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CHAPTER 4 ORGANIZATIONAL MAINTENANCE INSTRUCTIONS
Section V.  TROUBLESHOOTING

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 4-7.  Special Lubrication Instructions a. Dolly.  There is a lubrication fitting on each of the four dolly wheels and each of the two transporter rear support inboard rollers.  A high pressure grease gun is used to lubricate these wheels and rollers. b. Cradle.  The boom cable sheave and the cradle guide roller on the dolly end of the boat cradle have bearings that were packed with grease during initial assembly.  When relubrication is needed, the sheave and the guide roller must be disassembled and repacked. Section IV.  PREVENTATIVE MAINTENANCE CHECKS AND SERVICES 4-8.  General This section lists the preventive maintenance checks and services which shall be performed on a monthly or quarterly   basis   by   organizational   maintenance   personnel.      It   includes   and   expands   upon   the   preventive maintenance  services  performed  by  operator/crew    maintenance  and  includes  additional  services  which  are allocated to organizational maintenance. 4-9.  Preventive Maintenance Checks and Services Refer  to  table  4-1  for  a  listing  of  the  preventive  maintenance  checks  and  services  which  are  allocated  to organizational maintenance. Table  4-1.  Organizational Preventative Maintenance Checks and Services Q-Quarterly Total man-hours required:  4.2 Sequence number I Item to be inspected procedure Work time (M/H) 1 2 3 4 5 6 7 CABLE AND ROPE ASSEMBLIES Inspect   the   boat   cradle   for   excessively   worn   ropes,   cables,   and   rope   sleeves. Replace or repair excessively worn ropes, cables, and rope sleeves. RUBBER PADS Inspect the cradle for excessively worn or loose rubber pads.  Reattach rubber pads that have come loose from the metal mounting surface.  Replace rubber pads that are worn to less than 0.25 inch thick, have gouges of sufficient number and depth to make it difficult to slide the boat over the pads, or have rips exceeding 3 inches in length CRADLE FRAME Inspect  the  cradle  frame  for  cracks,  dents,  or  other  damage.    Repair  damaged frame. CRADLE GUIDE ROLLERS Inspect  the  cradle  guide  rollers  for  worn,  missing  ,  or  damaged  parts.    Replace missing worn or damaged parts. DOLLY ASSEMBLY Inspect the dolly assembly for worn, bent, or damaged roller axle.  Check for missing or  loose  hardware  and  parts.    Replace  a  badly  damaged  or  worn  axle,  replace missing parts and hardware.  Tighten loose parts or hardware. LATCH HOOK Check the latch hook for damaged, worn or missing parts.  Replace damaged, worn or missing parts. PUSH-PULL CABLE ASSEMBLY Check the cable assembly for damage, and missing or loose attaching hardware. 0.5 1.0 0.5 0.6 1.0 0.5 0.1 4-2







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