TEST OR INSPECTION
ENGINE DOES NOT CRANK OVER
a. Check battery cables for defects and corrosion and clean or
b. Check electrolyte level and specific gravity. Refill and
Turn starter switch to START position and listen for starter to
a. Check APU wiring harness at starter for loose or corroded
connections or broken wires. Tighten connections or
b. If starter does not engage, refer to APU electrical
schematic (figure FO-4) and, using multimeter (item 17,
appx. B), check continuity
of starter solenoid, starter
switch, and starter switch wiring.
If starter engages but does not turn over, remove and
d. If engine does not turn over, if flywheel is suspected to
be binding, or if above steps do not correct malfunction,
notify DS maintenance.
ENGINE CRANKS BUT DOES NOT START
Check for contaminated fuel filter or clogged filter block.
Disassemble fuel filter and filter block and check for
blockage. If blocked, clear passages, replace fuel filter, and