TM 9-6650-222-35
CHAPTER 3
INSPECTION
Section I. GENERAL
nature of unserviceability, (3) to determine
3-1. Scope
the work, repair parts, and supplies required
This chapter sets forth inspection of peri-
scope XM48 in the using position and in
to return the materiel to serviceability, (4) to
maintenance shops.
ensure that work in process is being perform-
ed properly, and (5) to ensure that completed
3-2. Purpose
work complies fully with serviceability stan-
Inspection is performed primarily, (1) to
determine completeness, (2) to determine the
dards.
Section II.
INSPECTION IN THE USING POSITION
b. Check the exterior of the periscope for
3-3. General
dented surfaces, bent, broken or missing
In general, the periscope will be considered
catches or other parts, moisture or corrosion,
serviceable if it is complete and all deficien-
and other evidence of damage or misuse which
cies have been corrected ensuring operation in
might indicate a need for repair.
accordance with serviceability standards.
c. Inspect the sealed areas around housing
10513565, lens 6650-904-4570, prism 1240-
3-4. Using Position
907-6.512, plug 8620049, metal junctions, and
Inspection in the using position refers to
all visible external screws.
the inspection performed by maintenance per-
sonnel when the periscope is mounted on the
for legibility.
XM551 vehicle, Inspection of periscope re-
e. Inspect for bare spots or damaged finish
moved from the end item is set forth in para-
which expose metal surfaces and lead to cor-
graphs 3-9 through 3-12.
rosion.
f. Inspect the two catches on the body assem-
3-5. Modification Work Orders (MWO)
bly to make sure they operate smoothly with-
All applicable modification work orders
out binding or rough motion, and that they
will be applied. DA Pamphlet 310-4 contains
properly engage the head assembly.
the MWO index and equipment records DA
g. Check the valve assembly to ensure that
Form 2408-5 or DA Form 2409 list MWO's
the valve cap is on and tight and that the
applied.
stem is not bent.
h. Make sure the equipment is free from
3-6. General Inspection
dirt and grit.
a. Note the general appearance of the peri-
i. Refer to the Basic Issue Items List in
scope to determine the type of treatment it
TM 9-2350-230-12 and check for completeness
has received.
of repair parts, tools, and equipment.
3-1
