DEFROST TERMINATION THERMOSTAT (F10000RG-2)

TM5-4110-234-14

TO 40R7-5-7-1

a. Access. (See fig. 4-12).

(1)

Disconnect power.

(2)

Remove 12 screws and lock washers and remove the evaporator air housing and screen.

(3)

Remove 3 screws and lock washers and remove the top evaporator screen.

Compressed air used for cleaning purposes will not exceed 30 PSI (2.1 kg/cm2).

b. Cleaning.

(1)

Clean coil with a clean soft bristled brush, or use compressed air at 30 psi or less from the inside face of the

coil to blow the dirt out. Take care to avoid fin damage. Take care that supplies stored in the refrigerator box are not

contaminated.

(2)

Wipe the inside and outside surfaces of the housing with a clean cloth.

(3)

Check fins for dents, bent edges or any condition that would block or distort air flow. Straighten all damaged

fins with a plastic fin comb.

(4)

Should a leak or any other damage to the coil or housing be noted contact direct support maintenance.

(5)

Install the top evaporator screen with 3 screws and lock washers.

(6)

Install the evaporator air housing and screen with 12 screws and lock washers.

(7)

Connect power.

4-57. DEFROST TERMINATION THERMOSTAT (F10000RG-2)

a. Access. (See fig. 4-12).

(1)

Disconnect power.

(2)

Remove 12 screws and lock washers and remove the evaporator air housing and screen.

b. Removal. (See fig. 4-27).

(1)

Tag and disconnect wire leads.

(2)

Remove two screws and lock nuts and take the clamp and thermostat off of the refrigerant line.

c. Testing. The thermostat opens on temperature rise at 45 4F (7.2 2.2C). It closes on temperature decrease at

25 + 4F (3.9 + 2.2C).

Connect a continuity tester to the wire leads. At temperatures above 45 4F (7.2 2.2C) there should be

(1)

no continuity.

(2)

Place the thermostat in a freezer with a known temperature less than 25 4F (3.9 2.2C).

temperatures below 25 + 4F (3.9 + 2.2C) there should be continuity.

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