5-9 REMOVE IGNITION UNIT (CONT)
To prevent clogging or contam-
ination, all exposed openings
in fuel, oil, air lines and
electrical connectors will be
caps and plugs are clean.
The ignition unit is equipped
with an open circuit safety
resistor which will allow
bleed off of stored electrical
charge when input power is re-
Disconnect APU wiring harness con-
nector (2) from upper end ignition
Disconnect igniter pluq lead (1)
from lower end ignition unit (5).
Loosen two lower mount bolts (3).
Remove upper two mount bolts (3) and
Remove ignition unit
Clean ignition unit (5) using proc-
ess 7, Chapter 8.
FOLLOW-ON MAINTENANCE: None.