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OPERATOR’S MANUAL Chipper Shredder Vacuum Yard Boss 550 IMPORTANT : READ SAFETY RULES AND INSTRUCTIONS CAREFULLY 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 arrester for the muffler is available through your nearest engine authorized service dealer or contact the service department , P.O . Box 361131 Cleveland , Ohio 44136 - 9722 . WHITE OUTDOOR PRODUCTS COMPANY P.O . BOX 361131 CLEVELAND , OHIO 44136 - 9722 770 - 10018C.fm PRINTED IN U.S.A . FORM NO . ( 4 / 01 )
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TABLE OF CONTENTS Content Page Important Safe Operation Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Assembling Your Chipper Shredder Vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Know Your Chipper Shredder Vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Operating Your Chipper Shredder Vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Adjusting Your Chipper Shredder Vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Maintaining Your Chipper Shredder Vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 FINDING MODEL NUMBER This Operator’s Manual is an important part of your new chipper shredder vacuum . 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 . • You can locate the model number by standing behind the unit and looking down at the frame below the engine . 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 : WHITE OUTDOOR Copy the serial number here : PRODUCTS COMPANY P.O . BOX 361131 CLEVELAND , OHIO 44136 CALLING 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 Dealer Referral Line . Call 1 - ( 800 ) - 949 - 4483 to reach the Customer Dealer Referral Line . Please have your unit’s model number and serial number ready when you call . See previous section to locate this information . For more details about your unit , visit our website at www.whiteoutdoor.com 2
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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 : The Engine Exhaust from this product contains chemicals known to the State of California to cause cancer , birth defects or other reproductive harm . : This machine was built to be operated according to the rules for safe operation in this DANGER 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 . 2 . Always wear safety glasses or safety goggles TRAINING during operation or while performing an adjustment 1 . Read , understand , and follow all instructions on the or repair , to protect eyes . Thrown objects which machine and in the manual ( s ) before attempting to ricochet can cause serious injury to the eyes . assemble and operate . Keep this manual in a safe 3 . Wear sturdy , rough - soled work shoes and close - place for future and regular reference and for fitting slacks and shirts . Loose fitting clothes or ordering replacement parts . jewelry can be caught in movable parts . Never 2 . Be familiar with all controls and their proper operate this machine in bare feet or sandals . Wear operation . Know how to stop the machine and leather work gloves when feeding material in the disengage them quickly . chipper chute . 3 . Never allow children under 16 years old to operate 4 . Before starting , check all bolts and screws for this machine . Children 16 years old and over proper tightness to be sure the machine is in safe should read and understand the operation working condition . Also , visually inspect machine instructions and safety rules in this manual and for any damage at frequent intervals . should be trained and supervised by a parent . 5 . Maintain or replace safety and instructions labels , 4 . Never allow adults to operate this machine without as necessary . proper instruction . 6 . To avoid personal injury or property damage use 5 . Keep bystanders , helpers , pets , and children at extreme care in handling gasoline . Gasoline is least 75 feet from the machine while it is in extremely flammable and the vapors are explosive . operation . Stop machine if anyone enters the area . Serious personal injury can occur when gasoline is 6 . Never run an engine indoors or in a poorly spilled on yourself or your clothes which can ignite . ventilated area . Engine exhaust contains carbon Wash your skin and change clothes immediately . monoxide , an odorless and deadly gas . a . Use only an approved gasoline container . 7 . Do not put hands and feet near rotating parts or in b . Extinguish all cigarettes , cigars , pipes , and the feeding chambers and discharge opening . other sources of ignition . Contact with the rotating impeller can amputate c . Never fuel machine indoors . fingers , hands , and feet . d . Never remove gas cap or add while the 8 . Never attempt to unclog either the feed intake or engine is hot or running . discharge opening , remove or empty vacuum bag , e . Allow engine to cool at least two minutes or inspect and repair the machine while the engine before refueling . is running . Shut the engine off and wait until all f . Never over fill fuel tank . Fill tank to no more moving parts have come to a complete stop . than 1 / 2 inch below bottom of filler neck to Disconnect the spark plug wire and ground it provide space for fuel expansion . against the engine . g . Replace gasoline cap and tighten securely . h . If gasoline is spilled , wipe it off the engine PREPARATION and equipment . Move machine to another area . Wait 5 minutes before starting the 1 . Thoroughly inspect the area where the equipment engine . is to be used . Remove all rocks , bottles , cans , or i . Never store the machine or fuel container other foreign objects which could be picked up or inside where there is an open flame , spark , thrown and cause personal injury or damage to the or pilot light ( e.g . furnace , water heater , machine . space heater , clothes dryer , etc . ) 3
