TM 5-4320-300-144-23. ALTERNATOR AND FAN DRIVE BELTS (CONT)Location/ItemActionRemarks2. AlternatorRemove.drive belts3. Cooling fanLoosen pulley bracket boltsassemblyand jostle pulley to loosenbracket.4. Fan drive beltRemove.REPLACEMENTNOTEReplace belts as a matched set. The are matched to 0.032 inch (0.013 cm)of their specified center distances.5. AlternatorInstall matched replacement belts. Tighten indrive beltsposition by pulling alternator away from engine.6. Upper and lowerTighten.alternator ad-justment bolts7. AlternatorDepress each belt in turn midpointdrive beltbetween pulleys. Belts shouldtensiondeflect 1/2-3/4 inch(12.7-19 mm). If belttension is incorrect,loosen adjustmentbolts slightly andpull alternator awayfrom engine to tightenbelts, or push it towardengine slightly to loosen.Retighten bolts.4-109
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