Table 4-2. Troubleshooting (Cont)

TM 5-6115-584-12 NAVFAC P-8-622-12 TO-35C2-3-456-1 TM-05682C-12 Table 4-2. Troubleshooting (Cont) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 14. 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 SUPPRESSION 4-14. GENERAL METHODS FOR PROPER SUP- PRESSION. Essentially, suppression is attained by providing a low resistance path to ground for stray currents. The methods used include shielding the ignition and high- frequency wires, grounding the frame with bonding straps, and using filtering systems. 4-15. RADIO INTERFERENCE SUPPRESSION COM- PONENTS. a. Primary Suppression Components. The primary suppression components are those whose primary function it is to supress radio interference. The pri- mary suppression components are shown in figure 4-3. b. Secondary Suppression Components. These com- ponents have radio interference suppression functions which are incidental or secondary to their primary function. They are the internal-external tooth lock- washers on the fuel pumps and battery charging reg- ulator-rectifier. 4-10