Dismantling for Movement.

TM 5-4110-217-14

2-6. Dismantling for Movement.

2-9. The purpose of the controls and instruments

a. Limited Movement.

For moving a short

and the normal and maximum reading of the

distance, involving limited handling, it is necessary only to

instruments are as follows:

detach the unit from the refrigerator, and use forklift

equipment to place the unit on a transport vehicle.

Thermostat.

b. Extensive Movement. Pump down refrigerant

(1) General. The thermostat (fig. 2-3) is

and close all refrigerant valves. Detach the unit from the

mounted on the rear of the control panel. It is in the main

refrigerator. Seal all openings in the cabinet with barrier

control circuit of the refrigeration unit and automatically

material and sealing tape. Cover entire unit with barrier

starts and stops unit to maintain the desired temperature

material. Repack the unit in its original shipping crate,

in the box. A two conductor wire extends from the body

using the reverse of paragraph 2-2, Unpacking the

of the thermostat to a temperature-responsive bulb

Equipment. Use forklift equipment to place the unit in a

attached to evaporator guard grille. When the unit switch

transport vehicle.

is closed, current flows through the high-pressure cutout

and starter solenoid to start the engine. When the box is

2-7. Reinstallation After Movement.

cooled to the preset temperature, the points in the

thermostat open and the electrical circuit to the engine

Refer to paragraph 2-5, Installation or Setting Up

magneto is grounded stopping the engine.

(2) Operation.

The differential (difference

Instructions.

between cut-in and cut-out points) is set at approximately

2-8. Controls and Instruments.

30F. For example, if the thermostat is to maintain 350F,

the unit will stop when the box reaches 35F, and will

This section describes, locates, illustrates and

start again when the temperature rises to 380F. To set

furnishes the operator, crew or organizational

the thermostat to the temperature desired in the box, use

maintenance personnel sufficient information about the

the adjusting knob on the front of the control panel. Turn

various controls and instruments for proper operation of

the refrigeration unit.

Figure 2-3. Control Panel, Front

2-3