This section contains Standard Maintenance Practices and Standard Procedures. Standard maintenance
practices are those which you should do automatically when doing a task. Instructions for standard main-
tenance practices will not normally be included in task steps. Standard procedures are common detail pro-
cedures you may have to do to complete a task. Initial setup tables list task numbers of standard proce-
dures when you need them. Task steps telI you when to use standard procedures.
1-117 STANDARD MAINTENANCE PRACTICES
A. General disassembly practices areas follows:
(1) Record and tag defective parts. Record reason for rejection (exclude parts that are normally
replaced such as gaskets, packings, etc.).
(2) When disconnecting electrical connectors or hose and tube fittings, remove clamps or brackets,
as required, to gain slack and to avoid damage to connectors and fittings.
(3) Tag lines before they are disconnected. Protect all lines, fittings, and ports with clean caps, foil or
plugs. If plastic caps and plugs are used, be sure that no chips are generated during installation.
(4) Wear gloves (E20) when handling lubricating oils or turbine fuels. Wear gloves (E20) during re-
moval and disassembly tasks for all lubricating oil or fuel related components and lines.
(5) During removal tasks, allow fuel and oil lines and components to drain into suitable containers.
Storage and disposition of fuel and oil shall be in accordance with proper Army regulations. Wipe up
spilled fuels and oils using wiping rag (E58). When required, specific instructions for draining components
are included in tasks.
(6) Tie lines and related parts out of the way with twine, not lockwire.
(7) Record thickness of removed shims and tag them, when applicable.
Never use a lead (graphite) pencil to matchmark hot
end parts. Lead will contaminate the metal and cause
cracks. Damage to engine will occur.
(8) Prior to removal or disassembly, matchmark all hot end parts for proper installation with mark-
ing pencil (E34).
(9) Apply penetrating oil (E39) to parts (especially those exposed to high temperatures) to make
removal easier. On parts to be reinstalled, remove all penetrating oil from part by cleaning with dry clean-
ing solvent (E17).