1 - Echo
Contents
1. SERVICE INFORMATION CS 270WES 1 3 Torque limits Descriptions Size kgf cm Nem inelbf Starter Starter pawl M5 40 60 4 6 35 50 system Starter case Ma 10 20 1 2 9 18 Ignition Magneto rotor Flywheel M8 160 200 16 20 140 175 system Ignition coil M5 30 45 3 0 4 5 26 40 Spark plug M14 130 170 13 17 115 150 Fuel Carburettor M5 30 45 3 0 4 5 26 40 system intake bellows M5 35 50 3 5 5 0 30 44 Clutch Clutch hub LM 10 230 260 23 26 200 230 Engine Crankcase M5 55 95 5 5 9 5 48 83 Engine mount M5 70 110 7 11 60 95 Dust cover Only CS 260TES M4 10 20 1 2 9 18 Muffler M5 70 100 7 10 60 90 Muffler cover M4 10 20 1 2 9 18 Others Auto oiler M4 15 25 1 5 2 5 13 22 Front handle M5 20 40 2 4 18 35 CS 260TES M4 10 20 1 2 9 18 CS 270WES M4 8 12 0 8 1 2 7 10 Top handle CS 260TES M4 10 20 1 2 9 18 Rear handle CS 270WES M4 10 20 1 2 9 18 Top handle assembly M4 20 30 2 3 18 26 CS 260TES Rear handle assembly M4 20 30 2 3 18 26 CS 270WES Brake lever Hand guard M5 25 45 2 5 4 5 22 40 Chain catcher M5 20 40 2 4 18 35 Guide bar stud M8 180 250 18 25 130 220 Guide bar M8 200 230 20 23 175 200 Regular bolt nut and screw M3 6 10 0 6 1 0 5 9 M4 15 25 1 5 2 5 13 22 M5 25 45 2 5 4 5 22 40 M6 45 75 4 5 7 5 40 65 LM Left hand thread Apply thread locking sealant See next p2. C After adjusting carburettor according to the steps 2 2 and 2 3 the limiter cap s must be installed on L and or H mixture needle s to comply with Emission Directive 2 2 Presetting idle adjust screw L mixture needle and H mixture needle Tools Required Small screwdriver with 2 5 mm blade electronic tachometer P N 897801 33330 limiter cap removal tool with 2 5 mm left hand thread P N 91019 Parts Required 2 limiter caps P N P003 000010 1 Turn the L and H mixture needles anticlockwise to rich side stop and meet limiter caps tabs A with locating slot B using 3 mm blade screw driver 2 Screw left hand thread of limiter cap tool 91019 into centre hole of limiter cap anticlockwise until tab of the limiter cap just come out from locating slot NOTE If cap tabs A misalign with locating slots B there is a chance to strip thread When the thread is stripped by limiter cap tool screw 3 mm wood screw in the stripped centre hole of the lim iter cap and pull off the cap continued CS 260TES CS 270WES SERVICE INFORMATION 9 2 2 Presetting idle adjust screw L mixture needle and H mixture needle continued 3 Remove the limiter cap tool from the limiter cap turning the tool clockwise as the limiter cap is re mained there NOTE If the limiter cap were pulled out complete ly there is a chance that the other mixture needle would turn and limiter cap tab would misa
3. 00 r min and at WOT engine speed in the range of 11 500 to 12 500 r min Also make it sure chain would not turn at engine idle speed and suitable acceleration NOTE Initial carburettor setting Idle adjust screw L and H mixture needles shown here is to start the engine after restoration or carburettor change Idle adjust screw L and H needles turn for designated engine revolution through procedures indicated here may vary As long as idle and WOT engine speed is set in given range variance would be ig norable
4. 00 26C 01 1 UUECHE SERVICE DATA CHAIN SAW Cs 260TES Cs 270WES Serial number 36000001 and after INTRODUCTION CONTENTS age We are constantly working on technical im 1 SERVICE INFORMATION 00000 n provement of our products For this reason 1 1 Specification issin in 2 technical data equipment and design are 1 2 Technical d la isisisi isiin 3 subject to change without notice All speci 1 3 Torque liMits cccccccseesseeseeeeeeeeeeeeeeeeees 4 fications illustrations and directions in this 1 4 Special repairing materials c c 5 SERVICE DATA are based on the latest 1 5 Service Mani ee E E A A A 6 1 6 Special tools cccccessssesseessseeeeeeeeeeeeeeeees 7 products information available at the time of publication ECHO SERVICE MANUAL Ord 2 CARBURETTOR ADJUSTMENT PROCEDURE 8 2 1 General adjusting rules wees 8 401 22 Model CS 2600 contains lots of 2 2 Presetting idle adjust screw L mixture needle information for servicing this model and H mixture needle cccccccecsccsseseseeeseeees 8 2 3 Adjusting carburettor eee 10 Reference No 00 26C 01 REVISED 200804 ISSUED 200703 KIORITZ CORPORATION 2 CS 260TES SERVICE INFORMATION CS 270WES 1 SERVICE INFORMATION 1 1 Specifications Model CS 260TES CS 270WES Dimensions Length mm in 257 10 1 380 1
