaner Muffler Cover Assembly 31 181889 Pulley Retainer Assembly includes 2 am
18. ion Cutting shorter lengths produces the best results e Trim only when grass and weeds are dry e The life of your cutting line is dependent upon e Following the previous trimming techniques e What vegetation is being cut e Where it s being cut For example the line will wear faster when trimming against a foundation wall as opposed to trimming around a tree 11 Decorative Trimming Decorative trimming is accomplished by removing all vegetation around trees posts fences etc Rotate the whole unit so that the cutting attachment is at a 30 angle to the ground See Figure 12 J Figure 12 SECTION 5 MAKING ADJUSTMENTS Carburetor Adjustments WARNING If any adjustments are made to the engine while the engine is running e g carburetor keep clear of all moving parts Be careful of heated surfaces and muffler The idle speed adjuster of the engine is adjustable through the air filter muffler cover See Figure 13 NOTE Careless adjustments can seriously damage your unit An authorized service dealer should make carburetor adjustments Check Fuel Mixture Old and or improperly mixed fuel is usually the reason for the unit not running properly Drain and refill the tank with fresh properly mixed fuel prior to making any adjustments Refer to OPERATING YOUR TRIM MER in Section 4 Clean Air Filter The condition of the air filter is important to the operation of the unit A dirty air filter will
19. l or under the influence of alcohol drugs or medication Children and teens under the age of 15 must not use the unit except for teens guided by an adult Inspect the unit before use Replace damaged parts Check for fuel leaks Make sure all fasten ers are in place and secure Replace cutting attachment parts that are cracked chipped or damaged in any way Make sure the cutting attachment is properly installed and securely fas tened Be sure the cutting attachment shield is properly attached and positioned as recom mended Failure to so can result in personal injury to the operator and bystanders as well as dam age to the unit Use only 0 080 inch 2 03 mm diameter genuine manufacturer s replacement line Never use metal reinforced line wire chain or rope etc These can break off and become a dangerous projectile Be aware of the risk of injury to the head hands and feet Clear the area to be cut before each use Remove all objects such as rocks broken glass nails wire or string which can be thrown or become entangled in the cutting attachment Clear the area of children bystanders and pets At a mini mum keep all children bystanders and pets out side a 50 feet 15 m radius there still may be a risk to bystanders from thrown objects Bystanders should wear eye protection If you are approached stop the engine and cutting attach ment immediately Squeeze the throttle control and check that it returns auto
20. lease check for a listing in the Yellow Pages or contact the Customer Service Department of MTD SOUTH WEST INC by calling 1 800 345 8746 or writing to 550 N 54th Street Chandler Arizona 85226 or if in Canada call 1 800 668 1238 No product returned directly to the facto ry will be accepted unless prior written permission has been extended by the Customer Service Department of MTD SOUTHWEST INC This limited warranty does not provide coverage in the following cases A Tune ups Spark Plugs Carburetor Adjustments Filters B Wear items Bump Knobs Outer Spools Cutting Line Inner Reels Starter Pulley Starter Ropes Drive Belts C MTD does not extend any warranty for products sold or exported outside of the United States of America its possessions and territories except those sold through MTD s authorized channels of export distri bution MTD reserves the right to change or improve the design of any MTD Product without assuming any obligation to modify any product previously manufactured No implied warranty including any implied warranty of merchantability or fitness for a particular purpose applies after the applicable period of express written warranty above as to the parts as identified No other express warranty or guaranty whether written or oral except as mentioned above given by any person or entity including a dealer or retailer with respect to any product shall bind MTD During the period of the Warran
