De Havilland DASH8 100 Series User Manual

**ON A/C ALL
ENGINE FUEL INDICATING − GENERAL
1. General
Engine fuel indicating associated with the engine fuel and control system consists of a fuel
low pressure warning system, a fuel flow indicating system and a fuel temperature indicating
system for each engine. The systems for each engine have like components and are identical
in operation.
Fuel low pressure warning consists of a fuel low pressure switch, sensing fuel pump inlet
pressure and connected by electrical wiring to the caution lights system. Fuel flow indicating
is by means of a transmitter sensing fuel flow to the engine fuel manifold, connected by
electrical wiring to an indicator on the engine instrument panel. Fuel temperature indicating is
by means of a transmitter sensing temperature at the fuel pump inlet, connected by electrical
wiring to an indicator on the engine instrument panel.
For location of the fuel low pressure switches, and fuel flow and fuel temperature transmitter,
refer to ENGINE FUEL AND CONTROL − GENERAL, Figure 1.
Other indications associated with the fuel system are fuel quantity indicating systems, one for
each fuel tank; refer to Chapter 28.
DSERIES 100
AIRCRAFT MAINTENANCE MANUAL
MASTER
EFFECTIVITY: See Pageblock 73−30−00 page 1
73−30−00
Page 1
Dec 20/2004

De Havilland DASH8 100 Series Specifications

General

Manufacturer	De Havilland Canada
Model	DASH8 100 Series
Type	Regional Airliner
First Flight	June 20, 1983
Introduction	1984
Produced	1983–2005
Number Built	299
Length	22.25 m (73 ft 0 in)
Wingspan	25.91 m (85 ft 0 in)
Height	7.49 m (24 ft 7 in)
Service Ceiling	7, 620 m (25, 000 ft)
Primary Users	Various airlines worldwide
Crew	2 pilots
Capacity	37 passengers
Engines	2 × Pratt & Whitney Canada PW120A turboprop engines
Engine Power	1, 800 shp (1, 340 kW) each
Max Takeoff Weight	16, 465 kg (36, 300 lb)

Summary

FUEL LOW PRESSURE WARNING – DESCRIPTION AND OPERATION

FUEL FLOW INDICATING – DESCRIPTION AND OPERATION

Fuel Flow System Components and Operation

Details the fuel flow transmitter and indicators, including their function and location.

FUEL FLOW INDICATING – MAINTENANCE PRACTICES

Fuel Flow Component Maintenance

Provides procedures for removing and installing fuel flow indicators and transmitters.

FUEL TEMPERATURE INDICATING – DESCRIPTION AND OPERATION

Fuel Temperature System Components and Operation

Describes the fuel temperature transmitter and dual indicator, including their function.

TORQUE INDICATING SYSTEM – DESCRIPTION AND OPERATION

Torque Indicating System Components and Operation

Explains the torque measuring system and indicators for engine torque.

TORQUE INDICATING (TI) CALIBRATION TEST − MAINTENANCE PRACTICES

Torque Indicating System Calibration Test

Details the adjustment and test procedures for the torque indicating system.

HIGH PRESSURE COMPRESSOR ROTOR SPEED (NH) INDICATING SYSTEM − DESCRIPTION AND OPERATION

NH Indicating System Components and Operation

HIGH PRESSURE COMPRESSOR ROTOR SPEED (NH) INDICATING SYSTEM CALIBRATION CHECK − MAINTENANCE PRACTICES

NH Indicating System Calibration Check

Details the adjustment and test procedures for the NH indicating system.

LOW PRESSURE COMPRESSOR ROTOR SPEED (NL) INDICATING SYSTEM − DESCRIPTION AND OPERATION

NL Indicating System Components and Operation

INTERTURBINE TEMPERATURE INDICATING SYSTEM − DESCRIPTION AND OPERATION

ITT Indicating System Components and Operation

INTER−TURBINE TEMPERATURE INDICATOR (ITT) CALIBRATION TEST − MAINTENANCE PRACTICES

ITT Calibration Test Procedures

Details the adjustment and test procedures for the ITT indicator.

OIL PRESSURE INDICATING SYSTEM − DESCRIPTION AND OPERATION

Oil Pressure System Components and Operation

OIL TEMPERATURE INDICATING SYSTEM

Oil Temperature System Components and Operation

PROPELLER SYNCHROPHASING SYSTEM − DESCRIPTION AND OPERATION

Propeller Synchrophasing System Description

PROPELLER RPM (NP) INDICATING SYSTEM − DESCRIPTION AND OPERATION

Propeller RPM Indicating System Description and Operation

Propeller RPM (NP) Indicating System − Calibration Check

Propeller RPM Indicating System Calibration Check

Details the adjustment and test procedures for the propeller RPM indicating system.