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Robin EC06 Service Manual

Ec06; ec08
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SERVICE
MANUAL
Models
EC06, EC08
1193s1 20

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Summary of Contents for Robin EC06

  • Page 1 SERVICE MANUAL Models EC06, EC08 1193s1 20...
  • Page 2 ROBIN AMERICA, INC. ROBIN TO WISCONSIN ROBIN ENGINE MODEL CROSS REFERENCE LIST ROBIN ROBIN WISCONSIN SIDE VALVE W 1-080 EY08 W1-145 EY15 W1-145V EY 15V W1-185 EY20 W1-185V EY2OV W1-230 EY23 W 1-280 EY28 1-340 W 1-390 EY40 Wl-45OV EY45V EY21W EY44W EY44...

  • Page 3: Table Of Contents

    ....CONTACT BREAKER ADJUSTING PROCEDURE (EC06) ........
  • Page 4 Fuel Tank Cap Recoil Starter ECOGD Spark Plug Muffler Cover overnor Lever Engine Base (optional) Governor Chamber (Engine base is onal.) opti ECOGB...

  • Page 5: Specifications

    ECOGD ECOGB ECOID Model E C O ~ B Air-Cooled, 2-Cycle, Vertical, Piston Valve Type, Single Cylinder Gasoline Engine mm x 40 mm Bore x Stroke 4 4 m m x 4 0 m m lacement Piston 78.5 .60.8 cc Continuous Rated Output (HP/rpm) 1.6/3600,1.9/4500 11.6/1440, 1.9/1800...

  • Page 6: Performance

    2. PERFORMANCE 2-1 MAXIMUM OUTPUT Maximum output refers to the standard power produced by a sufficiently run-in engine with the carburetor throttle valve fully open. A new engine cannot always deliver maximum output power because it has not been well run in. 2-2 RATED CONTINUOUS OUTPUT r i / The term refers t o a continuous output most ideal to engine life and fuel consumption under governor con-...
  • Page 7 PERFORMANCE CURVE MODEL EC08D/B B type kg-m 1.25) (0.75) gr/H P- 200) (1 600) (2000) - - * r.p.m. Revolution - 3 -...

  • Page 8: Features

    Compact, lightweight, high-powered engine with reliable operation also in the low speed range Extremely simple in construction, trouble-free, and very easy to use Quiet running engine using a lined aluminium cylinder (EC06) Equipped with T.C.I. (Transistor Circuit Ignition) durable that the engine can stand hours of tough work.

  • Page 9: Disassembly And Reassembly

    4. DISASSEMBLY and REASSEMBLY 4-1 PRE-PARATIONS SUGGESTIONS .Disassembly -1) In"disassembling, remember the location of each part so that the disassembled partsEcan be reassembled . in the right way. Attach tags to those parts which might be mistaken for others. 2) Carefully handle the gaskets because they can easily break. 3) Temporarily fasten disassembled parts in their original positions to prevent them from missing and wrong reassembly.

  • Page 10: Disassembly Procedure

    DISASSEMBLY PROCEDURE 4-3-9 CONTACT BREAKER, CAPACITOR, IGNITION COIL 4-3- DISCHARGING FUEL [Point Type for EC06 (See Fig. 3A.)] Discharge the fuel from the fuel tank. 4-3-2 FUEL TANK 1) Remove the screws that fasten the capacitor and point cover together, and remove the point cover 1) Disconnect the pipe connecting the fuel filter to from the crankcase.
  • Page 11 C. I. (Transistor Control Ignition) magneto] FLYWHEEL COMPLETE Features The FLYWHEEL COMPLETE has perma- The T.C.I. magneto completely solves the prob- nent- magnets so that the rotation of these lems with the conventional point type magneto, magnets generates an AC electromotive force that is, stains, burns, rusting during long storage, in the primary coil of the generating assem- ignition timing deviation due to mechanical wear,...
  • Page 12 4-3- CARBURETOR, GOVERNOR LEVER 13 REDUCTION GEAR (Type B only) 1) Remove the nut and then the carburetor from 1) Remove the drain plug from the reduction cham- the cylinder. ber to discharge the oil. 2) Loosen the nut, and remove the governor lever 2) Remove the reduction chamber cover from the from the governor shaft.

  • Page 13: Reassembly Procedure

    4-3- 15 DIVIDING CRANKCASE 4-4 REASSEMBLY PROCEDURE Remove the bolts, and carefully strike the crankcase 4-4-1 CRANKSHAFT COMPLETE and PISTON with a mallet t o part it. (See Fig. 8.) Apply engine oil to the needle bearing, and fit it onto Clean the divided crankcase with gasoline, and apply the small end of the connecting rod.
  • Page 14 4-4-7 SPARK PLUG Crankshaft Tighten the spark plug into the cylinder. Rear Crankcase . . . 275 +25 Note: Tightening torque. kg-crn Governor Yo 4-4-8 GOVERNOR LEVER Tighten the governor lever to the governor shaft with the nut. (For the adjusting procedure, refer to the section on governor adjustments.) 4-4-9 GOVERNOR SPRING...
  • Page 15 Tightening torque kg-cm Temporarily tighten the capacitor. 4-4- 18 IGNITION COIL 4-4- 15 IGNITION TIMING CHECK (EC06) Adjust the air gap with a searcher, and tighten the ignition coil with plain and spring washers. (See Fig. Temporarily install the flywheel, and check and ad- 15.)
  • Page 16 4-4-21 CYLINDER COVER Insert the cylinder cover tips into the matching slots in the crankcase, and tighten the cylinder cover on the cylinder. (See Fig. 18.) Note: Insert the cylinder cover tips in to the slots on both sides..Tightening torque 10 kg-cm Cylinder Cover...

