INSTALLATION -624880427

TM 5-2420-222-20-1

ENGINE COOLANT HEATER HOSES AND FITTINGS (OPTIONAL) - CONTINUED

ACTION

LOCATION

ITEM

REMARKS

INSTALLATION

NOTE

If installing engine coolant heater hoses and fittings on loader backhoe from which they have been

removed, skip steps 17 and 18.

17.

Engine block (1)

Draincock (2)

a. Using 9/16-inch open-end wrench, un-

screw and take out.

b. Get rid of.

18.

Cylinder head (3)

Plug (4)

a. Using 1/4-inch socket-head screw key,

unscrew and take out.

b. Get rid of.

19.

Engine block (1)

Tube nipple (5)

Screw in and tighten using open-end

wrench.

20.

Cylinder head (3)

Elbow (6) with

Screw in and tighten using 1/4 to 1-inch

assembled tube

adjustable pipe wrench.

nipple (7)-

21.

Upper hose (8) and

Four clamps

Slide on.

lower hose (9)

(10, 11, 12, and 13)

22.

Engine coolant

Upper hose (8)

Push on.

heater (14) and

with assembled two

tube nipple (7)

clamps (10 and 11)

23.

Upper hose (8)

Two clamps

Using 3/16-inch flat-tip screwdriver,

(10 and 11)

tighten.

24.

Engine coolant

Lower hose (9)

Push on.

heater (14) and

with assembled two

tube nipple (5)

clamps (12 and 13)

25.

Lower hose (9)

Two clamps

Using 3/16-inch flat-tip screwdriver,

(12 and 13)

tighten.

26.

Engine coolant

Cord (15)

Tie up out of the way.

heater (14)

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