Tail wheel lock pin lockup, lowdown.Crews, having trouble with your Black Hawk's tail wheel lock pin sticking or locking? First, troubleshoot the system like it says in WP 0071 of TM 1-1520-Black Hawk. Then, at your next periodic inspection, use a magnifying glass magnifying glass: see microscope. magnifying glass traditional detective equipment; from its use by Sherlock Holmes. [Br. Lit.: Payton, 473] See : Sleuthing to make sure the pin is not bent or rusted from flying in humid environments for long periods. And, inspect the entire tail wheel yoke assembly to prevent problems. That prevents lockups and shearing of the pin if the bird is towed or taxied. If your bird is going to be down for a lengthy period, follow the lubrication lubrication, introduction of a substance between the contact surfaces of moving parts to reduce friction and to dissipate heat. A lubricant may be oil, grease, graphite, or any substance—gas, liquid, semisolid, or solid—that permits free action of procedures in WP 1668. Move the locking pin up and down manually to make sure it moves freely. If the pin won't move freely or actuate properly, put a drop or two of penetrating oil Penetrating oil or penetrating fluid is very low viscosity oil. It can be used to free rusted mechanical parts (such as nuts and bolts) so that they can be removed, because it can penetrate into the narrow space between the threads of two parts. , 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 8030-01-418-9008, on the pin. Enough grease on the lock pin ensures the locking or unlocking actuation of the tail wheel. Be patient and attentive when activating the tail wheel lock mechanism with the tow bar attached. The pin will bend easily. Rush, and someone will be replacing the lock pin. Also, check to make sure the nut on the locking pin assembly has the proper torque of 30-60 in-lbs. Take care of any problems you lind during inspection and yon won't be seeing a pin malfunction on the caution advisory panel upper console in the cockpit. Lubricate lu·bri·cate v. lu·bri·cat·ed, lu·bri·cat·ing, lu·bri·cates v.tr. 1. To apply a lubricant to. 2. To make slippery or smooth. v.intr. To act as a lubricant. the tail wheel lock pin every 720 hours like the TM says. If oil or lube accidentally get on the teflon wear plate, clean it with cheesecloth cheese·cloth n. A coarse, loosely woven cotton gauze, originally used for wrapping cheese. cheesecloth Noun a light, loosely woven cotton cloth Noun 1. and wash the plate with soap and water before it deteriorates. You can find good inspection and maintenance info in TM 1-1520-Black Hawk. |
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