Maintenance Manual 190-02472-02G3X Touch EFIS Part 23 AML STC Revision 2Page 71Figure 6-10 – Carburetor Air Temperature Sensor Mounting6.6.1.4 Fuel FlowThe fuel flow transducer may be mounted with a bracket or clamps on the hoses. Reinstall the fuel flowtransducer as follows: Install the mounting clamps (if used) within 6 inches of the nearest face of the transducer. Install it with the fuel flow direction matching the direction marked on the ports and the wires are notpointing downward. Ensure the hose connected to the IN port are straight for a minimum of 4 inches. Ensure the length of hose connected to the OUT port should be level or slope up. It must not slopedown more than 4 inches per foot.The hoses and fittings connected to fuel flow transducer must meet the following requirements: Fuel hoses must not be subject to engine or other movement that could loosen the fittings. Replacement hoses must have the same internal diameter as the hose being replaced and meetTSO-C53a Type C or D fire resistant specifications. Use fuel compatible thread sealant or tape for the NPT threads. To reduce the risk of fuel systemcontamination, a minimal amount of sealant should be applied, leaving at least two threads at theend of the fitting clear of sealant/tape. Before connecting any hoses, thoroughly clean and flush thetransducer and hoses to insure they are free of any loose material. Fitting torque must not exceed 12 ft-lbs, or two full turns past finger tight, whichever occurs first.
