Chapter 4. MAINTENANCE INSTRUCTIONS - TM-55-4920-411-13-P0018

TM 55-4920-411-13&P

CHAPTER 4

MAINTENANCE INSTRUCTIONS

Section I. PREVENTIVE MAINTENANCE CHECKS AND SERVICES

4-1. General.

with proper equipment Report any deficiencies using

the proper forms, see DA PAM 738-751.

Preventive maintenance checks and services consists

of a visual inspection to be done at each operation of the

4-2. Inspections.

test set, operational check, any troubleshooting re-

quired, and the repair required to correct any malfunc-

Do inspections as shown in Table 4-1.

tions. If your equipment does not operate, troubleshoot

Table 4-1. Operator/Aviation Unit Preventive Maintenance Checks and Services

NOTE: Within designated interval, these checks are to be performed in the order listed.

A After

B Before

D During

Procedures

Interval

Equipment is not ready/

Check for and have repaired

Item to be

Item

available if:

or adjusted as necessary

Inspected

No.

Check for broken wires,

Cables

burnt insulation, damage or

dirt in connectors.

Positive action and freedom

Controls and Switches

(of movement.

Cleanness and absence of

Bezel

scratches.

Check operation of lights.

Lights and Indicators

Section Il. TROUBLESHOOTING

system is followed by a list of tests or inspections

4-3. Scope.

necessary for you to determine probable causes and

a. This section contains troubleshooting or malfunc-

corrective actions for you to remedy the malfunction.

tion information and tests for locating and correcting

b. This manual cannot list all possible malfunctions

most of the troubles which may develop in the Tem-

that may occur or all tests or inspections and corrective

erature and Speed Simulator. Each malfunction or

actions. If a malfunction is not listed (except when

trouble symptom for an individual component, unit, or

4-1