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j . To reduce a fire hazard , keep machine free 11 . Keep all guards , deflectors and safety devices in of grass , leaves , or other debris build - up . place and operating properly . Clean up oil or fuel spillage and remove any 12 . Keep your face and body back and to the side of fuel soaked debris . the chipper chute while feeding material into the k . Allow machine to cool at least 5 minutes machine to avoid accidental kickback injuries . before storing . 13 . Never operate this machine without good visibility or light . Always be sure of your footing and keep a firm hold on the handles . OPERATION 14 . Do not operate this machine on a gravel surface . 1 . Do not put hands and feet near rotating parts or in 15 . Do not operate this machine while under the the feeding chambers and discharge opening . influence of alcohol or drugs . Contact with the rotating impeller can amputate 16 . Muffler and engine become hot and can cause a fingers , hands , and feet . burn . Do not touch . 2 . Before starting the machine , make sure the chipper 17 . Never pick up or carry machine while the engine is chute , feed intake , and cutting chamber are empty running . and free of all debris . 3 . Thoroughly inspect all material to be shredded and MAINTENANCE AND STORAGE remove any metal , rocks , bottles , cans , or other 1 . Never tamper with safety devices . Check their foreign objects which could cause personal injury proper operation regularly . or damage to the machine . 2 . Check bolts and screws for proper tightness at 4 . If the impeller strikes a foreign object or if your frequent intervals to keep the machine in safe machine should start making an unusual noise or working condition . Also , visually inspect machine vibration , immediately shut the engine off . Allow the for any damage and repair , if needed . impeller to come to a complete stop . Disconnect 3 . Before cleaning , repairing , or inspecting , stop the the spark plug wire , ground it against the engine engine and make certain the impeller and all and perform the following steps : moving parts have stopped . Disconnect the spark a . Inspect for damage . plug wire and ground it against the engine to b . Repair or replace any damaged parts . prevent unintended starting . c . Check for any loose parts and tighten to 4 . Do not change the engine governor settings or assure continued safe operation . overspeed the engine . The governor controls the 6 . Do not allow an accumulation of processed maximum safe operating speed of the engine . material to build up in the discharge area . This can 5 . Maintain or replace safety and instruction labels , as prevent proper discharge and result in kickback of necessary . material through the feed opening . 6 . Follow this manual for safe loading , unloading , 7 . Do not attempt to shred or chip material larger than transporting , and storage of this machine . specified on the machine or in this manual . 7 . Never store the machine or fuel container inside Personal injury or machine damage could result . where there is an open flame , spark or pilot light 8 . Never attempt to unclog either the feed intake or such as a water heater , furnace , clothes dryer , etc . discharge opening while the engine is running . 8 . Always refer to the operator’s manual for proper Shut the engine off , wait until all moving parts have instructions on off - season storage . stopped , disconnect the spark plug wire and 9 . If the fuel tank has to be drained , do this outdoors . ground it against the engine before clearing debris . 10 . Observe proper disposal laws and regulations for 9 . Never operate without vacuum bag and discharge gas , oil , etc . to protect the environment . chute properly attached to the machine . Never empty or change vacuum bag while the engine is running . Zippered end of vacuum bag must be kept closed at all times during operation . 10 . Never operate without either the inlet nozzle or optional hose attachment properly attached to the machine . Never attempt to attach or change either attachment while the engine is running . 4
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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 . NOTE : Not all safety labels shown may apply to your chipper shredder vacuum . SECTION 2 : ASSEMBLING YOUR CHIPPER SHREDDER VACUUM IMPORTANT : This unit is shipped without gasoline or oil WARNING : Before setting up your chipper in the engine . Be certain to service engine with gasoline shredder vacuum , disconnect the spark and oil as instructed in the separate engine manual plug wire from the spark plug and ground before operating your machine . against the engine . NOTE : Reference to right or left hand side of the chipper shredder vacuum is observed from the operating position . Nozzle Removing Unit From Carton • Remove staples , break glue on top flaps , or cut tape at carton end and peel along top flap to open carton . • Remove loose parts if included with unit ( i.e . , operator’s manual , etc . ) • Cut along corners , lay carton down flat , and remove packing material . • Roll or slide unit out of carton and check carton thoroughly for loose parts . Bag Loose Parts In Carton ( See Figure 1 ) • Nozzle • Bag Figure 1 5
