ICS 603GC Скачать руководство пользователя страница 44

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F/N 518537 Oct 07

TITLE

603GC SERVICE MANUAL

12.4 Remove carburetor.

A Remove pulse tube.

B Remove carburetor jet cover.

C Remove carburetor from

choke linkage.

12.5 Assemble in the reverse order.

A T

orque carburetor body screws to

43 in-lbs. (5 Nm).

B T

orque supporter screw with

Loctite

242 to 43 in-lbs. (5 Nm).

12. CARBURETOR

Содержание 603GC

Страница 1: ...F N 518537 Oct 07 2007 ICS Blount Inc 603GC SERVICE MANUAL...

Страница 2: ......

Страница 3: ...7 CLUTCH RIM SPROCKET 23 8 STARTER SYSTEM 27 9 WALLWALKER 33 10 CYLINDER COVER 35 11 MUFFLER 39 12 CARBURETOR 41 13 CYLINDER PISTON 43 14 WATER HOSE 52 15 IGNITION COIL 53 16 FLYWHEEL 55 17 FRONT HAND...

Страница 4: ...separate parts attached solidly to each other Mark mating parts as a reassembly reference Keep component parts together as a group Assemble screws and nuts into appropriate subgroups When reassemblin...

Страница 5: ...G SHIM 4 71543 CYLINDER ASSEMBLY CLAMPS PISTON STOP 5 73462 MAIN BEARING DRIVER TOOL 6 71546 SHOCK ABSORBER TOOL 7 71547 SPARK TESTER 8 71548 FLYWHEEL PULLER TOOL 9 71550 LIMITER CAP REMOVAL TOOL 10 7...

Страница 6: ...h Carburetor Walbro diaphragm HDA 225 Air Filtration Canister polyester Starter Dust and water shielded Ignition Electronic speed governing water sealed Clutch Three weight single spring centrifugal F...

Страница 7: ...F N 518537 Oct 07 2007 ICS Blount Inc TITLE 603GC SERVICE MANUAL 5 3 SERIAL LOCATION 3 603GC Cut Off serial number series...

Страница 8: ...not related to the key numbers in the 603GC Replacement Parts Price List KEY DESCRIPTION TORQUE LOCTITE PART NUMBER Nm in lbs 242 6 WRIST PIN NEEDLE BEARING 505403 11 CYLINDER BLOCK BOLT WASHER 1 1 95...

Страница 9: ...CRANKCASE DOWEL PIN 73281 4 CHOKE LEVER 505409 5 BAR MOUNTING STUD 509555 6 CRANKCASE GROMMET 505408 7 WASHER 73897 9 BAR MOUNT PAD COVER PLATE 505467 12 CRANKCASE GASKET 505440 13 CHOKE LEVER BUSHIN...

Страница 10: ...PIN NEEDLE BEARING 505403 7 CRANKSHAFT ASSEMBLY 505397 KEY DESCRIPTION TORQUE LOCTITE PART NUMBER Nm in lbs 242 8 CLUTCH SPRING 505434 10 CRANKCASE SEAL RETAINER 505423 11 CRANKSHAFT SEAL 505381 14 C...

Страница 11: ...TITE PART NUMBER Nm in lbs 242 1 MUFFLER SUPPORT BRACKET SCREW 0 9 78 X 73885 2 SERRATED WASHER 73327 3 MUFFLER SUPPORT BRACKET 505392 4 MUFFLER MOUNTING SCREW 1 0 87 73883 5 SCREW 0 4 35 71482 6 WASH...

Страница 12: ...INTAKE MANIFOLD 505383 21 CARBURETOR PULSE TUBE 73898 32 CARBURETOR SPRING 73888 36 WASHER 73897 38 CARBURETOR ATTACHMENT SCREW 0 5 43 X 73902 49 OUTER INTAKE MANIFOLD FLANGE SCREW 0 4 35 X 73901 54...

Страница 13: ...REW 0 9 78 X 73982 10 WASHER 73897 11 FRONT HANDLE BOLT 0 8 69 X 73983 12 FRONT HANDLE 505424 13 FUEL FILTER 73459 14 FUEL LINE 73375 15 FUEL CAP O RING 73448 16 TRIGGER LOCKOUT LEVER 73987 17 TRIGGER...

