TM55-2840-251-23
SECTION VIII GENERAL MAINTENANCE PROCEDURES (Continued)
1-75
INSPECTION OF INSTALLED ITEMS
Inspect engine for:
damage,
leaks,
broken lockwire,
loose or missing nuts or
bolts,
chafing of tube assemblies,
full and free movement of
controls,
fraying of electrical harness,
and loose electrical
connections.
1-76
DISASSEMBLY
1.
Refer
to
Chapters
2
thru
10
for
removal/disassembly (where applicable) of engine
components.
WARNING
·
When handling combustion chamber
internal parts, that have been exposed
to fuel containing tetraethyl lead,
insure that the by-product (poisonous
lead oxide) is not inhaled or taken into
the body through cuts or other
external openings.
·
If accidental exposure occurs, drench
affected area with large amounts of
clear water and obtain immediate
medical attention.
·
Gloves and a face mask shall be worn
at
all
times
when
handling
contaminated parts.
2.
Extreme care must be taken to prevent dust, dirt,
lockwire, nuts, washers or other foreign matter from
entering the engine.
If at any time such items are dropped, the disassembly
process must stop until the dropped articles are located,
even though this may require considerable time and
labor.
3.
The strength of material at lockwire holes is
marginal, therefore lockwire should be cut, not pulled
during removal of lockwire.
4.
Discard all preformed packings, packing retainers
(backup rings), keywashers, cotterpins and gaskets, and
replace with new parts during assembly.
5.
During the removal of tubes or engine parts look
for indications of scoring, burning or other undesirable
conditions. To facilitate reinstallation, tag and mark all
parts, clips and brackets to indicate their locations.
CAUTION
Dust caps used to protect open lines
against contamination should always
be installed over the tube ends and
not inside. Fluid flow through the
lines may be blocked off if lines are
inadvertently installed with dust caps
inside the tube
6.
Suitable caps, plugs and other sealing devices
must be used to protect all openings as soon as they are
exposed.
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