MAINTENANCE OF THE M88A1 - OD1672 - LESSON 3/TASK 1
OIL PRESSURE light (3) stays lit after the engine starts, or comes on while
the engine is running, turn the FUEL SHUTOFF switch (2) to the OFF position
to stop the APU engine.
(3) When initially starting the engine, keep the PREHEAT switch (4)
(figure 29, view A, on the previous page) down in the ON position until the
engine starts. If the temperature is above 55 F, hold the PREHEAT switch
down in the ON position no longer then 20 seconds during which time the
If the temperature is below 55 F, hold the PREHEAT
engine should start.
switch down for no longer than one minute during which time the engine