21. length if excess line is released For best results tap the Bump Head on bare ground or hard soil If line release is attempted in tall grass the engine may stall Always keep the trimming line fully extended Line release becomes more diffi cult as the cutting line becomes shorter NOTE Do not rest the Bump Head on the ground while the unit is running A Some line breakage will occur from CAUTION Do not remove or alter the line cutting blade assembly Excessive line length will make the unit overheat This may lead to serious personal injury or damage to the unit e Entanglement with foreign matter e Normal line fatigue e Attempting to cut thick stalky weeds e Forcing the line into objects such as walls or fence posts Tips for Best Trimming Results e Keep the cutting attachment parallel to the ground e Do not force the cutting attachment Allow the tip of the line to do the cutting especially along walls Cutting with more than the tip will reduce cutting efficiency and may overload the engine e Cut grass over 8 inches 200 mm by working from top to bottom in small increments to avoid premature line wear or engine drag e Cut from left to right whenever possible Cutting to the right improves the unit s cutting efficiency Clippings are thrown away from the operator e Slowly move the trimmer into and out of the cut ting area at the desired height Move either ina forward backward or side to side mot
22. matically to the idle position Make all adjustments or repairs before using unit This unit was not designed to be used as a brushcutter Do not attach or operate this unit with any type of brushcutting blade or brushcut ting attachment WARNING Engine Exhaust some of its constituents and certain vehicle components contain or emit chemicals known to State of California to cause cancer and birth defects or other reproductive harm SAFETY WARNINGS FOR GAS TRIMMERS WARNING Gasoline is highly flammable and its vapors can explode if ignited Take the following pre cautions Store fuel only in containers specifically designed and approved for the storage of such materials Always stop the engine and allow it to cool before filling the fuel tank Never remove the cap of the fuel tank or add fuel when the engine is hot Never operate the unit without the fuel cap securely in place Loosen the fuel tank cap slowly to relieve any pressure in the tank Add fuel in a clean well ventilated area outdoors where there are no sparks or flames Slowly remove the fuel cap only after stopping engine Do not smoke while fueling or mixing fuel Wipe up any spilled fuel from the unit immediately Avoid creating a source of ignition for spilled fuel Do not start the engine until fuel vapors dissipate Move the unit at least 30 feet 9 1 m from the fueling source and site before starting the engine Do not smoke keep sparks and open flames from th
23. ould lead to serious injury to the user or damage Use the unit only in daylight or good artificial light Avoid accidental starting Be in the starting posi tion whenever pulling the starter rope The opera to the unit and void your warranty e Keep unit clean of vegetation and other materials They may become lodged between the cutting attachment and shield tor and unit must be in a stable position while e To reduce fire hazard replace faulty muffler and starting See Starting Stopping Instructions spark arrestor keep the engine and muffler free Use the right tool Only use this tool for the pur pose intended from grass leaves excessive grease or carbon build up Do not overreach Always keep proper footing OTHER SAFETY WARNINGS and balance Always hold the unit with both hands when oper e Never store the unit with fuel in the tank inside a ating Keep a firm grip on both the front and rear building where fumes may reach an open flame or handle or grips spark Keep hands face and feet at a distance from all e Allow the engine to cool before storing or trans moving parts Do not touch or try to stop the cut porting Be sure to secure the unit while trans ting attachment when it is rotating porting Do not touch the engine gear housing or muffler e Store the unit in a dry area locked up or up high These parts get extremely hot from operation to prevent unauthorized use or damage out of When turned off th
