TM 10-4320-226-144.10.7 Alternator Belt Maintenance.This task covers:4.10.7.1 Adjust4.10.7.3 Installation4.10.7.2 RemovalINITIALSETUPToolsGeneralSafety InstructionsGeneral Mechanic’s Tool Kit (appendix B,Section III, Item 1)To prevent rolling or sliding, do notwork on equipment that is not securelyEquipmentConditionsstabilized.Equipment shut down, refer toDo not work on equipment withoutparagraph 2.5.1.2 or 2.5.2.2.following standard shop safetyprecautions.V-belt guard removed (paragraph 4.10.6).4.10.7.1 Adjust.a.b.c.d.To prevent rolling or sliding, do not work on equipment that isnot securely stabilized.Ensure both wheels are secure.Failure to obey this warning may result in serious personalinjury.Measure belt deflection as shown in figure 4-11.Deflection should be 1/4inch.Loosen bolts (1 and 2) and reposition alternator to obtain desired beltdeflection of 1/4 inch.Hold alternator in place and ensure belt deflection is maintained at 1/4 inch.Tighten bolts (1 and 2).Repeat steps a, b and c until proper deflection is obtained.4.10.7.2 Removal.a.Loosen bolts (1 and 2).b.Push alternator (3) towards engine and remove V-belt (4).4.10.7.3 Installation.a.Position alternator V-belt (4) on alternator pulley (5) and crankshaftpulley (6).b.Move alternator (3) away from engine to tighten V-belt for 1/4 inch (6mm)deflection.c.Hold alternator (3) in place and ensure belt deflection is maintained.Tighten bolts (1 and 2).d.Measure belt deflection as shown in figure 4-11.Repeat steps b and c untilproper deflection is obtained.4-27
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