Section III. TROUBLESHOOTING
25. Scope
II.
T r o u b l e s h o o t i n.g
Troubleshooting is a systematic isola-
Corrective
Probable
cause
Malfunction
action
tion of defective components by means of
Front
or
rear
Sights
and
mirror
symptoms, test for determining the defec-
Obtain
sights
are
bent
are
out
of
new
tive component, plus remedies. The test
com-
alinement
and remedies provided in this section are
pass
governed by the scope of the organizational
Pin
teeth
of
the
Azimuth
scale
ad-
Obtain
level of maintenance.
adjuster
are
juster
does
not
new
com-
broken
or
bent
rotate
pass
26. Procedure
Broken
jewel,
Obtain
Sluggish
needle
bent
or
broken
movement
new
The
troubleshooting
procedure
described
needle
pivot
com-
in table II is one of determining, upon oc-
pass
Obtain
Lifting
lever
is
Needle
lifting
currence
of
malfunctions
noted,
the
prob-
new
bent
or
broken
lever
fails
to
able
cause,
then
taking
the
necessary
com-
lock
pass
corrective action, which includes notifying
Obtain
Broken
or
cracked
Level
vials
do
maintenance
personnel
if
the
tests
and
new
vials
not
function
remedies are beyond the scope of the using
com-
pass
organization.
Section IV. REPAIR OF COMPASS M2 AND CARRYING CASE M19
27. General
for compass M2, it should be
replaced
Repair of compass M2 and/or
carrying
as authorized in appendix III.
case M19 is not authorized.
28. Maintenance
a. W h e n c o m p a s s e s b e c o m e u n s e r v i c e -
Final inspection of compass M2 and
able, obtain a replacement on a direct
carrying case M19 will consist primarily
exchange basis from the supporting main-
of a visual inspection of the materiel by
tenance unit.
organizational,
field,
or
depot
maintenance
b. R e t u r n a l l u n s e r v i c e a b l e c o m p a s s e s
personnel.
through supply channels to Commanding
a. Good Condition. When it has been
Officer, Frankford Arsenal, ATTN:
determined that the materiel is in good
SMUFA-3300, Philadelphia, Pennsylvania,
condition (par. 8) it shall be stowed or
19137 for maintenance engineering
placed in storage.
evaluation.
b. Excessively Worn. When it has been
c. I f
carrying
case
M19
becomes
worn,
determined that the materiel is excessively
damaged. or destroyed in such a manner
worn (par. 12) it shall be replaced in ac-
as to render it an inadequate protection
cordance with appendix III.
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