to meet limits specified in this sec-
ports and orifices capped, plugged or
sealed with recommended type of noncor-
rosive pressure sensitive tape and pro-
Arrange all parts on an inspection
table to assist in judgement of the
by clean paper or plastic covers. Steel
parts shall be sprayed with corrosion
condition of the unit as a whole,
with ready reference to other compo-
preventive oil and covered with clean
nent parts which may have been af-
paper or suitable coverings.
fected by a worn part. In this way,
it will often be possible to deter-
sity of maintaining the cleanliness of
mine the cause of any abnormal wear.
all components. When considerable time
will elapse between cleaning and inspec-
If inspection reveals it necessary to
tion or reassembly, cleaned parts shall
repair or replace a part, tag the
be placed in clear nonhygroscopic plas-
tic bags to prevent corrosion and con-
part to indicate disposition.
tamination by dirt or dust.
will facilitate repair and assembly
Parts which are normally replaced at
Removal of all heat discoloration
each overhaul shall be given a cur-
from insulating compound on plenum
sory inspection, since damage to
assembly combustor cap and thermo-
these parts may reflect malfunction
of other components in the unit.
couple cover assembly is not re-
This possibility shall be considered
quired during cleaning.
when any part has been damaged.
(9) Special Cleaning of Insulated
Components. Clean thermocouple cap as-
Use corrosion-control procedures on
sembly, combustor cap, and plenum assem-
all steel parts after inspection un-
less the part is to be repaired im-
bly as follows:
compound coating using a mild detergent
(1) Instruments. All microm-
and distilled or de-oxized water.
eters, gages, indicators and other mea-
suring instruments or test equipment
shall be checked periodically and cali-
brated accurately in accordance with
Compressed air shall be regulated
Specification MIL-STD-120 or with ap-
plicable manufacturers' recommendations.
between 5 and 15 psig.
(2) Inspection Records. Good
(b) Dry using a clean lint-free
cloth or filtered, low pressure com-
of complete and accurate inspection rec-
Such records not only expedite
b. General Inspection Instruc-
repair of the equipment, but ensure a
complete and thorough overhaul. Inspec-
limits are given for individual ser-
tion records shall be based upon the re-
quirements outlined in this section.
viceable parts. Replace parts which do
Parts requiring rework or replacement
not meet these requirements.
do not reject a part not complying with
shall be so tagged and a notation of the
a requirement until it has been deter-
disposition of these parts shall be en-
mined that such parts cannot be repaired
tered on the inspection records.