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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 o
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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 ...................................
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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 S
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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 visib
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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
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Attaching The Nozzle Bag Opening Discharge Bag 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 B
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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. Disc
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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 P
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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 main
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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 a
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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. NO
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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,
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Secure the impeller assembly to the crankshaft using the hex bolt, lock washer, and flat washer Outer previously removed. Torque the bolt to 550 in. lbs. Housing 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 Figur
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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 replac
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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. 631-0
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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 14 17 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 2
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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
