70-00-00
GENERAL
To facilitate and ensure proper reinstallation, tag and/or mark all parts and hardware as to
their location as they are removed or disassembled.
When removing any tubes or engine parts, look for indications of scoring, burning or other
undesirable conditions. Tag any unserviceable parts or units for investigation and possible
repair. Take extreme care to prevent foreign matter (lockwire, nuts, washers, dirt, etc.) from
entering the engine whether it is on or off the aircraft. Make use of protective caps, plugs,
and covers to ensure openings are unexposed.
CIAUTION. . .
Dust caps used to protect open lines should always be installed
OVER
the tube
ends and
NOT
IN
the tube ends. Flow through the lines may be blocked
off
if
lines are
inadvertently installed with the dust caps in the tube ends.
If anything is dropped into the engine, work should be stopped immediately and the item
removed even if considerable time and labor is required.
Insure all parts are thoroughly clean before assembling, especially during engine build-up.
All
lockwire and cotter pins must fit snugly in holes drilled in specific hardware. On
castellated nuts, the cotter pin head must fit into a recess of the nut with the other end bent
such that one leg is back over the stud and the other is down flat against the nut. Use only
corrosion resistant steel for cotter pins or lockwire.
When replacing gaskets, packings, or rubber parts, use the same type or composition as that
of the part that was removed.
Make sure replacement nonmetallic parts show no sign of storage deterioration.
Use only a plastic or rawhide mallet when installation of a part requires such force.
Loose fitting spline drives external to the engine which have no means of lubrication should
be lubricated with an anti-seize lubricant such as molybdenum disulfide.
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