Technical data

13773-001
73-30
Page 1
INDICATING
1. DESCRIPTION
This section describes that portion of the engine fuel system which is used to indicate the flow rate. This
includes the MAP/fuel flow gage and fuel flow transducer.
The Fuel Flow Transducer located between the throttle body metering valve and the injector manifold is
mounted on the RH inter-cylinder baffling. The electrically operated Fuel Flow Transducer transmits fuel
flow rate data to the cockpit Fuel Flow gage.
2. MAINTENANCE PRACTICES
A. Map/Fuel Flow Gage (Refer to 77-10)
B. Fuel Flow Sensor (See Figure 73-301)
(1) Removal - Fuel Flow Sensor
(a) Ensure BAT 1, BAT 2, and AVIONICS master switches are in off position.
(b) Pull ENGINE INSTRUMENT circuit breaker.
(c) Remove engine cowling. (Refer to 77-10)
(d) Disconnect transducer electrical connector at firewall
(e) Disconnect adel clamps securing transducer wiring to engine.
(f) Disconnect fuel lines from fittings and cap.
(g) Remove bolts and washers securing fuel-flow sensor assembly to inter-cylinder baffling
and remove unit from airplane.
(2) Installation - Fuel Flow Sensor
(a) Position fuel-flow sensor assembly on inter-cylinder baffling and install bolts and washers.
(b) Connect fuel lines to fittings.
(c) Connect transducer electrical lead at firewall.
(d) Secure transducer wiring to engine with adel clamps.
(e) Install engine cowling. (Refer to 71-10)
(f) Reset ENGINE INSTRUMENT circuit breaker.
30 Nov 2000