Related Manuals for ULPOWER UL520
Summarization of Contents
Preface
Remarks
General notes on diagrams, specifications, and other manuals.
Modifications
Information on product improvements and ULPower's right to change designs.
Engine Serial Number
Importance of indicating the serial number for inquiries and orders.
Repeating Symbols
Explains symbols used for warnings, attention, and notes.
Cylinder Denomination
UL260 / UL350 Cylinder Identification
Diagram showing cylinder numbering for UL260 and UL350 engines.
UL390 / UL520 Cylinder Identification
Diagram showing cylinder numbering for UL390 and UL520 engines.
System Descriptions
Lubricant System
Describes the oil pump, filter, and oil gallery lubrication process.
Fuel System
Details the fuel flow from tanks through filters to injectors and regulator.
Electronic Engine Management
Explains ECU control of mixture, timing, and other engine functions.
Cooling System
Information on air and oil cooling, and mandatory installation of ducts and oil cooler.
Check Light System
Check Light Sensor Inputs
Details sensors like CPS, TPS, OTS, ATS, APS that inform the ECU and trigger the check light.
General Operating Limits - Part 1
Speed and RPM Limits
Specifies maximum, recommended, and idle engine speeds and RPM requirements.
Running-in and Performance Data
Guidelines for breaking in engines and presenting performance data.
General Operating Limits - Part 2
Oil Pressure and Temperature Limits
Specifies maximum, minimum, and normal oil pressure and temperature values.
Cylinder Head and EGT Limits
Defines maximum CHT values and notes on EGT for engine monitoring.
Acceleration and ECU Environment Limits
Covers acceleration limits and ECU operating temperature range.
General Operating Limits - Part 3
Air Temperature and Fuel Pressure
Covers manifold, outside air temperatures, and relative fuel pressure ranges.
Bank Angle and Electrical Power
Details limits for bank angle and requirements for electrical power.
Operating Media
Fuel Recommendations
Specifies unleaded automotive fuel types and octane ratings for different engine models.
Lubricant Recommendations
Recommends specific engine oils and cautions against break-in oils.
Standard Operation: Pre-flight Checks
Daily/Pre-flight Checks
Lists essential checks to perform before each flight for safety and readiness.
Engine Start Procedure
Step-by-step guide for starting the engine safely and correctly.
Standard Operation: Pre-takeoff and Cruise
Pre-takeoff Procedures
Covers warming up, idle speed, throttle response, and ignition tests before flight.
Takeoff and Cruise Operations
Guidelines for using take-off power and setting power during cruise.
Abnormal Operation: Ignition and Speed Issues
Abnormal Running on Ignition Check
What to do if there's a difference when running on one or two ignition coils.
Sudden Engine Stop
Procedures for handling a sudden engine stoppage and pre-restart checks.
Reaching Maximum Engine Speed
How the engine behaves at its RPM limit and how to respond.
Abnormal Operation: Temperature and Pressure Issues
Exceeding Max. Cylinder Head Temperature
Actions to take if CHT exceeds limits, including emergency landing.
Exceeding Max. Oil Temperature
Actions to take if oil temperature exceeds limits, including emergency landing.
Oil Pressure Issues
What to do if oil pressure drops below minimum or exceeds maximum.
Abnormal Operation: Fuel, CHT/EGT, and Battery Issues
Fuel Pressure & Knocking Issues
Addresses fuel pressure deviations, knocking, and octane rating.
CHT/EGT Drop & Low Battery Voltage
Covers single cylinder CHT/EGT drops and low battery voltage procedures.
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