7-2. RADIATOR SERVICE/REPLACEMENT/TEST
This Task Covers:
a. Checking and Adding Engine Coolant
c. Radiator Removal
e. Pressure Testing Cooling
b. Changing Coolant
d. Radiator Installation
Tools and Special Tools
Cleaning Solution (Item 38, Appendix C)
Tool Kit, General Mechanic's: Automotive
Compound, Sealing (Item 28, Appendix C)
(Item 18, Appendix F)
Container, 10 gal (37.8 l) capacity
Cooling System Pressurizer
Coolant (Item 4, Appendix C)
Wrench, Torque 0-175 lb-ft (0-237 N·m)
(Item 24, Appendix F)
Vehicle parked on level ground
Engine OFF and cool (TM 10-3930-673-10)
Negative battery cable removed (Para 8-44)
Hydraulic oil cooler removed (Para 18-30)
a. Checking and Adding Engine Coolant.
Let engine cool before removing radiator
cap from radiator. Always turn cap slowly
to the first stop and allow pressure to
escape before removing cap completely.
Removing cap while coolant is hot can
result in injury to personnel.
Check coolant level in overflow tank (1).
Tank should be 1/3 to 2/3 full.
A 50-50 mixture of ethylene glycol and
clean water is used in the ATLAS. Use of
plain water coolant is not recommended.
Never add coolant without first diluting to
a 50-50 mixture.
If overflow tank (1) is between 1/3 full and
empty, open overflow tank cap (2) and add one quart of coolant. If completely empty, add two quarts of
coolant. Close cap.