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TM 5-2420-222-20-1
ENGINE COOLANT HEATER HOSES AND FITTINGS (OPTIONAL)
This task covers:
a.
Removal (page 2-362)
d. Inspection/Replacement (page 2-364)
b.
Disassembly (page 2-364)
e.
Assembly (page 2-365)
c.
Cleaning (page 2-364)
f.
Installation (page 2-366)
INITIAL SETUP:
Tools
Materials/Parts - Continued
Container, 5-gallon
Rags, wiping (item 21, Appendix C)
Key, socket-head screw, 114-inch
Solvent, drycleaning (item 28, Appendix C)
Screwdriver, flat-tip, 3/16-inch
Vise, machinist's
Personnel Required
Wrench, open-end, 9116inch
Wrench, pipe, adjustable,
One
1/4 to 1-inch
Equipment Condition
Materials/Parts
Radiator drained (page 2-368)
Detergent, GP (item 7, Appendix C)
ACTION
LOCATION
ITEM
REMARKS
REMOVAL
1.
Lower hose (1)
Clamp (2)
a. Put 5-gallon container underneath to
catch draining coolant.
b. Using 3116-inch flat-tip screwdriver,
loosen.
2.
Engine coolant
Lower hose (1)
a. Pull off.
heater (3)
with assembled
b. Drain coolant into 5-gallon container.
clamp (2)
c. Get rid of drained coolant
(page 2-137).
3.
Lower hose (1)
Clamp (4)
Using 3/16-inch flat-tip screwdriver,
loosen.
4.
Tube nipple (5)
Lower hose (1)
Pull off.
with assembled two
clamps (2 and 4)x
2-362
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