3-4. TROUBLESHOOTING PROCEDURES. Table 3-1 provides troubleshooting malfunctions, tests or inspections, and
corrective actions that can be performed by you.
Table 3-1. Troubleshooting Procedures.
TEST OR INSPECTION
If you find something wrong that is not listed in this table or something you cannot
fix, notify unit maintenance.
ENGINE FAILS TO CRANK OR CRANKS SLOWLY WHEN START BUTTON IS PUSHED.
Check MASTER switch for proper functioning with
transmission shift lever in park (P) position. Turn on several
items of electrical equipment and see if they operate.
If equipment fails to operate, notify unit maintenance.
Check battery terminals and electrolyte level.
Fill electrolyte up to split rings and tighten any loose
terminals. If batteries are still bad, notify unit
Check for low battery charge indicated on BATTERY-
Run APU to charge batteries (see para. 2-13e(3)).
Check starting and generating system for broken wires and
Tighten all loose connections or notify unit maintenance
of any broken wires.
Check for unusual noises or vibration when START button is
If starter attempts to operate but engine fails to turn over,
engine may be mechanically seized. Notify unit
ENGINE CRANKS, BUT FAILS TO START.
Check fuel controls for proper setting.
a. Ensure enough fuel is present.
b. Push in FUEL SHUTOFF handle.
c. Turn FUEL PUMP switch ON.
d. Operate purge pump.