TM 5-2420-230-24-1
20-17. ENGINE BLOCK HEATER REPLACEMENT.
This Task Covers:
a. Removal
b. Installation
c. Follow-On Maintenance
INITIAL SETUP
Test Equipment
References
None
None
Tools and Special Tools
Equipment Conditions
Tool kit, common no. 2, Item 36, Appendix B
TM or Para
Condition Description
Tool kit, general mechanics, Item 38, Appendix B
Hood raised.
Electrical outlet unplugged.
Materials/Parts
Cooling system drained.
Connector, wire, Item 39.2, Appendix D (3)
Tags, identification, Item 63, Appendix C
Drawings Required
Tape, electrical, Item 65, Appendix C
TM 5-2420-230-24P Figure 207
Ties, cable, Item 68, Appendix C
Estimated Time to Complete Task
Personnel Required
Refer to MAC in Appendix B
MOS 62B, Construction Equipment Repairer
a. Removal.
Remove all jewelry such as rings, dog tags,
bracelets, etc. If jewelry or tools contact
positive electrical circuits, a direct short may
result. Damage to equipment and injury or
death to personnel may occur.
Hot parts and fluids can burn personnel. If
vehicle has been operating, let engine cool
before starting work. Avoid contact with hot
fluid when removing hoses or fittings.
Failure to comply may result in serious
injury or death to personnel.
Coolant may damage the skin. Wear
protective equipment and avoid skin contact
when handling coolant.
NOTE
Tag all wires and note their positions before
removal.
Remove cable ties as necessary.
(1)
Loosen nut (1) and disconnect block heater
plug (2) from block heater (3).
(2)
Remove block heater (3) from engine (4).
(3)
Remove electrical tape from connections.
Change 1