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O MANUAL PERATORâS LEAF BLOWERS Model Series 650 IMPORTANT : READ SAFETY RULES AND INSTRUCTIONS CAREFULLY This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest - Warning : 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 PRODUCTS INC . P.O . BOX 368022 CLEVELAND , OHIO 44136 - 9722 PRINTED IN U.S.A . FORM NO . 770 - 8585A
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 YOUR AIR SWEEPER . FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY . WHEN YOU SEE THIS SYMBOL - HEED ITS WARNING . WARNING : The Engine Exhaust from this product contains chemicals known to the State of California to cause cancer , birth defects or other reproductive harm . DANGER : Your air sweeper 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 unit is capable of amputating fingers and hands and throwing objects . 1 . GENERAL OPERATION â¢ Never operate unit without directional discharge â¢ Read this operatorâs manual carefully in its entirety chute and plastic impeller guard properly affixed to before attempting to assemble this machine . Read , unit . These devices shield the operator from understand , and follow all instructions on the accidental contact with the rotating impeller . machine and in the manual ( s ) before operation . Be completely familiar with the controls and the proper â¢ Keep all guards and safety devices in place and use of the machine before operating it . Keep this operating properly . manual in a safe place for future and regular â¢ Exercise caution when operating blower . Do not reference and for ordering replacement parts . allow the discharge to point in the direction of â¢ Your air sweeper is a powerful tool , not a plaything . bystanders or pets . Therefore , exercise extreme caution at all times . â¢ If your machine should start making an unusual Your unit has been designed to perform one job ; to noise or vibration , immediately stop the engine , blow leaves . Do not use it for any other purpose . disconnect the spark plug wire and move the wire â¢ Never allow children under 14 to operate the unit . away from the spark plug . Allow the machine to Children 14 years and older should only operate stop and take the following steps : under close parental supervision . Only responsible â¢ Inspect for damage . individuals who are familiar with these rules of safe operation should be allowed to use your unit . â¢ Repair or replace any damaged parts . â¢ Keep the area of operation clear of all persons , â¢ Check for any loose parts and tighten to assure particularly small children and pets . Stop the engine continued safe operation . when they are in the vicinity of the unit . â¢ Muffler and engine become hot and can cause a â¢ Always wear safety glasses or safety goggles burn . Do not touch . during operation and while performing an â¢ Do not allow leaves or other debris to build up on adjustment or repair , to protect eyes from debris or engineâs muffler . The debris could ignite and cause foreign objects that may be thrown from machine . a fire . â¢ Wear close fitting slacks and shirt . Shirt and slacks â¢ Do not operate engine if air cleaner or cover over that cover the arms and legs are recommended . Do carburetor air intake is removed , except for not wear loose fitting clothes or jewelry and secure adjustment . Removal of such parts could create a hair so it is above shoulder length . They can be fire hazard . caught in moving parts . â¢ Only use accessories approved for this machine by â¢ Do not operate the unit while under the influence of the manufacturer . Read , understand , and follow all alcohol or drugs . instructions provided with the approved accessory . â¢ Never place your hands or any part of your body or â¢ Only operate unit in good daylight . Do not operate clothing near rotating parts . Keep clear of the unit at night or in dark areas where your vision may discharge opening at all times . Never insert your be impaired . hands , fingers , feet , or any other part of your body â¢ If situations occur which are not covered by this or clothing into the discharge or air intake openings manual , use care and good judgment . Contact your as the rotating impeller inside the housing can dealer for assistance . cause serious injury . 2
â¢ Never refuel unit indoors because flammable 2 . CHILDREN vapors will accumulate in the area . Tragic accidents can occur if the operator is not alert to â¢ Never store the machine or fuel container inside the presence of small children . Children are often where there is an open flame or spark such as a attracted to the blowing activity . Never assume that gas hot water heater , clothes dryer or furnace . children will remain where you last saw them . â¢ Never run your machine in an enclosed area as â¢ Keep children out of the work area and under the the exhaust from the engine contains carbon watchful eye of a responsible adult other than the monoxide , which is an odorless , tasteless and operator . deadly poisonous gas . â¢ Be alert and turn the unit off if a child enters the â¢ To reduce fire hazard , keep engine and muffler area . free of leaves , grass , and other debris build - up . â¢ Never allow children under the age of 14 to â¢ Clean up fuel and oil spillage . Allow unit to cool at operate the air sweeper . least 5 minutes before storing . 3 . SERVICE â¢ Before cleaning , repairing , or inspecting , make certain the impeller and all moving parts have â¢ Use extreme care in handling gasoline and other stopped . Disconnect the spark plug wire and keep fuels . They are extremely flammable and the wire away from spark plug to prevent accidental vapors are explosive . starting . Do not use flammable solutions to clean â¢ Store fuel and oil in approved containers , away air filter . from heat and open flame , and out of the reach of â¢ Keep all nuts , bolts , and screws tight to be sure children . the equipment is in safe working condition . â¢ Check and add fuel before starting the engine . â¢ Never tamper with safety devices . Check their Never remove gas cap or add fuel while the engine proper operation regularly . is running . Allow engine to cool at least two minutes before refueling . â¢ Do not alter or tamper with the engineâs governor setting . The governor controls the maximum safe â¢ Replace gasoline cap securely and wipe off any operating speed of the engine . Overspeeding the spilled gasoline before starting the engine as it engine is dangerous and will cause damage to the may cause a fire or explosion . engine and to other moving parts of the machine . â¢ Extinguish all cigarettes , cigars , pipes and other sources of ignition . 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 . WARNING REVOLVING BLADES - KEEP HANDS AWAY FROM ALL SAFETY GLASSES OPENINGS . DO NOT REMOVE SHOULD BE BLOWER EXHAUST OR STAND WORN IN FRONT OF DISCHARGE 2542 AREA WHILE ENGINE IS RUNNING . S30003 Safety labels found on your unit . 3
SECTION 2 : FINDING YOUR MODEL NUMBER This Operatorâs Manual is an important part of your new leaf blower . It will help you assemble , prepare and maintain your leaf blower . Please read and understand what it says . Before you start to prepare your leaf blower for its first use , please locate the model plate and copy the information from it in this Operatorâs Manual . The information on the model plate is very important if you need help from your dealer or the MTD customer support department . â¢ Every leaf blower has a model plate . You can locate it by standing behind the unit in the operating position and looking down at the rear of the frame . â¢ The model plate will look like this . This is where your model number will be . XXX - X - XXX - X - XXX XXXXXXXXXXX This is where your serial number will be . Copy the model number here : MTD PRODUCTS INC Copy the serial number here : CLEVELAND , OHIO 44136 SECTION 3 : CALLING CUSTOMER SUPPORT If you are having difficulty assembling this product or if you have any question regarding the controls , operation or maintenance of this unit , please call the Customer Support Department . You can reach them by calling : 1 - 800 - 800 - 7310 Before you call , make sure that you have both your model and serial number ready . By having the model and serial number ready , you help the Customer Support Representative give you faster service . To find your units model and serial number , see SECTION 2 : FINDING YOUR MODEL NUMBER . SECTION 4 : UNPACKING SECTION 5 : LOOSE PARTS IN CARTON TO REMOVE UNIT FROM CARTON 1 . Remove staples , break glue on top flaps , or cut Upper tape at carton end and peel along top flap to Handle open carton . 2 . Remove loose parts included with unit ( i.e . , operatorâs manual , etc . ) 3 . Cut along dotted lines and lay carton down flat . Directional 4 . Remove packing material . Discharge 5 . Roll or slide unit out of carton . Check carton thoroughly for loose parts . Engine Oil 6 . Lay out the contents of hardware pack according to the illustration on the following page . TOOLS REQUIRED FOR ASSEMBLY ( 1 ) 1 / 2 " Open End or Box Wrench 4
