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Operatorâs Manual Leaf Blower Model 657 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 engineâs 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 arrester for the muffler is available through your nearest engine authorized service dealer or contact the service department , P.O . Box 368022 Cleveland , Ohio 44136 - 9722 . MTD LLC , P.O . BOX 361131 CLEVELAND , OHIO 44136 - 0019 PRINTED IN U.S.A . 769 - 00896 . fm FORM NO . ( 9 / 2003 )
TABLE OF CONTENTS Content Page Important Safe Operation Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Assembling Your Leaf Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Operating Leaf Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Maintaining Your Leaf Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 FINDING MODEL NUMBER This Operatorâs Manual is an important part of your new leaf blower . 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 equipment and copy the information from it in 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 . â¢ You can locate the model number by standing behind the unit and looking down at the rear of the leaf blower . 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 Number ) ( Serial Number ) Copy the model number here : Copy the serial number here : MTD LLC P . O . BOX 361131 CLEVELAND , OH 44136 330 - 220 - 468310 www.mtdproducts.com 800 - 800 - 73 ENGINE INFORMATION The engine manufacturer is responsible for all engine - related issues with regards to performance , power - rating , specifications , warranty and service . Please refer to the engine manufacturerâs Ownerâs / Operatorâs Manual packed separately with your unit for more information . CALLING CUSTOMER SUPPORT Please do NOT return the unit to the retailer from which it was purchased , without first contacting Customer Support . If you have difficulty assembling this product or have any questions regarding the controls , operation or maintenance of this unit , please call 1 - ( 330 ) 220 - 4MTD ( 4683 ) or 1 - ( 800 ) - 800 - 7310 to reach a Customer Support representative . Please have your unitâs 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 . For more details about your unit , visit our website at www.mtdproducts.com 2
SECTION 1 : IMPORTANT SAFE OPERATION PRACTICES WARNING : This symbol points out important safety instructions 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 this machine . Failure to comply with these instructions may result in personal injury . When you see this symbol - heed its warning . WARNING : Engine exhaust , some of its constituents , and certain vehicle components contain or emit chemicals known to State of California to cause cancer , birth defects or other reproductive harm . DANGER : This machine 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 injury . This machine is capable of amputating hands and feet and throwing objects . Failure to observe the following safety instructions could result in serious injury or death . 12 . If your machine should start making an unusual noise or General Practices vibration , immediately stop the engine , disconnect the 1 . Read this operatorâs manual carefully in its entirety spark plug wire and move the wire away from the spark before attempting to assemble this machine . Read , plug . Allow the machine to stop and take the following understand , and follow all instructions on the machine steps : and in the manual ( s ) before operation . Be completely a . Inspect for damage . familiar with the controls and the proper use of the b . Repair or replace any damaged parts . machine before operating it . Keep this manual in a safe c . Check for any loose parts and tighten to assure place for future and regular reference and for ordering continued safe operation . replacement parts . 13 . Muffler and engine become hot and can cause a burn . Do 2 . Your leaf blower is a powerful tool , not a plaything . not touch . Therefore , exercise extreme caution at all times . Your 14 . Do not allow leaves or other debris to build up on unit has been designed to perform one job ; to blow engineâs muffler . The debris could ignite and cause a fire . leaves . Do not use it for any other purpose . 15 . Do not operate engine if air cleaner or cover over 3 . Never allow children under 14 to operate the unit . carburetor air intake is removed , except for adjustment . Children 14 years and older should only operate under Removal of such parts could create a fire hazard . close parental supervision . Only responsible individuals 16 . Only use accessories approved for this machine by the who are familiar with these rules of safe operation should manufacturer . Read , understand , and follow all be allowed to use your unit . instructions provided with the approved accessory . 