TM 5-6675-250-20
2 - 9 . P M C S ( C o n t i n u e d)
Checks and Services (Continued)
I t em
I n t e r v a l
N o .
5
6
7
B
l
l
l
A
l
l
l
Item to be
I n s p e c t e d
T r a n s it
c a s e
G y r o s c o p ic
r e f e r e n c e
u n i t
T h e o d o l i t e
2-2.
Organizational
Preventive
Maintenance
P r o c e d u re
Inspect for inoperable
handles, latches or
loose mounting. Check
to see that GRU and
tripod are properly
positioned and secured
in case. Inspect case
interior for condition
of isolators, bumpers,
seals, latch supports, and
structure. Inspect for inoper-
able relief valve. Replace an
inoperable relief valve.
Inspect tripod for pro-
per operation of clamps
and Ievel adjustment.
Check that leg assem-
blies extend and re-
tract properly and do
not bind. Inspect
electrical receptacle, switch
and indicator for secure
mounting and damage. Replace
damaged or missing knobs or
leg assemblies. Report other
damage or malfunctions to
Direct Support Maintenance.
Inspect for damaged or
burned out lamps.
Replace as necessary.
Report any additional
damage to Direct
M a i n t e n a n c e.
s u p p o rt
E q u i p m e n t i s N ot
R e a d y / A v a i l a b le
If:
Handles or latches are
inoperable.
Relief
valve is defective or
i n t e r i o r c o m p o n e n ts
are damaged or mis-
sing or case is
d a m a g e d.
Tripod does not
operate
properly,
e l e c t r i c al
r e c e p t a c l e s w i t ch
or indicator is
damaged or defec-
tive.
A n y d a m a g e o t h er
than lamp re-
p l a c e m e n t i s
n o t e d.
2-17