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O.S. engine max-140rx User Manual

O.S. engine max-140rx
13 pages
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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 2-4 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 aircraft, radio control equipment, etc., are
accessible for checking at the same time.
1
2-4
5
6
7-8
8-9
9
10
11-13
13
14
15-16
16-17
17
18
19
20-21
22
23
24
CONTENTS
SAFETY INSTRUCTIONS AND
WARNINGS ABOUT YOUR O.S. ENGINE
INTRODUCTION, BASIC ENGINE PARTS
INSTALLATION
FUEL TANK, PIPING
GLOWPLUG
FUEL
PROPELLERS
TUNED SILENCER
CARBURETOR CONTROLS
STARTING
RUNNING-IN (Breaking-in)
MIXTURE CONTROL ADJUSTMENT
PD-06 FUEL PUMP -WARNING!
ENGINE CARE AND MAINTENANCE
CARBURETOR EXPLODED VIEWS
& PARTS LISTS
ENGINE EXPLODED VIEWS &
ENGINE PARTS LISTS
GENUINE O.S. PARTS & ACCESSORIES
ENGINE THREE VIEW DRAWINGS
MEMO
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O.S. engine max-140rx Specifications

General IconGeneral
Engine Type2-stroke
Fuel TypeGlow fuel
Bore32.0 mm
Glow PlugO.S. No.8
Shaft Diameter8mm

Summary

Safety Instructions and Warnings

General Safety Warnings

Covers critical safety points like propeller contact, fuel handling, heat, and enclosed spaces.

General Notes and Precautions

Details on engine purpose, mounting, silencer use, propeller selection, and starter use.

Introduction and Engine Parts

Introduction to the MAX-140RX

Details the design purpose, features, and target audience for the MAX-140RX engine.

Basic Engine Components

Identifies and illustrates key parts of the engine, including cylinder head, crankshaft, and carburetor.

Installing the Glow Plug

Provides instructions and diagrams for correctly fitting the glow plug into the engine.

Installation Details

Engine Mounting and Soft Mounts

Discusses secure engine mounting, vibration reduction, and potential power loss with soft mounts.

Throttle Linkage and Idling Setup

Explains throttle linkage setup, idling speed, and the use of the throttle stop screw.

Exhaust and Cowling Installation

Advises on securing the exhaust system and ensuring the engine/spinner clears the cowling.

Fuel Tank and Piping

Fuel Tank Setup and Pick-up

Details correct fuel tank installation and the usage of the fuel pick-up weight.

Fuel Line Installation

Provides guidance on using silicone tubing and securing fuel line connections.

Glow Plugs

Glow Plug Compatibility and Role

Discusses glow plug selection, ignition initiation, and automatic timing adjustment.

Glow Plug Life and Replacement

Covers extending glow plug life and indicators for replacement.

Fuel Selection

Fuel Selection and Lubrication

Advises on selecting suitable fuel, nitromethane content, and lubricant percentages.

Propellers

Propeller Selection and Safety

Guides on choosing propellers, balancing, safety locknut assembly, and handling damaged propellers.

Tuned Silencers

Tuned Silencer Importance and Setup

Explains the role of the tuned silencer, performance benefits, and effective pipe setting.

Header Pipe Length Adjustment

Adjusting Effective Header Pipe Length

Details the procedure for setting header pipe length for optimal performance and noise reduction.

Carburetor Controls

Carburetor Controls Overview

Describes the two adjustable controls on the Type 70A carburetor: Mixture Control and Throttle Stop screws.

Starting Procedure

Engine Starting Steps

Provides a step-by-step guide for safely starting the engine using an electric starter.

Starting Warnings and Precautions

Highlights crucial warnings like avoiding choking and checking for flooding before starting.

Running-In Procedure

Running-In Settings and Steps

Explains the required fuel, needle-valve settings, and procedure for breaking in the engine.

In-Flight Running-In

Advises on how to conduct running-in during initial flights, including mixture adjustments.

Mixture Control Adjustment

Mixture Control Adjustment Procedure

Details how to adjust the mixture control screw for proper idling and acceleration.

Troubleshooting Lean/Rich Idling

Explains how to diagnose and correct uneven idling or smoking due to mixture issues.

Fuel Pump Warnings

PD-06 Fuel Pump Precautions

Warns against disassembling the pump, moving its screw, or using sharp objects for cleaning.

Fuel Filter Recommendations

Stresses the importance of using fuel filters to prevent foreign matter from damaging the pump system.

Engine Care and Maintenance

Fuel System Cleaning and Storage

Covers cleaning the fuel system, emptying the tank, and preparing the engine for storage.

Post-Flight and Storage Procedures

Details draining fuel, running out residual fuel, and applying after-run oil for protection.

Carburetor Exploded View

70A Carburetor Parts List

Lists the components of the 70A carburetor with corresponding part numbers and descriptions.

Engine Exploded View and Parts List

Engine Exploded View

Provides a detailed exploded diagram of the engine components.

Engine Parts List

Lists all engine parts with their respective code numbers and descriptions.

Genuine O.S. Parts and Accessories

Recommended Parts and Accessories

Showcases genuine O.S. parts like glow plugs, filters, and tools for the engine.

Three View Drawing

Engine Specifications and Dimensions

Presents detailed three-view drawings with key engine dimensions and specifications.

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