Table 3-1. Operator Preventive Maintenance Checks and Services
NOTE:
Within designated interval, these checks are to be performed
B - Before
Item
No.
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
D - During
A - After
W - Weekly
Item to be
Inspected
OTHER REAGENTS
AND LAB-WARE
IN WQAS - ENG.
(fig. 1-6, Loading
Diagram)
Limestone, Powder-
ed
Orthotolidine Solu-
tion
Ferric Chloride,
Solution
Arsenite Solution
Halazone Tablets
(6)
Plastic Bags
pH Wide Range
Indicator Solution
Pipet Dropper
Flask, Filtering,
500 ml
Funnel, 70 ml
Beaker, 250 ml
CONDUCTIVITY
METER: TOTAL
DISSOLVED
SOLIDS DETER-
MINATION (fig.
2-17)
Conductivity
Meter
Range Extender
Comparator Ay,
Hydrogen Ion
and Residual
Chlorine
DPD Tablets
Procedures
Check for and have repaired
or adjusted as necessary
Visual Inspection of:
1 - Cases, fittings & inserts
for function. Patch or re-
place.
2 - Lab-ware. Broken units
are to be replaced.
3 - Shelf life. If expired, re-
tain as identification only,
replace.
4 - Containers for leakage
and function. Clean up.
Tighten caps. Replace.
Visual Inspection for:
1 - Cleanliness.
2 - Case Intact.
3 - Live battery.
4 - Moisture tight storage.
5 - Remove battery and store
separately when not in daily
use.
Visual Inspection for:
1 - Cleanliness
2 - Case Intact
3 - Components are
Present
1.
Visual Inspection
to see that
container is not
damaged.
TM 5-6630-215-12
- Continued
in the order listed.
M - Monthly
For Readiness Reporting
Equipment is Not Ready
Available If
1 - Less than the quantity
of any type of reagent list-
ed in Appendix C, required
to perform function; or,
not of effective shelf life.
2 - Leakage of any contain-
er is evident (until cleaned
up and replaced).
3 - Lab-ware is broken or
missing to an extent that
accurate measurements
cannot be made.
4 - Environmental exposure
has been such that contain-
ers or contents are unreli-
able.
1 - Meter is not intact.
2 - Batteries not sealed or
expended.
3 - Meter not capable of
being zeroed.
1.
Components
are missing
2.
Chemicals have
been consumed
1.
DPD Tablets have
been consumed
3-11
