Don't go halfway on halfshaft check.A little vibration over a long period of time. That's all it takes to loosen the bolts that hold the HMMWV's halfshafts in place, mechanics. If a halfshaft flies loose, it can take out the brake lines, coolant coolant (kōō´l  nt),n tube and cause serious engine failure. That means you can't go halfway when checking halfshaft bolts for tightness. Once you've cleaned away the dirt and mud, it's pretty easy to see if the bolts that hold the halfshaft to the rotor are loose. Just look for shiny spots under the bolt heads Bolt Head is a National Trust headland on the South Coast of Devon, England, situated west of the River Avon estuary. References Hutchinson Encylopedia . If you find a loose bolt, replace both the lock washer washer Orthopedics A flattened disk of metal with a central hole used to distribute stress under a screw head to prevent thin cortical bone from splitting; serrated washers are used to affix avulsed ligaments, small avulsion fractures or comminuted fractures to the , NSN NSN National Stock Number NSN Nokia Siemens Networks NSN National Storytelling Network NSN NATO Stock Number NSN New Substances Notification (CEPA) NSN National Student Number (NZ) NSN Never Say Never 5310-01-185-7218, and the bolt, NSN 5306-01-185-7048. Dip the bolt in sealing compound. NSN 8030-01-171-7628, before installing it to help keep it tight. Then torque the bolt to 48 lb-ft. It's not so easy to check the cap screw in the hub. You must first remove an access plug to get to the screw, then use a torque wrench torque wrench, n See torque driver. to tell if the screw is loose. If the screw moves before you reach 37 lb-ft of torque, it's loose. Replace it with a new lock washer, NSN 5310-00-011-5093, and cap screw. NSN 5305-00-068-0511. Dip the new screw in sealing compound and torque it to 37 lb-ft. |
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