Section V. FIELD EXPEDIENT REPAIRS

Section V. FIELD EXPEDIENT REPAIRS

3-11. General

3-12. Compressor Inoperative

Organizational m a i n t e n a n c e troubles may

Trouble

Expedient remedy

occur while the air conditioner is operating in the

Compressor overload pro- Bypass the protector by instal-

ling two insulated jumper

tector malfuntioning

field where supplies and repair parts are not

wires between the connec-

available and normal corrective action cannot be

tion terminals on the com-

performed. When this condition exists, the fol-

pressor.

lowing expedient repairs may be used in emer-

313. Control Circuit Inoperative

gencies, upon decision of the unit commander.

Trouble

Expedient remedy

Equipment so repaired must be removed from

Fuse blown . . . . . . . . . . . . . . Remove the front access panel,

service as soon as possible and properly repaired

control box cover, and fuse.

before being put into service again.

Install jumper wire and by-

pass fuse.

Section VI. ORGANIZATIONAL MAINTENANCE PROCEDURES

3-14. General

(2) Refer to figure 3-4 and remove the air

conditioning filter.

The air conditioner is constructed with remov-

b. Cleaning and Inspection.

able aluminum panels and grills. The front access

(1) Clean the air conditioning filter thor-

panel (fig. 1-1) provides access to the control

oughly (para 3-6).

panel, the control box, and service valves. A dis-

(2) Inspect filter for damage, replace dam-

charge grill protects the evaporator coil and con-

aged filter.

trols the discharge of conditioned air. The intake

(3) Dip or spray filter with MIL-L-2104 oil,

grill protects the air conditioning filter and regu-

grade OE-10 or OE20. Drain excess oil from

lates the amount of air intake. The condenser coil

filter.

grill (fig. 1-2) protects the condenser coil. A fan

c. Installation. Install the air conditioning

guard (fig. 3-5) is mounted on the rear to protect

filter by reversing the order of removal.

operating personnel from the condenser fan. The

fresh air inlet screen permits the entry of outside

3-17. CB Cover, Fan Guard, Condenser Coil

air, which is controlled by a damper door control

Grill and Screen

(fig. 1-1). The C/B cover is provided for ease of

a. Refer to figure 3-5 and remove the C/B

installation of a chemical/biological filter when

cover, fan guard, condenser coil grill and screen.

required.

b. Cleaning, Inspection, and Repair.

3-15. Cover Panel, Grills, and Front Access

(1) Clean C/B cover and grill with an ap-

Panel

proved solvent.

a. Removal. Refer to figure 3-3 and remove the

(2) Clean fan guard and screen with com-

cover panel, grills, or front access panel as re-

pressed air. Brush as required.

quired.

(3) Inspect components for damage, repair

b. Cleaning, Inspection, and Repair.

minor damage and replace a severly damaged

(1) Clean panels and grills with an approved

component.

solvent and dry thoroughly.

c. Installation. Install the C/B cover, fan

(2) Inspect panels and grills for damage. In-

guard, condenser coil grill, and screen by revers-

spect gaskets for wear or damage.

ing the order of removal.

(3) Minor dents may be hammered out by

3-18. Evaporator Fan and Inlet Ring

placing a flat board or similar object over dent

a. General. The evaporator fan is of the air foil

a n d hammering on board. Louvers may be

design to reduce excess noise and vibration.

straightened with standard pliers. Replace sev-

b. Removal.

erly damaged components.

(1) Remove the air intake grill (para 3-15).

c. Installation. Install the panels and grills by

(2) Refer to figure 36 and remove the eva-

reversing the order of removal.

porator fan and inlet ring.

3-16. Air Conditioning Filter

c. Cleaning and Inspection.

a. Removal.

(1) Clean the fan and intake ring with an

(1) Remove the air intake grill (para 3-15).

approved solvent.

3-5