Subaru Robin Power Products R1200 service manual Piston and Piston Ring

Page 54

9-4-2 PISTON AND PISTON RING

(1)If a ring expander is not available, set the ring joint at the first land of the piston, as shown in Fig. 9-4-4. Then, open the joint wide so that the ring can be slid into the fegular groove.

Note: Be careful not to twist or expand each ring too excessively. The oil ring is fitted onto the piston, followed by the second ring and top ring.

Top Ring

Second Ring

Oil Ring

F&. 9-43

(2)The connecting rod is joined to the piston with the piston pin.

Note: Prior to assembly, apply sufficient lub- ricating oil, to the connecting rod minor edge.

Note: Be sure to secure the clips to both sides of the piston pin.

(3)In setting the connecting rod, hold it with a piston ring guide, as shown in Fig. 9-4-5, (or, if there is no ring guide, tap the piston head with a wooden object pressing the piston ring with a finger tip to push it in). Set it to the position of the @ mark or MA mark of the connect- ing rod in the flywheel magneto side.

Note: Prior to assembly, apply sufficient lubricating oil to the piston ring, con- necting rod metal, and cylinder wall.

Note: Fit the piston with the piston rings arranged 90* from the periphery of the piston.

Fig. 9-4-4

Piston Ring Guide

F&T 94-5

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Image 54
Contents Rozh -J &ii Foreword Contents Assembly Specifications ItemsPower Factor AC OutputOutput Max Rated 800 W Frequency 50 Hz Voltage 110 Output MaxFrequency 60 Hz Voltage 12ov DC Output Under no load is approximately from 18V up toFeatures Component Identification CHOKE-RUN-STOPFunction of Each Component L-5 Crankshaft 4CONNECTING ROD and PistonMain Bearing Cover CamshaftAIR Cleaner Carburetor‘CC Description of Main OperationsVoltage Regulation Under Load Fis Output Waveform Current @ Curr&t @ Operational Limits of the Generator Load Electric Battery Capacity Wire Length Measuring Procedures II ’ Mj 1 mIPage To Measure Insulation Resist Control Panel Functional Check of Each Component L aOne section, replace with Assy 83 AVR Windings, or peripheral temperature Cleaning of Slip Ring ResistanceValue El 10.7J-z At rated rpm Exciting coilDisassembly and Assembly Precautions Tools DriverPrecautions Nection Description By unscrewing three SequenceI Part to remove j IFront cover DescriptionI2 Remove the front cover M5 x 8 screwsBe careful not to Description PrecautionsPart to Sequencej remOve Damage the fuel PipePart to Sequence, remove LpannerSpanner That 1wiring Remove $Ez End cover Description Precautions@ Driver Remove the connector Assembling, be Part toRemOve ’Rear ‘bracket Description See Fig. g-3-10SequenceI Rpearfito~~ Description Pull away the stator cover’ plastic hammer Siw‘ Necessary Precautions Part to / Sequencej remove ’ JFront Ibracket Description13 m/m box Spanner RemOve DescriptionPrecautions Necessary Tools Blower i 1 1housing I10 m/m box spannerNecessary Precautions . tools @ Driver Brace nuts 112m/m box ’spanner 10 m/m box jspanner Precautions Bolt has only to be loosenedOne M6 x 12 bolt ’Governor Remove the governor lever j LeverIgnition coil from 26 i &cocci*nRemove the starting pully Crank case by takingFront and hook ’ the minus driver Pull out the intake valve and the exhaust valveNotch Spanner 1spring retainer’s RetainerISequenceI Part to Camshaft DescriptionCrankcase Tappets to distin Guish them from one Be careful not to open the joint too wide, or it will break Remove the crankshaft Be careful not toAssembly Procedure WTolerances of new installed parts Connecting rod is joined to the piston with the piston pin Piston and Piston RingConnecting ROD Tappets and CamshaftIntake Valve and Exhaust Valve WV&e h valve guide clearance =53Tappet Adjustment Breather Plate and Tappet Cover Cylinder HeadIgnition Plug Ignition COIL, Exciting COIL, Flywheel and Starting PulleyGovernor Lever Speed Control Nut Muffler and Muffler CoverHead Cover and Blower Housing 1’7 Recoil StartorFront Bracket Rear Bracket and Stator Brash Holder Bracket Cover Page Fuel Pipe Connection Front Cover and Element CoverConnection of Coupler and Plug Secure the side cover with four M 5 x 8 screws Carburetor Schematic Diagram of the Fuel System By-Pass Choke Disassembly and Assembly of Carburetor 184 Safety Precautions Troubleshooting Starting failur Cock is closed Pzlzq L1Ill IISymptoms AIgnition coil ’ \ r?J Hanging posi- tion is not normal Abration 7Symptoms 0Governor system III Seat Case Case there Abnormal Operation Is too much Pour Lubri Been changed Replace Periodically 1Symptoms Voltemeter Stator sub-coil Symptoms LNo DC voltage is output Voltag,eistoo high QParts LSymptoms Symptoms Voltage Is abnormally low Parts For Adjustment Criteria TableUel con Limit Items Adjustment Criteira Description Tools Wiring Diagram LT-TwMaintenance Checks and Maintenance for Every 200 Hours Every Month Page Page Issue EMD-GS0095
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