4.50 CRANKCASE TEMPERATURE SENSOR (RT4) REPLACEMENT (FDECU-2 ONLY).
THIS TASK COVERS:
General Mechanics Tool Kit
Marker Tags (qty 2)
Crimp Nuts (qty 2)
Rotating parts and lethal voltage levels are used in operating the FDECU. Be sure
power source is disconnected. Injury or death can occur if connected to power
(1) Shutdown the FDECU per paragraph 2.4 and disconnect it from power source.
The FDECU cover is heavy. Be sure the cover retaining rod is in place and
properly secured with hair pin cotter. Injury can occur if cover drops.
(3) Remove two screws (1) and compressor cover (2).
(4) Locate the two leads (3) inside compressor (4) that go to crankcase temperature sensor (5). Tag the leads then
cut off and discard two crimp nuts (6) to disconnect leads. Pull leads out of compressor.
(5) Note crankcase heaters (7) and crankcase temperature sensor (5) location then loosen two clamp screws (8)
enough to remove temperature sensor.