5. 20 N Clutch drum bore Max 55 5 2 19 P Sprocket wear limit Max 0 5 0 02 CS 260TES CS 270WES SERVICE INFORMATION 1 6 Special tools 2 a 3mm 3 a 4mm 11 15 allie Key Part Number Description Used for 1 897801 33330 Tachometer PET 1000 Measuring engine speed to adjust carburettor 2 895612 79920 L hex wrench 3 mm Removing and installing hex socket bolt M4 3 895610 79920 L hex wrench 4 mm Removing and installing hex socket bolt M5 4 897559 02831 T hex wrench 4 mm Removing and installing hex socket bolt M5 5 897501 03938 Puller Removing magneto rotor 6 897702 30131 Piston pin tool Removing and installing piston pin 7 897701 06030 Bearing wedge Removing and crankshaft ball bearings 8 897705 11520 Bearing tool Replacing needle bearing on con rod small end 9 897563 19830 Metering lever gauge Measuring metering lever hight on carburettor 10 897708 19835 Worm puller Removing auto oiler worm 11 YO89 000010 Worm inserter Installing auto oiler worm 12 897726 09130 Oil seal tool Installing oil seals 13 897800 79931 Spark tester Checking ignition system 14 897803 30132 Pressure tester Testing carburettor and crankcase leakage 15 X640 000011 Clutch tool Removing and assembling clutch assembly 16 897826 16131 Pressure rubber plug Pluggin
6. 5 0 Width mm in 219 8 6 220 8 7 Height mm in 210 8 3 230 9 1 Dry weight kg Ib 2 9 6 3 3 1 6 8 Engine Type KIORITZ air cooled two stroke single cylinder Rotation Clockwise as viewed from the output end Displacement em in 26 9 1 641 Bore mm in 35 1 378 Stroke mm in 28 1 102 Compression ratio 6 4 Carburettor Type Diaphragm horizontal draught with auto return choke Model Walbro WT 843 WT 845 Venturi size Throttle bore mm in 9 53 14 3 0 375 0 563 Ignition Type Digital Magneto CDI system Spark plug BPMR 7A Starter Type ES Effortless start Rope diameter x length mm in 3 5 x 750 0 14 x 29 5 Fuel Type Premixed two stroke fuel Mixture ratio 50 1 2 Petrol Minimum 89 octane petrol RON Two stroke air cooled engine oil ISO L EGD ISO CD13738 JASO FC Tank capacity L U S fl 0z 0 24 8 1 Clutch Type Centrifugal 3 shoe slide with 3 tension spring Guide bar Saw chain lubrication type Automatic with volume adjuster Oil Tank capacity L U S fl 0z 0 16 5 4 Auto oiler Type clutch related type Sprocket Type Spur Number of teeth 6 Sproket nose bar 8 for Carving bar Pitch in 3 8 Sproket nose bar 1 4 for Carving bar Without guide bar and saw chain Cutting devices Sproket nose bar Carving Guide bar Type 20RC50 3 8 25RC50S 3 8 30RC50M 3 8 25C50 Called length cm 20 25 30 25 Gauge in 0 050 Saw chain Number of drive l
7. age Tapping screw The torque differences among four bolts should not exceed 20 kgf cm 2Nm 17inslbf on one cylinder or crankcase CS 260TES CS 270WES SERVICE INFORMATION 1 4 Special repairing materials Material Location Remarks Adhesive Ball bearing outer crankcase Loctite 675 or equivalent Liquid gasket Crankcase seams Loctite 515 990610 00051 or equivalent Thread locking sealant Starter pawl screws Loctite 242 Three bond 1324 or equivalent Ignition coil Crankcase bolts Loctite 222 Three bond 1342 or equivalent Grease Auto oiler worm Clutch needle bearing Rear handle cushion Rewind spring Starter center shaft Lithium based grease Chain brake metal contact part Molybdenum grease approx 1 gram 6 SERVICE INFORMATION CS 260TES CS 270WES 1 5 Service Limits mm in A Cylinder bore When plating is worn and aluminium can be seen B Piston outer diameter Min 34 91 1 374 C Piston pin bore Max 8 030 0 3161 D Piston ring groove Max 1 6 0 063 E Piston ring side clearance Max 0 1 0 004 F Piston pin outer diameter Min 7 980 0 3142 G Piston ring width Min 1 45 0 057 H Piston ring end gap Max 0 5 0 02 K Con rod small end bore Max 11 025 0 4341 L Crankshaft runout Max 0 02 0 001 M Sprocket bore Max 0 05 0 00
8. djust L mixture needle to obtain maximum idle speed 3 Set idle speed to 4 400 r min by turning idle ad just screw 4 Turn L mixture needle anticlockwise to reduce engine idle speed 1 000 to 1 100 r min to set idle speed in the range of 3 300 to 3 400 r min NOTE Engine speed must be allowed to stabilize a minimum of 20 seconds after each adjustment of L mixture needle to assure accurate tachometer readings 5 Turn H mixture needle anticlockwise until en gine speed drops to approx 11 000 r min Turn H mixture needle 1 8 turn increments clockwise at idle engine speed then squeeze throttle trigger and check WOT engine speed If the WOT engine speed is less than 11 500 r min turn H mixture needle 1 8 turn clockwise again and check WOT engine speed The final WOT engine speed should fall within the11 700 to 12 300 r min range NOTE During H mixture needle adjustment do not run engine at high speed without load longer than 10 seconds 6 After adjusting carburettor put new limiter cap on the other side of limiter cap tool as shown and press the limiter caps to the bottoms on L and H mixture needles respectively NOTE Align the limiter cap s tabs A with locat ing slots B in extended housing of carburettor IMPORTANT The limiter caps must be in stalled L and H mixture needles to comply with Emission Directive 7 Start engine again and make it sure engine runs at idle speed in the range of 2 800 to 3 6
