TM 10-3930-671-24 5. EXHAUST SYSTEM A. Check the rain cap, if supplied, for proper operation and repair as required. 6. INTAKE AIR SYSTEM A. Be sure all hoses and clamps are properly seated and tight. B. Check    instructions    on    the    air    cleaner decal.    Service    dry-type    air    cleaner    as specified. 7. MISCELLANEOUS A. Normal    starting    using    the    glow    plugs supplied as standard equipment should be accomplished    down     to     -20°C     (-4°F). Contact  Wis-Con  Total  Power  for  special starting aids for colder temperatures. B. Check and adjust tappets. WINTER MAINTENANCE 1. Perform maintenance in accordance with instruction manuals. 2. Change oil as recommended in Section 3. Starting  fluids  or  aids  such  as  ether or   gasoline   must   not   be   used   In   a diesel  engine  air  Intake  system.    The use  of  these  fluids  will  cause  severe Internal engine damage and/or bodily Injury. 3. If unit is only used for short periods and does not get  thoroughly  warm,  operate  it  for  at  least  an hour  once  a  week  to  get  it  thoroughly  warm. This  will  avoid  excessive  sludge  in  the  oil  and reduce   dilution   of   oil   with   raw   fuel   in   the crankcase. PREPARATION OF ENGINE FOR SEASONAL STORAGE (90 DAYS TO 6 MONTHS) 1. Run   engine   -   To   thoroughly   warm-up   oil   in crankcase. 2. Stop engine - And drain crankcase oil. 3. Refill  crankcase  -  With  SAE  No.    10  engine preservative oil which meets MIL-L21 260 Grade 1 specification. 4. Fill cooling system - With a solution containing a rust inhibitor. 5. Drain fuel tank and filters - Refill with about 2 gallons    of    a    50-50    mixture    of    pure    white kerosene and SAE No.  10 engine oil. 6. Bleed the system as detailed in Section 5. 7. Start   engine   and   run   it   at   half   speed   for   15 minutes when the oil will have circulated through the injection pump, lines, and injectors. 8. Seal  the  air  vent  in  the  tank  or  filler  cap  with waterproofed adhesive tape. 9. Drain crankcase. 10. Drain cooling system completely. 11. Clean  exterior  engine  surfaces  -  After  engine has cooled; removing all grease or other foreign matter.    Never  wash  a  hot  injection  pump  with cold water while engine is running. 12. Seal all openings air-tight - With adhesive tape that will not absorb or retain moisture. F-142

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