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TM 10-4320-348-14
4.24 IMMERSION HEATER REPAIR AND REPLACEMENT.
This task covers:
a) Inspection
b) Removal
c) Installation
INITIAL SETUP
Tools
Equipment
Tool Kit, General Mechanics
Condition
(Appendix B, Section III, Item 1)
Para
Multimeter
2.7a(2) Sound enclosure cover assembly removed.
(Appendix B, Section III, Item 2)
4.20 Sound enclosure rear panel assembly removed.
Material/Parts
Tags (Appendix E, Item 13)
O-ring (Appendix I, Item 14)
Figure 4-17. Crankcase Oil Heater
a.
Inspection/Test. (Refer to Figure 4-17)
(1)
Inspect the immersion heater (1) for damage. Replace if damaged.
(2)
With the electrical source disconnected. Test the immersion heater (1) for continuity. Replace if damaged.
b.
Removal.
(1)
Tag and disconnect wires (2) from the terminal board.
(2)
Pull immersion heater wire leads (2) through air intake baffle grommet (3).
(3)
Unscrew immersion heater (1) and o-ring (4) from engine crankcase (5).
c.
Installation.
(1)
Install o-ring (4) onto immersion heater (1).
(2)
Screw immersion heater (1) into engine crankcase (5).
(3)
Feed oil heater wire leads (2) through air intake baffle grommet (3) and secure wire leads to terminal board
as tagged during removal.
4-41
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