TM 1-1500-204-23-9 (13) Operating Mechanisms.  Lubricate hinges and    latches    with    MIL-L-21260,    Type    1,    grade    10, lubricating oil.  Apply a light coat of O-G-491 glycerol on rubber seals and bumper blocks. CAUTION Insure that tape does not contact polished surface of actuator rod. (14) Hydraulic    Systems.        Service    hydraulic system   in   accordance   with   the   applicable   equipment publications. Clean and treat metal hydraulic components  except  actuator  rods,  in  accordance  with paragraph  9-7e  (1).    Clean  and  coat  hydraulic  actuator shafts  with  the  type  of  hydraulic  fluid  specified  for  the system in the applicable equipment publications.  Wrap the    actuator    rods    with    MIL-B-131,    class    3,    barrier material secured with PPP-T-60 Type 4, class 1 tape. (15) Brake   Systems.      Exterior   unpainted   or threaded     surfaces     such     as     cables,     clevises,     and linkages  of  service  and  parking  brakes  will  be  coated with    MIL-C-16173,    grade    4,    corrosion    preventative compound.    Hydraulic  brakes  will  be  serviced  to  the operating   level   with   the   fluid   specified   in   equipment publications. WARNING Both lead-acid and nickel-cadmium batteries produce gasses that can explode.        Do    not    smoke,    use    open flames, or make sparks around batteries. WARNING Electrolyte   and   corrosion   products   from both lead-acid and nickel-cadmium batteries  will  cause  injury.    Wear  safety goggles,  gloves,  or  apron.    If  electrolyte or  corrosion  products,  contact  eyes,  skin or  clothing,  flush  immediately  with  large quantities  of  cold  water.    In  the  case  of eye contact, see a physician immediately. CAUTION Keep nickel-cadmium batteries away from  lead-acid  batteries.    Do  not  handle or service them with the same tool. (16) Batteries.  The processing of batteries will vary with the type of battery.  All batteries, including dry cell    type    will    be    removed    from    equipment    being preserved.          When     removing     batteries     disconnect negative cable first to avoid arcing CAUTION Lead-acid battery cleaning solution (sodium bicarbonate) will damage battery if  allowed  inside  battery  cells.    Use  care to prevent solution from entering through or around caps. (a) Lead-Acid Batteries. Remove battery from equipment.  Clean battery using a H-B-643 acid swabbing brush or equivalent and a solution of 1/2 pound  of  O-S-576  sodium  bicarbonate  to  one  gallon  of water in accordance with TM 9-6140-200-14 Operators, Organizational,   Direct   Support   and   General   Support Maintenance   Manual   for   lead-acid   storage   batteries. Clean  and  neutralize  battery  cables,  clamps,  supports, retainers,   and   battery   box   using   the   above   sodium bicarbonate  solution.    After  cleaning,  paint  battery  box area as required in accordance with paragraph 9-3, TM 1-1500-204-23-9.      Coat   battery   terminals   and   cable clamps  with  VV-P-236  petrolatum.    Wrap  cable  ends with  MIL-B-131,  class  3,  barrier  material  secured  with PPPT-60,  Type  5,  class  1,  tape  and  secure  to  battery holder. (c) Dry Cell Batteries. Remove batteries from equipment and store in cool dry place. (17) Fire  Extinguishers.    All  portable  type  fire extinguishers  shall  be  serviceable  and  remain  in  place on the equipment. (18) Keys  and  Locks.    Tie  together  all  keys, not   fixed   in   locks;   place   in   envelope   and   store   with forms and records.  Locks shall be treated with grease, molybdenum  sulfide,  MIL-G-21164,  and  openings  shall be   sealed   with   MIL-B-131,   class   3,   barrier   material, secured with PPP-T-40, Type 4, class 1 tape. (19) Generators, Alternators, and Electric Motors.        Clean    and    preserve    exterior    surfaces    in accordance with paragraph 9-7a.  Blow accumulation of dust from interior surfaces with compressed air directed through ventilation openings.  Cover openings with MIL- B-131,  class  3,  barrier  material,  sealed  with  PPP-T-60, Type 4, class 1 tape.  Securely attach UU-T-81 warning tag   to   operating   controls   stating   "Remove   Packaging Tape Prior to Use.  " 9-22