4 . Keep the area of operation clear of all persons , 17 . Only operate unit in good daylight . Do not operate unit at particularly small children and pets . Stop the engine night or in dark areas where your vision may be impaired . when they are in the vicinity of the unit . 18 . If situations occur which are not covered by this manual , 5 . Always wear safety glasses or safety goggles during use care and good judgment . Contact your dealer for operation and while performing an adjustment or repair , assistance . to protect eyes from debris or foreign objects that may be thrown from machine . Children 6 . Wear close fitting slacks and shirt . Shirt and slacks that Tragic accidents can occur if the operator is not alert to the cover the arms and legs are recommended . Do not wear presence of small children . Children are often attracted to the loose fitting clothes or jewelry and secure hair so it is blowing activity . Never assume that children will remain above shoulder length . They can be caught in moving where you last saw them . parts . 1 . Keep children out of the work area and under the 7 . Do not operate the unit while under the influence of watchful eye of a responsible adult other than the alcohol or drugs . operator . 8 . Never place your hands or any part of your body or 2 . Be alert and turn the unit off if a child enters the area . clothing near rotating parts . Keep clear of the discharge 3 . Never allow children under the age of 14 to operate the opening at all times . Never insert your hands , fingers , leaf blower . feet , or any other part of your body or clothing into the Service discharge or air intake openings as the rotating impeller inside the housing can cause serious injury . 1 . Use extreme care in handling gasoline and other fuels . 9 . Never operate unit without directional discharge chute They are extremely flammable and the vapors are and plastic impeller guard properly affixed to unit . These explosive . devices shield the operator from accidental contact with 2 . Store fuel and oil in approved containers , away from heat the rotating impeller . and open flame , and out of the reach of children . 10 . Keep all guards and safety devices in place and 3 . Check and add fuel before starting the engine . Never operating properly . remove gas cap or add fuel while the engine is running . 11 . Exercise caution when operating blower . Do not allow the Allow engine to cool at least two minutes before refueling . discharge to point in the direction of bystanders or pets . 3
4 . Replace gasoline cap securely and wipe off any spilled Disconnect the spark plug wire and keep wire away from gasoline before starting the engine as it may cause a fire spark plug to prevent accidental starting . Do not use or explosion . flammable solutions to clean air filter . 5 . Extinguish all cigarettes , cigars , pipes and other sources 12 . Keep all nuts , bolts , and screws tight to be sure the of ignition . equipment is in safe working condition . 6 . Never refuel unit indoors because flammable vapors will 13 . Never tamper with safety devices . Check their proper accumulate in the area . operation regularly . 7 . Never store the machine or fuel container inside where Do not alter or tamper with the engineâs governor setting . The there is an open flame or spark such as a gas hot water governor controls the maximum safe operating speed of the heater , clothes dryer or furnace . engine . Overspeeding the engine is dangerous and will cause 8 . Never run your machine in an enclosed area as the damage to the engine and to other moving parts of the exhaust from the engine contains carbon monoxide , machine which is an odorless , tasteless and deadly poisonous gas . Your Responsibility 9 . To reduce fire hazard , keep engine and muffler free of leaves , grass , and other debris build - up . Restrict the use of this power machine to persons who read , 10 . Clean up fuel and oil spillage . Allow unit to cool at least 5 understand and follow the warnings and instructions in this minutes before storing . manual and on the machine . Always follow directions on 11 . Before cleaning , repairing , or inspecting , make certain safety labels found on your equipment . the impeller and all moving parts have stopped . 4
