TM 5-3805-262-342-9. FRONT AXLE TROUBLESHOOTINGMALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION1. EXCESSIVE VIBRATION.Step 1.Check if front axle dif-ferential assembly pinionnut is loose.a. If pinion nut isloose, tighten to800 to 1100 lb-ft.b. If pinion nut isnot loose, go tostep 2 below.Step 2.Remove front axle differential assembly (page 3-362).Check adjustment ofa. If differential4-231) .differential bearings (page 4-231).bearings are not adjusted properly, adjust (pageb. If differentialbelow.Step 3.Check adjustment ofbearings are adjusted properly, go to step 3ring gear backlash (page 4-232).a. If adjustment of ring gear is not okay, adjust (page 4-232).b. If ring gear adjustment is okay, go to step 4 below.Step 4.Check ring gear tooth contact (page 4-232).a. If ring gear tooth contact is not okay, adjust ring gear back-lash (page 4-232).b. If ring gear tooth contact is okay, go to step 5 below.Step 5. Remove differential case and gear assembly from differential assem-bly (page 4-218).Check cone and rollers for wear or damage (page 4-237).a. If cone and rollers are worn or damaged, replace.b. If cone and rollers are okay, go to step 6 below.2-98
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