Table 4-4 Monthly Preventive Maintenance Checks and Services

TM 11-6625-2478-12

Table 4-4 Monthly Preventive Maintenance Checks and Services - Continued

Sequence

Paragraph

No.

Item

Procedure

reference

Switch

Setting

9-Con-

RHA MODE

SINGLE

tinued

BCD THUMBWHEEL

OFF

AND PANEL

SWITCH TEST

DECIMAL THUMB-

OFF

WHEEL SWITCH

TEST

DEIMAL THUMB-

OFF

WHEEL AND

PANEL SWITCH

TEST

ON-OFF

OFF

-522VDC,

Set ON-OFF switch t ON. Indicator lamps specified should

(Para 4-7)

+ 500VDC,

light.

-80VDC,

115VDC,

115VAC,

6.3VAC, GO,

and +5V

indicator

lamps

BCD + 3 indicator

PRESS BCD + 3-PRESS TO TEST switch. All BCD + 3

(Para 4-7)

lamps

indicator lamps should light.

DECIMAL indicator

Firmly press DECIMAL--PRESS TO TEST switch.

(Para 4-7)

lamps

All DECIMAL indicator lamps should light.

BCD, BATTERY

Press BCD-PRESS TO TEST switch. All indicator lamps

(Para 4-7)

INDICATOR,

specified should light

SINGLE PULSE

INDICATOR,

and FAILURE

indicator

lamps

Shutdown

Set ON-OFF switch to OFF.

None

Table 4-5. Quarterly Preventive Maintenance Checks and Services

Sequence

Paragraph

No.

Item

Procedure

reference

Publications.................. Check to se that all pertinent publications are current,

(DA Pam

complete and serviceable Requisition pertinent publications

310-4

not on hand.

and App A)

Modifications ................ Determine whether new MWO's have been published.

DA Pam

URGENT MWO's must be applied. All NORMAL MWO's

310-7

must be scheduled (TM 38-7).

Completeness............... Check to see that equipment is complete. (Para 1-7a)

Paint............................. Inspect equipment for condition of paint. If surfaces bear

many scratches, turn equipment in for higher category

maintenance.

4-5. Cleaning

use near open flame as it is flammable.

a. Use a clean, dry, lint-free cloth to remove

To clean exterior surfaces of Simulator, Monitor Input

moisture and loose dirt.

SM-27/AYM-9 and Case, Test Set CY-7117 /AYM-9, use

b. Use a clean, lint-free cloth dampened (not wet)

cleaning compound trichloroethane FSN 6810-664-0273

and proceed as follows

with cleaning compound trichloroethane FSN 6810-664-

WARNING

0273 to remove grease, fungus, and dirt from

exterior surfaces.

Prolonged breathing of cleaning compound

trichloroethane FSN 6810-664-0273 is dangerous.

Provide adequate ventilation when using. Do not

4-3