TM 5-4320-300-14Table 4-2. Organizational Maintenance Troubleshooting - ContinuedMALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONTEST OR INSPECTIONCORRECTIVE ACTIONIf no grease is present, replace the grease seals, bearing cones, cups, hubs, and axle, ifnecessary, as described in paragraph 4-44.d. If grease is present, check for excessive bearing preload. Back off axle nut about 1/4 turn.Move the wheel several times.WARNINGDry cleaning solvent is flammable and potentiallydangerous to people and property. Do not use nearopen flame, sparks, excessive heat, or on hot surfaces.Flash point of P-D-680 solvent is 100-138°F (38-59°C).Use solvent in a well-ventilated area, and avoid inhalingfumes. If repeatedly exposed to fumes, seek fresh airand immediate medical help. Avoid prolonged exposureof skin to solvent. Wash exposed skin immediately and thoroughly.If the wheel loosens up and spins freely, remove wheel and hub, any old grease, and bearingcones and cups. Clean bearing cones and cups by placing them in a wire basket andagitating them in a container of P-D-680 dry cleaning solvent. Pack bearings about 1/3 full ofMIL-G-10924 grease, and install them in the hubs. Take care to avoid damaging lips ofgrease seal when installing hub on axle.Install axle nut and washer, and tighten nut slightly to seat the bearing. Back off axle nut andretighten it hand tight.4-74
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