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O.S. engine MAX-46AX II User Manual

O.S. engine MAX-46AX II
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O.S. engine MAX-46AX II Specifications

General IconGeneral
BrandO.S. engine
ModelMAX-46AX II
CategoryEngine
LanguageEnglish

Summary

Safety Instructions and Warnings

General Warnings

Covers serious injury risks like propeller contact, fuel poisoning, flammability, heat, and mechanical failure.

Operational Notes

Addresses engine's intended use, secure mounting, silencer use, glowplug handling, and propeller checks.

About the Engine

Engine Description

Details the high-performance two-stroke engine, its angled needlevalve, and the E-3071 silencer.

Standard Accessories

Lists essential included accessories like Needle Valve Extension Cable Set and Silencer Assembly.

Basic Engine Parts Diagram

Illustrates key components including cylinder head, carburetor, glowplug, and crankshaft.

Installation and Setup

Engine Mounting

Recommends rigid mounting and accurate alignment of mounting beams for performance and safety.

Throttle Linkage

Guide on connecting throttle linkage for smooth, symmetrical movement and proper full/closed range.

Silencer Installation

Instructions on securing the silencer to the engine using retaining screws.

Propeller Selection

Guidance on choosing propellers based on aircraft design and flying type, emphasizing balance.

Starting and Running-In

Starting Procedure

Step-by-step guide for starting the engine using an electric starter, including fuel filling and glowplug checks.

Running-In (Breaking-in)

Essential procedure for mating engine parts under load at operating temperature for longevity.

How to Stop the Engine

Method for safely stopping the engine by retarding throttle and trim levers on the transmitter.

Fuel and Mixture Controls

Fuel Recommendations

Specifies methanol-based fuel with castor oil, synthetic lubricant, and nitromethane for optimal performance.

Fuel Tank and Filter

Guidance on fuel tank capacity, pressurization, and the importance of an in-line fuel filter.

Mixture Controls

Explains the roles of the Needle Valve and Mixture Control Valve for fuel/air mixture adjustment.

Needle-Valve Adjustment

Optimum Needle Setting

Describes how to adjust the needle-valve for the best high-pitched exhaust note and optimal performance.

Mixture Control Valve Adjustment

Details how to adjust the Mixture Control Screw for proper throttle response and idle stability.

Realigning Mixture Control Valve

Procedure to reset the Mixture Control Valve to its standard position if inadvertently moved.

Care and Maintenance

General Maintenance

Emphasizes avoiding dust, keeping fuel containers closed, and cleaning fuel filters periodically.

Fuel Effects on Engine

Warns about potential corrosion from alcohol-based fuels and nitromethane, advising lean settings avoidance.

Storage and Long-Term Care

Provides instructions for engine storage, including cleaning with alcohol and injecting after-run oil.

O.S. Genuine Parts & Accessories

Mounts and Plugs

Lists optional parts like Radial Motor Mount and recommended O.S. Glow Plugs (No.6, 7, 8).

Hardware and Filters

Includes items such as Spinner Nut, Propeller Nut Sets, Super Filter, and Non-Bubble Weight.

Tools

Recommends the Long Socket Wrench with Plug Grip for easy glowplug removal and replacement.

Technical Specifications and Diagrams

Engine Exploded View

Detailed diagram showing the assembly of the engine's main components.

Engine Parts List

Comprehensive list of engine parts with corresponding code numbers and descriptions.

Carburetor Exploded View

Diagram illustrating the assembly of the carburetor, including the mixture control valve.

Carburetor Parts List

Detailed list of carburetor components with code numbers and descriptions.

Three View Drawing

Provides dimensional drawings and key specifications like displacement, bore, stroke, and RPM.

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