Operator's and Organizational Maintenance Manual Including Repair Parts and Special Tools Lists

Changes in force: C 1, C 2, C 3, and C 4

TM 11-6625-599-12

HEADQUARTERS

CHANGE

DEPARTMENT OF THE ARMY

WASHINGTON , DC, 28 July 1976

No. 4

Operator's and Organizational Maintenance Manual

Including Repair Parts and Special Tools Lists

V O L T M E T E R S , ELECTRONIC AN/USM-98A AND AN/USM-98B

TM 11-6625-599-12, 24 November 1964, is changed as follows:

P4610.19B, and DSAR 4500.15.

The title of the manual is changed as shown

above.

1-3.1. Reporting of Errors

So much of paragraphs 1-5, 2-5, and 2-7 as reads

The reporting of errors, omissions, and recommenda-

"60 cycles" is changed to read" 60 Hz."

tions for improving this manual by the individual

Page 5. Paragraphs 1-3 and 1-3.1 are superseded as

user is encouraged. Reports should be submitted on

follows:

DA Form 2028 (Recommended Changes to Publica-

1-3. Forms and Records

tions and Blank Forms) and forwarded direct to

Commander, US Army Electronics Command,

a. Reports of Maintenance and Unsatisfactory

ATTN: DRSEL-MA-Q, Fort Monmouth, NJ 07703.

Equipment. Maintenance forms, records, and re-

ports which are to be used by maintenance person-

Page 7. Paragraph 1-8 Add the following at the

nel at all maintenance levels are listed in and

end of the paragraph: The AN/USM-98B has been

prescribed by TM 38-750.

manufactured under several orders with minor

b. Report of Packaging and Handling Deficien-

differences in repair parts; appendix IV covers the

ties. Fill out and forward DD Form 6 (Packaging Im-

earlier units; appendix V covers later units

p r o v e m e n t Report) as prescribed in AR

manufactured under contract DAAB07-74-C-0622.

700-58/NAVSUPINST 4030.29/AFR 71-13/MCO

Page 22. The title of figure 6 is changed to read

P4030.29A, and DSAR 4145.8.

" V o l t m e t e r , Electronic AN/USM-98A and

c. Discrepancy in Shipment Report (DISREP)

AN/USM-98B, rear view of front panel, parts loca-

(SF361). Fill out and forward Discrepancy in Ship-

tion."

ment Report (DISREP) (SF361) as prescribed in AR

Page 26. Appendix II is superseded as follows:

55-38/NAVSUPINST 4610.33A/AFR 75-18/MCO

APPENDIX II

M A I N T E N A N C E ALLOCATION

Section I. INTRODUCTION

A2-1. General

a. Inspect. To determine the serviceability of an

item by comparing its physical, mechanical, and/or

This appendix provides a summary of the mainte-

electrical characteristics with established standards

nance operations for AN/USM-98A and

through examination.

AN/USM-98B. It authorized categories of mainte-

nance for specific maintenance functions on repair-

b. Test. To verify serviceability and to detect inci-

able items and components and the tools and equip-

pient failure by measuring the mechanical or

ment required to perform each function. This appen-

electrical characteristics of an item and comparing

dix may be used as an aid in planning maintenance

those characteristics with prescribed standards.

operations.

c. Service. Operations required periodically to

A2-2. Maintenance Function

keep an item in proper operating condition; i.e., to

clean, preserve, drain, paint, or to replenish

Maintenance functions will be limited to and

fuel/lubricants/hydraulic fluids or compressed air

defined as follows: