How to Locate Repair Parts - TM-9-1240-298-34P0006

Code

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5. How to Locate Repair Parts.

M34

a. When Federal stock number or reference

M34A1

number is unknown:

M34A2

(1) First.

Using the table of contents

M34A2C

determine the functional or subfunctional group within

M34, M34A1

which the repair part belongs, i.e., engine, engine

M34A1, M34A2

assembly, transmission, transmission assembly. This is

M34A2, M34A2C

necessary since illustrations are prepared for functional

b. Action change codes indicated in the left- hand

and subfunctional groups, and listings are divided into

margin of the listing page denote the following:

the same groups.

N-Indicates an added item.

(2) Second. Find the illustration covering the

C-Indicates a change in data.

functional or subfunctional group to which the repair part

R-Indicates a change in FSN only.

belongs.

c. To maintain disassembly sequence in this

(3) Third.

Identify the repair part on the

manual, a number in parentheses will be displayed

illustration and note the illustration figure and item

immediately to the right of the callout number on the

number of the repair part.

illustration.

(4) Fourth. Using the Repair Parts Listing,

d. Refer to TM 9-1240-213-35P repair parts for

find the functional or subfunctional group to which the

Telescope Elbow M62, M62A1C and M63A1D, and TM

repair part belongs and locate the illustration figure and

9-1240-242-34P for Adapter Telescope M9 and M9A1.

item number noted on the illustration.

e. The following publications pertain to sight unit

b. When Federal stock number or reference

M34 series.

number is known:

Sight Unit M34, M34A1, and M34A2.

(1) First. Using the index of Federal Stock

TM 9-1015-200-12 Operator and Organizational Main-

Numbers and Reference Numbers find the pertinent

tenance Manual for mortar, 81-mm

Federal stock number or reference number. This index is

M29A1 (1015-999-7794) and mor-

in ascending FSN sequence followed by a list of

tar 81-mm M29 (1015-840-1836).

reference numbers in ascending alphanumeric

TM 9-1015-200-20P Organizational Maintenance Repair

sequence, cross-referenced to the illustration figure

Parts and Special Tools List

number and item number.

for mortar 81-mm M29 (1015-

(2) Second. Using the Repair Parts Listing,

840-1836), mortar 81-mm M29A1

find the functional or subfunctional group of the repair

(1015-999-7794).

part and the illustration figure number and item number

TM 9-1015-215-12 Operator and Organizational Main-

referenced in the Index of Federal Stock Numbers and

tenance Manual: Mortar 4.2 inch

Reference Numbers.

(cannon M30 on mount M24 or

M24A1) and Mortar Subcaliber, 60

6. Abbreviations.

mm M31.

Abbreviations

Explanation

TM 9-1015-215-20P Organizational Maintenance Repair

brz

bronze

Parts and Special Tools List, Mor-

cone point

tar 4.2 inch cannon M30 on mount

cres

corrosion resistant steel

M24 (1015322-9720) or M24A1

cskh

counter sunk

(1015-840-1840), and Mortar, Sub-

deep

caliber 60 millimeter M31.

dia

diameter

TM 9-3140

Operator and Organizational Main-

filh

fillister head

tenance 75-mm rifles M30 and

flat

T21E12, tripod mount M917A2,

fnsh

finish

and weapon tripod mount M74.

flat point

SM ORD 7-C-74

Rifle 75-mm, M20 and T21E12

hdls

headless

(to 39A-5BE-5)

hex soc

hexagon socket

SM ORD C-74

Rifle 75-mm M20 T21E12

hld

helical

SM ORD 9-C-74

Rifle 75-mm M20 T21E12

inside diameter

Sight Unit M34A2C.

intl

initial

TM 9-1055215-12

Operator and Organizational Main-

long

tenance Manual 115 mm Multiple

national fine

Rocket Launcher M91.

number

TM 91055-215-20P Organizational Maintenance Re-

overall

pair Parts and Special Tools

List for 155-mm Multiple Rocket

Launcher M91 (T145).