SECTION 6 : CONTENTS OF SECTION 7 : ASSEMBLY HARDWARE PACK INSTRUCTIONS ATTACHING THE UPPER HANDLE IMPORTANT : This unit is shipped WITHOUT A GASOLINE or OIL . After assembly , service engine with gasoline and oil as instructed in the separate engine manual packed with your unit . NOTE : Reference to right or left hand side of the leaf blower is observed from behind the unit Curved in the operating position . Head Bolts ATTACHING THE UPPER HANDLE ( 710 - 1174 ) ( Hardware A ) Place the upper handle over the lower handle , lining up the holes in the upper handle with the middle holes in lower handle . Secure with curved head bolts , saddle washers and hand knobs . See Figure 1 . ATTACHING THE DIRECTIONAL Saddle DISCHARGE ( Hardware B ) Washers Slip end of directional discharge over chute ( 736 - 0451 ) opening . Secure in position with hex sems bolts . See Figure 2 . Hand Upper Handle Knobs ( 720 - 0241 ) Lower Handle Curved Head Bolt Saddle Hand Washer Knob ATTACHING THE DIRECTIONAL DISCHARGE B Figure 1 Hex Sems Bolts ( 710 - 0259 ) Hex Sems Bolt Directional Discharge Figure 2 5
SECTION 8 : OPERATION SECTION 9 : ADJUSTMENTS WARNING : Do not at any time make GAS AND OIL FILL - UP any adjustment to the unit without first Service the engine with gas and oil as instructed in stopping engine and disconnecting the separate engine manual packed with your leaf spark plug wire . blower . Read instructions carefully . TWO - WAY DISCHARGE WARNING : Never fill fuel tank The leaf blower can be adjusted to discharge toward the front of the unit or to the side . Simply indoors , with engine running or until push down on the handle and swing door toward the engine has been allowed to cool for the front to discharge out the side , or to the side to at least two minutes after running . discharge out the front . See Figure 3 . TO START ENGINE WARNING : Revolving blades â keep hands away from all openings . Handle 1 . Attach spark plug wire securely to spark plug . 2 . Move choke lever on engine to CHOKE position . ( A warm engine may not require choking . ) 3 . Move throttle control lever on engine to FAST Directional position . Discharge 4 . Grasp starter handle and pull rope out slowly Figure 3 until engine reaches start of compression cycle ( rope will pull slightly harder at this point ) . Let the rope rewind slowly . HEIGHT ADJUSTMENT 5 . Pull rope with a rapid , continuous , full arm The height adjustment crank is located on the right stroke . Keep a firm grip on starter handle . Let hand side of the leaf blower . See Figure 4 . Turn the rope rewind slowly . Do not let starter handle crank clockwise to raise the discharge chute . Turn snap back against starter . the crank counterclockwise to lower . 6 . Repeat instructions 4 and 5 until engine fires . When engine starts , move choke control gradually to RUN position . TO STOP ENGINE 1 . To stop engine , move throttle control lever to OFF position . 2 . Disconnect spark plug wire and ground to Height prevent accidental starting while equipment is Adjustment unattended . Crank Figure 4 6
CARBURETOR ADJUSTMENT SECTION 11 : OFF - SEASON WARNING : If any adjustments are STORAGE made to the engine while the engine is The following steps should be taken to prepare your running ( e.g . carburetor ) , keep clear of leaf blower for storage . all moving parts . Be careful of heated surfaces and muffler . 1 . Clean and lubricate the leaf blower thoroughly as described in the lubrication instructions . Minor carburetor adjustment may be required to compensate for differences in fuel , temperature , 2 . Refer to engine manual for correct engine altitude or load . storage instructions . NOTE : A dirty air cleaner will cause engine to run 3 . If storing in an unventilated or metal storage shed , coat metal parts with a light oil or silicone rough . Be certain air cleaner is clean and attached to prevent rust . to the carburetor before adjusting carburetor . Do not make unnecessary adjustments . Factory 4 . Store in a dry , clean area . Do not store next to settings are satisfactory for most applications and corrosive materials , such as fertilizer . conditions . If adjustment is needed , refer to the separate engine manual packed with your leaf blower . SECTION 10 : MAINTENANCE Always stop engine and WARNING : disconnect spark plug wire before cleaning , lubricating or performing any repairs or maintenance . LUBRICATION Wheels â Rear wheels are provided with light oil bearings . Place a few drops of SAE 30 oil on each bearing once a season . Directional Discharge â Lubricate the spring and the pivot point on the door mechanism at least once a season with light oil . ENGINE Refer to the separate engine manual for engine