VIBRATION SENSOR FAILURE

TM 5-6350-275-24&P

Table 3-9. Sensors DS Maintenance Troubleshooting - Continued

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

7. VIBRATION SENSOR FAILURE (Figure 3-16)

NOTE

Refer to SAIG for details on vibration sensor.

Step 1. Check DV-201 sensor (1) to ensure sensor has no loose or missing hardware.

If sensor is not secure, tighten down and have operator check whether sensor is still in alarm condition.

If sensor is still in alarm, go to step 2.

Step 2. Check cabling (2) to ensure it is secured to sensor (1) and power source.

If cabling is not secure, secure it and recheck sensor assembly for alarm.

If cabling is secure, go to step 3.

Step 3. Remove two screws holding sensor front cover to assembly and remove cover (1).

Step 4. Using a digital multimeter, place multimeter leads across TB1 pins 1 and 2. The multimeter should read

approximately 12 vdc.

If multimeter reading is correct, replace sensor assembly (Para. 3-129).

If multimeter reading is not correct, replace power source.

If sensor is still in alarm, go to step 5.

Step 5. Set multimeter to ohms and check for continuity between sensor assembly and RADC.

If continuity is good, problem is not in sensor assembly. Refer to troubleshooting procedures for RADC.

If there is no continuity, replace wiring between sensor and RADC.

3-58