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CHAPTER 5 ROTOR SYSTEM
6-7. OPTION 2

TM-1-1520-240-BD Army CH-47D Heilcopter (NSN 1520-01-088-3869) (EIC:RCD) Manual
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TM 1-1520-240-BD CHAPTER 6 POWERTRAIN SYSTEM SECTION I.  GENERAL Figure 6-1.  Powertrain Assessment Logic 6-1. POWERTRAIN COMPONENTS     Battle  damaged to  the  basic  powertrain  (transmission,  gear  boxes,  and drive    shafts)    will    most    likely    require    a    component change.    This  is  especially  true  if  internal  damage  has occurred. 6-2. GEARBOX DAMAGE 6-3. GENERAL INFORMATION .  if a bullet strikes the gear  box  and  exits,  and  the  gears  do  not  jam  or  bind and there is no loss or lubricant, repair may be deferred. 6-4. LIMITATIONS   Small oil loss can be tolerated.  If aircraft is run for an extended period of time with little or no oil, gearbox will wear itself out and jam. 6-5. PERSONNEL   TIME   REQUIRED .      One   Person Required 6-6. OPTION  1.    Sealant  Repair  (Refer  to  paragraph 2-13). 6-1







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