9. g intake port to test crankcase cylinder leakages 17 897828 12330 Pressure rubber plug Plugging intake port to test crankcase cylinder leakages 18 897835 16131 Pressure connector Checking crankcase and cylinder leakages 19 91037 Compression gauge Measuring cylinder compression 20 91004 Module air gap gauge Adjusting pole shoe air gaps 21 91019 Limiter cap tool Removing and installing limiter cap 8 CS 260TES SERVICE INFORMATION CS 270WES 2 CARBURETTOR ADJUSTMENT PROCEDURE 2 1 General adjusting rules A Before starting the unit for adjustment check the following items 1 The correct spark plug must be clean and properly gapped 2 The air filter element must be clean and properly installed 3 The muffler exhaust port must be clear of carbon 4 The fuel lines tank vent and fuel filter are in good condition and clear of debris 3 the fuel is fresh gt 89 octane RON and properly mixed at 50 1 with ISO L EGD or JASO FC 2 stroke 6 The recommended bar and chain must be installed to the power head and properly tensioned NOTE Make sure of proper installation of guide bar and saw chain when adjusting carburettor or serious engine damage will occur due to overspeeding B Adjust carburettor turning L and H mixture needles with limiter caps within the moving range approx 90 and idle adjust screw When engine does not run correctly after this adjustment proceed to the next step 2 2
10. ink 35 40 47 60 Pitch in 3 8 1 4 Gauge in 0 050 CS 260TES CS 270WES SERVICE INFORMATION 1 2 Technical data Model CS 260TES CS 270WES Engine Idling speed r min 2800 3600 Operating speed r min 8500 9000 High speed No load full throttle r min 11000 12500 Clutch engagement speed r min 4450 4750 Compression pressure MPa kgf cm psi 0 85 8 7 124 Ignition system Spark plug gap mm in 0 6 0 7 0 024 0 028 Minimum secondary voltage at 1500 r min kV 15 Secondary coil resistance kQ 1 2 1 8 Pole shoe air gaps mm in 0 30 0 40 0 012 0 016 Ignition timing at 1500 r min BTDC 25 at 3000 r min BTDC 20 at 8000 r min BTDC 36 at 12000 r min BTDC 25 Carburettor Idle adjust screw initial setting turns in 2 1 8 L mixture needle initial setting turns back 1 5 8 H mixture needle initial setting turns back 1 7 8 Test Pressure minimum MPa kgf cm psi 0 05 0 5 7 0 Metering lever height mm in 1 65 0 06 lower than diaphragm seat Chain oil discharge volume at 7000 r min mL min U S fl oz min Adjustable 1 5 13 0 05 0 40 Factory set 7 mL min BTDC Before top dead centre With 25cm guide bar and saw chain Set idle speed screw to the point that its tip just contacts throttle plate before initial setting 4 CS 260TES
11. lign with locating slot when screwing the limiter cap tool into centre hole of the other limiter cap 4 Screw thread of limiter cap tool 91019 into other centre hole of the other limiter cap anticlockwise until the limiter cap is come out from the mixture needle completely Remove the limiter cap from limiter cap tool turning clockwise Screw thread of limiter cap tool 91019 into centre hole of previous limiter cap to pull out completely 5 Turn L and H mixture needle clockwise until lightly seated and then turn both mixture needles anticlockwise following turns L mixture needle 1 5 8 H mixture needle 1 7 8 NOTE If needles are forced during seating dam age to carburettor may occur 6 CS 260TES Remove cleaner lid and cleaner case to confirm throttle plate on carburettor visu ally CS 270WES Remove cleaner lid to confirm throttle plate on carburettor visually 7 Turn idle adjust screw anticlockwise and set the screw until the tip to just contact throttle plate Then turn idle adjust screw 2 1 8 turns clockwise Install all removed parts 1 0 CS 260TES SERVICE INFORMATION CS 270WES 2 3 Adjusting carburettor 1 Start engine and warm it up well for 70 seconds as follows 1 5 seconds at idle and 5 seconds at WOT 2 5 seconds at idle and 5 sedonds at WOT 3 5 seconds at idle and 10 seconds at WOT Repeat above 1 to 3 again idle adjust screw 2 Using 2 5 mm wide blade screw driver a
Download Pdf Manuals
Related Search