24. p 42 32 182827 Switch Assembly includes 39 2 180350 Air Cleaner Filter 33 181079 Pull Handle 3 181345 Carburetor Mounting Screw 34 613103 Rope Assembly 35 182828 Starter Housing Assembly 4 180226 Wavey Washer includes 28 34 amp 39 5 182160 Choke Lever Assembly includes 6 36 181862 Housing Screw 6 182161 Choke Knob and Screw 37 181345 Cover Screw 7 182162 Choke Lever and Plate includes 5 38 153597 Upper Clamp Assembly 8 182062 Carburetor Assembly W Limiter 39 180036 Wire Lead Caps includes 9 amp 21 40 181937 Module Assembly 9 610675 Carburetor Gasket 41 610311 Spark Plug 10 j 181860 Carb Mount Screw 42 182066 Muffler Assembly includes 43 45 11 182616 Primer and Hose Assembly 43 182747 Spark Arrestor 12 182063 Carb Mount Assembly 44 182065 Exhaust Gasket includes 10 amp 15 a an oe ere 45 147575 Muffler Mounting Bolt Assembly 46 181622 Cylinder Assembly 14 181866 Power Shaft Assembly includes 48 amp 49 15 612115 Carburetor Mount Gasket 47 684449 Piston and Rod Assembly 16 181865 Crank Case Service Assembly 48 610674 Cylinder Gasket includes 10 14 amp 24 f UES 10 49 182505 Cylinder Bolt 17 612134 Rear Mounting Pad J 182067 Engine Gasket Kit 18 181152 Fuel Tank A bl inclu AN i931 y 180602 O E M Carburetor Repair Kit Walbro 19 180000 Fuel Cap A bl ae a a 180090 O E M Carburetor Repair Kit Zama 181069 Gasket Diaph Repair Kit 21 682039 Fuel Line Assembly Walbro Puen seen 22 145308 Front
25. restrict air flow and change the air fuel mixture This is often mistaken for an out of adjustment carburetor Check the condition of the air filter before adjusting the idle speed adjuster Refer to MAINTAINING YOUR TRIMMER in Section 6 Adjusting Idle Speed WARNING This unit will need to be A running during idle speed adjustment Wear protective clothing and observe all safety instructions to prevent serious personal injury If after checking the fuel mixture and cleaning the air filter the engine still will not idle adjust the idle speed screw as follows 1 Start the engine and let it run about 2 3 minutes at a high idle to warm up Refer to OPERATING YOUR TRIMMER in Section 4 2 Release the throttle control and let the engine idle If the engine stops insert a small phillips or flat blade screwdriver into the hole in the air fil ter muffler cover Turn the idle speed screw in clockwise 1 8 of a turn at a time as needed until the engine idles smoothly See Figure 13 12 3 If the unit appears to be idling too fast turn the idle speed adjuster counterclockwise 1 8 of a turn at a time as needed to reduce idle speed NOTE f a tachometer is available set idle speed to RPM specifications Checking the fuel mixture cleaning the air filter and adjusting the idle speed screw should solve most engine problems If not and e The engine will not idle e The engine hesitates or stalls on acceleration e There i
26. rk Plug Use a Champion RDJ7Y spark plug or equivalent The correct air gap is 0 020 inch 0 5 mm Remove the plug after every 50 hours of operation to check its condition 1 Stop the engine and allow it to cool Grasp the plug wire firmly and pull the cap from the spark plug 2 Clean dirt from around the spark plug Remove the spark plug from the cylinder head by turning a 5 8 in socket counterclockwise NOTE Replace cracked fouled or dirty spark plug 3 Set the air gap at 0 020 inch 0 5 mm using a feeler gauge See Figure 17 1 CAUTION Do not sand blast scrape or clean electrodes Grit in the engine could damage the cylinder 4 Install a correctly gapped spark plug in the cylin der head Tighten by turning the 5 8 inch socket clockwise until snug If using a torque wrench torque to 110 120 in elb 12 3 13 5 Nem Do not over tighten 0 020 inch 0 5 mm A Figure 17 14 Line Installation This section covers both SplitLine and standard single line installation Always use manufacturer s 0 080 inch 2 03 mm replacement line Line other than specified may make the engine overheat or fail A There are two methods to replace the trimming line WARNING Never use metal reinforced line wire chain or rope etc These can break off and become a dangerous pro jectile e Wind the inner reel with new line e Install a prewound inner reel Winding the
