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 TM 5-1940-277-20
TM 1940-20/2
3-72. HEADER TANK REPLACEMENT INSTRUCTIONS MK1 AND MK2 W/SABRE
TOOLS: Flat Tip Screwdriver
Putty Knife
1/2 inch Socket
1/2 inch Box Wrench
3/4 inch Combination Wrench
PARTS/MATERIALS: Gasket, Heat Exchanger
Gasket, Intercooler Pipe Flange
Silicone Sealant
Header Tank/Heat Exchanger
REMOVE:
1.
Open and secure engine hatches (refer to paragraph 3-154).
2.
Open and secure battery hatches (refer to paragraph 3-154).
3.
Drain both primary and secondary cooling systems (refer to paragraph 3-69).
4.
Disconnect overflow drain tube (1) from overflow outlet.
5.
Using screwdriver, loosen hose clamps on elbow connector (2), header tank to thermostat bypass
pipe (3), and header tank to secondary water pump pipe (4).
3-156
Change 2
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