MT-PROPELLER P-8S SERIES OPERATION AND INSTALLATION MANUAL Pdf Download (2024)

Table of Contents
Page 3: Table Of Contents Page 4: List Of Revisions Page 5: List Of Effective Pages Page 6: General Page 7: Model Application Page 8: Performance Data Page 9: Design And Operation Information Page 11: Installation And Operation Instruction Page 12: Inspections Page 13: Troubleshooting Page 14: Shipping And Storage Page 15: Governor Installation Record FAQs
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Hydraulic overspeed governor

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Table of Contents

  • Table of Contents

  • Table of Contents (Overview)

  • List of Revisions

  • List of Effective Pages

  • General

  • Model Application

  • Performance Data

  • Design and Operation Information

  • Installation and Operation Instruction

  • Inspections

  • Troubleshooting

  • Shipping and Storage

  • Governor Installation Record

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ATA 61-08-54

(E-3854)

(Avia Manual No. E-1625)

OPERATION- AND INSTALLATION MANUAL

HYDRAULIC OVERSPEED GOVERNOR

P-8S( )-( ) SERIES

Original Issue: 2021-08-13

The technical content of this document is approved under authority of DOA No.

EASA.21J.020.

EASA DE.21G.0008

EASA.21J.020

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Summary of Contents for MT-Propeller P-8S Series

  • Page 1 ATA 61-08-54 (E-3854) (Avia Manual No. E-1625) OPERATION- AND INSTALLATION MANUAL HYDRAULIC OVERSPEED GOVERNOR P-8S( )-( ) SERIES Original Issue: 2021-08-13 The technical content of this document is approved under authority of DOA No. EASA.21J.020. EASA DE.21G.0008 EASA.21J.020...
  • Page 2 Manual. Please give it your attention, especially the section dealing with Inspections and Checks. Thank you for choosing a MT-Propeller governor, manufactured by AVIA Propeller. Properly maintained it will give you many years of reliable service.

  • Page 3: Table Of Contents

    ATA 61-08-54 Page 2 Original Issue 2021-08-13 TABLE OF CONTENTS Page Table of Contents (Overview) List of Revisions List of Effective Pages General Model Application Performance Data Design and Operation Information Installation and Operation Instruction Inspections Trouble Shooting Shipping and Storage Governor Installation Record...

  • Page 4: List Of Revisions

    ATA 61-08-54 Page 3 Original Issue 2021-08-13 LIST OF REVISIONS Rev. No. Date of Issue Page Description Original Issue 2021-08-13 Original Issue...

  • Page 5: List Of Effective Pages

    ATA 61-08-54 Page 4 Original Issue 2021-08-13 LIST OF EFFECTIVE PAGES Page Date of Issue 2021-08-13 2021-08-13 2021-08-13 2021-08-13 2021-08-13 2021-08-13 2021-08-13 2021-08-13 2021-08-13 2021-08-13 2021-08-13 2021-08-13 2021-08-13 2021-08-13 2021-08-13...

  • Page 6: General

    ATA 61-08-54 Page 5 Original Issue 2021-08-13 GENERAL The P-8S( )-( ) hydraulic overspeed propeller governors are single acting governors developed for hydraulically variable pitch propellers to protect propellers against overspeeding. Statement of Purpose This publication provides operation, installation and line maintenance information for the MT- Propeller governors.

  • Page 7: Model Application

    ATA 61-08-54 Page 6 Original Issue 2021-08-13 MODEL DESIGNATION P - 8 S X - X Legend:  Propeller Governor / Overspeed Governor manufactured by AP  Overspeed Governor  Solenoid valve for resetting, AND 20010 drive pad modified (TP-100) Solenoid valve for resetting, AND 20010 drive pad Solenoid valve for resetting and feathering, AND 20010 drive pad reserved...

  • Page 8: Performance Data

    ATA 61-08-54 Page 7 Original Issue 2021-08-13 PERFORMANCE DATA Range of acceptable operation temperature from -16°C (+3.2°F) to +150°C(+302°F). The break away torque with engine oil SAE No. 40 at 4.5°C (+40°F) is 40 Nm ( 30 ft lbs) The torque required at 220 psi and 2700 rpm is 0,1 Nm ( 0,8 inch lbs) DIMENSIONS Fig.

  • Page 9: Design And Operation Information

    ATA 61-08-54 Page 8 Original Issue 2021-08-13 DESIGN AND OPERATION INFORMATION The Avia Propeller aircraft overspeed governors P-8S( )-( ) are base mounted centrifugal overspeed governors for use with single acting constant speed propeller control systems on turboprop engines. The propeller overspeed governor is located on the reduction gearbox. It limits propeller RPM should the primary propeller governor fail.
  • Page 10 ATA 61-08-54 Page 9 Original Issue 2021-08-13 ON-SPEED If the primary propeller governor is in failure mode or the overspeed governor is in reset condition, the overspeed governor controls the propeller speed, if other circ*mstances (engine power, velocity, …) enable propeller to reach speed setting. In this condition the forces action on the engine-overspeed governor-propeller combination is in a state of balance.