Страница 14: ...E MANUAL 12 4 SPARE PARTS DIAGRAM KEY DESCRIPTION TORQUE LOCTITE PART NUMBER Nm in lbs 242 31 FLYWHEEL SHROUD 505438 45 FLYWHEEL 505399 48 NUT 3 0 260 73891 51 WAVE WASHER 73911 57 PLAIN WASHER 73912...

Страница 15: ...WASHER 4 5mm 73285 40 SPARK PLUG CAP SPRING KIT 73241 41 SPARK PLUG SPRING 73917 43 IGNITION TOGGLE CABLE 73919 44 IGNITION COIL 505426 47 SWITCH IGNITION TOGGLE 73237 53 SCREW 0 7 61 X 73914 56 PLAI...

Страница 16: ...6 26 STARTER ROPE HANDLE 505514 27 STARTER ROPE 508854 30 STARTER PULLEY SCREW 0 6 52 X 73907 34 RECOIL HOUSING SCREW 505380 35 STARTER PULLEY WASHER 73905 37 STARTER ROPE PULLEY 508857 42 STARTER ASS...

Страница 17: ...EW 73992 5 FILTER SUPPORT 73338 6 FILTER COVER GASKET 71756 7 CYLINDER COVER SCREW 0 5 43 X 505429 8 PREFILTER PLASTIC SECONDARY FILTER 73336 9 AIR FILTER FLANGE 71758 10 FILTER SUPPORT SCREW 0 3 26 X...

Страница 18: ...ART NUMBER Nm in lbs 242 1 HOSE CLAMP 71465 2 WATER HOSE 509488 3 WATER HOSE COVER 71464 4 HOSE HANGER 71461 5 WATER SHUT OFF VALVE 71458 6 WATER HOSE O RING 71468 7 RING NUT 71457 8 FITTING 71467 19...

Страница 19: ...NUT 505468 12 SCREW 0 5 43 73982 13 GUARD FLAP MOUNTING BRACKET BACK 505490 14 GUARD FLAP MOUNTING BRACKET FRONT 505491 15 GUARD FLAP SCREW 71479 16 GUARD FLAP 505492 17 RUBBER BUMPER COVER 73310 18 S...

Страница 20: ...c F N 518537 Oct 07 TITLE 603GC SERVICE MANUAL 18 4 SPARE PARTS DIAGRAM KEY DESCRIPTION TORQUE LOCTITE PART NUMBER Nm in lbs 242 ABOVE CARBURETOR WALBRO HDA 225 517742 CARBURETOR REPAIR KIT 505441 CAR...

Страница 21: ...and assembly air induction system 5 1 Loosen the air filter cover screws and remove air filter cover 5 2 Remove air filter from cover A Inspect air filter B Replace if necessary P N 71752 5 3 Remove...

Страница 22: ...GC SERVICE MANUAL 20 5 AIR INTAKE 5 4 Inspect air filter cover gasket A Replace if permanently depressed or hard due to slurry 5 5 Inspect filter cannister gasket A Clean B Replace if necessary 5 6 Se...

Страница 23: ...tion and installation of the spark plug 6 1 Remove the spark boot taking care not to pry or damage the wire 6 2 Clean area around the spark plug to prevent debris from entering the cylinder 6 3 Remove...

Страница 24: ...AL 22 6 SPARK PLUG B Gap if necessary to 0 02 0 5 mm NOTE If the spark plug must be replaced refer to the Spark Plug Reference Guide on page 81 to select the correct replacement plug 6 5 Assemble in t...

Страница 25: ...sprocket removal inspection and assembly Refer to sections 5 and 6 if needed 7 1 Insert piston stop tool into spark plug hole 7 2 Pull starter handle until piston stops against tool 7 3 Remove clutch...

Страница 26: ...37 Oct 07 TITLE 603GC SERVICE MANUAL 24 7 CLUTCH RIM SPROCKET 7 4 Remove all drive components 7 5 Inspect the clutch shoes for wear A Replace if the shoe has less than 0 04 1 mm of material as shown 7...

Страница 27: ...RVICE MANUAL 25 7 CLUTCH RIM SPROCKET 7 7 Assemble clutch A Insert top edge of clutch shoe over spring as shown B Snap clutch shoe into place 7 9 Inspect the rim sprocket for wear A Replace if the rim...

Страница 28: ...ROCKET 7 10 Clean and assemble A Clean all parts in solvent B Grease clutch cup bearing with a water proof grease ICS P N 70885 C Assemble clutch spacer washer bearing clutch cup with rim sprocket and...

