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![]() TM 5-2420-222-20-1 
ENGINE COOLANT HEATER (OPTIONAL) - CONTINUED 
ACTION 
LOCATION 
ITEM 
REMARKS 
INSTALLATION - CONTINUED 
17. 
Oil pan (1) and 
Two screws (3) and 
a. Using 9/16-inch, 3/8-inch drive socket 
engine block (2) 
lockwashers (4) 
and ratchet handle, unscrew and take out. 
b. Get rid of. 
18. 
Oil pan (1) 
Two spacers (5) and 
Put on. 
bracket (6) with 
assembled engine 
coolant heater (7) 
19. 
Bracket (6), 
Two screws (8) and 
Screw in and tighten using 9/16-inch, 
spacers (5), oil 
new lockwashers (9) 
3/8-inch drive socket, 5-inch extension, 
pan (1), and 
and ratchet handle. 
engine block (2) 
20. 
Engine coolant 
Upper hose (10) 
Push on. 
heater (7) 
with assembled 
clamp (11) 
21. 
Upper hose (10) 
Clamp (11) 
Using 3/16-inch flat-tip screwdriver, tighten. 
22. 
Engine coolant 
Lower hose (12) 
Push on. 
heater (7) 
with assembled 
clamp (13) 
23. 
Lower hose (12) 
Clamp (13) 
Using 3116-inch flat-tip screwdriver, tighten. 
2-360 
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