Craftsman 358.79828, Operator'S Manual

Page 1: ...OWNERS MANUAL ...

Page 2: ......

Page 3: ...HRUST VIOLENTLY AWAY FROM MATER IAL IT CANNOT CUT BLADE THRUST CAN CAUSE AMPUTATION OF ARMS OR LEGS KEEP PEOPLE AND ANIMALS 50 FEET 15 METERS AWAY i i WARNING BLADE TRIMMER UNE CAN THRO_ OB JECTS VIOLENTLY YOU CAN BE BLINDED OR INJURED WEAR EYE AND LEG PROTEC TION HAZARD ZONE FOR THROWN OBJECTS BLADE TRIMMER LINE CAN THROW OB JECTS VIOLENTLY OTHERS CAN BE BLINDED OR INJURED KEEP PEOPLE AND ANIMALS...

Page 4: ...SPECIAL NOTICE Forusers on U S Forest Landin the statesof Caiif0mia Maine Oregon New Jersey Idaho Minnesota and Washington AI U S Forest Land and the states of California Public Rseoulces Codes 4442 and 4443 Oregon and Washington require by law that certain internal combustionengines operated on for est brush and or grass covered areas be equipped with a sparkarrestor maintained ineffective workin...

Page 5: ...ing Saw Blade i i I _ ii1 Line Limiter Plastic Line Xrimmer Shield with Lthe Umiter Hardware Dual Une Cutting Head O Blade Transport Storage Cover eeLS REQUIRED FOR ASSEMBLY Torque Wrench reference torque values are provided throughoutthis manual for tightening hardware Phillips Screwdriver 8 mm Wrench Provided with your Bmshwacker Hex Key Blade Nut Spark Plug Wrench Locking Pin TO REMOVE BRUSHWAC...

Page 6: ...thrott e hand e onto the rightside of the handle bar and align with the screw hole in the handlebar The throttle trigger should be facing away from the engine Insert retention screw and tighten with hex key Secure loose cable to handlebar adjacent to mounting brackets with dip IMPORTANT TWO 2 sCREWS HOLD ALL OF THE MUFFLER PARTS TOGETHER Loosen2 screws from muffler screen cover withhex key Remove ...

Page 7: ...tionsas follows Goto the sectionforthedesiredconfiguration and followthe instructions as provided Dual Line Head for grass light weeds Brush Tri Blade for heavy weeds and light brush up to 1 2 diameter Saw Blade for cutting saplings and similar media up to 2 1 2 in diameter 7 ...

Page 8: ...turning clockwise with blade nut spark plugwrench Save parts removed for future use Remove 4 screws with hex key holding the metal blade shield Save these 4 screws for installationofthe plastic line trimmer shield INSTALLING THE PLASTIC LINE TRIMMER SHIELD See Fig 5 Place the plastic line trimmershieldon the gearbox and align the four screw holes as illustmfed Place the shield support plate under ...

Page 9: ...hietdonme gearbo_cand_alignfour _crew holes _lacethe shield support plate L ndeT the_blade gua _l _ 3rodalign the four screw holes _ecure the metal blade shield using the 4 mounting screws provided ghten evenly 70 Ib in minimum using hex key pro ded in loose parts bag Arbor Shield Support Metal Driving Disk Shield Rgure 8 1See Figure 9 e blade transport storagecover should always be used when hand...

Page 10: ...14 NOTE The blades inf gul esl 2 _1 _4are shownwithout the _ CHECK LIST blade transport storage cover for clarity Check all fasteners Make sure they are tight and there Before installingthe blade make surethe driving diskis m are no loose parts place on the gear box Check to make sure the Throttle Cableis positionedand IMPORTANT WHEN INSTALLING THE SAW BLADE THE ARROW ON BLADE SHOULD POINT iN THE ...

Page 11: ...D BRUSH TRI BLADE METAL BLADE SHIELD _ SAPLING SAW BLADE CUTTING LINE HEAD CONFIGURATION BRUSH BLADE CONRGURATION SAW BLADE CONRGURATION i Figure 15 The ENGINE SWITCH has a stop position The STARTER ROPE HANDLE is used for starting the engine The CHOKE LEVER provides additional fuel to the engine when starting a cold engine The THROTTLE LOCKOUT prevents the THRO I FLE TRIGGER from being squeezed a...

Page 12: ...u ance so the blade or dual lihe head is level with the ground Tension the side belts so that the weightis evenly distdl_ uted across your shoulders A pmpedy adjusted shoulder strap will support the entire weight of the unit freeing your arms and hands to guide and control the cutting motion Turn the engine off before adjusting handlebar Put on shoulder harness and hook on the unit Adjust the hand...

