Section XII INSTALL IGNITION UNIT
5-12 INSTALL IGNITION UNIT
Aircraft Inspection Tool Kit (T49)
Engine Repairman"s Tool Kit (T47)
Torque Wrench 30-150 inch-pounds
68B Aircraft Powerplant Inspector
68B Aircraft Powerplant Repairer
APU on Aircraft
General Safety Instructions:
Voltages used can cause arcing
which may result in severe
Use extreme care when
working with ignition system.
Failure to observe all precau-
tions may result in serious
injury or death.
The ignition unit is equipped
with a open circuit safety re-
sistor which will allow bleed
off of stored electrical charge
when input power is removed.
Prior to assembly, all compo-
nents will be visually in-
spectad for damage.
Position ignition unit (1) on lower
two mount bolts.
Install upper two
mount bolts (3) and washers (2).
Torque bolts to 38 to 42
Install ignter plug lead (4) to
lower end of ignition unit (1).
Torque to 33 to 37 inch-pounds.
Lockwire igniter plug lead with
Connect APU wiring harness elec-
trical connector (5) to upper end of
with lockwire (D43).
FOLLOW-ON MAINTENANCE: None.