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Attaching The Nozzle Bag Opening Bag Discharge • Remove three wing nuts from the front of the Chute chipper shredder vacuum . • Place nozzle in position over the three studs on unit and secure with wing nuts just removed . See Figure 2 . Wing Wing Nuts Nut Nozzle Figure 3 • Place the four straps on the top of the bag over upper handle , hooking them on the studs to secure in place . Squeeze the clamp on the drawstring and pull the drawstring tight . Release the clamp . See Figure 4 . Figure 2 Bag Straps NOTE : The metal tab on the nozzle must depress the safety switch button attached to the front of chipper shredder vacuum or the engine will not start . Attaching The Bag • Place bag under of upper handle assembly and slip the front opening on the bag over the discharge Bag chute , making certain it is over the rim on the Straps discharge chute . See Figure 3 . Figure 4 SECTION 3 : KNOW YOUR CHIPPER SHREDDER VACUUM WARNING : Be familiar with all controls Nozzle Door Adjustment Levers and their proper operation . Know how to The nozzle adjustment levers are located on each side stop the machine and disengage them of the nozzle door . They are used to adjust the nozzle quickly . door for ground clearance that will provide the best performance for the operating conditions . See Figure 5 . Bag Nozzle Collects shredded or chipped material fed through the Yard waste such as leaves and pine needles can be chipper chute or vacuumed up through the nozzle . vacuumed up through the nozzle for shredding . See Figure 5 . See Figure 5 . Chipper Chute Drive Clutch Control Allow twigs and small branches up to 2 ” in diameter to The drive clutch control is located on the upper handle be fed into the impeller for chipping . See Figure 5 . assembly . Squeezing the drive clutch control against Caster Locks the upper handle engages the rear wheels . Release the The caster locks are located on top of each front caster drive clutch control to slow down or stop the wheel wheel . Refer to the Adjustment Section to position drive . See Figure 5 . wheel locks . See Figure 5 . 6
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Throttle Control Lever ( Not Shown ) Engine Controls The throttle control lever is located on the engine . It See the separate engine manual for the location and controls the engine’s speed and stops the engine . See function of the controls on the engine . separate engine manual packed with unit for details . Stopping Engine Starter Handle ( Not Shown ) The starter handle is located on the engine . Pull the • Move throttle control lever to STOP or OFF starter handle to start engine . position . • Disconnect spark plug wire from spark plug and ground against the engine . Drive Clutch Control Bag Nozzle Nozzle Door Chipper Adjustment Lever Chute Caster Locks Figure 5 SECTION 4 : OPERATING YOUR CHIPPER SHREDDER VACUUM WARNING : Read , understand , and follow WARNING : Use extreme care when all instructions and warnings on the handling gasoline . Gasoline is extremely machine and in this manual before flammable and the vapors are explosive . operating . Never fuel machine indoors or while the engine is hot or running . Extinguish Always wear the safety glasses provided cigarettes , cigars , pipes , and other with this machine during operation or sources of ignition . while performing any adjustments or repairs . Thrown objects which ricochet Starting Engine can cause serious injury to the eyes . • Attach spark plug wire to spark plug . Make certain the metal cap on the end of the spark plug is Gas And Oil Fill - Up fastened securely over the metal tip on the spark Service the engine with gasoline and oil as instructed in plug . the separate engine manual packed with your chipper • Make certain drive clutch control is in the shredder vacuum . Read instructions carefully . disengaged ( released ) position . • Engines with choke lever : Move choke lever on engine to CHOKE position . ( A warm engine may not require choking ) . 7
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• Engines with primer : Using the Chipper Shredder Vacuum Prime engine as instructed in separate engine Place both hands on top of upper handle to push unit manual . over yard waste . Yard waste such as leaves and pine • The throttle control lever is located on the engine . needles can be vacuumed up through the nozzle for Move engine throttle control lever to FAST or shredding . After material has been shredded by the START position . blades on the impeller assembly , it will be discharged • Place one foot on the left rear wheel to prevent the into catcher bag . Do not attempt to shred or chip any unit from skidding while starting . material other than vegetation found in a normal yard • Grasp starter handle and pull rope out slowly until ( i.e . branches , leaves , twigs , etc . ) Avoid fibrous plants engine reaches start of compression cycle ( rope such as tomato vines until they are thoroughly dried will pull slightly harder at this point ) . out . Materials such as stalks or heavy branches up to 2 ” NOTE : A noise will be heard when at the start of the in diameter may be fed into the chipper chute . compression cycle . This noise should be expected until