TM 6-6675-319-14
Table 7-1. OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES - Cont
IN-
TER-
VAL
B
B
B -Before
W - weekly
AN -Annually
(Number) - Hundreds of Hours
D - During
M - Monthly
S - Semiannually
A - After
Q - Quarterly
BI - Biennially
ITEM
NO.
2
3
ITEM TO BE INSPECTED
PROCEDURE
PHOTOGRAMMETRIC RECTIFIER - Cont
Inspect and Service - Cont
2 . Hold surveyors rod level against each of
two front columns.
3. Take level reading at each column.
4 . I f n o t l e v e l , r e f e r t o p a r a g r a p h 7 - 6 . 1 f o r
leveling procedures.
Inspect and Service.
1.
2 .
3.
T u r n o f f c i r c u i t b r e a k e r.
Unplug power cord.
Check ground connections to be sure that
t h e y a r e t i g h t.
For Reediness
Reporting
Equipment Is
Not Ready/
Available If:
Ground
connections
loose or
or missing.
7-45