Table 2-1. Organizational Preventive Maintenance Checks and Services - Continued

TM 5-4320-306-24 Table 2-1. Organizational Preventive Maintenance Checks and Services - Continued W - Weekly Q - Quarterly M - Monthly S - Semiannually Item Interval Item To Be No. W M Q H Inspected Procedures 6 V-Belts, V- Check V-belt tension When V-belt is Belt Pulleys, pressed with forefinger at the mid- Alternator point between pulleys, it should deflect Fan, and Air 1/2-3/4 inch (12 7-19.0 mm) If V-belts Guide Ring- are damaged, replace as a set. Continued Determine whether detected V-belt damage has been caused by damaged or worn pulleys. Be sure damaged or worn pulleys are replaced prior to replacing V-belts Pulley Check. Check alternator pulley (2), cooling blower pulley (3), idler pulley (4), and crankshaft pulley (5) for sharp edges, nicks, corrosion, or wear sufficient to form sharp edges on pulley outside diameters. Check all pulleys for loose- ness on shafts Check nut and lockwasher (6), hex bolt and nut (7), waisted bolt and washer (8), and washer and hex nut (9) for tightness and corrosion Alternator Fan, Blower Blades, and Guide Ring Check. Check alternator fan (1) for damaged blades which could interfere with rota- tion or damage the V-belt Check blower blades (2) for damage which could interfere with rotation or damage the V-belt 2-16