See Figure 6 . the impeller reaches full speed . WARNING : Do not attempt to shred , chip , • Pull rope with a rapid , continuous , full arm stroke . or vacuum any material larger than Keep a firm grip on starter handle . Let rope rewind specified on the machine or in this slowly . manual . Personal injury or damage to the • Repeat the previous steps until engine fires . When machine could result . engine starts , move choke control ( if equipped ) gradually to RUN position . WARNING : Keep bystanders , helpers , pets , and children at least 75 feet from the machine before starting and while operating . Do not operate this machine unless the discharge chute and bag have been properly installed and secured to the machine . To Empty Bag The bag is designed to be emptied without being removed from unit . Open the large zipper in the rear of the bag to empty the contents . If bag is removed for any reason , follow the instructions for attaching the bag in the ASSEMBLY section . Be certain the zipper is closed completely when operating the unit . Figure 6 To Engage Drive IMPORTANT : The flail screen is located inside the To engage the wheel drive , hold the drive clutch control housing in the discharge area . If the flail screen against the upper handle . Releasing the drive clutch becomes clogged , remove and clean as instructed in control stops the rear wheels from driving . Release the MAINTAINING YOUR CHIPPER SHREDDER drive clutch control to slow down when negotiating an VACUUM . For best performance , it is also important to obstacle , making a turn , or stopping . Engage control keep the chipper blade sharp . slowly to prevent the front wheels from lifting up . Tire Pressure ( Pneumatic Tires Only ) WARNING : Maximum tire pressure under any circumstance is 30 psi . Equal tire pressure should be maintained at all times . 8
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SECTION 5 : ADJUSTING YOUR CHIPPER SHREDDER VACUUM WARNING : Do not at any time make any Drive Clutch Cable Adjustment adjustments without first stopping engine , Adjust the drive clutch control if the chipper shredder disconnecting spark plug wire , and vacuum moves forward with the drive clutch control grounding it against the engine . disengaged , if it does not self - propel with the drive clutch control engaged , or if drive belt is slipping ( unit Front Caster Wheels hesitates while engine maintains the same speed ) . Use This chipper shredder vacuum is equipped with front the adjustment wheel located in the clutch control caster wheels . The casters can be locked in a straight housing to tighten or loosen the clutch cable . In ahead position or position to swivel freely . Lift and place addition , the adjustment wheel may also be used to pins in the larger holes for locked or straight ahead determine the position in which the drive clutch control operation . Place pins in smaller holes to allow casters is engaged . If it is more comfortable to have the drive to rotate freely . Lock wheels in straight position when engaged with the lever further away from the handle , operating on slopes . See Figure 7 . tighten the clutch cable . See Figure 9 . Smaller Hole ( Rotate Freely ) Tighten Adjustment Wheel Larger Hole ( Locked ) Loosen Figure 7 Figure 9 Nozzle Door Height Adjustment The nozzle adjustment levers are located on each side Engine Adjustments of the nozzle door . The nozzle door can be adjusted to Refer to the separate engine manual for engine any of five positions , ranging from 1 / 2 ” to 3 ” ground adjustment instructions . clearance that will provide the best performance for the operating conditions . Slide the height adjustment lever forward or backward for adjusting the nozzle door upwards or downwards . Height must be adjusted equally . In general , raise the nozzle to vacuum a thick layer of leaves and lower the nozzle for smooth surfaces . See Figure 8 . Nozzle Door Adjustment Lever Figure 8 9
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SECTION 6 : MAINTAINING YOUR CHIPPER SHREDDER VACUUM WARNING : Before performing any mainte - Lubrication ( Refer to Figure 5 ) nance or repairs , stop the engine , wait Wheels : Lubricate the rear wheels with light oil once a until the machine comes to a complete season . stop , disconnect the spark plug wire and Nozzle Door Adjustment Levers : Lubricate each ground against the engine to prevent unin - adjustment lever once a season with light oil . tended starting . Front Caster Wheels : Grease fittings are located on the front caster wheels to provide easy lubrication of the swivel pins . Customer Responsibilities hours use season hours storage hours each MAINTENANCE SERVICE 100 50 25 a Before Every Before Once Every Every SCHEDULE DATES Lubricate Wheels PRODUCT Lubricate Adjustment Levers Lubricate Caster Wheels Check Chipper Blades Check Oil Change Oil ENGINE Check Air Filter Clean Engine Check Spark Plug Maintenance Removing The Flail Screen If the discharge area becomes clogged , remove the flail Engine screen and clean area as follows : Refer to the separate engine manual for all engine • Stop the engine and make certain the chipper maintenance instructions . shredder vacuum has come to a complete stop . • Check engine oil level before each use as • Disconnect spark plug wire from spark plug and instructed in the separate engine manual packed ground against the engine . with your unit . Read and follow instructions • Remove the vacuum