TM 5-3805-261-20COOLING SYSTEM MAINTENANCE.6-44.FanBelts.(Sheet 3 of 3)ADJUSTMENTNOTEOnly one belt is used to adjust belttension.1.Position belt tension gage on belt farthestfrom engine.2.Check tension of two new belts (3) with belttension gage. New belts should betightened to 120 + 5 ft-lb. Used belts shouldbe tightened to 90 + 10 ft-lb.3.Loosen three bolts (6, 7 and 8).4.Move alternator (1) on bracket (2) in, todecrease tension; out, to increase tensionon two belts (3).5.Tighten three bolts (8, 7 and 6).WARNINGClose screen and fasten beforeperforming next procedure. Failure todo so may cause INJURY. If injured,seek medical aid immediately.6.Start engine. Refer to TM 5-3805-261-10.Operate at high idle for a minimum of 30minutes.7.Stop engine.8.Check tension of two belts (3) with belttension gage. Make adjustment to correcttension if needed using procedure in steps 1thru 7.NOTEReturn 130G Grader to originalequipment condition.End of Task6-157
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