INSPECTION - TM-9-2320-285-24-10867

TM 9-2320-285-24-1

2-73.

HEATERS MAINTENANCE (CONT)

Coolant Heater and Pump (cont).

STEP

LOCATION

ITEM

ACTION

REMARKS

INSPECTION

a. Hoses (1, 3,

Inspect

Replace if cracked or broken.

14, and 52)

Clear clogged hoses with

compressed air at 30 psi

b. 3-wire cords

Inspect

Replace if jacket or insul-

(6, 7, 45,

ation cracked, cut, or

55, and 66)

frayed, or if conductors

corroded or broken

c. Plastic tubing

Inspect

Replace if cracked, chafed,

(9, 44, 63,

or deteriorated

64, and 67)

d. Pump (31)

Inspect

Replace if deeply gouged or

dented, threads damaged, or

wiring or pump defective

e. Heater (35)

Inspect

Replace if deeply gouged or

dented, cracked, broken, or

otherwise damaged

f. Heater element

Inspect

Replace heater assembly (35)

(58)

if cracked, broken, or

defective

g. All other parts

Inspect

Replace if cracked, broken,

distorted, or threads

damaged

REASSEMBLY

Heater

a. Heater element

a. Coat

Use antiseize compound

tank (62)

(58)

threads

b. Install

In heater tank (62); rotate

clockwise

b. Head and valve

Position

On heater tank (62)

assembly (61)

c. Six capscrews

Install and

(60)

tighten

d. Plug (59)

Install and

tighten

e. Cover (56)

Position

Slide onto 3-wire cord (55)

WARNING

You must attach the green ground wire securely in the following steps.

Loose or incorrect connection can cause the engine and body of the

tractor to be energized at 110 Vac. Serious injury or death can result

from contact with 110 Vac power.

2-844