Special Information. - TM-5-4120-274-35P0011

5. How to Locate Repair Parts.

h. Depot Maintenance Allowance Per 100

Equipments. This column indicates opposite the

first appearance of each item the total quantity

a u t h o r i z e d for depot maintenance of 100

a. When Federal stock number or reference

equipments. Subsequent appearances of the same

number is unknown:

item will have the letters "REF" in the allowance

column. To locate the referenced item, locate the

(1) First. Using the table of contents,

FSN or reference number in the index. The earliest

determine the assembly group within which the

figure and item number is the referenced item.

r e p a i r part belongs. This is necessary since

Items authorized for use as required but not for

illustrations are prepared for assembly groups and

initial stockage are identified with an asterisk in

listings are divided into the same groups.

the allowance column.

(2) Second. Find the illustration covering

the assembly group to which the repair part

This column is divided as

i. Illustration.

belongs.

follows:

(1) Figure Number. Indicates the figure

(3) Third. Identify the repair part on the

number of the illustration in which the item is

illustration and note the illustration figure and

shown.

item number of the repair part.

(2) Item Number. Indicates the callout

(4) Fourth. Using the Repair Parts Listing,

n u m b e r used to reference the item in the

find the assembly group to which the repair part

illustration.

belongs and locate the illustration figure and item

number noted on the illustration.

4. Special Information.

b. When Federal stock number or reference

a. Identification of the usable on codes

number is known:

inc1uded in the description columns of this

publication are:

(1) First. Using the Index of Federal Stock

N u m b e r s and Reference Numbers find the

Code

Used on

pertinent Federal stock number or reference

number. This index is in ascending FSN sequence,

Model CV-9-1-30-60

cross-referenced to the illustration figure number

Model CV-9-1-15-60

and item number.

Model CV-9-3-08-400

Model CV-9-3-08-60

(2) Second. Using the Repair Parts Listing,

Note: Repair Parts without usable on codes

find the assembly group of the repair part and

are applicable to all Models.

illustration figure number and item number

referenced in the Index of Federal Stock Numbers

and Reference Numbers.

b. Repair parts mortality has been based on

7200 hours operation per year.

c. When the Federal stock number or

reference number is known and the repair part is

c. Parts which require manufacture or

not illustrated:

assembly at a category higher than that authorized

for installation will indicate in the source column

(1) First. Using the Index of Federal Stock

the higher category.

N u m b e r s and Reference Numbers find the

pertinent Federal stock number or reference

d. The following publications pertain to the

number in the section titled Items not Illustrated

and note the group number. This section of the

Air Conditioning Units and its components

index is in ascending FSN sequence followed by a

list of reference numbers in alpha-numeric

Operator, Organizational,

TM 5-4120-274-15

sequence, cross-referenced to assembly group

DS, GS, and Depot

number.

Maintenance Manual

(2) Second. Using the table of contents,

TM 5-4120-274-20P Organizational Maintenance

locate the assembly group number and page

Repair Parts and Special

number.

Tool Lists