0069 00TM 1-6625-724-13&P0069 00-6TASK 1 - TEST EQUIPMENT INSTALLATION/CHECKOUTFigure 2. Typical AVA Test Setup ConfigurationPROCEDURE 1: EQUIPMENT INSTALLATIONa.Remove AVA blade tracking equipment from transport case. Check for possible damaged equipment andfrayed cables. Figure 2 is the typical AVA test setup configuration.b.Install DAU in canvas carrying case.c.Place DAU in right forward facing troop seat with connectors facing up and secure DAU using aircraft shoulderand lap belts and canvas straps. If no seats are installed, the DAU may be secured to the D-rings found on theaircraft cabin floor.d.Connect power cable (29104700) to aircraft’s 28 Vdc utility receptacle at station 293, right side, on cabinceiling and to DAU receptacle marked 28 Vdc.e.Place CADU in aircraft. Connect CADU to DAU cable (29325601 or 29325603) to CADU and to DAUreceptacle marked CADU.PROCEDURE 2: MAGNETIC RPM SENSOR INSTALLATIONa.Figure 3 is a typical magnetic RPM sensor installation. Remove outer jam nut from magnetic RPM sensor(27288400) and install sensor into bracket on stationary swashplate. Reinstall the outer jam nut, but do nottighten.b.Turn main rotor head and line up magnetic RPM sensor with sensor interrupter on the rotating swashplate.NOTEWhen the magnetic RPM sensor and sensor interrupterare aligned, the black blade must be over the nose of thehelicopter. Figure 3 shows a typical magnetic RPMsensor installation.c.Adjust clearance between magnetic RPM sensor and sensor interrupter to 0.022 to 0.024 inch. Tighten outerjam nut on magnetic RPM sensor until a sharp rise in torque is felt, then tighten more with 1/6 to 1/3 turn.Install lockwire.d.Connect magnetic RPM sensor cable (29105403) to magnetic RPM sensor.
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