TM 5-3610-252-14
Table 4-1. OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES - Cont
B - Before
W - Weakly
AN - Annually
(Number) - Hundreds of Hours
D . During
M - Monthly
s
- Semiannually
A . After
Q - Quarterly
BI
- Biennially
ITEM
NO.
2
IN-
TER.
VAL
AN
ITEM TO BE INSPECTED
PROCEDURE
MASON-TYPE PSYCHROMETER - Cont
Replace Wick.
1.
Remove psychrometer from wall.
2.
Remove wick from WET bulb thermometer and cistern.
3.
Install new wick over WET bulb thermometer.
4.
Fill cistern with clean, distilled water.
5.
Insert other end of wick into cistern.
6. Saturate wick with distilled water.
7. Mount psychrometer on wall.
For Readiness
Reporting,
Equipment Is
Not Ready/
Available If:
4-5
