TM 5-6675-329-13 & P
Table 4-1. Instrument Leveling and Checks (Cont)
Sight instrument using open sight (Figure 1-2,
item 5) and turning instrument by hand until it
is pointed at leveling staff. Turn focusing
knob (9) to achieve normal indication.
Section IV: PREVENTIVE MAINTENANCE
PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
Table 4-2 presents recommended checks and services arranged in a logical sequence. These service items
should be performed at the indicated time interval. When the instrument is not used daily, it is not necessary to perform
the daily scheduled procedures. Instead, perform daily scheduled procedures before each use of the instrument.
Table 4-2. Organizational Preventive Maintenance
Checks and Services
D - Daily
W - Weekly
M - Monthly
ITEM TO BE
NO. D W M
Perform operator preventive maintenance checks
Equipment does not
and services (Table 2-2).
pass all indicated
(Proceed to items
2 through 8 follow-
Check Tripod Assy GST-40 leg(s) movement
Tripod shifts of
for sufficient tightness to keep tripod stable
its own accord.
after it has been set up.