Страница 29: ...ment of the recoil spring 8 1 Remove starter cover screws 8 2 Remove starter cover assembly from saw 8 3 Remove starter cord shield screws 8 4 Relieve spring tension A Pull 4 6 10 15 cm of rope out B...

Страница 30: ...pulley A Remove pulley screw 8 7 Inspect coil spring A Replace if spring hook is damaged Attempting to re bend the spring hook may cause the hook to break off B Carefully remove coil spring and housin...

Страница 31: ...stall starter rope and tie knot 8 12 Knot tying instructions A Make a loop at the end of the pulley rope with the end of the rope crossing on top of the tail B Bring the end of the rope through the lo...

Страница 32: ...e leaving 4 6 out B Make sure that the pulley spring catch is in the spring hook 8 14 Install center screw A Use Loctite 242 B Torque to 26 in lbs 2 9 Nm 8 15 Wind the recoil spring A Line rope up wit...

Страница 33: ...n pawl components A Inspect the components Replace if necessary B Clean the components with a brush and solvent 8 19 Assemble components A Make sure the spring is in the correct position B Use Loctite...

Страница 34: ...2007 ICS Blount Inc F N 518537 Oct 07 TITLE 603GC SERVICE MANUAL 32 8 STARTER 8 21 Install starter cover screws A Use Loctite 242 B Torque to 60 in lbs 7 Nm...

Страница 35: ...UAL 33 9 WALLWALKER 9 This section covers the removal inspection and assembly of the rubber padded wallwalker and guard flap 9 1 Inspect bumpers A Replace if worn 9 2 Remove side cover assembly 9 3 Re...

Страница 36: ...9 WALLWALKER 9 5 Remove and inspect guard flap A Replace the flap if it is torn or damaged in any way 9 6 Remove guard flap screws and washers 9 7 Reassemble in the reverse order A Install crankcase s...

Страница 37: ...screws NOTE May require heat to remove screws 10 2 Remove the cylinder cover screws 3 10 3 Remove spark plug boot from cylinder cover taking care not to pry or damage the wire 10 4 Remove fuel tank b...

Страница 38: ...3GC SERVICE MANUAL 36 10 CYLINDER COVER 10 7 Remove stop switch leads 10 8 Inspect cylinder cover for damage A Replace if necessary 10 9 Check filter cover gasket A Replace if necessary 10 10 Check cy...

Страница 39: ...w boot is in place 10 13 Install cylinder cover A Pull spark plug lead into slot in cylinder cover B Lubricate compensating tube 1 and fuel tank breather tube 2 with soapy water guide through cylinder...

Страница 40: ...e Loctite 242 Torque to 35 in lbs 4 0 Nm 10 14 Install air filter mount A Guide carburetor compensating tube through air filter mount Make sure manifold sits flat over lip on cylinder cover B Install...

Страница 41: ...the muffler Removal of the bumpers and cylinder cover is necessary Refer to sections 9 and 10 if necessary 11 1 Remove muffler support screws 11 2 Remove muffler screws 2 note there are two screws an...

Страница 42: ...ffler screws in place with heat shield gasket C Thread muffler screws into cylinder torque to 78 in lbs 9 Nm 11 5 Install muffler support A Install top 3 muffler support screws and serrated washer fin...

Страница 43: ...uning is covered in section 22 12 1 Remove throttle linkage A Push trigger end out of rear handle B Pivot linkage around C Remove carburetor end of linkage from throttle rod tab on carburetor NOTE All...

Страница 44: ...Remove carburetor A Remove pulse tube B Remove carburetor jet cover C Remove carburetor from choke linkage 12 5 Assemble in the reverse order A Torque carburetor body screws to 43 in lbs 5 Nm B Torqu...

Страница 45: ...required Refer to sections 5 6 10 and 12 if necessary 13 1 Remove carburetor base screws A Remove carburetor base bracket from rear manifold B Remove carburetor base bracket from pulse tube 13 2 Remo...

Страница 46: ...C SERVICE MANUAL 44 13 3 Remove rear manifold clamp 13 4 Remove rear manifold from cylinder A Inspect for holes and tears 13 5 Remove cylinder screws 4 and wave washers 13 6 Remove cylinder A Remove c...