bag from the unit . carefully . • Remove the four self - tapping screws from the • Clean air cleaner every 25 hours under normal bottom of the discharge chute , and the hex bolt , flat conditions or once a season . Clean every few hours washer and hex nut from the top . Remove the under extremely dusty conditions . To service the air discharge chute assembly . See Figure 10 . cleaner , refer to the separate engine manual • Remove the two hex bolts and hex nuts which packed with your unit . extend through the impeller housing . Lift the flail • The spark plug should be cleaned and the gap screen from the inside the housing . See Figure 10 . reset once a season . Check engine manual for • Clean the screen by scraping or washing with water correct plug type and gap specifications . and reinstall the screen . NOTE : Be certain to reassemble the flail screen with the curved side down . 10
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Access Plate Hex Bolt Flat Washer Hex Nut Self - Tapping Screws Hex Lock Nuts Discharge Chute Belt Self - Tapping Cover Screws Hex Bolts Figure 11 Hex Nuts WARNING : Use caution when replacing the blades , wear heavy gloves to avoid a Flail Screen contact injury with the weld bolts or the housing while loosening or tightening the blades . • When sharpening blades , follow the original angle of grind . Also , make sure to remove an equal amount from each blade and torque hardware 250 - 300 in . lbs . NOTE : Make certain blades are reassembled with the sharp edge facing upward . Figure 10 Belt Removal And Replacement • Reattach the discharge chute assembly with the NOTE : Because the engine on this has a tapered hardware previously removed and connect the bag crankshaft , a special impeller removal tool ( part number to unit . 753 - 0638 ) is required to remove impeller assembly . Contact your local service dealer . Sharpening Or Replacing Chipper Blades • Disconnect the spark plug wire and ground it away NOTE : When tipping the unit , empty the fuel tank and from the spark plug . keep spark plug side up . • Drain the gasoline and oil from the chipper shredder vacuum . • Disconnect the spark plug wire and ground it • Remove the three wing nuts that secure the nozzle against the engine . to the outer housing and remove the nozzle . Refer • Remove the flail screen as instructed in the to Figure 2 . previous section . • Remove the vacuum bag from the unit . • Remove the plastic belt cover on the front of the • Remove the discharge chute as instructed in the engine by removing the two self - tapping screws . previous section Removing The Flail Screen . See Figure 11 . • Remove the plastic belt cover on the front of the • Remove the access plate by removing two hex lock engine by removing two self - tapping screws . Refer nuts . See Figure 11 . to Figure 11 . • Locate one of the chipper blades in the access • Tip the unit backward so that it rests on the opening by rotating the impeller assembly by hand . handles . Remove the chipper blade using a 3 / 16 ” allen • Remove the lower belt guard by removing the two wrench and a 1 / 2 ” wrench . self - tapping screws . See Figure 12 . • Remove other blade in the same manner to replace or sharpen . 11
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Safety Switch Hex Bolts Self - Tapping Screw Lower Belt Guard Hex Bolts Self - Tapping Screws Figure 14 Figure 12 • Insert the new belt between the frame and • Remove the safety switch from the front of the outer transmission pulley . It may be necessary to use a housing by removing the two self - tapping screws . screwdriver to pry the frame away from the pulley in See Figure 12 . order to insert the belt . Being careful not to damage • Remove the two hex bolts and hex lock nuts which the pulley , apply a slight upward pressure and extend through the housing . Lift the flail screen out place belt around transmission pulley . of the housing . Refer to Figure 10 . See Figure 15 . • Remove the outer housing and housing blades by removing the fourteen self - tapping screws . • Remove the hex bolt , lock washer , and flat washer that secures the impeller assembly to the Belt Guard Mounting crankshaft . See Figure 13 . Spring Adapter Hex Bolt Impeller Lock Washer Assembly Flat Washer Idler Idler Bracket Frame Transmission Pulley Figure 15 • Press down on the belt guard spring by the idler pulley and release spring from the slot on the idler bracket . Place the belt on the idler pulley and place Figure 13 belt guard spring back into the slot on the idler bracket . See Figure 15 . • Thread the special impeller tool into the crankshaft . • Place the mounting adapter against the engine and Stop when the impeller assembly can move on the make sure the hole in the mounting adapter is crankshaft . facing up . • If the old belt is still on the unit , cut belt to remove • Place the inner housing against mounting adapter from unit . and frame . Secure with the five hex bolts and two • Remove the impeller assembly from the crankshaft hex nuts previously removed . Refer to Figure 14 . and unthread the special impeller tool from the • Slide the impeller assembly onto the crankshaft impeller assembly . and place a screwdriver under the belt . Turn the • Remove the inner housing and mounting adapter impeller assembly counterclockwise to seat the belt by removing the five hex bolts and two hex nuts . into the slot on the impeller . Make sure the belt is See Figure 14 . routed inside all belt guards . 12
