Table of Contents
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It is of vital importance, before attempting to
operate your engine, to read the general
'SAFETY INSTRUCTIONS AND WARNINGS'
section on pages 2-5 of this booklet and to strictly
adhere to the advice contained therein.
Also, please study the entire contents of this
instruction manual, so as to familiarize yourself
with the controls and other features of the
engine.
Keep these instructions in a safe place so that
you may readily refer to them whenever
necessary.
It is suggested that any instructions supplied
with the vehicle, radio control equipment, etc.,
are accessible for checking at the same time.
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Table of Contents
Related Manuals for O.S. engine MAX-15LD
Summary of Contents for O.S. engine MAX-15LD
- Page 1 It is of vital importance, before attempting to operate your engine, to read the general 'SAFETY INSTRUCTIONS AND WARNINGS' section on pages 2-5 of this booklet and to strictly adhere to the advice contained therein. Also, please study the entire contents of this instruction manual, so as to familiarize yourself with the controls and other features of the engine.
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Page 2: Table Of Contents
CONTENTS SAFETY INSTRUCTIONS AND IF THE ENGINE FAILS TO START WARNINGS ABOUT YOUR O.S. ENGINE FINAL ADJUSTMENT INTRODUCTION, BASIC ENGINE PARTS CARBURETOR CLEANLINESS ENGINE SHIELD, INSTALLATION CARE AND MAINTENANCE THROTTLE LINKAGE PARTS REPLACEMENT AIR CLEANER EXPLODED VIEW & NOTES CONCERNING ENGINE PARTS LIST THE RECOIL STARTER CARBURETOR EXPLODED VIEW... -
Page 3: Safety Instructions And Warnings About Your O.s. Engine
SAFETY INSTRUCTIONS AND WARNINGS ABOUT YOUR O.S. ENGINE Remember that your engine is not a "toy", but a highly efficient internal- combustion machine whose power is capable of harming you, or others, if it is misused. As owner, you, alone, are responsible for the safe operation of your engine, so act with discretion and care at all times. - Page 4 WARNINGS • • Model engine fuel is poi- Never operate your engine in an en- closed space. Model engines, like sonous. Do not allow it to automobile engines, exhaust deadly come into contact with the eyes or mouth. Always carbon-monoxide. Run your engine store it in a clearly marked only in an open area.
- Page 5 NOTES • This engine is intended for model cars. • The wearing of safety glasses is also Do not attempt to use it for any other strongly recommended. purpose. • Take care that the glowplug clip or • Mount the engine in your model battery leads do not come into contact securely, following the manufacturers' recommendations, using appropriate...
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Page 6: Introduction, Basic Engine Parts
NOTES • To stop the engine, fully retard the • Pull the operating handle straight out throttle stick and trim lever on the when starting the engine, so that the trans-mitter, or, in an emergency, cut cord does not rub against the vehicle off the fuel supply by pinching the fuel body or engine. -
Page 7: Engine Shield, Installation 7
INSTALLING THE GLOWPLUG INSTALLATION OF ENGINE Fit washer to glowplug and Make sure that the chassis is flat and free from insert carefully into cylinder- flaws or dirt. The recommended screws for head, making sure that it is securing the engine to the chassis are 3mm (8 not cross-threaded to 10mm long ). -
Page 8: Throttle Linkage
Adjust the ball link position so that . LD - X INSTALLATION OF E-1000 SILENCER ( 12/15LD linkage rod and upper plate become parallel by loosening 3mm set-screw. MODIFICATION OF O.S. E-1000 SILENCER FOR PRESSURIZED FUEL SUPPLY • Fit the nipple (supplied) to Seal here applying heat-resistent the silencer, applying heat-... -
Page 9: Notes Concerning The Recoil Starter
