CLEANING - CONTINUED
Use clean rags dampened with cleaning compound (item 5, appendix C) to clean dust, dirt, and ,grease from electrical
wiring harnesses and connectors. If parts are too dirty to wipe clean, dip them into cleaning compound, shake off excess,
and wipe clean with clean dry rags. To get dirt out of recessed area, use a stiff brush. Wiring harnesses and connectors
must be completely dry before use. Dry wiring harnesses and connectors with clean dry rags and allow to air dry. To
speed up drying time, use dry compressed air at less than 30 psi (207 kPa) to prevent personal injury.
Cover parts after cleaning to protect from dust and dirt.
General cleaning covered by other manuals is as follows:
TM 9247: Materials Used for Cleaning, Preserving, Abrading, and Cementing Ordnance Materiel and Related Materials,
TM 9214: Inspection, Care, and Maintenance of Antifriction Bearings
TB 750-1047: Elimination of Combustibles from Interiors of Metal or Plastic Gasoline and Diesel Fuel Tanks (TO 36Y31-
Parts must be inspected to find out which can be used and which must be replaced. Specifications and tolerances are
given in this manual but sometimes you must make the decision which parts should be replaced.
To find out if you can use a part that is otherwise in good condition, check the clearance between mating surfaces. If
clearance is within tolerance, reinstall part.
Inspect castings for wear, distortion, cracks, and breaks in and around drilled and tapped holes. Look for damaged
Carefully look at all machined surfaces and polished areas. Use a light to shine across polished surfaces to check for
score marks, cracks, breaks, and too much wear.
Inspect gears for cracked, nicked, and chipped teeth. Look for metal to metal abrasion, pitting, and wear. When a gear is
found to be defective, replace it and its mating gear.
Use tags (item 21, appendix C) with fasteners to identify all electrical wires; hydraulic, fuel, oil, and coolant lines; and any
other parts which may be hard to identify or place later. Fasten tags to parts during removal by wrapping fasteners around
or through parts and twisting ends together. Position tags so they are out of the way during cleaning, inspection, and
repair. Mark tags with a pencil or pen.
To avoid confusion, identify electrical wires with number of terminal or wire to which it connects whenever possible. If no
markings can be found, tag both wires or wire and terminal, and use the same identifying mark for both. If you cannot tag
a wire because it must fit through a small hole or you cannot reach it, write down a description of the wire and the point to
which it connects, and draw a simple diagram on paper. Be sure to write down enough information so you will be able to
connect wires correctly during assembly.