CHAPTER 2 OPERATING INSTRUCTIONS - TM-11-6665-230-120015

TM 11-6665-230-12

CHAPTER 2

OPERATING INSTRUCTIONS

SECTION I DESCRIPTION AND USE OF OPERATOR'S CONTROLS AND INDICATORS

2-1. OPERATOR CONTROLS AND INDICATORS (fig. 2-1) The six position function switch peforms the

following functions:

Radiacmeter Function

Switch Position

No power or removal of power

OFF

BAT CON D

Connects battery to meter for battery checks

NOTE

The next 4 switch positions connect the batteries to operate

the radiacmeter in different ranges of sensitivity.

500

First scale on the meter; used to measure strong radiation

levels up to 500 mR/hr. (5000 u Gy (mrad)/hr)

Second scale on the meter; used to measure radiation levels

up to 50 mR/hr. (500 u Gy (mrad)/hr)

Third scale on the meter; used to measure weak radiation

levels up to 5 mR/hr. (50 u Gy (mrad)/hr)

Lowest on the meter; used to measure weak radiation levels

0.5

up to 0.5 mR/hr. (5 u Gy (mrad)/hr)

SECTION II PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)

2-2. GENERAL

NOTE

To be sure that the Radiac Set is always ready for use, you must do PREVEN-

TIVE MAINTENANCE CHECKS AND SERVICES (PMCS).

a. Before You Operate. Perform your B PMCS to be sure that the Radiac Set is always ready for use.

Always keep in mind the CAUTIONS and WARNINGS that appear in this manual (fig. 2-1).

b. While You Operate. Perform your D PMCS. This should help you spot small troubles before they

become big problems. Always keep in mind the CAUTIONS and WARNINGS that appear in this manual.

c. After You Operate. Perform your A PMCS. This should help you keep the Radiac Set in top shape.

d. When The Radiac Set Fails To Operate. Follow the maintenance instructions in Chapter 3.

Report any deficiencies using the proper forms in accordance with DA Pam 738-750

2-3. PMCS PROCEDURES (Table 2-1)

a. The PROCEDURES column in your PMCS chart instructs you to "CHECK AND HAVE REPAIRED

OR ADJUSTED AS NECESSARY". Carefully follow these instructions and if tools are needed or the chart

instructions tell you, get organizational maintenance to do the necessary work.

2-1