FILTER ELEMENT AND ITS REPLACEMENT NOTES CONCERNING THE RECOIL STARTER • The elements are already impregnated with a ( 12/15LD-X ONLY) REMINDER! special filter oil. As this oil is very sticky, take care, Do not attempt to disassemble the recoil when handling them, to prevent dust or dirt from starter. -
Page 10: Glowplugs 10
The role of the glowplug The starter prevents the engine from being With a glowplug engine, ignition is initiated by the rotated in the wrong direction.The unit will application of a 1.5-volt power source. When the be damaged if you attempt to force the fly- battery is disconnected, the heat retained within the wheel in the opposite direction (i.e. -
Page 11: Tools, Accessories, Etc
When to replace the glowplug As a starting point, we recommend a fuel containing 10- Apart from when actually burned out, a plug may 20% nitromethane, changing to a fuel containing more need to be replaced because it no longer delivers its nitro only if necessary. -
Page 12: Carburetor Controls
2mm i.d. is required for the connection between the mulae, gear ratio or fuel tank and engine. clutch engagement point. ELECTRIC STARTER AND STARTER BATTERY Needle Valve Use an electric starter with 12-volt battery for starting the MAX-12LD and MAX-15LD. -
Page 13: Starting The Engine & Running-In('Breaking-In) 13
STARTING THE ENGINE & RUNNING-IN ('Breaking-in') PRESSURIZED FUEL SYSTEM The following procedure is suitable for these engines when the O.S. T-1020 tuned silencer and a fuel • The somewhat violent changes of vehicle attitude containing up to 30% nitromethane are used. that occur in off-road running, combined with the •... - Page 14 • • Front DO NOT energize glowplug, When the engine starts, first allow it to operate in short but apply electric starter to runs at the very rich starting settings, with the glowplug Rear draw fuel to carburetor. battery still connected and with its driving wheels clear of the ground.The rich mixture will, under these •...
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Page 15: If The Engine Fails To Start
Repeat this procedure until 5 more tanks of fuel have IF THE ENGINE FAILS TO START been consumed, during which time the throttle may Check the following: be opened for brief bursts of increased power. If the engine stops at medium speeds, close the Mixture •... -
Page 16: Final Adjustment 16
• In this case, turn the Mixture Control Valve FINAL ADJUSTMENT clockwise 45~90˚. If, on the other hand, the engine • Run the vehicle (with throttle fully open) over the tends to speed up momentarily and then cut out longest available straight course, in order to observe abruptly when the throttle is opened,the idling the model's speed. -
Page 17: Carburetor Cleanliness 17
• With the optimum mixture control position, light CARBURETOR CLEANLINESS smoke is visible during high speed running,and the The correct functioning of the carburetor depends on engine revolutions increase smoothly during its small fuel orifices remaining clear. acceleration. Remember that, if the engine is operated with the fuel/air mixture slightly too lean, it BALL LINK AND SLIDE VALVE EXTENSION will overheat and run unevenly. -
Page 18: Care And Maintenance
REALIGNMENT OF MIXTURE CONTROL VALVE CARE AND MAINTENANCE In the course of making carburetor adjustments, it is The minute particles of foreign matter, that are just possible that the Mixture Control Valve may be present in any fuel may, by accumulating and inadvertently screwed in or out too far and thereby partially obstructing fuel flow, cause engine moved beyond its effective adjustment range.Its basic... -
Page 19: Parts Replacement 18
4. Then, inject some after-run oil into the engine, and PARTS REPLACEMENT rotate the engine with an electric starter for 4 to 5 seconds to distribute the oil to all the working Over a long period, depending on how well parts. - Page 20 MAX-12, 15LD/LD(T) EXPLODED VIEW N.+ M2 .6 x1 5 M. +M2. 6x 12(12LD) C . M 2.6x 12(15LD) M. + M2 .6 x7 N . + M 3 x 27 Type of screw C Cap Screw M Oval Fillister-Head Screw F Flat Head Screw N Round Head Screw S Set Screw...
