(c)   Continuously   monitor   the   temperature seen   by   the   thermocouple   installed   in   paragraph   16- 22  c(l)(b)  above.   Record   the   temperature   at   which the–overtemperature   protective   device   actuates.   Re- cord   the   temperature   at   which   the   coolant   tempera- ture   indicator   illuminates. CAUTION If  the  engine  fails  to  shutdown  when  the temperature  exceeds  the  maximum trip   value   specified   in   Table   16-1,   the test   shall   be   immediately   discontinued. d.   Results.   Compare   the   results   with   the   re- quirement   of   Table   16-1. 16-23.   Phase   Sequence   Test   (Rotation) a.    General. Unless   the   phase   sequence   (rotation) of   the   load   terminals   of   a   three-phase   generator   set is   correct,   serious   damage   or   injury   could   be   done to  connected  equipment  and  to  personnel  as  a  result of   reversed   motor   rotation   or   excessive   current surges. b.   Apparatus.    A   phase   sequence   (rotation)   indi- cator   as   described   and   illustrated   in   MIL-HDBK-705, Method   116.1   or   a   three-phase   motor   whose   direc- tion  of  operation  in  relation  to  phase  sequence  is known  shall  be  required. c. Procedure. (1)   Connect   the   generator   set   load   terminals to   the   applicable   test   applicable   test   apparatus   for one   of   the   set   three-phase   voltage   connections.   Re- check   the   connections   to   insure   that of   the   generator   set   are   connected   to   Ll, L2  and  L3 of   the   test   apparatus   respectively. (2)   Start   and   operate   the   generator   set   at   ra- ted   voltage   and   frequency.   The   set   indicating   instru- ments  shall  be  sufficient  indication  of  output  voltage and  frequency. (3)   Close   the   circuit   interrupter   and   determine the   direction   of   phase   sequence   (rotation)   by   observing the   indicator,   or   by   noting   the   direction   of   rotation   if a   three-phase   motor   is   used. Record   results. (4)  Check  the  phase  sequence  (rotation)  of  the power  output  of  each  power  receptacle  on  the  genera- tor   set   by   connecting   the   applicable   test   apparatus   to the   receptacle   and   repeating   steps   (1)   thru   (3)   above. (5)  Repeat  steps  (a)  thru  (d)  above  for  all other   three-phase   voltage-output   connections   of   the generator    set. d,   Results.   The   phase   sequence   (rotation)   as   in- dicated  by  the  test  shall  be  checked  against  the  re- quirements   of   Table   16-1. 16-24.   Maximum   Power   Test. a.   General.   The   maximum   power   of   a   generator set–is   a   function   of   the   ambient   conditions   (tempera- ture  and  altitude)  and  the  mechanical  condition  of  the engine   at   any   particular   time. b.   Apparatus. Instrumentation   for   measuring load   conditions,   field   voltage   and   current,   pressures and  temperatures  shall  be  as  described  and  illustra- ted  in  MIL-HDBK-705. c.    Procedure. CAUTION This  procedure  subjects  the  generator  set to  a  severe  overload  which  may  be  damag- ing  if  maintained  for  too  long  a  period  of time. (1)   Preparation   for   test. (a)   Connect   the   load   and   instrumentation   in accordance   with   the   applicable   figure   of   MIL-HDBK- 705,   Method   205.1,   paragraph   205.1.10   for   one   volt- age  and  frequency. (b)   Install   appropriate   thermocouples   to measure   the   following   temperatures: 1.   Engine   coolant   (engine   outlet   and   inlet) 2.   Exhaust   gas(es)   (the   exhaust   manifolds shall  be  drilled  and  tapped  as  close  as possible   to   the   combustion   chamber(s). 3.   Lubricating   oil   sump, 4.   Engine   combustion   air   in   (located   at the  inlet  of  the  intake  manifold). (c)   Install   appropriate   pressure   instrumenta- tion   to   measure   the   following   items: 1.   Exhaust   pressure   (combined   exhaust gases   in   exhaust   manifold). 2,   Intake   air   manifold   pressure   (between air   filters   and   manifold). (d)   Obtain   and   record   the   barometric   and water   vapor   pressures   (see   MIL-HDBK-705,   Method 220. 2). (e)   Bypass   the   set   circuit   interrupter. (f)  Connect  the  set  to  a  source  of  fuel  con- taining   a   specified   fuel   required   by   the   procurement document. (2)   Test. (a)   Start   and   operate   the   generator   set   and allow   it   to   stabilize   at   rated   load,   rated   voltage   and rated   frequency   (speed). During   this   period,   readings of  all  instruments  including  thermal  instrumentation shall   be   recorded   at   minimum   intervals   of   10   minutes. If   necessary,   adjustments   to   the   load,   voltage   and rated  frequency. However,   adjustments   to   the   volt- age   and   frequency   shall   be   limited   to   those   adjustments 16-13