Before beginning a task, find out how much repair, conversion, or replacement is needed to fix the equipment
as described in this manual. Sometimes the reason for equipment failure can be seen right away, and com-
plete teardown is not necessary. Disassemble equipment only as far as necessary to repair or replace dam-
aged or broken parts.
All tags and forms attached to the equipment must be checked to learn the reason for removal from service.
Also, check all Modification Work Orders (MWO) and Technical Bulletins (TB) for equipment changes and
In some cases, apart may be damaged by removal. If the part appears to be good, and other parts behind it
are not defective, leave it on and continue the procedure.
Replace all gaskets, seals, and packings.
a. The cleaning instructions will be the same for the majority of parts and components which make up
b. The importance of cleaning must be thoroughly understood by maintenance personnel. Great care
and effort are required in cleaning. Dirt and foreign material are a constant threat to satisfactory main-
tenance. The following should apply to all cleaning, inspection, repair, and assembly operations:
Washing electrical cables and flexible hoses with drycleaning solvents or
mineral spirits will cause serlous damage or destroy the material.
Wash electrical cables and flexible hoses with water and mild soap solution, and
1. Clean all parts before inspection, after repair, and before assembly.
2. Hands should be kept free of any accumulation of grease, which can collect dust, dirt, or grit.
3. After cleaning, all parts should be covered or wrapped to protect therefrom dust and dirt. Parts
which are subject to rust should be lightly oiled.
Particles blown by compressed air are hazardous. Do not exceed 30 psi (207
kPa) air pressure. Make certain the airstream Is directed away from user and
other personnel in the area. To prevent injury, user must wear protective gog-
gles or face shield when using compressed air.
c. Blow out tapped (threaded) holes with compressed air to remove dirt and cleaning fluids.