JT8 engine 2

LINE & BASE MAINTENANCE

TRAINING

(Part 2)

By Ccoyure Tito

FUEL SYSTEM6

FUEL SYSTEM OVERVIEW

Components - Engine Left Side

Fuel System Components - Left Side

Components - Engine Right Side

Fuel System Components - Right Side

FUEL PUMP

Fuel Pump

Fuel Pump

FUEL DEICING AIR SHUTOFF VALVE ACTUATOR

Fuel Deicing Air Shutoff Valve Actuator

FUEL DEICING HEATER

Fuel Deicing Heater

FUEL DEICING CONTROL AND INDICATION

Fuel Deicing Control And Indication

Fuel Deicing Control And Indication

• Control Fuel Heat Valves.

Fuel Deicing Control And Indication

• Monitor position of Fuel HeatValves.

• Extinguished - Valves closed

Fuel Deicing Control And Indication

• 0° C or less.

Fuel Deicing Control And Indication

Fuel Deicing Control And Indication

FUEL CONTROL UNIT

Fuel Control Unit

Fuel Control Unit

Fuel Control Operation

Fuel Control Schematic

FUEL/OIL COOLER

Fuel/Oil Cooler

PRESSURIZING AND DUMP (P&D) VALVE

Pressurizing And Dump Valve

Pressurizing and Dump Valve

P&D Valve (operating modes)

Both fuel flows

FUEL MANIFOLDS

Fuel Manifolds

FUEL NOZZLES

Typical Fuel Nozzle And Supports

Typical Fuel Nozzle And Supports

Fuel Flow Sequence

JT8D FUEL SYSTEM SCHEMATIC

JT8D Fuel System Schematic

JT8D Simplified Fuel Control

Fuel Flow Sequence

REVIEW QUESTIONS

REVIEW QUESTIONS

IGNITION SYSTEM7

IGNITION SYSTEM COMPONENTS

Control Stand

Control Stand

Control Panel

Ignition System Components

Ignition System Components

DESCRIPTION AND OPERATION

Ignition System Electrical Flow

DESCRIPTION AND OPERATION

Typical 20-4 Joule Ignition System

Description And Operation

Typical 20 Joule Ignition System

Ignition System

Ignition System

Ignition System

REVIEW QUESTIONS

OIL SYSTEM8

Oil System Overview

Oil System Components

Oil System External Components

PRESSURE SUBSYSTEM

Pressure Subsystem Schematic

OIL TANK

Oil Tank

Oil Tank

MAIN OIL PUMP

Oil Pump

MAIN OIL FILTER

Main Oil Filter

DE PAPEL

c/20 Hrs.

DE METAL

c/150-200 Hrs.

CLEANABLEPRESS DROP: 5 PSI

CLEANABLEPRESS DROP: 7-9 PSI

DISPOSABLEPRESS DROP: 3-4 PSI

OIL PRESSURE REGULATING VALVE

Oil Pressure Regulating Valve

Engine Oil Pressure Adjustment

OIL PRESSURE REGULATING VALVE

Oil Pressure Regulating Valve

Engine Oil Pressure Adjustment

FUEL/OIL COOLER

Fuel/Oil Cooler

SCAVENGE SUBSYSTEM

Scavenge System Squematic

SCAVENGE PUMPS

Scavenge Pump

SCAVENGE OIL DEAERATOR

Oil Tank Deaerator

BREATHER SUBSYSTEM

Breather Subsystem Schematic

MAIN ACCESSORY GEARBOX DEOILER

Main Accessory Gearbox Deoiler

JT8D OIL SYSTEM SCHEMATIC

MAIN GEARBOX

Main Accessory Gearbox

REVIEW QUESTIONS

REVIEW QUESTIONS

REVIEW QUESTIONS

LINE & BASE MAINTENANCE

TRAININGFinish Part 2