Page 13: ...using supportedto prevent the blade from contacting barefoot or wear sandals jewelry short pants sh6rt anyobject sleeves Being fully covered helps to protect you from Holdunit by hand do not use harness for support _pEieces of toxicp antsthrownby_ e 101adeor cuttit_g head Keep others away when making carburetor _ecuro nair so _ is above ShOUlderlengzn _ecure loose adjustments clothing or clothingw...

Page 14: ... Carefully study this sectlon It is importantthat you understandwhat causes blade thrus_ howyou can reduce the chance of It occurring and howyou can remain in controlof the unit if blade thrustcocurs WHAT CAUSES BLADE THRUST Blade Thrustcan ocourwhen the spinning blade_ on_ tacts an object that it does not cut This contact causes the blade to stop for an instantand then sud denly move or thrust aw...

Page 15: ...forward to the next area to be cut after the return swing and plant feet once more Use the 8 o clockto 10 o clock position for cutting Bringthe engine to full throttlebefore entering the mate rialto be cut The blade has maximum cutting power at fullthrottle end is less likelyto bind stall or cause blade thrust which can result in serious injuryto the operator or others Refer to Guard Against Blade...

Page 16: ...sleeves boots and gloves Be sure the plastic line tdmmer shield is properly at Wearing safety leg guards is recommended Do not go tached barefoot or wear sandals jewelry short pants short Make sure dual ne head s properly installed and ee sleeves Being felly covered helps to protect you from curely fastened Refer to Assembly p p i_es_toxicp _tsthrownbythebladeorcuttinghead Be sure dual line head s...

Page 17: ...esanduse at partial throttle The tip of the line does the cutting You will achievethe best performance and minimumline wear by notcrowd ing the line into cutting area For tdmrning or scalping use partialthrottle to increase line life especially during light duty cutting near objects around which the line can wrap such as small posts trees or fence wire Always release throttle triggerand allow engi...

Page 18: ...or metha nol can attract moisture Whichleads to oil gas separa tion and formation of acids during storage Acidic gas can damage the fuel system of an engine while in stor age To avoid engine problems the fuel system should be emptied before storage for30 days or longer Drein the gas tank then run the fuel out of the carburetor and fuel lines by starting the engineand letting it run until it stops ...

Page 19: ...gger to release thrott eadvance and return engine to idle NOTE Choke and throttle advance are disengaged when tdggel is squeezed STARTING POSITION I Figure 27 STARTING A WARM ENGINE THAT HAS NOT RUN OUT OF FUEL Turnthe choke leverupward to set throttle advance for starting and then return the choke leverto the normal downward position before starting the engine MOTE If throttle tdgger is squeezed ...

Page 20: ...rele ment and check blades for wear A new spark plug and a clean new air filter element assures proper air fuel mix ture and helps your engine run better and last longer Follow the maintenance schedule in this manual _ WARNING DISCONNECT THE SPARK PLUG BEFORE PERFORMING MAINTENANCE EXCEPT FOR CARBURETOR ADJUSTMENTS REPLACE BLADE OR DUAL LINE HEAD PARTS THAT ARE CRACKED CHIPPED OR DAMAGED IN ANY OT...

Page 21: ...eration _ver is less Clean more frequently in dusty condi Loosen the screw on the air tilter knob enough to re move the cover fromthe engine Remove air filter from cover Wash air filter in soap and water SClueeze air filter dry end replace incover Reinstall the air filter cover making sure the choke exit _lot is placed over the choke lever Air Filter Air Filter Knob Choke Lever Choke Exit Slot Cov...

Page 22: ...D Fig 32 33 34 35 36 Figure32 NOTE The line savor can become worn during use After a groove is worn into line saver _remove it from the hub turn it upside down and reinstalLit _ with spool removed to provide a now wear surface Insert the locking pin in the gearbox hole while rotat ing the cutting head until it locks Use spark plug wrench clockwise to loosen the cut ting head nut Pull apart the cov...

Page 23: ...alanced blade Balance can be checked by hanging the blade on a nailat three positionsallow ing each point to face north If the blade rotates at any time it snot balanced therefore fi e the heavier edge If abnormal vibration occurs after blade sharpen JOg stop the unit remove the blade from the unit and reChe_dk blade balance File orGrind Each Edge in the Same Manner to Maintain a Balanced Blade Fi...

Page 24: ...TECTIVE EQUIPMENTAND OBSERVE ALL SAFET_ _PRECAU TIONS_ IN LOW SPEED MIXTURE ADJUSTMENT RECHECK IDLE SPEED AFTER EACH ADJUSTMENT THE TRIMMER HEAD MUST NOT MOVE AT IDLE SPEED CARBURETOR PRESETS Fig 39 The Carburetor has three adjustingscrews L Low speed mixture adjusting screw H High speed mixture adjusting screw T Idle speed adjusting screw If your engine will not start due to suspected improper ca...