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• Secure the impeller assembly to the crankshaft using the hex bolt , lock washer , and flat washer Outer Housing previously removed . Torque the bolt to 550 in . lbs . to 700 in . lbs . • Place the housing blades against the inner housing . See Figure 16 . Inner Housing Holes for Screwdrivers Figure 17 Storing Your Chipper Shredder Vacuum • Clean the equipment thoroughly . Housing Blades • Wipe equipment with an oiled rag to prevent rust . • Refer to engine manual for correct engine storage Figure 16 instructions • Store unit in a clean , dry area . Do not store next to • Place the outer housing against the inner housing . corrosive materials such as fertilizer . Insert two screwdrivers into the holes to hold the blades in place while attaching the outer housing . WARNING : Never store the machine or See Figure 17 . fuel container indoors where there is an • Secure with the fourteen self tapping screws that open flame , spark , or pilot light such as on were previously removed and insert all screws first a water heater , furnace , clothes dryer , or before tightening . other gas appliance . • Reassembled following the previous steps in reverse order . 13
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SECTION 7 : TROUBLESHOOTING Problem Cause Remedy Engine fails to start 1 . Spark plug wire disconnected . 1 . Connect wire to spark plug . 2 . Fuel tank empty or stale fuel . 2 . Fill tank with clean , fresh gasoline . 3 . Throttle control lever not in correct 3 . Move throttle lever to FAST position . starting position . ( If Equipped ) 4 . Choke not in CHOKE position . 4 . Move choke to CHOKE position . ( If Equipped ) 5 . Blocked fuel line . 5 . Clean fuel line . 6 . Faulty spark plug . 6 . Clean , adjust gap , or replace . Engine runs erratic 1 . Spark plug wire loose . 1 . Connect and tighten spark plug wire . 2 . Unit running on CHOKE . 2 . Move choke lever to OFF position . ( If Equipped ) 3 . Blocked fuel line or stale fuel . 3 . Clean fuel line ; fill tank with clean , fresh gasoline 4 . Water or dirt in fuel system . 4 . Drain fuel tank . Refill with fresh fuel . 5 . Dirty air cleaner . 5 . Clean or replace air cleaner . 6 . Carburetor out of adjustment . 6 . See authorized service dealer . Too much vibration 1 . Loose parts or damaged impeller . 1 . See authorized service dealer . 1 . Fill crankcase with proper oil . Engine overheats 1 . Engine oil level low . 2 . Clean or replace air cleaner . 2 . Dirty air cleaner . 3 . See authorized service dealer . 3 . Carburetor not adjusted properly . Occasional skip ( hesitates ) 1 . Spark plug gap too close . 1 . Adjust gap to . 030 ” . at high speed Unit does not discharge 1 . Discharge chute clogged . 1 . Stop engine immediately and disconnect spark plug wire . Clean flail screen and inside of discharge opening . 2 . Foreign object lodged in impeller . 2 . Stop engine and disconnect spark plug wire . Remove lodged object . 3 . Low engine RPM 3 . Always run engine at full throttle . 4 . Vacuum bag is full . 4 . Empty bag . Rate of discharge slows 1 . Low engine RPM . 1 . Always run engine at full throttle . considerably or 2 . Chipper blade dull . 2 . Replace chipper blade or see your composition of discharged authorized service dealer . material changes . NOTE : For repairs beyond the minor adjustments listed above , contact your nearest authorized service dealer . 14
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NOTES 15
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Model 550 1 2 3 4 2 3 5 9 10 8 6 7 11 12 13 15 9 14 10 8 14 16 13 16
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Model 550 Ref . Part No . Part Description No . 1 . 681 - 0095 Chipper Chute 2 . 712 - 3010 Hex Nut 5 / 16 - 18 3 . 736 - 0242 Bell Washer . 340 ID x . 872 OD 4 . 731 - 2475 Discharge Chute 5 . 764 - 0644 Bag 6 . 631 - 0202 Nozzle Assembly 7 . 731 - 1831 Nozzle Flap 8 . 710 - 0969 Screw 9 . 720 - 0190 Height Adjustment Knob 10 . 732 - 0754 Spring Lever 11 . 781 - 0702 Index Bracket RH 12 . 781 - 0703 Index Bracket LH 13 . 738 - 0913 Shoulder Screw 14 . 736 - 3084 Flat Washer . 510 x 1.12 x . 060 15 . 712 - 0431 Hex Flange Lock Nut 3 / 8 - 16 16 . 631 - 0201 Door Assembly 777D04511 Label - CSV Housing YB 550 777D04512 Label - Engine 777I20071 Label - Self Propelled 777I20123 Label - Caster Wheel Lock 777S30041 Label - Warning / Avoid Injury 777S30131 Label - Caution Do Not Operate 777S30183 Label - Flail Housing Warning 17
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Model 550 1 2 3 4 7 2 6 13 14 3 15 13 18 14 16 5 17 8 10 25 21 11 9 26 12 22 5 3 2 15 17 14 19 30 23 31 24 30 27 34 28 35 32 29 33 18
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Model 550 Ref . Ref . Part No . Part Description Part No . Part Description No . No . 1 . 681 - 0116 Impeller Ass’y Complete 18 . 681 - 0098 Housing Ass’y Inner Flail 2 . 719 - 0329 Flail Blade 19 . 781 - 0599 Upper Shredder Blade 3 . 715 - 0166 Spiral Pin 21 . 736 - 0119 Lock Washer 5 / 16 4 . 681 - 0107 Impeller Assembly 22 . 710 - 0772 Hex Cap Screw 5 / 16 - 18 x 2 5 . 711 - 0833B Clevis Pin 23 . 781 - 0653 Flail Housing Blade 6 . 736 - 0119 Lock Washer 5 / 16 24 . 710 - 3008 Hex Cap Screw 5 / 16 - 18 x . 75 7 . 710 - 1054 Cap Screw 5 / 16 - 24 x 1.0 25 . 719 - 0326 Discharge Screen 8 . 742 - 0544 Chipper Blade 26 . 681 - 0060 Housing Ass’y Outer Flail 9 . 712 - 0411 Hex Lock Nut 5 / 16 - 24 27 . 629 - 0241A Wire Harness 10 . 736 - 0247 Flat Washer . 406 x 1 / 1 / 4 28 . 710 - 0896 Hex Washer Screw 1 / 4 - 14 11 . 736 - 0217 Lock Washer 3 / 8 29 . 726 - 0272 Clamp 12 . 710 - 1273 Hex Cap Screw 3 / 8 - 24 x 2.75 30 . 710 - 0382 Hex Cap Screw 1 / 2 - 13 x 5.0 31 . 712 - 0421 Knob 5 / 16 - 18 13 . 723 - 0438 Rubber Seal 14 . 710 - 0604 Hex Washer Screw 5 / 16 - 18 32 . 725 - 3166 Switch 15 . 712 - 0384 Hex Lock Nut 1 / 2 - 13 33 . 731 - 1613 Safety Switch Mounting Cover 16 . 781 - 0627 Chipper Blade Cover 34 . 710 - 1268 Hex Washer Screw 17 . 712 - 3004A Hex Flange Lock Nut 5 / 16 - 18 35 . 725 - 1700 Switch Cover 19
