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TM 10-4320-311-14 (2) Diesel engine lubrication system (a) The engine incorporates an internal sump and oil pump. (b) An  oil  dipstick  is  mounted  on  the  engine  and  protrudes  through  the  sound  enclosure  front  panel assembly. (c) When  the  oil  requires  changing,  the  oil  can  be  drained  from  outside  of  the  pump  assembly  by removing a drain plug on the sound enclosure front panel assembly. (3) Diesel engine air intake system. (a) An  air  cleaner  (2),  with  an  operator  replaceable  filter  element  is  mounted  on  the  engine  The  air cleaner is accessible through the access door in the sound enclosure cover. (b) Mounted horizontally on the air cleaner Is a air restriction indicator (3) that provides the operator with positive indication of the need to change the filter element.  A detailed description of this Indicator Is provided in Chapter 2. (4) Diesel engine exhaust system (a) Engine exhaust Is ported out of the cylinder by an Internal exhaust valve. (b) The exhaust travels through an exhaust pipe (4) to the exhaust silencer (5) where the exhaust gases are muffled and cooled. (c) Exhaust gases exit the silencer and exit the pump assembly through the spark arrestor that protrudes through the sound enclosure rear panel assembly.  The spark arrestor and the exiting exhaust gases are hot and represent a possible burn hazard to operation and maintenance personnel. (5)    Diesel engine starting system (a) A recoil starter (6) is mounted to the engine and the recoil starter handle and rope protrudes through the sound enclosure front panel assembly. (b) A decompression lever (7) is opened to ease the effort required during engine starting.  After the first compression stroke of the engine the lever automatically closes. (c) A rubber plug (8) in the valve cover allows the operator to place a small amount of oil directly into the valve cover during cold weather starting. (6) Diesel engine attaching points and electrical grounding (a) The diesel engine provides mounting surfaces for the centrifugal pump and the engines output shaft (9) Is keyed and coupled to the pump's impeller shaft. (b) In  turn,  the  engine  has  foot  mounts  (10)  which  are  attached  to  the  engine  base  plate  which  is attached to the pump frame with rubberized shock mounts. (c) To  prevent  the  buildup  and  discharge  of  static  electricity  during  the  pumping  operation  the  diesel engine and the centrifugal pump are electrically grounded to the frame by a ground strap. (d) During  operation  of  the  pump  assembly,  the  pump  frame  must  be  attached  to  a  properly  Installed ground rod b. Centrifugal pump.  The external portions of the centrifugal pump consists of a pump casing, volute, and a check valve  housing  on  the  suction  side  of  the  pump  casing.    The  casing  provides  attaching  points  to  mount  the  centrifugal pump to the diesel engine.  Internally, the pump contains an impeller and shaft coupled to the diesel engine's output shaft If  the  pump  is.    primed  properly,  connected  to  the  appropriate  pump  accessories,  connected  to  a  source  of  a  suitable flammable liquid, and with the engine running at the required speed, then the pump will draw liquid from the source and transfer that liquid to the desired fueling point or storage facility. 1-12

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