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Section III.   TROUBLESHOOTING
Special Lubrication Instructions

TM-5-2090-200-12P Cradle Boat 27 FT: Bridge Erection Boat NSN 2090-00-348-8138 Manual
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TM 5-2090-200-12&P CHAPTER 4 ORGANIZATIONAL MAINTENANCE INSTRUCTIONS Section I.  SERVICE UPON RECEIPT OF MATERIEL 4-1.  Inspecting and Servicing the Equipment a. Inspection. (1) Inspect for missing components and loose or missing parts and hardware. (2) Inspect for dents, cracks, and other damage that may have occurred during shipment. (3) Inspect for worn or damaged ropes and cables. b. Service (1) Replace missing, worn, or damaged parts and components. (2) Lubricate per LO 5-2090-200-12. 4-2.  Unloading the Equipment The rear winch boom on the transporter can be used to unload the boat cradle. a. Prepare the transporter for unloading the cradle. (1) Apply  the  transporter  service  brakes,  place  transmission  in  neutral  position,  lock  the  service brakes, depress the control lever to enage the boom winch drive, and release the clutch pedal. (2) Set the hand throttle so the engine operates at 1,800 RPM. (3) Engage the hydraulic control lever, (fig. 2-4) to disengage the boom-point lock pin. b. Push  the  boom  and  winch  Hydraulic  control  levers  to  elevated  the  boom  to  an  angle  of  about  20 degrees  and  pay  out  the  boom  cable.    Continue  to  slowly  pay  out  the  boom  cable  so  that  boat  cradle  rolls downward over the rear support inboard rollers. c. After the center of gravity passes the inboard rollers, adjust the boom elevation as needed to maintain alignment  with  the  boat  cradle.    Continue  to  pay  out  the  boom  cable  and  allow  the  boat  cradle  to  descent toward the hardstand. d. Allow the end of the boat cradle to come to rest on the hardstand.  Use an assistant to pay out the boom cable as needed.  Release the brake and slowly move the transporter forward as the assistant pays out the boom cable, so that the transporter rolls beneath the boat cradle until the forward cradle stop pins (12, fig.1- 1) engage the stop brackets on the rear support inboard rollers (fig. 2-4). e. The assistant will then elevate the boom to a vertical position and rewind the boom cable slightly, so that the end of the boat cradle is raised enough to allow the stop pins to clear the stop brackets. f. Move  the  transporter  forward  two  feet,  place  in  neutral  and  lock  brakes  then  extend  the  boom  to maximum, so the end of cradle will clear the transporter. Section II.  REPAIR PARTS, SPECIAL TOOLS AND EQUIPMENT 4-3.  Tools and Equipment There are no tools or special equipment authorized for the boat cradle. 4-4.  Special Tools and Equipment No  special  tools  or  equipment  are  required  by  organizational  maintenance  for  the  maintenance  of  the  boat cradle. 4-5.  Repair Parts and Equipment Repair   parts   and   equipment   are   listed   and   illustrated   in   the   repair   parts   and   special   tools   list   covering organizational maintenance for this equipment in Appendix C of this manual. Section III.  LUBRICATION INSTRUCTIONS 4-6.  General This section contains supplemental information and lubrication instructions that must be followed for lubricating and servicing the boat cradle at organizational maintenance level.  Refer to the lubrication chart (fig. 301), for lubrication points, intervals, and detailed instructions. 4-1







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