SERVICE DATA
Contents
1. Key Part Number Description Used for 1 Tachometer Measuring engine speed to adjust carburetor 2 895610 79920 L hex wrench 4 mm Removing and installing hex socket bolt M5 3 897501 03938 Puller Removing flywheel 4 897505 16133 Clutch tool Removing and installing clutch assembly 5 897537 30130 Piston stopper Locking crankshaft rotation 6 897563 19830 Metering lever gauge Measuring metering lever height on carburetor 7 Removing crankshaft ball bearings 8 Removing and installing piston pin Use 8 mm dia adapter 9 Removing worm of auto oiler 10 Installing worm of auto oiler Use smallest adapter 11 Removing and installing spring pin 4 mm or 5 32 in dia 12 13 14 15 16 17 18 897835 16131 Pressure connector Testing crankcase and cylinder leakages CS 3000 CS 3050 r CS 3400 CS 3450 SERVICE HINT 2 SERVICE HINT 2 1 Installing fuel pipes and grommet 1 Preassemble fuel return pipe A fuel pipe B and vent pipe C to the grommet as shown D 5 mm 0 2 in E 23 mm 0 9 in F 5 mm 0 2 in 2 Install the grommet together with pipes so that vent pipe C faces rear engine side 2K310 2K311 2 2 Installing new oil pipe and grommet PESSA 1 Insert new oil pipe to the grommet as shown A 62 to 68 mm 2 45 to 2 65 in 2 Apply an adhesive Loctite 424 or equivalent adhesive for synthetic rubber on the grommet bore 62. 00 30 03 CS 3000 CS 3050 CS 3400 CS 3450 1 UUELGHE SERVICE DATA CHAIN SAW CS 3S000 CS 3050 CS 3400 CS 3450 INTRODUCTION CONTENTS page We are constantly working on technical 1 SERVICE INFORMATION n 2 improvement of our products For this reason 1 1 Specifications See eset aby sesie E E AT 2 technical data equipment and design are subject to 1 2 Technical data 00 ceecccceeseeeeeeeseeeneees 3 change without notice All specifications 1 3 Carburetor data 2 0 cccecceeceseeeeeeeeeeeeees 3 illustrations and directions in this SERVICE DATA 1 4 Torque limits 0 0 ccececececeeseeeeeeeeeeeeaes 4 are based on the latest products information 1 5 Special repairing materials acces 4 available at the time of publication 1 6 Service limits 2 0 eecceeceeeeeseeeeeeeee eee es 5 For further information to service these models 1 7 Special OOO aenevtransanteanenmentenreeticeueracrn 6 please refer to ECHO SERVICE MANUAL Ord No 401 20 2 SERVICE HINT aaiae 7 2 1 Installing fuel pipes and grommet 7 2 2 Installing new oil pipe and grommet 7 2 3 Checking reed valve eese 8 2 4 Replacing brake lever fasteners 8 Remarks Reference No 00 30A 03 Please use this revised edition Reference No 00 30A 03 REVISED 199902 and discard all previous issues Issued 199204 y E KIORITZ CORPORATION Printed in Japan INDEX 2 SERVICE INFORMATION CS 3000 CS 3050 CS 3400 CS 3450 1 SERVICE INF
3. K270 8 CS 3000 CS 3050 SERVICE HINT CS 3400 CS 3450 2 3 Checking reed valve 1 Check reed valve for damage crack or warp or if it lifts off from insulator 2 If the lift is A more than 0 3 mm 0 012 in remove two screws to clean dust or dirt under reed valve 3 Retighten two screws securing reed valve and the retainer to 8 to 12 kgf cm 7 to 10 inelb 4 Replace insulator and reed valve as a set if defective 2 4 Replacing brake lever fasteners NOTE Always use two spacers A screw B ao and lock nut C to secure brake lever even if A other type fasteners are originally used A 4383167 39130 B 900209 05030 1 Insert two spacers A to both side of brake lever pivot part respectively 2 Insert screw B through the spacers and sprocket guard 3 Tighten the screw with lock nut C NOTE Fastening torque should be 30 to 40 kgf cm 25 to 35 inelbf
4. ORMATION 1 1 Specifications Model CS 3000 CS 3050 CS 3400 CS 3450 Dimensions Length mm in 260 10 2 380 15 0 260 10 2 380 15 0 Width mm in 230 9 1 230 9 1 230 9 1 230 9 1 Height mm in 220 8 7 245 9 6 220 8 7 245 9 6 Dry weight kg Ib 3 2 7 1 3 3 7 3 3 3 7 3 3 4 7 5 Engine Type KIORITZ air cooled two stroke single cylinder Two piece casting Reed valve Rotation Clockwise as viewed from the output PTO end Displacement cms ins 30 1 1 836 33 4 2 037 Bore mm in 37 0 1 457 39 0 1 535 Stroke mm in 28 0 1 102 28 0 1 102 Compression ratio 7 0 1 7 0 1 Carburetor Type Diaphragm Walbro WT type Ignition Type CDI Capacitor discharge ignition system in a single integrated piece Spark plug BPMR7A BPM7A CJ 7Y Starter Type Automatic rewind Rope diameter x length mm in 3 0 x 850 0 12 x 33 5 Fuel Type Premixed two stroke fuel Refer to operator s manual Tank capacity cms U S fl 0z 250 8 5 Clutch Type Centrifugal 3 shoe slide Guide bar Saw chain lubrication type Automatic with volume adjuster Tank capacity oil cm U S fl 0z 150 5 0 Handles Location Front Top Front Rear Front Top Front Rear Sprocket Type Spur Number of teeth 6 Pitch in 3 8 Cutting devices North America Guide bar Type 12A0CD3745 14A0CD3752 16A0CD3757 Called leng