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Model 550 9 11 2 5 6 4 10 6 5 1 13 17 8 3 7 4 16 15 8 17 14 18 19 12 44 49 30 24 27 27 29 25 40 34 45 55 35 36 33 48 32 42 23 41 37 38 22 28 54 51 26 50 52 39 31 47 43 50 53 46 20
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Model 550 Ref . Ref . Part No . Part Description Part No . Part Description No . No . 1 . 781 - 0677 Chain Case LH 29 . 741 - 0414 Flange Bearing . 629 ID 2 . 781 - 0676 Chain Case RH 30 . 741 - 0415 Flange Bearing . 566 ID 3 . 754 - 0457 V - Belt 31 . 719 - 0325 Lower Housing 4 . 748 - 0313 Spacer 32 . 748 - 0373 Flange Bearing . 503 ID 5 . 741 - 0413 Hex Flange Bearing 33 . 719 - 0324A Upper Housing 6 . 736 - 0336 Flat Washer 34 . 748 - 0208A Flange Bearing . 378 ID 7 . 713 - 0422 Chain 35 . 710 - 0589 Hex Washer Screw # 10 - 16 x . 75 8 . 710 - 0896 Hex Washer Screw 1 / 4 - 14 36 . 717 - 1433 Pinion Shaft 10T 9 . 710 - 0603 Hex Washer Screw 5 / 16 37 . 721 - 0329 Oil Seal 10 . 618 - 0256 Transmission Assembly 38 . 736 - 0314 Thrust Washer . 382 ID x . 684 OD 11 . 611 - 0063 Axle Assembly 39 . 736 - 0520 Flat Washer . 504 ID x . 70 OD 12 . 10622B Plastic Spring Ratchet 40 . 741 - 0479 Thrust Bearing . 375 ID x . 812 OD 13 . 634 - 0136 Wheel Complete 10 x 4 x 4 41 . 656 - 0008 Pulley Ass’y Idler w / Bearing 14 . 712 - 0456 Hex Nut 1 / 4 - 20 42 . 741 - 0556 Needle Bearing . 375 ID x . 375 OD 15 . 712 - 3027 Hex Flanged Lock Nut 1 / 4 - 20 43 . 710 - 0589 Hex Screw # 10 - 16 x . 75 16 . 714 - 0104 Cotter Pin 44 . 710 - 1062 Hex Cap Screw 1 / 4 - 20 x 1.25 17 . 736 - 0366 Flat Washer 5 / 8 ID x 1.0 OD 45 . 712 - 0138 Hex Nut 1 / 4 - 28 18 . 748 - 0188B Pawl LH . 345 ID 46 . 712 - 3045 Hex Jam Nut 5 / 16 - 24 LH Thd 748 - 0381 Pawl RH . 345 ID 47 . 732 - 0357A Extension Spring 1.12 Lg 19 . 748 - 0405 Wheel Ratchet 1.62 OD x . 5 serr 48 . 736 - 0270 Bell Washer . 265 ID x . 75 OD 21 . 618 - 0255 Transmission Assembly Complete 49 . 736 - 0329 Lock Washer 1 / 4 22 . 16500A Hex Bearing Cup 50 . 736 - 0425 Bell Washer . 325 ID x . 930 OD 23 . 711 - 1118 Output Shaft 6T Sprocket 51 . 738 - 0440 Shoulder Spacer . 375 ID x . 165 OD 24 . 717 - 1432 Helical 34T Gear 52 . 738 - 0826 Shoulder Bolt 1 / 4 - 28 x . 375 25 . 721 - 0213 Oil Seal 53 . 756 - 0656 Flat Pulley 5.06 Dia 26 . 736 - 0187 Flat Washer . 64 ID x 1.24 OD 54 . 782 - 7569 Belt Keeper 27 . 736 - 0336 Flat Washer 5 / 8 x 1.0 55 . 682 - 0054 Idler Bracket 28 . 741 - 0413 Hex Flange Bearing . 631 ID IMPORTANT : For a proper working machine , use Factory Approved Parts . V - BELTS are especially designed to engage and disengage safely . A substitute ( non OEM ) V - Belt can be dangerous by not disengaging completely . 21
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Model 550 5 1 6 2 4 3 7 8 3 9 20 11 12 10 8 2 22 26 13 15 21 17 14 13 13 12 16 19 26 24 18 23 12 18 29 26 25 12 13 28 30 25 26 31 27 12 18 32 30 34 36 35 13 29 37 38 32 29 34 36 35 13 39 33 37 20 40 38 41 42 38 43 45 37 44 29 38 46 47 37 44 48 46 45 47 48 22
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Model 550 Ref . Ref . Part No . Part Description Part No . Part Description No . No . 1 . 749 - 1095 Upper Handle 25 . 710 - 0157 Hex Cap Screw 5 / 16 - 24 x . 75 2 . 1539 - 019 Push Nut 26 . 710 - 3103 Hex Cap Screw 5 / 16 - 18 x 1.75 3 . 711 - 0737 Stud Pin . 250 x 1.75 27 . 749 - 1094 Lower Push Handle 4 . 746 - 0714 Clutch Cable 56 " 28 . 710 - 0502A Screw 3 / 8 - 16 x 1.25 5 . 731 - 1735 Upper Clutch Cover 29 . 710 - 0604 Hex Washer Screw 5 / 16 - 18 x . 625 6 . 731 - 0620 Drive Lever 30 . 741 - 0413 Hex Flange Bearing . 631 x . 720 7 . 731 - 1736 Lower Clutch Cover 31 . 681 - 0097A Frame Assembly 8 . 710 - 0841 Screw # 10 - 12 x . 750 32 . 781 - 0700 Axle Bracket 9 . 731 - 1059 Mounting Cable Cap 33 . 781 - 0697 Transmission Cover 10 . 710 - 1331 Screw # 10 - 16 x 1.25 34 . 747 - 0924 Lock Pin 11 . 710 - 0805 Hex Cap Screw 5 / 16 - 18 x 1.50 35 . 732 - 0306 Compression Spring 12 . 736 - 0451 Shoulder Washer . 320 ID x . 93 OD 36 . 726 - 0214 Push Cap 13 . 712 - 3004A Hex Flange Lock Nut 5 / 16 - 18 37 . 736 - 0366 Flat Washer 5 / 8 ID x 1.0 OD 14 . 725 - 0157 Cable Tie 38 . 741 - 0487A Flange Bearing . 632 ID 15 . 712 - 0138 Hex Nut 1 / 4 - 28 39 . 736 - 0264 Flat Washer . 330 ID x . 630 OD 16 . 736 - 0329 Lock Washer 1 / 4 40 . 714 - 0104 Cotter Pin 17 . 781 - 0647 Discharge Chute Bracket 41 . 681 - 0087 Bracket Assembly 18 . 710 - 3008 Hex Cap Screw 5 / 16 - 18 x . 75 42 . 737 - 3000 Grease Fitting 3 / 16 19 . 747 - 0815 Eye Bolt 43 . 736 - 0931 Flat Washer . 203 ID x . 403 OD 20 . 710 - 0896 Hex Washer Screw 1 / 4 - 14 x . 625 44 . 681 - 0088 Bracket Assembly 21 . 731 - 1646 Belt Cover 45 . 710 - 0521 Hex Cap Screw 3 / 8 - 16 x 3.0 22 . 719 - 0359 Engine Mounting Adapter 46 . 712 - 0431 Flange Lock Nut 3 / 8 - 16 23 . 747 - 0929A Belt Keeper 47 . 750 - 1042 Spacer 24 . 736 - 3008 Flat Washer . 344 x . 75 x . 12 48 . 734 - 1804 Wheel 6.0 x 2.0 NOTE : For painted parts , please refer to the list of color codes below . Please add the applicable color code , wherever needed , to the part number to order a replacement part . For instance , if a part , numbered 700 - xxxx , is painted Oyster Gray , the part number to order would be 700 - xxxx - 0662 . Oyster Gray : 0662 Powder Black : 0637 23