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Page 21: Engine Parts List
MAX-12,15LD/LD(T) ENGINE PARTS LIST Description Code No. 104 Filter Elements (3 pcs. ) 7 2403 420 12LD 7 2403 410 Engine Shield 15LD Engine Shield 7 2403 510 Carburetor Complete ( Type 10F ) 2 1183 000 Heatsink Head 12LD 2 1154 000 Heatsink Head 15LD... - Page 22 MAX-12, 15LD-X/LD-X(T) EXPLODED VIEW N. +M2 . 6 x1 5 M. +M2.6x 12(12LD-X) C . M 2 .6x 12(15LD-X) N . + M 3x 27 N.+ M2 . 6x7 y -1 y -2 M. + M2 .6 x7 Type of screw C Cap Screw M Oval Fillister-Head Screw F Flat Head Screw N Round Head Screw S Set Screw...
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Page 23: Engine Parts List
MAX-12,15LD-X/LD-X(T) ENGINE PARTS LIST Description Code No. 104 Filter Elements (3pcs.) 7 2403 420 12LD-X Engine Shield 7 2403 410 15LD-X Engine Shield 7 2403 510 Carburetor Complete (Type 10F) 2 1183 000 2 1154 000 Heatsink Head 12LD-X Heatsink Head 15LD-X 2 1554 000 12LD-X... -
Page 24: Carburetor Exploded View & Parts List
10F CARBURETOR EXPLODED Code No. Description VIEW & PARTS LIST 2 1481 900 Needle Valve Assembly 2 7881 820 "O" Ring 1 -1 2 1481 950 Universal Nipple No.12 N . + M 2 . 6 x 7 1 -2 2 1285 600 Mixture Control Valve Assembly "O"... -
Page 25: O.s. Genuine Parts & Accessories
O.S. GENUINE PARTS & ACCESSORIES RACING ENGINE PARTS Super Joint Tube 15 T-1020 O.S. Glow Plug (72103310) Tuned Silencer No.8 (71608001) (72103020) (71605300) (71605100) 104 Filter Elements (3pcs.) (72403420) Long Socket Wrench E-1000 Silencer Dust Cap Set With Plug Grip 4 (73300305) For TAMIYA TGX/TG10 For Carburettor Nipple... -
Page 26: Three View Drawing 26
2.11 cc(0.129cu.in.) Bore 14.0 mm(0.551in.) Stroke 13.7 mm(0.539in.) Practical R.P.M. 3,000 30,000 r.p.m. Power output 0.56 bhp / 29,000 r.p.m. Weight 273g(9.64oz.) MAX-15LD SPECIFICATIONS Displacement 2.49 cc(0.152cu.in.) Bore 15.2 mm(0.598in.) Stroke 13.7 mm(0.539in.) Practical R.P.M. 3,000 30,000 r.p.m. Power output 0.68 bhp / 29,000 r.p.m. - Page 27 2.11 cc(0.129cu.in.) Bore 14.0 mm(0.551in.) Stroke 13.7 mm(0.539in.) Practical R.P.M. 3,000 30,000 r.p.m. Power output 0.56 bhp / 29,000 r.p.m. Weight 336g(11.86oz.) MAX-15LD-X SPECIFICATIONS Displacement 2.49 cc(0.152cu.in.) Bore 15.2 mm(0.598in.) M5x0.8 Stroke 13.7 mm(0.539in.) Practical R.P.M. 3,000 30,000 r.p.m. 35.7 Power output 0.68 bhp / 29,000 r.p.m.
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Page 28: Memo
MEMO... - Page 29 6-15 3-Chome Imagawa Higashisumiyoshi-ku Osaka 546-0003, Japan TEL. (06) 6702-0225 FAX. (06) 6704-2722 URL : http://www.os-engines.co.jp Copyright 2000 by O.S.Engines Mfg. Co., Ltd. All rights reserved. Printed in Japan. 100000...
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