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28

TROUBLE SHOOTING

Symptom

Cause

Corrective action

Engine fails to fire.

Fuel tank is empty.
Fuel not reaching the engine.

Fill the tank with fuel and repeat
Priming procedure.

Glowplug element is burnt out.
Glowplug battery discharged

Replace glowplug.

Recharge or replace the battery.

Clogged fuel filter

Silencer inside is dirty.

Clean or replace fuel filter.

Clean inside silencer.

Over priming

Remove glowplug and pump excess fuel.

Fuel tubing is disconnected.

Connect fuel tubing securely.

Fuel tubing is kinked, split or has a hole.

Check the tubing carefully and replace if necessary.

Incorrect carburetor settings

Return the needle valve 
and mixture control valve to basic position.

Incorrect servo linkage

Re-linkage after setting servo at neutral.

Reverse rotating direction of electric starter.

Mare sure it rotates counter clockwise seen 
from crankshaft side.

29

Symptom

Cause

Corrective action

Engine fires intermittently but does not run.

Insufficient fuel in the tank.

Fill the tank with fuel.

Deteriorated glowplug

Replace glowplug.

Clogged fuel filter

Silencer inside is dirty.

Clean or replace fuel filter.

Clean inside silencer.

Engine overheated

Wait until engine is cooled.

Starting battery disconnected too soon.

Do not disconnect plug battery and wait until
r.p.m. become stable.

Air bubbles in fuel.

Mount fuel tank in foam rubber

Содержание MaX-37SZ-HRING

Страница 1: ...quipment etc are accessible for checking at the same time 1 CONTENTS SAFETY INSTRUCTIONS AND WARNINGS ABOUT YOUR O S ENGINE NOTES ON INSTALLING COOLING FAN AND CLUTCH NOTES WHEN APPLYING AN ELECTRIC S...

Страница 2: ...many other possibilities generally less obvious sources of danger but which under certain circumstances may also cause damage or injury 3 WARNINGS Never touch or allow any object to come into contact...

Страница 3: ...ead down securely Take care that the glow plug clip or battery leads do not come into contact with rotating parts Adjust the throttle linkage so that the engine stops when the throttle stick and trim...

Страница 4: ...engineering plastic and locks the crankshaft without risk of damage to any part of the engine Application is as follows Remove the crankcase rear cover plate from the engine and rotate the crankshaft...

Страница 5: ...able for sport flight as well as 3D flight INTRODUCTION STANDARD ACCESSOIES Glow Plug No 8 Instruction manual Items necessary for starting Tools accessories etc The following items are necessary for o...

Страница 6: ...ntact with the eyes or mouth Always store it in a clearly marked container and out of the reach of children Reminder Fuel Model engine fuel is also highly flammable Keep it away from open flame excess...

Страница 7: ...Long Socket Wrench incorporates a special grip End Wrenches 8mm 13mm 14mm etc Needle Nose Pliers 13 ENGINE PARTS NAME Heatsink Head Carburetor Typr 20M Crankshaft Propeller nut Crankcase Glowplug Beam...

Страница 8: ...ting the needle However plug life can be extended and engine performance maintained by careful use i e Apart from when actually burned out a plug may need to be replaced because it no longer delivers...

Страница 9: ...tle this establishes the basic fuel air mixture strength This is then maintained by the carburetor s automatic mixture control system to cover the engine s requirements at reduced throttle settings Th...

Страница 10: ...erous Approx 19 4 5 6 Checking the rotating direction of the starter Make sure that the starter rotates to the direction shown in the sketch If the direction is reverse reverse the leads on battery In...

Страница 11: ...ining relatively large percentages of power boosting nitromethane operate at richer mixture settings than are needed for mild fuels and will therefore require the Needle Valve to be readjusted accordi...

Страница 12: ...is flying at full throttle lf at full throttle acceleration is poor the H I J K L 23 exhaust unduly smoky and the model fails to reach expected straight line speed the mixture is too rich and the Need...

Страница 13: ...e Valve setting The use of a different glowplug or changes to the mainrotor and its pitch angles may also require compensating carburetor readjustments CARBURETOR CLEANLINESS The correct functioning o...

Страница 14: ...r approx 10 seconds then reopen throttle to observe transition Float the model Turn the Mixture Control Valve counter clockwise Idle OK Turn the Mixture Control Valve clockwise Lean mixture Rich mixtu...

Страница 15: ...refueling container will prevent the entry of foreign material into the fuel tank It is also recommended that a good in line filter be installed between the tank and carburetor 1 Finally injectsomeaft...

Страница 16: ...ce if necessary Incorrect carburetor settings Return the needle valve and mixture control valve to basic position Incorrect servo linkage Re linkage after setting servo at neutral Reverse rotating dir...

Страница 17: ...or disconnected Check the connections and secure them Fuel tubing from tank to is split or broken Replace the tubing 31 Symptom Cause Corrective action Symptom Cause Corrective action Poor response D...

Страница 18: ...2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Description Code No No Screw Set Cover Plate Gasket Set Crankshaft Crankshaft Bearing Rear Crankcase Crankshaft Bearing Front Thrust Washer Propeller Nut Carbu...

Страница 19: ...ly Throttle Lever Retaining Screw 2pcs Carburetor Rotor Carburetor Body Rotor Guide Screw Needle Valve Assembly Needle Assembly O Ring 2pcs Needle Valve Holder Assembly Needle Valve Holder Ratchet Spr...

Страница 20: ...tion for improvement without notice GLOWPLUG DRIVE HUB CRANKSHAFT CLAMP M2 6x7 CAP SCREW SET 10pcs 23408000 79871020 37 THREE VIEW DRAWING Displacement Bore Stroke Practical R P M Power output Weight...

Страница 21: ...ight 2004 by O S Engines Mfg Co Ltd All rights reserved Printed in Japan 60091520 010603 TEL 06 6702 0225 FAX 06 6704 2722 6 15 3 Chome Imagawa Higashisumiyoshi ku Osaka 546 0003 Japan URL http www os...

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