Table 2-1. Preventative Maintenance Checks and Services

TM 5-4120-369-14

Table 2-1.

Preventative Maintenance Checks and Services

If the air conditioner must be kept in continuous operation, check

NOTE:

and service only those items that can be checked and services

without disturbing operation. Make complete checks and services

when the air conditioner can be shut down.

B - Before Operation D - During Operation A - After Operation

FOR READINESS

PROCEDURES

REPORTING, EQUIPMENT

CHECK FOR AND HAVE

ITEMS TO BE

ITEM INTERVAL

IS NOT READY/

NO. B D A

INSPECTED

REPAIRED OR ADJUSTED

AVAILABLE IF

AS NECESSARY

With cover rolled up for

Condenser Fabric

Cover

air conditioner operation,

check securing ties for

damage.

Obstructions can not be

Inspect for obstruction

Condensate Drains

removed.

to drainage. Remove

obstruction.

Damage to connector pre-

Main Power Receptacle Check for secure power

vents satisfactory connec-

connection. Tighten if

Connector

tion.

necessary.

Yellow indicates moisture;

Liquid Sight Indicator Check for moisture and

bubbles or milky appear-

low refrigerant charge.

(Sight Glass)

ante indicates low charge.

(After unit has run for

a minimum of 2 hours.)

Any condition in proce-

Air Conditioner

Check for abnormal opera-

dures column is observed.

Operation

tion vibration, unusual

noise, failure to respond

to controls.

Information Plates

Missing or damaged.

Missing, damaged, no

Covers

mildew. All snaps in

good condition. Cover

must be rolled and

stored on top of unit

during operation.

Panels

No major dents or cracks.

No missing or loose screws.

Grilles (Louvers)

No major dents or cracks.

No missing or loose screws.

Screens and Guards

No major dents or cracks.

No missing or loose screws.

Air

Filter

Check that filter is clean.

Condensate Drain

No water dripping any-

where except through

drain.

Control Module

Check that knobs are not

missing.

2-7