maintenance instructions . Maintain engine oil as instructed in the separate engine manual packed with your unit . Read and follow instructions carefully . Service air cleaner every 25 hours under normal conditions . Clean every few hours under extremely dusty conditions . Poor engine performance and flooding usually indicates that the air cleaner should be serviced . To service the air cleaner , refer to the separate engine manual packed with your unit . The spark plug should be cleaned and the gap reset once a season . Spark plug replacement is recommended at the start of each season ; check engine manual for correct plug type and gap specifications . Clean the engine regularly with a cloth or brush . Keep the cooling system ( blower housing area ) clean to permit proper air circulation which is essential to engine performance and life . Be certain to remove all dirt and combustible debris from muffler area . 7
SECTION 12 : TROUBLE SHOOTING GUIDE Trouble Possible Cause ( s ) Corrective Action Refer to the engine manual packed with your unit . Engine fails to start Dirty air cleaner . Fill tank with clean , fresh gasoline . Fuel will not last over thirty Fuel tank empty or stale fuel . days unless a fuel stabilizer is used . Connect wire to spark plug . Spark plug wire disconnected . Move switch to ON position . Choke not in ON position . Clean , adjust gap or replace . Faulty spark plug . Connect and tighten spark plug wire . Loss of power ; Spark plug wire loose . Move choke lever to OFF position . operation erratic Unit running on CHOKE . Clean fuel line ; ï¬ll tank with clean fresh gasoline . Fuel will not Blocked fuel line ( if so equipped ) last over thirty days unless a fuel stabilizer is used . or stale fuel . Disconnect fuel line at carburetor to drain fuel tank . Reï¬ll with Water or dirt in fuel system . fresh fuel . Always run engine at full throttle Low engine RPM . Refer to the engine manual packed with your unit . Carburetor out of adjustment . Refer to the engine manual packed with your unit . Dirty air cleaner . Engine overheats Carburetor not adjusted properly . Refer to the engine manual packed with your unit . Dirty air cleaner . Refer to the engine manual packed with your unit . Engine oil level low . Fill crankcase with proper oil . Too much vibration Loose parts or damaged crank - Stop engine immediately and disconnect spark plug wire . shaft . Tighten all bolts and nuts . Make all necessary repairs . If vibration continues , have unit serviced by an authorized service dealer . Stop engine immediately and disconnect spark plug wire . Unit does not Directional discharge clogged . Clean directional discharge . discharge Always run engine at full throttle . Low engine RPM . Stop engine immediately and disconnect spark plug wire . Foreign object lodged in air vane Remove lodged object . plate assembly . Note : For repairs beyond the minor adjustments above , contact your local authorized service dealer . 8
SECTION 13 : ILLUSTRATED PARTS Models 652 and 655 Ref . Ref . No . Part No . Description No . Part No . Description 1 14539 Engine Housing Brace Assây . 14 711 - 0758 Hex Shoulder Nut . 50 " I.D . 2 710 - 0607 Hex Self - Tap Scr . 5 / 16 " x . 5 " 15 14563A Nozzle Plate Assây . 3 710 - 0118 Hex Bolt 5 / 16 - 18 x . 75 " Lg . 16 710 - 1254 Hex Bolt 3 / 8 - 24 x 1.25 " 4 736 - 0119 L - Wash . 5 / 16 " I.D . 17 736 - 0217 L - Wash . 3 / 8 " I.D . â H.D . 5 14541 Right Angle Bracket 18 681 - 0075 Air Vane Plate Assây . 6 710 - 0627 Hex Locking Bolt 5 / 16 - 24 x . 75 " 19 14496A Blower Housing Assây . â Comp . 7 710 - 0260 Carriage Bolt 5 / 16 - 18 x . 62 " 22 710 - 0259 Hex Sems Bolt 5 / 16 - 18 x . 62 " Lg . 8 14479 Directional Discharge Assây . 23 736 - 0242 Bell - Wash . . 34 " I.D . x . 87 " O.D . 11 736 - 0119 L - Wash . 5 / 16 " I.D . 24 720 - 0170 3 - Arm Thumb Scr . 5 / 16 - 18 x . 75 " Lg . 12 712 - 0267 Hex Nut 5 / 16 - 18 Thd . ( Gr . 5 ) 25 736 - 0247 Flat Washer 13 731 - 0608 Blower Guard 9
