TM 9-2330-267-14&P4-45. HUB, WHEEL BEARING, AND BRAKEDRUM MAINTENANCE (Con’t).a.REMOVAL 1.Position jackstand under axle (16) and remove floor jack.2.Remove six screws (1), Iockwashers (2), hubcap (3), and gasket (4) from hub (10). Discard Iockwashers andgasket.3.Remove outer adjusting nut (5), keywasher (6), and inner adjusting nut (7) from hub (10) and axle (16).4.Pull hub (10) out slightly on axle (16) to loosen outer wheel bearing cone (8). Remove outer wheel bearing conefrom hub and axle.WARNINGDO NOT handle brakeshoes, brakedrums, or other brake components unless area hasbeen properly cleaned. There may be asbestos dust on these components which canbe dangerous if you touch it or breathe it. Wear an approved filter mask and gloves.Never use compressed air or a dry brush to clean brake components. Dust may beremoved using an industrial-type vacuum cleaner. Clean dust or mud away from brakecomponents with water and a wet, soft brush or cloth. Failure to follow this warning mayresult in serious illness or death to personnel.5.Remove hub (10) and drum (12) from axle (16) and backing plate (19).6.Tap inner wheel bearing cone (21), oil seal (20), and spacer sleeve (17) out of hub (10) or from axle (16). Discardoil seal.WARNINGDry cleaning solvent P-D-680 is toxic and flammable. Always wear protective gogglesand gloves, and use only in a well-ventilated area, Avoid contact with skin, eyes, andclothes, and DO NOT breathe vapors, DO NOT use near open flame or excessiveheat. The solvent’s flash point is 100°F-138°F (38°C-59°C), If you become dizzywhile using cleaning solvent, immediately get fresh air and medical help. if solventcontacts eyes, immediately wash your eyes and get medical aid.NOTEIf inner and outer wheel bearing cones need to be replaced, wheel bearing cones andraces are replaced as a set.7.Clean and inspect inner and outer wheel bearing cones in accordance with TM 9-214. Discard if damaged.b. DISASSEMBLY WARNINGDO NOT handle brakeshoes, brakedrums, or other brake components unless area hasbeen properiy cleaned. There may be asbestos dust on these components which canbe dangerous if you touch it or breathe it. Wear an approved filter mask and gloves.Never use compressed air or a dry brush to clean brake components. Dust may beremoved using an industrial-type vacuum cleaner. Clean dust or mud away from brakecomponents with water and a wet, soft brush or cloth. Failure to follow this warning mayresult in serious illness or death to personnel.4-82
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