TM 5-6115-584-12NAVFAC P-8-622-12TO-35C2-3-456-1TM-05682C-12Table 4-2. Troubleshooting (Cont)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION14. BATTERIES DO NOT RETAIN CHARGE.Step 1. Check for blown alternator protection fuse (F1) (paragraph 4-27).Replace fuse.Step2. Check for bad battery or batteries (paragraph 4-25).Replace defective battery.Section VII. RADIO INTERFERENCE SUPPRESSION4-14. GENERALMETHODSFORPROPERSUP-PRESSION.Essentially, suppression is attained by providing a lowresistance path to ground for stray currents. Themethods used include shielding the ignition and high-frequency wires, grounding the frame with bondingstraps, and using filtering systems.4-15. RADIO INTERFERENCE SUPPRESSION COM-PONENTS.a. Primary Suppression Components. The primarysuppression components are those whose primaryfunction it is to supress radio interference. The pri-mary suppression components are shown in figure4-3.b. Secondary Suppression Components. These com-ponents have radio interference suppression functionswhich are incidental or secondary to their primaryfunction. They are the internal-external tooth lock-washers on the fuel pumps and battery charging reg-ulator-rectifier.4-10
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