TM 5-3610-252-14
Table 4-1. OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES
If the equipment
only those items
operation.
Make
be shut down.
NOTE
must be kept in continuous operation, check and service
that can safely be checked and serviced without disturbing
the complete checks and services when the equipment can
B - Before
w
D - During
M
A - After
Q
ITEM
NO.
1
w
- Weekly
AN . Annually
(Numbed - Hundreds of Hours
- Monthly
S
- Semiannually
- Quarterly
BI
- Biennially
ITEM TO BE INSPECTED
PROCEDURE
MASON-TYPE PSYCHROMETER
Inspect.
1.
2.
3.
4.
Inspect thermometers for damage.
Check that wick is clean and com-
pletely saturated with distilled water.
Check that cistern is filled with distilled
water.
CAUTION
Mounting psychrometer near heat sources,
fans, or air-conditioning supply and ex-
haust vents will cause psychrometer to
indicate incorrect air temperatures.
Mount psychrometer on wall.
For Reediness
Reporting,
Equipment Is
Not Reedy/
Available If:
4-4