5. g sealant 1 5 Special repairing materials Material Adhesive Grease Liquid gasket Thread locking sealant Location Ball bearing outer crankcase Oil pipe grommet Auto oiler worm Clutch needle bearing Rewind spring Brake band seal Chain brake metal contact part Crankcase seams Starter pawl screws Ignition coil CDI module screws Auto oiler screw Remarks Loctite Retaining Compound 675 or equivalent Loctite Instant Adhesive 424 or equivalent Lithium based grease Molybdenum grease approx 1 gram Loctite 518 or equivalent Loctite 222 or equivalent CS 3000 CS 3050 CS 3400 CS 3450 SERVICE INFORMATION 5 1 6 Service limits A B C D Model A Cylinder bore B Piston outer diameter mm in Min C Piston pin bore m in D Piston ring groove m in 3 3 E Piston ring side clearance mm in F Piston pin outer diameter mm in G Piston ring width mm in 1 15 0 045 1 45 0 571 P Sprocket wear limit mm in Max ae CS 3000 CS 3050 CS 3400 CS 3450 When plating is worn and aluminum can be seen 36 91 1 453 38 91 1 532 8 030 0 3161 1 3 0 051 1 6 0 15 0 006 0 1 7 98 0 3142 0 063 0 004 0 5 0 02 11 025 0 4341 0 05 0 002 13 08 0 5150 61 0 2 40 0 5 0 02 6 CS 3000 CS 3050 SERVICE INFORMATION CS 3400 CS 3450 1 7 Special tools
6. n in 2 2 H needle initial setting turn back 1 1 4 1 1 8 L needle initial setting turn back 1 1 4 1 1 8 1 Test Pressure minimum kgt cm psi 0 5 7 0 Metering lever height mm in 1 65 0 65 lower than diaphragm seat Applicable model CS 3000 CS 3050 CS 3450 CS 3400 CS 3050 CS 3000 CS 3000 CS 3450 CS 3400 CS 3050 CS 3400 CS 3450 H needle High speed needle L needle Idle needle 4 CS 3000 CS 3050 SERVICE INFORMATION CS 3400 CS 3450 1 4 Torque limits Descriptions kgfecm inelbf Crankcase 30 40 25 35 Engine mount 80 90 70 80 Carburetor 35 45 30 40 Insulator 40 50 35 45 Reed valve 8 12 7 10 Clutch hub 200 230 175 200 Flywheel 120 140 105 120 Ignition coil CDI module 30 40 25 35 Ignition switch 20 30 17 25 Spark plug 150 170 130 150 Starter pawl 30 40 25 35 Starter case M 25 35 20 30 Muffler M 60 70 50 60 Isolator Front M 20 30 17 25 M 5 35 45 30 40 Rear M 4 25 35 20 30 Auto oiler M 5 30 40 25 35 Throttle latch M10 6 8 5 7 Front handle top M 5 30 40 25 35 Brake lever hand guard M 5 30 40 25 35 Guide bar M 6 90 110 80 95 Regular bolt nut M 3 6 10 5 9 and screw M 4 15 25 13 22 M 5 25 45 22 40 M 6 45 75 40 65 LM Left hand thread Tapping screw See 2 4 Replacing brake lever fasteners on page 8 t Apply thread lockin
7. th in 12 14 16 Gauge in 0 050 Saw chain Type 91SG 45X 91SG 52X 91SG 57X Pitch in 3 8 Low profile Gauge in 0 050 Cutting devices Other than North America Guide bar Type 30RC50 3 8 35RC50 3 8 40RC50 3 8 Called length cm 30 35 40 Gauge in 0 050 Saw chain Number of drive links 47 53 Pitch in 3 8 Low profile Gauge in 0 050 Without guide bar and saw chain CS 3000 CS 3050 Go CS 3400 CS 3450 SERVICE INFORMATION 1 2 Technical data Model CS 3000 CS 3050 CS 3400 CS 3450 Engine Idling speed rom 2700 3300 Operating speed rom 6500 9000 High speed No load full throttle rom 11000 12000 Clutch in speed rpm Compression pressure standard kgf cm psi Spark plug gap mm in 0 6 0 7 0 024 0 028 Minimum secondary voltage kv Secondary coil resistance ko Pole shoe air gaps mm in 0 3 0 4 0 012 0 016 Ignition timing at 1500 rpm BTDC 27 29 27 11 at 3000 rom BTDC 27 29 27 12 5 at 7500 rom BTDC 27 29 27 26 Chain oil discharge volume at 7000 rpm cm min U S fl oz min 1 5 13 0 05 0 45 adjustable BTDC Before top dead center With guide bar and saw chain 1 3 Carburetor data Carburetor Model WT 248 WT 254 WT 261 WT 271 WT 381 WT 385 WT 385A Supplier amp Type Walbro Diaphragm horizontal draught Venturi Size mm in 9 53 3 8 11 11 3 8 9 53 3 8 Throttle Bore mm in 15 85 5 8 15 85 5 8 14 3 9 16 Idle speed screw initial setting tur
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