SECTION 2 : ASSEMBLING YOUR LEAF BLOWER Unpacking from Carton Assembling Upper Handle â¢ Remove staples , break glue on top flaps , or cut â¢ Place the upper handle over the lower handle , tape at carton end and peel along top flap to open aligning the holes in the upper handle with the carton . middle holes in the lower handle . See Figure 2 . â¢ Remove loose parts if included with unit ( i.e . , operatorâs manual , etc . ) Upper Handle â¢ Cut along corners , lay carton down flat , and remove packing material . â¢ Roll or slide unit out of carton and check carton Handle Knob thoroughly for loose parts . Curved Head Loose Parts In Carton Lower Handle Bolt â¢ Identify the loose parts by comparing with the following list . 1 . Upper Handle 2 . Directional Discharge Saddle Washer 3 . Operatorâs Manual 4 . Hardware Pack ( see list and figure below ) : Figure 2 â¢ Secure with the curved head bolts , saddle washers , and handle knobs from group A of hardware pack Saddle Curved Head Handle Knob Attaching Directional Discharge Washer Bolt â¢ Slip end of directional discharge over chute opening and secure with the hex sems bolts . Hex Sems Bolt See Figure 3 . Figure 1 â¢ Identify the items of hardware pack in following groups : Hex Sems Bolt 1 . Curved Head Bolts ( 710 - 1174 ) 2 . Saddle Washers ( 736 - 0451 ) 3 . Handle Knobs ( 720 - 0241 ) 4 . Hex Sems Bolts ( 710 - 0259 ) Before Assembly â¢ Disconnect the spark plug wire and ground against the engine to prevent unintended starting . Directional Discharge NOTE : Reference to right or left side of the leaf blower is observed from the operating position . Figure 3 5
SECTION 3 : OPERATING YOUR LEAF BLOWER Two - Way Discharge WARNING : Read , understand , and follow all For your convenience , this blower can be adjusted to instructions and warnings on the machine and discharge toward the front of the unit or to its side . See in this manual before operating . Figure 4 . â¢ Push down on the handle and swing door toward Gas and Oil Fill - Up the front to discharge through the side . â¢ Service the engine with gasoline and oil as â¢ Push down on the handle and swing door to the instructed in the engine manual packed with your side to discharge through the front . leaf blower . Read instructions carefully . WARNING : Use extreme care when handling gasoline . Gasoline is extremely flammable and the vapors are explosive . Never Handle fuel machine indoors or while the engine is hot or running . Starting Engine â¢ Attach spark plug wire to spark plug . Make certain the metal cap on the end of the spark plug wire is Directional Discharge fastened securely over the metal tip on the spark plug . See engine operatorâs manual . â¢ Pull choke rod forward to CLOSED position . ( A Figure 4 warm engine may not require choking . ) â¢ Move throttle lever on engine away from the SLOW Adjusting Height of Chute position , about 1 / 3 way towards FAST position . The height adjustment crank is located on the right side â¢ Grasp starter handle and pull rope out slowly until of the leaf blower . See Figure 5 . engine reaches start of compression cycle ( rope â¢ Turn the height adjustment crank clockwise to raise will pull slightly harder at this point ) . Let the rope the discharge chute . rewind slowly . â¢ Turn the height adjustment crank counterclockwise â¢ Pull rope with a rapid , continuous , full arm stroke . to lower the chute . Keeping a firm grip on the starter handle , let the rope return to the starter slowly . Repeat until the engine starts . Engine Adjustment â¢ When engine starts , push choke rod rearward to Refer to the engine manual for engine adjustment OPEN position . This is only required if the choke instructions . was initially closed . Stopping Engine â¢ To stop engine , move throttle lever to SLOW position . â¢ Allow the engine to idle for a few seconds , then move the throttle lever to STOP position . â¢ Disconnect spark plug wire from spark plug and ground against the engine . Figure 5 6
SECTION 4 : MAINTAINING YOUR LEAF BLOWER recommended at the start of each leaf blowing WARNING : Before performing any season . Refer to the engine manual for details . â¢ Clean the engine regularly with a cloth or brush . maintenance or repairs on your equipment , Keep the cooling system ( blower housing area ) stop the engine , wait until the machine comes clean to permit proper air circulation which is to a complete stop , disconnect the spark plug essential to engine performance and life . Be certain wire and ground against the engine to prevent to remove all grass , dirt , and combustible debris unintended starting . from muffler area . Lubrication Wheels : Rear wheels are provided with light oil Storing Your Leaf Blower bearings . Lubricate with a few drops of SAE 30 oil on â¢ Clean the equipment thoroughly . each bearing once a season . â¢ Wipe equipment with an oiled rag to prevent rust . â¢ Refer to engine manual for engine storage Engine instructions . â¢ Store unit in a clean , dry area . Do not store next to Some general maintenance tips are given below . For corrosive materials