UNIT HOUSING ITEMS

TM5-4110-234-14

TO 40R7-5-7-1

Installation.

(1) Two people are required to mount the motor. Lift the motor into place and install but do not tighten the

motor mounting hardware.

(2)

See tags and wiring diagram figure 4-6 and connect leads.

(3)

Install the terminal box cover.

(4) Place the fan belt on the motor pulley. Slide the motor away from the center of the unit to take up belt

slack. Proper tension is a deflection of 1/2 inch (1.3 cm) midway between pulleys. Tighten the four mounting bolts.

Do not permit the motor to twist or cock on its mount. Uneven belt wear and bearing damage will result.

(5)

Close access door.

(6)

Connect power.

4-77.

UNIT HOUSING ITEMS See figure 4-43.

a. Replacement of the dee ring lifting fittings and drain tube items can be done easily by opening the appropriate

access door, removing the hardware and replacing the affected part.

b. For replacement of the unit mounts and heat shield gaskets it is necessary to remove the refrigerator unit

from the wall of the box.

c. To remove the unit mounts it is also necessary to remove the top evaporator screen or the evaporator air

housing and screen depending on which mount must be replaced. (See figures 4-43 and 4-12.)

For heat shield gasket replacement it is also necessary to:

(1)

Remove the heat shield spacers (2 each gasket) and screws (2 each spacer).

(2) Should replacement gasket not be cut to length with corners mitered at 450 angles, be sure that you

measure and duplicate the gasket being replaced prior to removing the old one.

(3)

Remove as much old gasket material as possible by pulling or scraping it away from the metal surface.

Acetone and methyl-ethyl ketone (MEK) are flammable, and their vapors can be explosive. Repeated or

prolonged skin contact or inhalation of vapors can be toxic. Use a well ventilated area, wear gloves, and

keep away from sparks or flame.

(4)

Soften and remove old adhesive and gasket residue, using acetone or methyl-ethyl ketone (MEK) and a

stiff brush.

(5) Coat the mating surfaces of the metal and the gasket with adhesive. Let both surfaces air dry until the

adhesive is tacky but will not stick to the fingers.

(6)

Starting with an end, carefully attach the gasket or insulation to the metal. Press into firm contact all

over.

4-96