TM 9-1290-357-15
c. Any special cleaning instructions required
3-8. Recording Repairs
for the specific mechanisms or parts are contained
Repairs accomplished will be in accordance
in the pertinent section.
with procedures and standards prescribed in this
(1) Metal parts. Use dry-cleaning solvent
manual. Deficiencies discovered before, during,
and a clean soft cotton cloth in accordance with
and after operation that cannot be corrected by
instructions in TM 9247.
the operator will be entered on DA Form 2404.
Deficiencies immediately corrected by the operator
are not recorded, except when such corrections
are made by replacing parts which constitute
or Crew(s)
repairs above operational level. Such repairs
a. Purpose. To assure maximum operational
will be recorded as organizational maintenance.
readiness, it is necessary that the equipment be
systematically inspected at intervals each day it
39. General Procedures for All Services
is operated. Any deficiencies discovered that can-
and Inspections
not be corrected by the operator, or corrected
by replacing parts, will oe reported on DA Form
a. The following general procedures apply to
2404.
o p e r a t o r s (assisting the organizational me-
chanic) on preventive maintenance services and
b. Daily Preventive Maintenance. Each piece
all inspections.
of equipment will be inspected each day it is
b. Inspection to see if all items are in good
operated. This service is divided into three parts
condition, correctly assembled or stowed, secure,
as indicated in (1) through (3) below.
not excessively worn, not leaking and adequntely
(1) Before operation service. This is a brief
lubricated apply to most items in the preventive
service to ascertain that the equipment is ready
maintenance and inspection procedures. Any or
for operation; it is mainly a check to see if con-
all of the checks that are pertinent to the aiming
ditions affecting the equipment's readiness have
circle M1 with equipment (including supporting,
changed since the last after-operation service.
attaching or connecting members) will be per-
(2) During-operation service. This service
formed automatically, as general procedures, in
consists of detecting unsatisfactory performance.
addition to any specific procedures given.
(3) After-operation service. This is a basic
(1) Inspection for "good condition" is us-
daily service for the equipment. It consists of cor-
ually an external visual inspection to determine
recting, in so far as possible, any operating de-
whether the unit is damaged beyond safe or serv-
ficiencies. Thus, aiming circle M1 is prepared to
iceable limits. Good condition is explained fur-
operate upon a moment's notice.
ther as meaning: Not bent or twisted, not chafed
or burred, not broken or cracked, not bare or
c. Care in Handling Fire Control Equipment.
frayed, not dented or collapsed, not torn or cut,
(1) Exercise care when handling instru-
not deteriorated.
ment. Do not knock against or drop on a hard
(2) Inspection of unit to see that it is "cor-
surface which may cause inaccuracy, damage,
rectly assembled" or stowed is usually a visual
or improper functioning of equipment.
inspection to see if the unit is in its normal
(2) Unnecessary turning of screws or other
position in the equipment and if all parts are
parts not incident to the instrument is forbidden.
present and in their correct relative position.
(3) Stops are provided on instruments to
(3) Inspection of a unit to determine if it
limit the travel of moving parts. Do not attempt
is "Secure" is usually an external visual examina-
to force the rotation of any knob beyond the
tion or a check by hand for looseness. Such
stop limit.
inspection must include any brackets, lockwash-
ers, locknuts or pins.
(4) Keep instrument as clean and dry as
possible, especially before storing or placing in
(4) "Excessively worn" means a unit worn
its carrying case.
beyond serviceable limits, or to a point likely to
result in failure if the unit is not replaced before
(5) When not in use, lock the needle, keep
the next scheduled inspection. Excessive wear of
instrument covered and in its carrying case to
mating parts or linkage connection is usually
protect it from dust, moisture, and any other
evidenced by too much backlash or lost motion.
foreign matter.
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