Engine Type 4-stroke,   6-cylinder,   air-cooled, altitude    compensated,    turbocharged diesel Bore 100  mm  (3.937  in.) Stroke 120  mm  (4.724  in.) Piston    displacement 5,655   cu   cm   (345   cu   in.) Compression   ratio 17:1 Weight 440  kg  (970  lb) Power output (maximum) 109  hp  (80  kW)  at  2,400  rpm Speed  (maximum) 3,000  rpm Idle  speed  (minimum) 650  rpm Fuel diesel   or   JP-4 Lubrication forced   lubrication Valve   clearance   (cold) 0.15   mm   (0.006   in.) Crankcase    capacity 11.82   L   (12.5   qt) Fuel  tank  capacity 113.55  L  (30  gal) 1.13.3   Pumping    Assembly,  Model  US636HCCD-1. Weight   (dry) Length Width Height Pump Type Output  volume Designed  working  pressure Designed   suction   pressure Suction  and  discharge  size Enqine Type Bore Stroke Piston    displacement (entire)   (inch) Compression   ratio Weight Power output (maximum) Speed  (maximum) Idle  speed  (minimum) Fuel Lubrication Valve   clearance   (cold) Crankcase   capacity Fuel   tank   capacity 2,400   lb   (1,090   kg) 135  in.  (343  cm) 70   in.   (178   cm) 69  in.  (174  cm) Self-priming,    centrifugal,    direct-coupled to   diesel   engine 600  gpm  at  350  ft  tdh 150   ±   5   psi   (1,034±   34   kPa) -30  to  200  psi  (138  to  1,034  kPa) 6  in.  (15  cm) 4-stroke,    6-cylinder,   air-cooled, turbocharged   diesel 102  mm  (4.015  in.) 125  mm  (4.922  in.) 6,128   cu   cm   (374   cu   in.) 15.5:1 515  kg  (1,133  lb) 160  hp  (118  kW)  at  2,500-2,800  rpm 2,500  rpm 650  rpm diesel   or   JP-4 forced   lubrication 0.15   mm   (0.006   in.) 15.136   L   (16   qt) 45.42  L  (12  gal) The   pumping   assembly   has   a   centrifugal   pump   that   is   direct-connected   to   the   diesel engine  by  means  of  a  flexible  coupling. The   pump   speed   (revolutions   per   minute (rpm))  is  determined  by  the  engine  speed. When   the   pump   is   primed   (filled   with water),  pump  rotation  creates  centrifugal  force  that  causes  water  to  flow  outward to   the   discharge   outlet. The  outward  flow  of  water  causes  suction  so  that  water  is drawn  into  the  pump  through  the  suction  inlet. The  volume  of  water  flow  and  the 1-14 TM    10-4320-344-10 SECTION    III.    PRINCIPLES  OF  OPERATION 1.14  FUNCTIONAL DESCRIPTION