TM 1-6625-724-13&P0071 000071 00-9TASK 1 – TEST EQUIPMENT INSTALLATION/CHECKOUTNOTEIf magnetic sensor is operational through SPU interface itis not necessary to disconnect the aircraft wiring andinterface may be used without externally wiring this sensor.e. Disconnect the existing cable from the magnetic rpm sensor, and secure cable with a tie wrap to a convenientlocation.f. Connect magnetic rpm sensor cable (29105403) to the magnetic rpm sensor. Route the cable along wirebundle above R200 panel forward, and secure to cable with wire ties. Go across the front of the transmissionupper pylon and secure cable to wire bundle above L200. Route cable out of forward upper pylon ventilationair intake panel out side the aircraft. Route cable down left side of the aircraft, securing to left upper hand holdand into emergency air vent. Route cable under transparent barrier to DAU.g. For AH-64D route cable outside the aircraft. Secure cable to existing handholds, and clamp as necessary.Pass cable into forward cockpit through 5L90 access panel.h. Connect magnetic rpm sensor cable to the DAU receptacle marked TACHO 1.Figure 3. Lateral Accelerometer Installation (SPU/External Wiring)Figure 4. Vertical Accelerometer Installation (External Wiring)AH-64AVerticalAccelerometerAH64DVerticalAccelerometer
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