TM 9-2320-361-34 12-3. STEERING GEAR REPAIR (Contd) b. Cleaning and Inspection NOTE Magnifying glass is recommended for detailed parts inspection. For general cleaning instructions, refer to para. 2-8. Inspect plugs (2), (4), and (6) (para. 2-9). Replace if defective. Inspect side cover (7) and gasket mating surface for cracks or other damage. Replace if defective. Inspect wear limits on pitman shaft (5). For measurements, refer to Table 12-1, Steering Gear Wear Limits. Replace pitman shaft (5) if worn past limits. Inspect pitman shaft (5) for scoring, bends, and wear. Replace if defective. Inspect gear tube (9) for bends or damage. Replace if defective. Inspect gear tube cover (8) for cracks or breaks. Replace if defective. Inspect cam (13) for bends or cracks. Replace if defective. Inspect cam (13) for chipped, cracked, or scored bearing races and cam grooves. Replace if defective. Inspect cam bearings (12) and cups (11) for cracks or scoring. Replace if defective. Inspect gear housing (1) and gasket surfaces for cracks or other damage. Replace if defective. Inspect end cover (3) in gear housing (1) for oil leaks or damage. Replace if defective. Inspect tube bearing (10) for wear (TM 9-214). Replace if defective. Inspect pitman shaft taper stud bearings (12) for wear (TM 9-214). Replace if defective. Bend tang washer tabs (17) down on each bearing (18) and release nut (16). Check each nut (16) for bearing preload. Each bearing preload is 2.5-6 lb-in. (0.28-0.68 N.m) with rotating bearing. Replace if bearing(s) (18) will not rotate after correct preload is set. Inspect wear limits on pitman shaft bushings (14) and (15). For measurements, refer to Table 12-1, Steering Gear Wear Limits. Replace bushings (14) and (15) if worn past limits. Inspect pitman shaft bushings (14) and (15) in gear housing (1) for scoring, wear, or other damage. Replace if defective. Perform steps 17 through 19. Table 12-1. Steering Gear Wear Limits. ITEM WEAR LIMITS/TOLERANCES NO. lTEM/POINT OF MEASUREMENT INCHES MILLIMETERS 5 Pitman shaft (outside diameter) 1.372-1.373 34.85-34.87 14& 15 Pitman shaft bushing(s) (inner diameter) 1.373-1.375 34.87-34.93 12-8
