CLEANING INSTRUCTIONS.

TM 55-1740-200-14

b. If bearings are covered with grease or heavy oil,

g. Drycleaning solvent, item 18, table 1-3.

immerse bearings in OE-10 lubricating oil (item 28, table

1-3) to remove the major portion of the old lubricant.

h. Mineral spirits paint thinner, item 22, table 1-3.

c. Allow the bearings to drain thoroughly after

i. Cleaning compound, item 23, table 1-3.

removal from the oil. Rotate the bearings in mineral

j. Alkali-type paint remover, item 24, table 1-3, class

spriits paint thinner (item 22, table 1-3) for final

1 and 2.

cleaning.

k. Powdered technical talcum, item 25, table 1-3.

Do not spin bearings with air stream. Damage

1. Preservative lubricating oil, item 26, table 1-3.

to unlubricated highly polished surfaces may

result.

3-38. CLEANING INSTRUCTIONS.

d. Dry bearings with clean dry compressed air taking

3 - 3 9 . PAINTED METAL PARTS AND

care not to spin bearings.

SURFACES. Clean painted metal parts and surfaces as

follows:

e. Lubricate the bearings immediately with lubricant

(item 29, table 1-3) and wrap in clean wax paper until

required for reassembly.

a. Clean painted surfaces with clear water or a solution

of six ounces of painted surface detergent (item 27, table

1-3) to one gallon of water.

3-42. ELECTRICAL PARTS. Clean electrical parts with

trichlorethylene (item 20, table 1-3). Do not soak

electrical components. Dry with low pressure air.

b. Clean ferrous metal parts with alkali-type paint

remover (item 24, table 1-3) class 1.

3-43. RUBBER PARTS. Clean rubber parts (other than

electrical parts) with soap and water. Wipe dry and apply

3-40. MACHINED METAL PARTS. Machined metal

a coating of talcum (item 25, table 1-3) to preserve the

rubber.

parts should be cleaned as follows:

3-44. LEATHER PARTS. Leather or imitation leather

a. Clean grease or oil from unpainted surfaces with

parts are to be cleaned as follows:

decreasing solvent (item 21, table 1-3) mineral spirits

paint thinner (item 22, table 1-3) or drycleaning solvent

a. Scrape off accumulations of grease and dirt with a

(item 18, table 1-3).

piece of wood.

b. Clean all non-ferrous metal parts with cleaning

b. Clean with leather dressing compound (item 30,

compound (item 23, table 1-3) or alkali-type paint

table 1-3) or wash with saddle soap (item 31, table 13)

remover (item 24, table 1-3), class 2.

and water.

c. After parts are clean, dry either with a clean,

c. Rinse all parts lightly with clean water.

lintless cloth or low pressure air.

d. While the leather is still damp, apply a coating of

d. Coat all polished or machined surfaces with

neet's foot oil (item 32, table 1-3).

preservative lubricating oil (item 26, table 1-3).

e. Allow water-soaked items to dry in direct sunlight

3-41. ANTI-FRICTION TYPE BEARINGS. Anti-friction

or by artificial light.

type bearings must be cleaned with care. Clean bearings as

described below.

3-45. CANVAS. Canvas belts and protective boots

should be cleaned as follows:

Clean anti-friction bearings (if not of the sealed

type)

by rotating bearings in mineral spirits paint thinner

a. Remove loose dirt with a clean dry brush or with

(item

22, table 1-3) or drycleaning solvent (item 18,

saddle soap (item 31, table 1-3) and water.

table

1-3).

3-8