Страница 47: ...ount Inc TITLE 603GC SERVICE MANUAL 45 13 7 Remove wrist pin retaining clips 2 13 8 Press wrist pin out with an 8 mm deep socket 13 9 Remove piston and inspect Replace if damaged 13 10 Remove wrist pi...

Страница 48: ...Assemble cylinder gasket A Oil gasket with ICS 2 stroke engine oil B Install and align holes and notch 13 12 Install wrist pin bearing in rod A Oil bearing with ICS 2 stroke engine oil 13 13 Install r...

Страница 49: ...etaining clip is in the proper orientation Improper installation may result in serious engine damage NOTE Never attempt to reuse wrist pin retaining clips or substitute wrist pins from another model o...

Страница 50: ...ect orientation A Make sure arrow points to exhaust port 13 19 Install piston A Oil piston with ICS 2 stroke oil B Align wrist pin with wrist pin bearing C Complete wrist pin installation D Install se...

Страница 51: ...s with ring compression tool C Slide cylinder onto piston pushing ring compression tool down 13 21 Install cylinder A Remove ring compression tool B Slide cylinder down piston and into crankcase C Ali...

Страница 52: ...eams of intake boot with casting seams of the cylinder 13 24 Install rear manifold clamp A Torque to 11 in lbs 1 Nm NOTE Insure that the intake boot is properly installed DO NOT OVER TIGHTEN INTAKE BO...

Страница 53: ...base A Slip pulse tube into carburetor base B Slip rear manifold into carburetor base C Make sure rear manifold lip is flat 13 28 Install carburetor base screws A Use Loctite 242 on screws 3 B Make s...

Страница 54: ...e and side cover 14 1 Inspect water hose and side cover A Replace if damaged 14 2 Assemble in reverse order 14 3 Remove water hose connector from side cover A Remove clamp and hose from fitting B Unth...

Страница 55: ...emoval of the starter is required Refer to section 8 if necessary 15 1 Remove starter flywheel shroud by unhooking wires 15 2 Remove ignition coil screws wave washers and plain washers 15 3 Remove ign...

Страница 56: ...e C Install ignition coil screws wave washers and plain washers with Loctite 242 Holding shim rotate flywheel magnet around to coil E Torque ignition coil screws to 26 in lbs 3 Nm F Remove shim rotate...

Страница 57: ...f the flywheel Removal of spark plug and the starter is required Refer to sections 6 and 8 if necessary 16 1 Insert piston stop 16 2 Remove flywheel nut wave washer and plain washer 16 3 Screw on flyw...

Страница 58: ...removal tool with a ball peen hammer The flywheel should release from crankshaft 16 6 Inspect and clean flywheel Replace if any of the fins are broken 16 7 Inspect cast woodruff key inside the flywhe...

Страница 59: ...removal inspection and installation of the front handle 17 1 Remove front handle screws on right side 17 2 Remove front handle screws on bottom 17 3 Install front handle A Roll front handle into plac...

Страница 60: ...ction covers the disassembly inspection and assembly of the vibration isolaters fuel tank and rear handle 18 1 Remove vibration isolator screws 2 and wave washers on clutch side of saw 18 2 Remove vib...

Страница 61: ...d fuel tank NOTE Saws have a rubber water deflector connected to the 2 bottom vibration isolators on the clutch side circled 18 4 Remove vibration isolators 4 from fuel tank if necessary 18 5 Assemble...

Страница 62: ...603GC SERVICE MANUAL 60 19 This section covers the disassembly inspection and assembly of the crankcase seals and crankshaft bearings 19 1 Remove outer crankshaft seal housing screws and wave washers...

Страница 63: ...minutes approximately 150 F 65 5 C 19 4 Remove the flywheel side crankcase tap crankshaft with plastic mallet A Suspend above work surface B Tap with mallet NOTE A nut should always be placed on a th...

Страница 64: ...rankcase Heat the clutch side crankcase with heat gun to 150 F 65 5 C 19 7 Remove crankshaft from the clutch side crankcase tap crankshaft with a plastic mallet A Suspend above work surface B Tap with...

Страница 65: ...9 9 Remove the bearing seal and bushing from the clutch side of crankshaft 19 10 Assembly of crankcase A Clean mating crankcase faces 19 11 Heat crankcase halves to 150 F 19 12 Install bearing into cr...

