TM 55-1520-240-23-7
9-54
INSTALL HEATER FAN RELAY
9-54
INITIAL SETUP
Applicable Configurations:
All
Tools:
Electrical Repairer’s Tool Kit, NSN 5180-00-323-4915
Materials.
RTV 732, NSN 8040-00-877-9872 (E340)
Personnel Required:
Aircraft Electrical
Inspector
References:
TM 55-1520-240-23P
NOTE
Before reinstalling heater fan relay,
remove existing Diode Assy IN4005
from relay and reinstall on replacing
heater fan relay. (Refer to MWO
55-1520-240-50-9.)
INSTALLATION OF DIODE:
1.
On relay 082K1 (1), remove attaching hardware
from terminals X1 and X2. Connect the end of
the diode marked with band (cathode) to terminal
marked X1 and install attaching hardware.
Connect opposite end of diode to terminal
marked X2 and install attaching hardware. Press
diode body down and in contact with relay case.
Secure diode to relay case using RTV silicone
adhesive.
2.
Position heater blower relay (1), terminals A2,
B2, and C2 facing up, in power distribution panel
(2). Install four bolts (3) and washers (4).
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