27. s a loss of engine power have the carburetor adjusted by an authorized service dealer A WARNING When the unit is turned off make sure the cutting attachment has stopped before the unit is set down to prevent serious personal injury Idle Speed Screw Figure 13 Engine Specifications ss sss ss Air Cooled 2 Cycle Laas aee ees 3 400 4 400 rpm ass aes sss 6 600 8 000 rpm en ore ee eOee Engine Type Displacement Idle Speed R P M Operating R P M Fuel Oil Mixture Ratio Unit Weight No fuel with cutting attachment cutting attachment shield and D handle 9 5 Ibs 4 31 kg SECTION 6 MAINTAINING YOUR TRIMMER Maintenance Schedule These required maintenance procedures should be performed at the frequency stated in the table They should also be included as part of any seasonal tune up FREQUENCY MAINTENANCE REQUIRED Before Starting Engine Fill fuel tank with correct oil and fuel mixture Every 10 Hours Clean and re oil air filter Every 50 Hours or Seasonal Check spark plug condition and gap WARNING To avoid serious personal Choke Control c injury always turn the unit off allow it to cool and disconnect the spark plug before you clean or perform any maintenance on it Partial Choke Position B Trouble Shooting Refer to the trouble shooting chart for more informa tion Screws 4 Screws Engine IMPORTANT Never run your engine without air clean
28. talling and Adjusting the D Handle Installing the Cutting Attachment Shield NOTE The bolt washer and wing nut need to be Use the following instructions if the cutting attach removed from the D handle before installing ment shield on your unit is not installed 1 Push the D handle down onto the shaft housing WARNING Never operate the trimmer so that the handle slants towards the shaft grip without the cutting attachment shield in The squared bolt hole in the handle is to the right A place to prevent serious personal injury See Figure 1 2 Insert the shoulder bolt into the squared hole in 1 Place the cutting attachment shield onto the shaft the handle Place the washer on the bolt and housing above the clamp assembly See Figure 3 screw the wing nut onto the bolt Do not tighten 2 Push the cutting attachment shield down to the until you make the handle adjustment top of the cutting attachment assembly and then 3 Rotate the D handle to place the grip above the rotate the cutting attachment shield until the top of the shaft housing Place it a minimum of 6 screw holes align and the guard fits into the inches 15 24 cm from the end of the shaft grip recessed pocket See Figure 3 4 While holding the unit in the operating position 3 Install the four 4 screws with a Phillips screw position the D handle to the location that provides driver Tighten securely See Figure 4 you the best grip See Figure 2 5 Tighten the wing nut until
29. the D handle is secure Shaft Housing 2 Cutting Shaft Grip D Handle Attachment Shaft Housing Shield Tighten Minimum 6 inches Wing Nut Clamp 7 x Cutting 15 24 cm Attachment Washer Figure 3 4 Screws P Figure 4 Figure 2 SECTION 3 KNOW YOUR TRIMMER Throttle Control Air Filter Muffler Cover Cutting Attachment START ON I On Off Stop Fuel Cap Control STOP OFF O Shaft Shield Housing Figure 5 Read this operator s manual and safety rules before operating your trimmer Compare illustrations in Figure 5 with your trimmer to familiarize yourself with the location of various controls and adjustments Save this manual for future reference Application Use this unit for cutting grass and light weeds Also for edging and decorative trimming around trees fences etc Throttle Control The throttle control trigger is located below shaft grip It controls the engine speed See Figure 5 On Off Stop Control The On Off Stop control switch is located on the left side mounting bracket It is used to turn the unit on and off The switch must be in the START position to start the unit See Figure 5 Choke Control The choke control is located above the air filter muffler cover It is used to enrich the fuel mixture when starting a cold engine See Figure 5 Primer Bulb The primer bulb is located to the left of the air filter muffler cover It is
30. to cool down by idling 2 Put the On Off Stop Control in the STOP O position See Figure 8 Throttle Control Figure 9 Using Your Trimmer WARNING Dress properly to reduce the risk of injury when operating this unit Do not wear loose clothing or jewelry Wear eye and ear hearing protection Wear heavy long pants boots and gloves Do not wear short pants sandals or go barefoot Before operating the unit stand in the operating position See Figure 10 Check for the following e The operator is wearing eye protection and prop er clothing e The right arm is slightly bent and the hand is holding the shaft grip e The left arm is straight and the hand is holding the D Handle e The unit is at waist level e The cutting attachment is parallel to the ground and easily contacts the vegetation to be cut with out the operator having to bend over Figure 10 Adjusting Trimming Line Length The Bump Head cutting attachment allows you to release trimming line without stopping the engine To release more line lightly tap the cutting attachment on the ground while operating the trimmer at high speed See Figure 11 NOTE Always keep the trimming line fully extended Line release becomes more difficult as cutting line becomes shorter Figure 11 Each time the head is bumped about 1 inch 25 4 mm of trimming line is released A blade in the cut ting attachment shield will cut the line to the proper
