REMOVE HEATER THERMOSTATIC SWITCHES
Aircraft Mechanics Tool Kit, NSN 5180-00-323-4692
Paper Tags (E264)
Electrical Tape (E385)
Medium Helicopter Repairer
Battery Disconnected (Task 1-39)
Electrical Power Off
Heater Compartment Acoustic Blanket Removed
Removal procedure is same for all
three heater thermostatic switches
except for wire connections. Overrun
and overheat switches have three
wires; cycle switch has two. Removal
of fan overrun switch is shown here.
Tag and disconnect three wires (1) from switch
(2) by removing two screws (3). Tape wire ends.