TM 55-1930-209-14&P-5
4-7.2.7. Pressure gauge. Replace pressure gauge as follows:
a.
Removal
(1) Close drinking water valve DW14 on Barge 1 or valves DW14 and DW19 on Barges 2 and 3
(2) Remove pressure gauge
(3) Cover pipe opening to prevent foreign material from entering pipe
b.
Installation Install new pressure gauge in reverse order of removal in step a
4-7.2.8. Storage tanks. Repair storage tank when leak is noted at access plate as follows:
a.
Empty storage tank as given in paragraph 3-6 2
b
Remove 24 screws attaching access plate with synthetic rubber gasket
c.
Remove access plate with gasket
d
Remove gasket from access plate
e
Clean tank and access plate gasket mating surface
f.
Install access plate with new gasket
g.
Secure access plate with 24 screws
h.
Touch up paint in accordance with TB 43-144
i.
Check for leaks when tank is full
4-7.2.9. Reserve tank. Repair reserve tank when leak Is noted at access plate as follows
a.
Empty reserve tank as follows
(1) Close drinking valves DW13 and DW16
(2) Open drain cock valve on reserve tank and empty tank
(3) Close drain cock
b.
Replace synthetic rubber gasket and touch up or paint as given in steps b thru i in paragraph 4-7 2 8
4-7.2.10. Storage tank liquid level indicator. Recalibrate liquid level Indicator as follows
4-7.2.10.1. Test
NOTE
Storage tank liquid level indicator test is to be performed using the equipment discussed in TM 55-1930-20-14&P-11.This
procedure is to be used when sensor readings are on scale and stable but are inaccurate.
a.
Select level 1 editing by entering access combination for level 1 edit as given in paragraph 3-6 2 In TM 55-
1930-209-14&P-11
b.
Select EDIT MENU option 1 to activate sensors as given In paragraph 3-6.2 1 in TM 55-1930-209-14&P-11
c.
Check that the following span reference value as shown on Drawing 23285 In Appendix B and the value for
drinking water tanks shown on the edit page agree
Scale In
Offset
Span
Range
Calibration
120
0
1832
0
6
107
0
1962
0
6
86
0
2255
0
6
d.
Calibrate sensor by calculating new offset using the following equation
Actual Reading - Displayed Reading) x 3840 + Old Offset
Full Scale
4-15