Page 25: ...m deposits during storage Add stabilizer to the gasoline in the fuel tank Orfuel storage container Always follow the mix instructions found on stabilizer container Run engine at least 5 minutes after adding stabnizer to allow the stabilizer to reach the carburetor Craftsman 40 1 2 cycle engineoil isspeciallyblended with fuel stabilizers If you do not use this SEARS oil you can add a fuel stabilize...

Page 26: ...tions 4 Install new plug check ignitionsystem 5 Clean fuel filter inspect fuel line 6 See Carburetor Adjustments 1 Clean air filter 12 See Carburetor Adjustments 1 Clean or replace air f_er 2 Clean or replace spark plugand re gap 3 See Carburetor Adjustments 4 See Inspect Muffler and spark Arrestor Screen 1 Une size incorrect 2 Incorrect spool 3 Line ireproperlywoundonto spool 4 Crowding line agai...

Page 27: ... Handle fight side Screw Handlebar Incl 14 20 cup Clip Mounting Bracket Incl 5 Throttle Handle left side Throttle Trigger Throttle Trigger Lock Handle Grip 21 24 25 26 27 28 29 3O 31 32 33 34 35 36 37 38 39 40 Part No 502 203304 502 189402 503 161302 503 200230 502 215701 503 521203 502 211101 502 212901 502 031003 502 045501 502 194601 503 200225 502 185001 503 193601 502 211101 731 231401 503 20...

Page 28: ...ever Nut Air Filter Housing Screw Fuel Cap Assy Incl 12 13 O Ring IGasket Fuel Cap Retainer Carburetor Assy Intake Pipe Support Sleeve Fuel Line Fuel Filter Screw Clip Crankcase Assy 0ncL 4 of20 Crankcase Bearing Crankshaft Rod Assy Incl 2 of 22 and 1 nf31 Heat Shield Muffler Gasket _oey Part No 26 so3 z9460i 27 503 289001 28 503 686402 29 503 414101 30 737 441000 31 503 797501 Muffler parts 40 4 ...

Page 29: ... O420S9 53O 042058 _ q0 015226 5 _3 230 tO1 _ 221011 503 2129O6 _ 0_ _ 77530 I 5O2 200601 503 142902 502 218501 502 189881 530 037357 505 305125 _ 2 218303 50_210722 Ves_i_o_ tTmci 2 ea of9 10 II SparkPlugBoot SparkPlug Screw Screw Washer Spring Starter _g Starter D_ Pin Flywheel Nut Screw Starter Pully Starter Spring Washer Air Baffie Throttle Cable Ass y Starter Handle Starter Rope Starter Housi...

Page 30: ...le Shaft Spacer 19 505 316754 MeteringDiapbragm Cover 20o 504 130808 _eringDiaphragm 21 o 505 520110 Metering Diaphragm Geske_ 22 505 316717 Screw 23 505 520127 MeteringLevex 24 530 035139 Spring 25 503 574201 Wdeh Plug 26 502 213501 Inlet Valve Seat _ 35 14 37 De_crlptfo Key Description No 128 29 3O 31 32 34 35 37 38 39 i Q i Part No 504 210050 503 61Z_01 503 612401 505 316745 501 468701 5O2 2133...

Page 31: ..._scr i rt ioa NO 503 810101 502 i75804 _o2 268_ 503 736309 503 799301 530 082400 503 811501 Blade Transport Storage Cover PlasticShield Incl Line Limlter 255mm Weed Blade 225mm Brush Blade Harness Assy Complete Metal Shield Brusheutter use O_ _r _ Manual Shield Support Plate 31 ...

Page 32: ... Hardware Contents 5 K Know Your Brushwacker 11 L Line Advancement 17 Line Umiter 8 23 Line Replacement 22 M Maintenance Schedule 20 Model Number 4 Muffler 6 21 O Operation 11 19 Ordedng Repair Parts Back Cover R Repair Parts 27 31 Ordering Back Cover S Service and Adjustments 22 24 Shield Metal 9 Plastic 8 Shoulder Harness 12 Spark Arrestor Screen 6 21 Specifications 4 Starting 19 Storage 25 T Th...

Page 33: ...o the unit All parts listed hereinmay be ordered through Sears Roebuck and Co Service Centers and most Retail Stores WHEN ORDERING REPAIR PARTS ALWAYS GIVE THE FOL LOWING INFORMATION PRODUCT GAS BRUSHWACKER MODEL NUMBER 358 798280 PART NUMBER PART DESCRIPTION Your Sears merchandise has added _aiue when you consider that Sears has service unitsnationwide staffed with Sears trained tech nicians prof...