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MANUFACTURER’S LIMITED WARRANTY FOR : c . Log splitter pumps , valves and cylinders have a sepa - The limited warranty set forth below is given by White Out - rate one year warranty . door Products Co . with respect to new merchandise pur - d . White Outdoor Co . does not extend any warranty for chased and used in the United States , its possessions and products sold or exported outside of the United States territories . of America , its possessions and territories , except those sold through White Outdoor Co . authorized White Outdoor Products Co . warrants this product against channels of export distribution . defects in material and workmanship for a period of two ( 2 ) years commencing on the date of original purchase and No implied warranty , including any implied warranty of will , at its option , repair or replace , free of charge , any part merchantability or fitness for a particular purpose , found to be defective in material or workmanship . This lim - applies after the applicable period of express written ited warranty shall only apply if this product has been oper - warranty above as to the parts as identified . No other ated and maintained in accordance with the Operator’s express warranty or guaranty , whether written or oral , Manual furnished with the product , and has not been sub - except as mentioned above , given by any person or ject to misuse , abuse , commercial use , neglect , accident , entity , including a dealer or retailer , with respect to any improper maintenance , alteration , vandalism , theft , fire , product shall bind White Outdoor Co . During the water or damage because of other peril or natural disaster . period of the Warranty , the exclusive remedy is repair Damage resulting from the installation or use of any acces - or replacement of the product as set forth above . sory or attachment not approved by White Outdoor Prod - ( Some states do not allow limitations on how long an ucts Co . for use with the product ( s ) covered by this manual implied warranty lasts , so the above limitation may not will void your warranty as to any resulting damages . apply to you . ) Normal wear parts or components thereof are subject to The provisions as set forth in this Warranty provide the separate terms as follows : All normal wear part or compo - sole and exclusive remedy arising from the sales . nent failures will be covered on the product for a period of White Outdoor Co . shall not be liable for incidental or 90 days regardless of cause . After 90 days , but within the consequential loss or damages including , without limi - two year period , normal wear part failures will be covered tation , expenses incurred for substitute or replace - ONLY IF caused by defects in material or workmanship of ment lawn care services , for transportation or for OTHER component parts . Normal wear parts and compo - related expenses , or for rental expenses to temporarily nents include , but are not limited to , belts , blades , blade replace a warranted product . ( Some states do not allow adapters , grass bags , rider deck wheels , seats , snow the exclusion or limitation of incidental or consequential thrower skid shoes , shave plates and tires . Batteries are damages , so the above exclusion or limitation may not covered by a 90 - day limited replacement warranty . apply to you . ) HOW TO OBTAIN SERVICE : Warranty service is available , In no event shall recovery of any kind be greater than the WITH PROOF OF PURCHASE THROUGH YOUR LOCAL amount of the purchase price of the product sold . Alteration WHITE OUTDOOR DEALER . To locate the dealer in your of the safety features of the product shall void this War - area , please check for a listing in the Yellow Pages or con - ranty . You assume the risk and liability for loss , damage , or tact the Customer Dealer Referral Line of White Outdoor injury to you and your property and / or to others and their Co . by calling 1 - 330 - 225 - 8883 or writing to P.O . Box property arising out of the use or misuse or inability to use 361131 , Cleveland , Ohio 44136 - 0019 . the product . This limited warranty does not provide coverage in the following cases : This limited warranty shall not extend to anyone other than a . The engine or component parts thereof . These items the original purchaser , original lessee or the person for carry a separate manufacturer’s warranty . Please refer whom it was purchased as a gift . to the applicable manufacturer’s warranty on these items . How State Law Relates to this Warranty : This limited b . Routine maintenance items such as lubricants , filters , warranty gives you specific legal rights , and you may also blade sharpening and tune - ups , or adjustments such have other rights which vary from state to state . as brake adjustments , clutch adjustments or deck adjustments ; and normal deterioration of the exterior finish due to use or exposure .
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