  • Page 11: Installation And Operation Instruction

    ATA 61-08-54 Page 10 Original Issue 2021-08-13 INSTALLATION AND OPERATION INSTRUCTION a) If applicable: Remove old overspeed governor per aircraft service instructions. Prepare new mounting gasket, P/N B-20024. Coat gasket with engine oil or equivalent before installation. b) Check that mounting studs project a minimum of 31,75 mm (1.250 inch) from face of engine pad. c) Clean engine pad, studs and mounting hardware before installing new mounting gasket.

  • Page 12: Inspections

    ATA 61-08-54 Page 11 Original Issue 2021-08-13 INSPECTIONS Check for oil leakage. Check oil leakage immediately after engine stop. Check oil leakage at governor’s surface and at mounting pad. If oil leakage is detected, check stop nuts at the governor housing and the mounting nuts. Torque if necessary.

  • Page 13: Troubleshooting

    ATA 61-08-54 Page 12 Original Issue 2021-08-13 TROUBLESHOOTING Propeller speed is not reduced by pressing TEST button – Possible Causes: a) The solenoid is not energized Check voltage on the connector after pressing the TEST button. If no voltage appears, check aircraft electric circuits.

  • Page 14: Shipping And Storage

    ATA 61-08-54 Page 13 Original Issue 2021-08-13 SHIPPING AND STORAGE Conservation Inner conservation is automatically done by engine oil. Attach cover cap. After installing the overspeed governor the conservation is done together with engine in accordance with the instruction of the engine manufacturer. Outside conservation isn’t required.

  • Page 15: Governor Installation Record

    ATA 61-08-54 Page 14 Original Issue 2021-08-13 OVERSPEED GOVERNOR INSTALLATION RECORD Date Authorized Date Notes installed Signature removed...
  • Page 16 Avia Propeller distributor of the area in which the governor is firstly operated or to MT-Propeller itself within 30 days after date from starting operation. 2) No other warranties and/or guarantees than defined in the actual warranty conditions are made.
MT-PROPELLER P-8S SERIES OPERATION AND INSTALLATION MANUAL Pdf Download (2024)

FAQs

What gauges will the pilot use to control throttle setting and the propeller rpm on an aircraft with a constant speed propeller system? ›

Manifold Pressure (MP) gauges the engine's intake air pressure, indicating engine power, while RPM (Revolutions Per Minute) shows the engine and, by extension, propeller rotational speed, critical for efficiency during different phases of flight.

Read The Full Story ›
What are the materials used in the MT propeller? ›

The wooden core is reinforced by layers of epoxy fiberglass, Kevlar® or carbon fiber and sealed by several coatings of acrylic-polyurethane paint. An aluminum blade ferrule is attached to the blade root by using special design patented lag screws.

Learn More ›
Do you adjust RPM or manifold pressure first? ›

Pull the prop lever back until you decrease the rpm by about 100. Then increase the throttle about 1-2 inches of manifold pressure. The rpm should not increase.

Tell Me More ›
Should RPM be higher than manifold pressure? ›

Instructors often teach pilots to avoid power settings where the manifold pressure is numerically higher than the RPM. A common rule of thumb is to use "squared" power settings such as 24 inches MP and 2400 RPM.

View More ›
What is the best material for a propeller? ›

Boat Propeller Material

Stainless steel is the best choice if you want to be fast. John Scherrer is Mercury Racing's manager of propeller engineering and hydrodynamics engineering. Because it's stronger than aluminum, manufacturers can make thinner blades and decrease drag. You can also buy more propellers.

Explore More ›
What is the diameter of the MT propeller? ›

Hydraulic constant speed MT-Propeller
Model No.max. Diametermax. Power
MTV-19185cm/73in500HP
Oct 26, 2023

Tell Me More ›
What is the inside of a propeller called? ›

Hub: the hub or boss of a propeller is the solid center disc, bored for the propeller shaft, to which the propeller blades are attached.

Find Out More ›
What controls the constant speed range of a constant speed propeller? ›

The component that controls this entire system is called the propeller governor or Constant Speed Unit (CSU). A threaded shaft is connected to the pitch lever, with a speeder spring between the threaded shaft and the flyweights.

Tell Me More ›
What is the manifold pressure gauge on a constant speed prop? ›

There is a gauge for power changes on a constant speed prop aircraft. It is the manifold pressure gauge. This measures the pressure of the fuel air mixture being fed into the cylinders, more pressure equals more power. So in the constant speed unit, we have two controls for power and thrust.

Discover More Details ›
What does throttle control in a constant speed propeller? ›

Constant Speed propeller equipped airplanes have manifold pressure gauges which indicates the power output of the engine and is controlled by the throttle. The manifold pressure gauge measures the Manifold Absolute Pressure, or the absolute pressure of the fuel/air charge inside the intake manifold.

Discover More ›

How do you measure propeller RPM? ›

If you have a propeller speed reduction unit (PSRU) divide your gear ratio (i.e. 2.58) into the maximum engine RPM (i.e. 6800 rpm) to determine your propeller RPM (i.e. 2636 propeller RPM).

Get More Info Here ›
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