TM 5-3895-370-14&P
Table 4-4. Unit Troubleshooting Procedures - CONT.
Malfunction
Test or inspection
Corrective action
ELECTRICAL SYSTEM (CONT)
26.
FLOW RATE INDICATOR DOES NOT OPERATE (CONT).
Step 5. Check voltage on extension output lead at rate indicator.
If 12 ±3 vdc is not measured, repair or replace wire.
If 12 ±3 vdc is measured, go to step 6.
Step 6. Check resistance across rate indicator resistor.
If 10K ±2 ohms is not measured, replace resistor (para 4-149).
If 10K ±2 ohms is measured, fault not corrected. Notify supervisor.
Step 7. Check voltage on voltage reducer at rate indicator terminal.
If 12 ±3 vdc is not measured, replace voltage reducer (para 4-73).
If 12 ±3 vdc is measured, go to step 8.
Step 8. Check continuity across wire between voltage reducer and fuse holder.
If there is no continuity, repair or replace wire.
If there is continuity, go to step 9.
Step 9. Check continuity across fuse.
If there is no continuity, replace fuse.
If there is continuity, go to step 10.
Step 10. Check voltage on fuse wire at rate indicator switch.
If there 12 +3 vdc is not measured, repair or replace wire.
If there 12 ±3 vdc is measured, go to step 11.
Step 11. Check continuity across rate indicator switch.
If there is no continuity, replace switch (para 4-72).
If there is continuity, go to step 12.
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