such as fertilizer . more details and / or instructions , refer to the â¢ For more compact storage , store unit in the accompanying engine manual . shipping position with the upper handle folded â¢ Maintain engine oil as instructed in the engine toward engine . manual . â¢ Service air cleaner every 25 hours under normal WARNING : Never store the machine or fuel conditions . Poor engine performance and flooding container indoors where there is an open usually indicate that the air cleaner should be flame , spark , or pilot light such as on a water serviced . To service the air cleaner , refer to the heater , furnace , clothes dryer , or other gas engine manual . appliance . â¢ The spark plug should be cleaned and the gap reset once a season . Spark plug replacement is 7
SECTION 5 : TROUBLE - SHOOTING Problem Cause Remedy 1 . Connect wire to spark plug . Engine fails to start 1 . Spark plug wire disconnected . 2 . Fill tank with clean , fresh gasoline . 2 . Fuel tank empty or stale fuel . 3 . Move throttle lever to start position . 3 . Throttle control lever not in correct starting position . ( If equipped ) 4 . Clean fuel line . 4 . Blocked fuel line . 5 . Clean , adjust gap , or replace . 5 . Faulty spark plug . 6 . Wait a few minutes to restart , but do not prime . 6 . Engine flooded 1 . Connect and tighten spark plug wire . Engine runs erratic 1 . Spark plug wire loose . 2 . Clean fuel line ; fill tank with clean , fresh 2 . Blocked fuel line or stale fuel . gasoline 3 . Vent in gas cap plugged . 3 . Clear vent . 4 . Water or dirt in fuel system . 4 . Drain fuel tank . Refill with fresh fuel . 5 . Dirty air cleaner . 5 . Replace air cleaner . 6 . Carburetor out of adjustment . 6 . See authorized service dealer . Engine overheats 1 . Engine oil level low . 1 . Fill crankcase with proper oil . 2 . Dirty air cleaner . 2 . Replace air cleaner . 3 . Air flow restricted . 3 . Remove blower housing and clean . Idles poorly 1 . Spark plug faulty or gap too wide . 1 . Reset gap to . 030 â or replace spark plug . 2 . Carburetor improperly adjusted . 2 . See authorized service dealer . 3 . Dirty air cleaner . 3 . Replace air cleaner . 8
SECTION 6 : PARTS LIST FOR MODEL 24A - 657E129 Engine for reference only ; may not resemble actual part . Ref . Ref . Part No . Part Description Part No . Part Description No . No . 1 . 749 - 0784 Upper Handle 18 . 747 - 0542 Height Adjustment Crank 2 . 726 - 0100 Push Nut 3 / 8 19 . 736 - 0451 Saddle Washer . 32 ID x . 93 OD 3 . 720 - 0171 Crank Knob 20 . 736 - 0159 Flat Washer . 34 ID x . 87 OD 4 . 736 - 0117 Flat Washer . 385 ID x . 62 OD 21 . 710 - 0170 Hex Lock Bolt 5 / 16 - 24 x . 64 6 . 710 - 0805 Hex Bolt 5 / 16 - 18 x 1.50 23 . 736 - 0300 Flat Washer . 38 ID x . 57 OD 7 . 16453 Engine Mounting Frame Assy . 24 . 750 - 0528 Spacer . 382 ID x . 50 OD x . 180 8 . 736 - 0119 Lock Washer 5 / 16 ID 25 . 736 - 0169 Lock Washer 3 / 8 ID 9 . 712 - 0267 Hex Nut 5 / 16 - 18 26 . 712 - 0354 Hex Nut 3 / 8 - 8 10 . 736 - 0187 Flat Washer . 63 ID x 1.25 27 . 710 - 3008 Hex Bolt 5 / 16 - 18 x . 75 11 . 714 - 0115 Cotter Pin 28 . 711 - 0797 Ferrule 12 . 712 - 0206 Hex Nut 1 / 2 - 13 29 . 720 - 0241 Hand Knob 13 . 736 - 0921 Lock Washer 1 / 2 30 . 710 - 1174 Carriage Bolt 5 / 16 - 18 x 2.0 14 . 734 - 1036 Swivel Caster Wheel 5 â x 1.25 31 . 749 - 0785 Lower Handle 15 . 16273 Caster Arm Assembly 32 . 734 - 1035 Wheel Assembly 12 x 3 16 . 710 - 0726 Hex Washer Screw 5 / 16x . 75 33 . 738 - 0185 Rear Axle 17 . 14529 Caster Arm Bracket 41 . 736 - 0162 Flat Washer 9
Model 24A - 657E129 3 2 4 5 1 25 11 6 19 7 8 14 22 15 18 12 11 10 25 17 13 16 9 23 24 24 Ref . Part No . Part Description No . 1 . 14540B Engine Housing Brace Assembly 2 . 710 - 0607 Hex Self Tapping Screw 5 / 16 x . 5 3 . 710 - 1260A Hex Screw 5 / 16 - 18 x . 75 4 . 736 - 0170 Special L - Washer 5 / 16 â x . 88 OD 5 . 14541 Right Angle Bracket 6 . 710 - 0672 Hex Locking Bolt 5 / 16 - 24 x 1.25 7 . 710 - 0260 Carriage Bolt 5 / 16 - 18 x . 62 8 . 14479 Directional Discharge Assembly 9 . 714 - 0105 Square Key 10 . 711 - 04221 Impeller Hub Insert 11 . 736 - 0119 Lock Washer 5 / 16 12 . 712 - 0267 Hex Nut 5 / 16 - 18 13 . 731 - 0608 Blower Guard 14 . 711 - 0758 Hex Shoulder Nut . 50 â 15 . 14563A Nozzle Plate Assembly 16 . 710 - 0672 Hex Bolt 5 / 16 - 24 x 1.25 17 . 736 - 0217 Lock Washer 3 / 8 18 . 681 - 04015 Air Vane Plate Assembly 19 . 14496B Blower Housing Assembly 22 . 710 - 0259 Hex Sems Bolt 5 / 16 - 18 x . 62 23 . 736 - 0242 Bell Washer . 34 ID x . 87 OD 24 . 710 - 1273 Hex Bolt 3 / 8 - 24 x 2.75 25 . 750 - 3198 Spacer 10
YOUR NOTES Date Comments 11
