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Page Title: Table 3-7. Troubleshooting Chart
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TM 55-6695-220-13&P Table 3-7.  Troubleshooting Chart Malfunction Test or Inspection Corrective Action 1. Voltmeter pointer will not reach desired mark or retain setting when operating in the thermocouple tester mode. Step 1. Check 1.5V battery for voltage above 1.30 volts while connected to the circuit. If proper voltage is not indicated replace battery, para.  3-6a. Step 2. Check battery leads for broken wire. Repair broken conductor. 2. Voltmeter pointer will not reach desired mark or retain setting when operating in the pyrometer tester mode. Step 1. Check 45V battery for voltage above 40 volts while connected to the circuit. If proper voltage is not indicated replace battery, para.  3-6b. Step 2. Check battery leads for broken wire. If open circuit condition exists repair or replace wire. 3. Indicator reading is substantially different from temperature dial setting. Repeat test using a previously calibrated indicator. If discrepancy still exists, the pointer knob needs repositioning on shaft. 4. Tester behavior is different from function switch setting. Check function switch for loose knob. If knob is loose, rotate switch to OFF position and reposition knob to indicate the same position. 3-12

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