TM 5-6115-590-12 Section III.  Repair Parts, Special Tools and Equipment 4-6.  Tools and Equipment Tools and equipment issued with or authorized for use  with  the  power  plant  are  listed  in  the  Basic  Issue Items  List  and  Items  Troop  Installed  or  Authorized  List, and Repair Parts and Special Tools List TM 5-6115-690- 20P. 4-7.  Special Tools and Equipment The    special    tools    and    equipment    required    to perform organizational maintenance on the power plant are listed in TM 6-6116-690-20P. 4.8.  Maintenance Repair Parts Repair    parts,    special    tools,    test    and    support equipment for organizational maintenance are listed and illustrated in TM 6-6115-590-20P. Section IV. Lubrication Instructions Section IV.  Lubrication Instructions 4-9.  General Lubrication Information This section contains lubrication instructions which are supplemental to, and not specifically covered, in the lubrication order.  Refer to LO 5-6115-590-12. 4-10.  Detailed Lubrication Information a. General. Keep all lubricants in closed containers   and   store   in   clean,   dry   place   away   from extreme   heat.      Allow   no   dust,   dirt,   or   other   foreign material   to   mix   with   lubricants.      Keep   all   lubrication equipment clean and ready to use. b. Cleaning.    Keep  all  external  parts  not  requiring lubrication    clean    of    lubricants.        Before    lubricating equipment,  wipe  all  lubrication  points  free  of  dirt  and grease.    Clean  all  lubrication  points  after  lubricating  to prevent accumulation of foreign matter. c. Changing Oil. NOTE Drain oil while engine is still hot from operation.  If necessary, start and operate engine until oil is hot. (1) Open oil tank access door (fig.  1-1).  Loosen oil tank filter cap and dipstick to vent tank and facilitate draining.    Remove  oil  drain  cap  and  allow  oil  to  drain completely. NOTE Inspect   drained   oil   for   metal   particles which  might  indicate  internal  damage  to engine. Notify direct support maintenance if oil contains metal particles. WARNING Dry cleaning solvent P-D-680 or P-S-661 used to   clean   parts   is   potentially   dangerous   to personnel and property.  Avoid repeated and prolonged   skin   contact.      Do   not   use   near open flame or excessive heat.  Flash point of solvent is 100 degrees F.  (38°C.) (2) Remove   engine   and   skid   access   panel (fig. 1-2).  Remove oil filter housing, filter element, and packings from oil pump assembly (fig.  4-13).  Clean oil filter housing with dry cleaning solvent Fed. Spec.  P-D- 680 and dry thoroughly. (3) Install  new  filter  element,  new  packings, and cleaned oil filter housing on oil pump housing. (4) Install  oil  drain  cap.    Remove  filler  cap and dipstick from oil tank and fill oil tank with specified lubricating  oil  until  dipstick  indicates  FULL.    Allow  time for oil level to recede as air is vented, then add oil until level  remains  at  FULL  mark  on  dipstick.  Reinstall  oil tank filler cap and dipstick. CAUTION Do not mix types of oils or oils with different specifications.  If changing from one type of oil  or  one  oil  specification  to  another,  flush lubrication system as described in paragraph d.  below. NOTE Oil level must be checked and oil replenished as required after engine has been started and operated sufficiently to circulate oil. (5) Reinstall   engine   and   skid   access   panel (fig.  1-2).    Close  and  secure  oil  tank  access  door  (fig. 1-1). d. Flushing Lubrication System. (1) Drain oil and change filter as described in steps c.(1), (2), (3), above. (2) Disconnect  plumbing  lines  from  oil  pump assembly and from oil tank assembly to oil temperature regulator  (oil  cooler)  and  allow  oil  to  drain  completely from lines. (3) Remove   oil   hose   assemblies   from   oil temperature  regulator  valve,  drain  hoses  of  residual  oil and   discard   packing.      Loosen   attaching   clamps   and remove ducts from oil cooler and remove cooler from its cradle.  Drain residual oil from cooler tubes. (4) Reinstall   oil   temperature   regulator   and cooler and reconnect plumbing lines. (5) Fill   oil   tank   as   described   in   step   c(4) above. (6) Start  engine  and  allow  to  operate  at  no load   for   approximately   five   minutes,   then   shut   the engine down. (7) Repeat steps d(1) through (5) above. (8) Start  engine  and  allow  to  operate  at  no load  for  approximately  five  minutes,  then  shut  engine down. (9) Replace  oil  filter  element  as  described  in steps c(2) and (3). (10) Check oil level and replenish as required. 4-19