Страница 66: ...37 Oct 07 TITLE 603GC SERVICE MANUAL 64 19 14 Repeat with other half 19 15 Install crankshaft into clutch side of case 19 16 Place clutch side crankcase seal on crankshaft A Tap lightly with bearing d...

Страница 67: ...nt Inc TITLE 603GC SERVICE MANUAL 65 19 17 Coat crankcase gasket with ICS 2 stroke engine oil 19 18 Align crankcase gasket on flywheel side crankcase pins 19 19 Place crankcase halves together and ali...

Страница 68: ...SERVICE MANUAL 66 19 20 Assemble crankcase halves tap with bearing driver and mallet 19 21 Install crankcase bolts A Use Loctite 242 B Torque to 69 in lbs 8 Nm 19 22 Install flywheel side crankcase se...

Страница 69: ...Oct 07 2007 ICS Blount Inc TITLE 603GC SERVICE MANUAL 67 19 23 Assemble in reverse order A Install outer crankshaft seal housing with 3 bolts and use Loctite 242 19 24 Trim crankcase gasket flush 19...

Страница 70: ...n of the bar studs and bar pad 20 1 On 603GC saws NOTE This requires the removal of the piston and cylinder and to split the crankcase Refer to section 13 19 for detailed instructions A Remove side co...

Страница 71: ...n of the chain tensioner 21 1 Remove bar plate to expose the chain tensioner 21 2 Unscrew tensioner to remove A Remove tensioner pin B Remove tensioner screw keeper 21 3 Assemble in reverse order NOTE...

Страница 72: ...manual to adjust carburetor to factory recommended settings DO NOT adjust the carburetor for maximum rpm Adjusting the carburetor for maximum rpm will cause engine damage Always set the carburetor je...

Страница 73: ...bserve orientation of the release slots on the adjustment screw limiter cap B Insert the limiter cap puller blades into the release slots C Firmly hold the tool shaft while screwing in the puller scre...

Страница 74: ...ry 22 5 Start the saw and warm up the engine 22 6 With a tachometer check the saw rpm with bar and no chain A Idle 3 000 300 rpm B If the idle rpm does not fall into this range adjust the T screw cloc...

Страница 75: ...7 2007 ICS Blount Inc TITLE 603GC SERVICE MANUAL 73 22 9 When the carburetor is adjusted correctly set the limiter caps as shown with a 1 4 straight blade screwdriver A L vertical B H horizontal 22 CA...

Страница 76: ...on covers idle speed adjustment 23 1 If engine stops while idling A Make sure the chain is properly tensioned B Turn T screw clockwise until chain begins to move C Back T screw out turn 23 2 If chain...

Страница 77: ...too high Broken clutch spring Excessive vibration YES Damaged shock absorber Damaged or broken flywheel fins Bent crankshaft Replace shock absorbers Replace flywheel Replace crankshaft Adjust idle sp...

Страница 78: ...Fuel is old varnished or contaminated Empty tank and re fill with fresh fuel of the correct mixture 25 1 Loose spark plug If below 125 psi excess wear on the piston cylinder rings Tighten plug and re...

Страница 79: ...re the fuel tank fuel tank breather fuel filter delivery tubes and carburetor 25 1 Remove and inspect the fuel filter A Replace the fuel filter if there is any foreign material in the felt or the inte...

Страница 80: ...o Diaphragm Carburetor Service Manual 25 3 The fuel tank breather stabilizes the pressure in the fuel tank preventing both excessive pressure which could flood the engine and negative pressure which c...

Страница 81: ...o 0 psi disassemble or replace the breather A Disassemble by snapping off cap B Clean parts with solvent or fuel 25 7 Assemble in reverse order A Make sure duck bill opens easily B Make sure that the...

Страница 82: ...intake seal flange A Plug cylinder pulse tube 26 2 Install the exhaust seal flange 26 3 Block one of the flange tubes with a rubber plug 26 4 Install the pressure gauge and bulb 26 5 Pressurize the cr...

Страница 83: ...k Plug Reference Guide is to be used as a guide only When trying a plug from a different manufacturer perform a plug check to be sure that the plug will work SPARK PLUG REFERENCE GUIDE ICS RESISTOR CH...

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Страница 86: ...2007 ICS Blount Inc F N 518537 Oct 07 ICS Blount Inc 4909 SE International Way Portland OR 97222 Tel 800 321 1240 Fax 503 653 4393 icsbestway com 603GC SERVICE MANUAL...

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