Rotax 914 UL Series User Manual

9 UL 96-D/E
March 1998
SERVICE INFORMATION
SERVICE INFORMATIONSERVICE INFORMATION
Seite/page 1 of 6
SERVICE INFORMATION
SERVICE INFORMATIONSERVICE INFORMATION
1) Wiederkehrende Symbole
Bitte, beachten Sie die folgenden Symbole, die Sie durch die Service-Information
begleiten:
▲ WARNUNG: Warnhinweise und Maßnahmen, deren Nichtbeachtung zu Verlet-
zungen oder Tod für den Betreiber oder andere, dritte Personen
führen können.
■ ACHTUNG: Besondere Hinweise und Vorsichtsmaßnahmen, deren Nichtbe-
achtung zu Beschädigungen des Motors und zum Gewährleistungs-
ausschluß führen können.
◆ HINWEIS: Besondere Hinweise zur besseren Handhabung.
2) Einführung
Diese Informationen sollen dem Flugzeugbauer und Betreiber helfen, korrekte
Betriebsbedingungen und Installation zu gewährleisten und dadurch optimale Lei-
stung und Zuverlässigkeit zu erzielen.
3) Technische Daten und allgemeine Information über den Motor
Ergänzend zu dieser Information ist folgendes zu beachten:
➪ gültiges Motor-Handbuch
➪ Technisches Datenblatt
➪ Leistungs-, Drehmoment- und Verbrauchskurven
➪ Aktuelle Ersatzteileliste
➪ Einbauhinweise und -checkliste für den Motor
➪ alle Service-Informationen über die betroffene Motortype
➪ Reparaturhandbuch
1) Repeating symbols
Please, pay attention to the following symbols throughout the service info. emphasiz-
ing particular information.
▲ WARNING: Identifies an instruction, which if not followed, may cause serious
injury or even death.
■ ATTENTION: Denotes an instruction which if not followed, may severely damage
the engine or other components.
◆ NOTE: Information useful for better handling.
2) Introduction
This information is intended to assist the aircraft designer, manufacturer and builder
to achieve correct operating conditions and assembly for the engine and conse-
quently optimum performance and reliability.
3) Technical data and general information
In addition to this technical information refer to:
➪ current issue of the Operator´s Manual
➪ engine data sheet
➪ power, torque and fuel consumption curves
➪ current issue of the spare parts list
➪ engine installation instruction and installation check list
➪ all service information regarding your engine
➪ Repair manual
NUR ZUR INFORMATION.
ÄNDERUNGSDIENST NICHT VORGESEHEN.
AUSTAUSCH DES ÖLPUMPENGEHÄUSES ROTAX 914 UL
AUSTAUSCH DES ÖLPUMPENGEHÄUSES ROTAX 914 UL
ROTAX 914 UL EXCHANGE OF THE OILPUMP HOUSING
ROTAX 914 UL EXCHANGE OF THE OILPUMP HOUSING
Vorgeschrieben / mandatory
Vorgeschrieben / mandatory
Vorgeschrieben / mandatory
d02984

Rotax 914 UL Series Specifications

General

Compression Ratio	9.0:1
Fuel System	Electronic Fuel Injection
Type	4-stroke, turbocharged
Configuration	Horizontally opposed
Displacement	1211 cc
Bore	79.5 mm
Stroke	61 mm
Max Power	115 hp @ 5800 rpm
Fuel Type	Mogas or Avgas
Oil System	Dry sump
Cooling System	Liquid-cooled
Reduction Gear Ratio	2.43:1
TBO (Time Between Overhaul)	2, 000 hours
Additional Features	Turbocharged

Summary

Service Information Introduction and Symbols Guide

Explanation of Service Symbols

Details the meaning of warning, attention, and note symbols used in this document.

Purpose of the Service Information

Outlines the intent to assist aircraft designers, manufacturers, and builders with engine operation and assembly.

References to Related Technical Documents

Lists essential documents like operator's manual, data sheets, performance curves, and repair manuals.

Scope and Requirements for Oil Pump Housing Exchange

Affected Engines and Exchange Purpose

Identifies specific engine serial numbers and pre-production models requiring the modified oil pump housing.

Compliance Timeline and Procedure

Specifies the deadline for the exchange during the next 100-hour check and outlines the general procedure.

Oil Pump Housing Replacement: Preparation and Disassembly

Pre-Conversion Preparations

Steps for disconnecting battery, draining oil, and removing the oil filter before commencing work.

Disconnecting Oil Pump Connections

Instructions on how to detach oil hoses, banjo bolts, and sealing rings from the oil pump assembly.

Detailed Oil Pump Disassembly

Step-by-step guide for taking apart the oil pump assembly and its internal components.

Component Inspection and Disposal

Procedures for cleaning, visually inspecting all parts, and properly scrapping the old oil pump housing.

Oil Pump Housing Replacement: Assembly and Final Checks

Reassembly of the Oil Pump

Guide for installing the shaft, rotors, pegs, and housing of the new oil pump with correct lubrication.

Installation of Oil Lines and Filter

Instructions for connecting oil lines, fittings, and mounting the new oil filter with torque specifications.

Post-Assembly Verification and Maintenance

Steps for checking leaks, oil level, and performing the required oil change after the replacement.