TM 5-3895-373-20 2.6. CLEANING AGENTS. WARNING Cleaning    solvent,    P-D-680,    is    TOXIC    and flammable.     Wear     protective goggles and gloves.   Use   only   in   a   well   ventilated   area. Avoid contact with skin, eyes, and clothes, and do  not  breathe  vapors.  Keep  away  from  heat or  flame.  Never   smoke   when   using   solvent; the  flashpoint  for  Type  IH  cleaning  solvent  is 200°F (93,3°C).  Failure to do so may result in injury or death to personnel. If personnel become dizzy while using cleaning solvent, immediately get fresh air and medical help.  If  solvent  contacts  skin  or  clothes,  flush with cold water. If solvent contacts eyes, flush eyes  with  water  and  get  immediate  medical attention. When cleaning underhood areas, engine must be  COLD  (same  temperature  as  outside  air). DO NOT point water or steam at any electrical connection.    DO    NOT    point    water    stream directly   at   radiator   fins.   DO   NOT   use   high pressure   water   supply   system.   Damage   to engine, electrical system, and other components may result. NOTE Use     only     the     authorized     cleaning solvents  or  agents  listed  in  Appendix C. a.    The paving machine should not be washed right before an inspection. Certain problems, such as oil,  hydraulic,  or  coolant  leaks  may  not  show after a wash. b.    Cleaning engine compartment areas: (1)   When   using   water   to   clean   the   engine compartment,  always  cover  alternators  and  air  cleaner inlet using waterproof materials. Use water pressure and volume similar to standard household type water supply system [45 to 70 psi (310 to 483 kPa)]. (2) After cleaning, allow engine to air dry. Do not use compressed air to dry engine. Do not run engine to decrease drying time. (3) Remove all covers before starting engine. Keep   cleaning   solvents,   diesel   fuel,   and lubricants  away  from  rubber  or  soft  plastic parts. They will deteriorate the material. 2.7. PRESERVATIVES AND LUBRICANTS. All    lubrication    of    the    Paving    Machine    will    be    in accordance with LO 5-3895-373-12 Lubrication Order. 2.8. FLUID LEAKAGE. It  is  necessary  to  know  how  fluid  leakage  affects  the status of the paving machine. Following are types/classes  of  leakage  you  must  know  to  be  able  to determine the status of the paving machine. Learn these leakage definitions; when in doubt notify your supervisor. Paving  machine  operation  must  be  halted  if  any  steady stream leak of hydraulic oil is detected. NOTE Equipment   operation   is   allowable   with minor leakages (Class I or II). Consideration    must    be    given    to    fluid capacity in the item/system checked/inspected. When in doubt, notify your supervisor. When  operating  with  Class  I  or  H  leaks,  continue  to check fluid levels as required by PMCS. Immediately report Class m leaks to supervisor. a.    Class    I    Seepage    of    fluid    (as    indicated    by wetness  or  discoloration)  not  great  enough  to form drops. b.    Class  II  Leakage  of  fluid  great  enough  to  form drops,  but  not  enough  to  cause  drops  to  drip from item checked/inspected. c.    Class  III  Leakage  of  fluid  great  enough  to  form drops that fall from item checked/inspected. 2-7