31. ty the exclusive remedy is repair or replace ment of the product as set forth above Some states do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you The provisions as set forth in this Warranty provide the sole and exclusive remedy arising from the sales MTD shall not be liable for incidental or consequential loss or damages including without limitation expens es incurred for substitute or replacement lawn care services for transportation or for related expenses or for rental expenses to temporarily replace a warrant ed product Some states do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you In no event shall recovery of any kind be greater than the amount of the purchase price of the product sold Alteration of the safety features of the product shall void this Warranty You assume the risk and liability for loss damage or injury to you and your property and or to others and their property arising out of the use or misuse or inability to use the product This limited warranty shall not extend to anyone other than the original purchaser original lessee or the person for whom it was purchased as a gift How State Law Relates to this Warranty This warranty gives you specific legal rights and you may also have other rights which vary from state to state To locate your nearest service dealer dial 1 800 345 874
32. ure 22 7 Wind the lines in tight even layers onto the reel Wind the line in the direction indicated on the inner reel Place your index finger between the two lines to stop the lines from overlapping Do not overlap the ends of the line See Figure 23 Proceed to step 11 SplitLine Installation 8 Take approximately 12 feet 3 65 m of new trim ming line Insert one end of the line through one of the two holes in the inner reel Pull the line through the inner reel until only about 4 inches is left out See Figure 24 9 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 See Figure 24 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 NOTE Failure to wind the line in the direction indi cated will cause the cutting attachment to operate incorrectly Figure 24 12 Insert the ends of the line into the two holding slots See Figure 25 13 Insert the ends of the line through the eyelets in the outer spool and place inner reel with spring inside the outer spool See Figure 26 Push the inner reel and outer spool together While holding the inner reel and outer spool grasp the ends and pull firmly to release the line from the holding slots in the spool NOTE The spring must be assembled on the inner reel before reassembling the cutting attachment
33. used to draw fuel into the carburetor when starting a cold engine or after refueling the unit See Figure 5 Shaft Grip and D Handle Used to grip the unit during operation See Figure 5 Cutting Attachment Shield Protects operator from thrown debris Contains line cut off blade to make sure the line is not extended beyond its proper length Cutting attachment shield must be installed at all times when using the cutting attachment See Figure 5 Cutting Attachment Consists of a reel housing reel spring Bump Knob and cutting line See Figure 5 SECTION 4 OPERATING YOUR TRIMMER Oil and Gas Mixing Instructions Old and or improperly mixed fuel are the main reasons for the unit not running properly Be sure to use fresh clean unleaded fuel Follow the instructions carefully for the proper fuel oil mixture Definition of Blended Fuels Today s fuels are often a blend of gasoline and oxygenates such as ethanol methanol or MTBE ether Alcohol blended fuel absorbs water As little as 1 water in the fuel can make fuel and oil sepa rate It forms acids when stored When using alcohol blended fuel use fresh fuel less than 60 days old Using Blended Fuels If you choose to use a blended fuel or its use is unavoidable follow recommended precautions e Always use fresh fuel mix per your operator s manual e Use the fuel additive STA BIL or an equivalent e Always agitate the fuel mix before fueling the unit
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