lost motion). It includes illegibility
42. General Procedures for all Services
as applied to markings, data and
and Inspections
caution plates, and printed matter.
a. The following general procedures ap-
(5) Where the instruction "tighten" ap-
p l y to first-echelon preventive-mainte-
pears in the procedure, it means
nance services and all inspect ions, and
tighten with a wrench, even if the
are just as important as the specific pro-
item appears to be secure.
cedures.
b. Inspection to see if items are in good
essary" or "replace if necessary"
condition, correctly assembled or stowed,
are not used in the specific proce-
secure, not excessively worn, not leaking,
dures. It is understood that when-
and adequately lubricated apply to most
ever inspection reveals the need af
items in the preventive-maintenance and
adjustments repairs, or replace-
inspection procedures. Any or all of these
ment the necessary action mull be
checks that are pertinent to any item (in-
taken.
cluding supporting, attaching, or connect-
ing members) will be performed automat-
43. Cleaning
ically, as general procedures, in addition
to any specific procedures given.
a. General. Any special cleaning in-
structions required for specific compo-
(1) Inspection for "good condition" is
nents or parts are contained in the
usually an external visual inspec-
pertinent section. General cleaning in-
tion to determine whether the unit
is damaged beyond safe or service-
structions are as outlined in (1) through
(3) below.
able limits. Good condition is ex-
(1) Metal parts.
p l a i n e d further as meaning: not
(a) Use self-emulsifying decreasing
bent, or twisted, n o t chafed or
s o l v e n t c o m p o u n d , mineral
burred, not broken or cracked, not
spirits paint thinner, or dry-
bare or frayed, not dented or col-
c1eaning solvent (Stoddard) to
lapsed, not torn or cut, not deteri-
clean or wash grease or oil from
orated.
all metal parts of the tester.
(2) Inspection of a unit to see that it
(b) Use clean water or a solution of
is correctly assembled or stowed
either 1/4 pound of soap chips or
is usually a visual inspection to see
6 ounces of painted-surface de-
if the unit is in its normal position
tergent to 1 gallon of hot water
in the vehicle, and if all its parts
for all parts and overall general
are present and in their correct
cleaning of painted surfaces.
relative position.
(c) After parts are clean, dry them
(3) Inspection of a unit to determine
thoroughly. Apply a light film of
if it is "secure" is usually an ex-
ternal visua1 examination of a
oil to all parts having a polished
check by hand, wrench, or pry-bar
surface to prevent misting.
for looseness. Such an inspection
(d) Before installing new parts, re-
must include any brackets, lock-
move any rust-preventive com-
washers, locknuts, locking wires,
pound, protective grease, etc.;
or cotter pins as well as any con-
prepare as required (oil seals,
necting tubes, hoses, or wires.
etc.); and for those parts requir-
(4) By "excessively worn" is meant
ing lubrication, apply the lubri-
worn beyond serviceable limits or
cant prescribed in the lubrication
to a point likely to result in failure
chart.
if the unit is not replaced before
(2) Electrical parts. Use trichloro-
the next scheduled inspection. Ex-
ethane for c1eaning electrical
cessive wear of mating parts or
p a r t s . D o not use on material
linkage connection is usually evi-
soluble in trichloroethane.
denced by too much play (lash or
18