Models 652 and 655 Ref . Ref . No . Part No . Description No . Part No . Description 1 749 - 0784 Upper Handle 23 736 - 0300 Fl - Wash . . 38 " I.D . x . 57 " 2 726 - 0100 Push Nut 3 / 8 " Rod 24 750 - 0528 Spacer . 382 " I.D . x . 50 " x . 180 " Lg . 3 720 - 0171 Crank Knob 25 736 - 0169 L - Wash . 3 / 8 " I.D . 4 736 - 0117 Fl - Wash . . 385 " I.D . x . 62 " 26 712 - 0354 Hex Nut 3 / 8 - 8 Thd . 6 710 - 0442 Hex Bolt 5 / 16 - 18 x 1.50 " Lg . 27 710 - 0118 Hex Bolt 5 / 16 - 18 x . 75 " Lg . 7 16453 Engine Mounting Frame Assây . 28 711 - 0797 Ferrule 8 736 - 0119 L - Wash . 5 / 16 " I.D . 29 720 - 0241 Hand Knob 9 712 - 0267 Hex Nut 5 / 16 - 18 Thd . 30 710 - 1174 Carriage Bolt 5 / 16 - 18 x 2.0 " 10 736 - 0187 Fl - Wash . . 63 " I.D . x 1.25 " 31 749 - 0785 Lower Handle 11 714 - 0115 Cotter Pin 1 / 8 " Dia . x 1.0 " 32 734 - 1035 Wheel Assây . Comp . 12 " x 3 " 12 712 - 0206 Hex Nut 1 / 2 - 13 Thd . 33 738 - 0185 Rear Axle 13 736 - 0921 L - Wash . 1 / 2 " I.D . 34 710 - 0599 Scr . TT . 1 / 4 - 20 : . 5 â * 14 734 - 1036 Swivel Caster Wheel 5 " Dia . x 1.25 " 35 710 - 1502 Scr . AB 8 - 18 : . 375 * 15 16273 Caster Arm Assây . 36 712 - 3004A Nut - Lock Hx . Flg . 5 / 16 - 18 * 16 710 - 0726 Hex Wash . Hd . â AB â Tap Scr . 5 / 16 " x . 75 " Lg . 37 7360329 Lockwasher * 17 14529 Caster Arm Bracket 38 751 - 0447 Deï¬ector * 18 747 - 0542 Height Adjustment Crank 39 751 - 0632 Guard - Mufï¬er * 19 736 - 0451 Saddle Wash . . 32 " I.D . x . 93 " 40 751 - 0646 Bracket - Mufï¬er Guard * 20 736 - 0159 Fl - Wash . . 34 " I.D . x . 87 " O.D . 41 736 - 0162 Flat Washer 21 710 - 0170 Hex L - Bolt 5 / 16 - 24 x . 64 " Lg . * 5 H.P . model only 10
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MANUFACTURERâS LIMITED WARRANTY FOR : For TWO YEARS from the date of retail purchase for products sold or exported outside of the United within the United States of America , its possessions States of America , its possessions and territories , and territories , MTD PRODUCTS INC will , at its except those sold through MTD PRODUCTS INCâs option , repair or replace , for the original purchaser , authorized channels of export distribution . free of charge , any part or parts found to be Other Warranties : defective in material or workmanship . This warranty covers units which have been operated and 1 . The engine or component parts thereof carry maintained in accordance with the operating separate warranties from their manufacturers . instructions furnished with the unit , and which have Please refer to the applicable manufacturers not been subject to misuse , abuse , commercial use , warranty on these items . neglect , accident , improper maintenance or 2 . * Batteries are covered by a 90 - day replacement alteration . warranty . Normal wear parts or components thereof are 3 . Log splitter pumps , valves and cylinders or subject to separate terms as noted below in the â No component parts thereof are covered by a one Fault Ninety Day Consumer Warranty â clause . year warranty . All normal wear part failures will be covered on this 4 . All other warranties , express or implied , product for a period of 90 days regardless of cause . including any implied warranty of After 90 days , but within the two year period , normal merchantability or fitness for a particular wear parts failures will be covered ONLY IF caused purpose , are hereby expressly disclaimed in by defects in material or workmanship of OTHER their entirety . component parts . Normal wear parts are defined as 5 . The provisions as set forth in this warranty batteries * , belts , blades , blade adapters , grass provide the sole and exclusive remedy of MTD bags , rider deck wheels , seats , snow thrower skid PRODUCTS INCâs obligations arising from the shoes , shave plates and tires . sales of its products . MTD PRODUCTS INC will How to obtain service : Warranty service is not be liable for incidental or consequential loss available , with proof of purchase , through your local or damage . authorized service dealer . To locate the dealer in How state law relates to this warranty : This your area , please check the yellow pages or contact limited warranty gives you specific legal rights , and the Customer Service Department of MTD you may also have other rights which vary from PRODUCTS INC , P . O . Box 368022 , Cleveland , state to state . Certain disclaimers are not allowed in Ohio 44136 - 9722 . Phone 1 ( 800 ) 800 - 7310 . The some states and therefore they may not apply to return of a complete unit will not be accepted by the you under all circumstances . factory unless prior written permission has been extended by the Customer Service Department of NOTE : This warranty does not cover routine MTD PRODUCTS INC . maintenance items such as lubricants , filters , blade sharpening and tune - ups , or adjustments such as Transportation charges : Transportation charges brake adjustments , clutch adjustments or deck for the movement of any power equipment unit or adjustments . Nor does this warranty cover normal attachment are the responsibility of the purchaser . deterioration of the exterior finish due to use or Units exported out of the United States : MTD exposure . PRODUCTS INC does not extend any warranty