TM 5-4320-300-14Table 4-2. Organizational Maintenance Troubleshooting - ContinuedMALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONAdjust fan drive belts by loosening four bolts on the pulley bracket. Slide pulley bracket up totighten drive belts. Tighten the four bolts after adjusting drive belts. If fan drive belts are frayedor worn, replace as a matched set as described in paragraph 4-23.Step 4. Check for scale deposits in cooling system.WARNINGHot coolant may be released when radiator cap is removed. Allowengine to cool before removing cap. Open cap part way to ensurethat pressure in cooling system is released, then remove cap.4-66
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