  • Page 17: Contact Breaker Adjusting Procedure (Ec06)

    5. CONTACT BREAKER ADJUSTING PROCEDURE (EC06) 1) Remove the fan cover. 2) Remove the starter pulley. 3) Remove the flywheel. Loosen the capacitor screws. 5 ) Remove the point cover. Remove carbon and other foreign particles from the point, polish-the contact surface with sandpaper No.400...

  • Page 18: Carburetor Adjustment

    2) Maximum Speed Adjustment (See Fig. 2 The standard maximum speed is 5000 rpm for EC06, or 5500 rpm for EC08. Move the governor lever to the highest speed position, adjust the crankshaft rpm to 5000...

  • Page 19: Governor Adjustment

    7. GOVERNOR ADJUSTMENT Fully open the carburetor butterfly valve, fasten the governor lever, turn the governor shaft fully counter- clockwise, and fasten the governor lever on the gov- ernor shaft with the nut. (See Figs. 22 and,23.) Fig. Governor Rod Governor Rod Spri Throttle Lever Carburetor...

  • Page 20: Trouble-Shooting

    8. TROUBLE-SHOOTING The following three conditions must be satisfied for satisfactory engine start: 1) The cylinder filled with a proper fuel-air mixture 2) An appropriate compression in the cylinder 3) Good spark at correct time to ignite mixture The engine cannot be started unless these three conditions are met. There are also other factors which make engine start difficult, e.g., a heavy load on the engine when it is about to start at low speed, and a high back pressure due to a long exhaust pipe, just to say a few, The most common causes of engine troubles are given below:...
  • Page 21 Preventive hints Remedy Cause rrouble Magneto defective (1) If coil is broken or its insulation defective, V o or little replace magneto with a new one. ;park (2) If magnetism decreased, have it remag- netized at magneto manufacturer's or replace magneto.with a new one. (1) If stop button is defective (grounded), Electrical system repair or replace it.

  • Page 22: Spark Plugs Won't Spark

    Spark plugs won't spark. Wire connector loose Connect connector securely. Wire damaged Replace damaged parts. Not securely mounted Mount it on engine securely. on engine Conduct continuity test on T.C.I. unit faulty T.C.I. I).] unit. [See r"\ Conduct continuity test on Generating assembly faulty coil.

  • Page 23: Idling Improper

    3) If a spark plug of a heat value too low is used, use one of the specified heat value. Example: NGK B6HS for EC06, NGK B7HS for EC08 If the gasoline air-mixture is too lean, clean the jets and orifices of the carburetor. Also clean the air- cleaner.

  • Page 24: Excessive Fuel Consumption

    8-5 EXCESSIVE FUEL CONSUMPTION 1) If the gasoline-air mixture fuel is too rich, clean the carburetor jets and orifices. 2) Replace the carburetor if its throttle shaft is worn. 3) Retighten or replace parts if fuel leaks. 4) Take the steps against power drop described in Paragraph 8-4 above because excessive fuel consumption also results from power drop.

  • Page 25: Checks And Corrections

    . _ . " ..'9. CHECKS CORRECTIONS After disassembiing and cleaning the'engine, check and adjust the parts according to the Standard Correction ;Table, .-which provides important information to be referred to in adjusting repairing the engine. Be ;.fWiliar-with the table and conform to the.standards specified in servicing the engine.

  • Page 26: Engine Standard Correction Table

    Measure after Searcher Replace 0.05-0.09L side clearance removing carbon. Second ring 0.04-0.08L EC08 First ring 0.06-0.1OL Second ring 0.03-0.07L EC06, EC08 4-0.13 Measure maximum Block gauge Replace Piston ring groove width. groove width Measure minimum Micrometer Replace -0.10 Piston ring width E m , EC08 Lvidrh.
  • Page 27 MeasuringlCorrecting Correction Point Model Standard Dimensions Limit Measuring instrument Correction 0.1 -0.6L 0.8 L Connecting r o d EC06, EC08 Measure after Searcher Replace reassembly large end side clearance Crankshaft EC06. EC08 0.05 or less in reassembled state, Dial gauge...

  • Page 28: Table Of Tightening Torque

    9 - 2 TABLE of TIGHTENING TORQUE Screw Parts to tighten Tightening torque Remarks diameter kgcm Cylinder Cover, Muffler Cover 80*10 Fan Cover, Tank Support Plate, 90k10 Starter, Starter Pulley Crankcase 110 -+20 Air Cleaner 50 +5 Reduction Cover 110+20 Type B only Muffler 80+10...

  • Page 29: Maintenance And Storing

    10. MAINTENANCE and STORING The following maintenance jobs apply when the engine is operated correctly under normal conditions. The indicated maintenance intervals are by means guarantees- for maintenance free operations during these intervals. For example, if the engine is operated in extremely dusty conditions, the air cleaner should be cleaned every day, instead of every 50 hours.
  • Page 31 Industrial Engines...

This manual is also suitable for:

Ec08Ec06dEc06bEc08dEc08b

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