MANUFACTURERâS LIMITED WARRANTY FOR : The limited warranty set forth below is given by MTD LLC with d . MTD LLC does not extend any warranty for products respect to new merchandise purchased and used in the sold or exported outside of the United States , its United States , its possessions and territories . possesions and territories , except those sold through MTD LLCâs authorized channels of export distribution . MTD LLC warrants this product against defects for a period of e . Parts that are not genuine MTD parts are not covered two ( 2 ) years commencing on the date of original purchase by this warranty . and will , at its option , repair or replace , free of charge , any f . Service completed by someone other than an part found to be defective in materials or workmanship . This authorized service dealer is not covered by this limited warranty shall only apply if this product has been warranty . operated and maintained in accordance with the Operatorâs g . Transportation charges and service calls are not Manual furnished with the product , and has not been subject covered . to misuse , abuse , commercial use , neglect , accident , improper maintenance , alteration , vandalism , theft , fire , No implied warranty , including any implied warranty of water , or damage because of other peril or natural disaster . merchantability of fitness for a particular purpose , Damage resulting from the installation or use of any applies after the applicable period of express written accessory or attachment not approved by MTD LLC for use warranty above as to the parts as identified . No other with the product ( s ) covered by this manual will void your express warranty , whether written or oral , except as warranty as to any resulting damage . mentioned above , given by any person or entity , including a dealer or retailer , with respect to any product , Normal wear parts or components thereof are subject to shall bind MTD LLC . During the period of the warranty , separate terms as follows : All normal wear parts or the exclusive remedy is repair or replacement of the component failures will be covered on the product for a period product as set forth above . of 90 days regardless of cause . After 90 days , but within the two year period , normal wear part failures will be covered The provisions as set forth in this warranty provide the ONLY IF caused by defects in materials or workmanship of sole and exclusive remedy arising from the sale . MTD OTHER component parts . Normal wear parts and LLC shall not be liable for incidental or consequential components include , but are not limited to : batteries , belts , loss or damage including , without limitation , expenses blades , blade adapters , grass bags , rider deck wheels , seats , incurred for substitute or replacement lawn care services snow thrower skid shoes , shave plates , auger spiral rubber , or for rental expenses to temporarily replace a warranted and tires . product . HOW TO OBTAIN SERVICE : Warranty service is available , Some states do not allow the exclusion or limitation of WITH PROOF OF PURCHASE , through your local authorized incidental or consequential damages , or limitations on how service dealer . To locate the dealer in your area , check your long an implied warranty lasts , so the above exclusions or Yellow Pages , or contact MTD LLC at P.O . Box 361131 , limitations may not apply to you . Cleveland , Ohio 44136 - 0019 , or call 1 - 800 - 800 - 7310 or 1 - In no event shall recovery of any kind be greater than the 330 - 220 - 4683 or log on to our Web site at amount of the purchase price of the product sold . Alteration www.mtdproducts.com . of safety features of the product shall void this warranty . This limited warranty does not provide coverage in the You assume the risk and liability for loss , damage , or injury to following cases : you and your property and / or to others and their property arising out of the misuse or inability to use the product . a . The engine or component parts thereof . These items carry a separate manufacturerâs warranty . Refer to This limited warranty shall not extend to anyone other than the applicable manufacturerâs warranty for terms and original purchaser or to the person for whom it was purchased conditions . as a gift . b . Log splitter pumps , valves , and cylinders have a sepa HOW STATE LAW RELATES TO THIS WARRANTY : This rate one year warranty . limited warranty gives you specific legal rights , and you may c . Routine maintenance items such as lubricants , filters , also have other rights which vary from state to state . blade sharpening , tune - ups , brake adjustments , clutch adjustments , deck adjustments , and normal deterioration of the exterior finish due to use or exposure . MTD LLC , P.O . BOX 361131 CLEVELAND , OHIO 44136 - 0019 ; Phone : 1 - 800 - 800 - 7310 , 1 - 330 - 220 - 4683