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Page Title: Section IV. DAILY LOG FOR M43 DETECTOR UNIT AND PUMP ASSEMBLY
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TM 3-6665-225-12
Table 2-1. Air Filter Replacement Interval
Section IV. DAILY LOG FOR M43 DETECTOR UNIT AND PUMP ASSEMBLY
2-19. M43 Detector Unit
hours since last tubing replacement (from DA Form
2408-1 accompanying pump), subtract these hours
A modified DA Form 2408-1 (fig. 2-9), Equip-
from 1440, and add result to total M43 hours
ment Daily or Monthly Log, is used to record daily
logged. Enter this number in 3b. Example: Total
and accumulated operating hours for the M43 de-
M43 detector hours on log are 1437. Pump assembly
tector unit (fig. 1-2). It also provides a means of de-
to be installed has been operated 400 hours.
termining when a pump assembly (7, fig. 1-3) must
1440 - 400 = 1040 hrs.
be removed and sent to direct support for scheduled
1437 + 1040 = 2477 hrs (enter in 3b).
maintenance (tubing  replacement  every 1440
(c) When changing a pump assembly in a
hours).
used M43 detector unit and the pump assembly is
a. Modification of DA Form 2408-1.
new, add 1440 hours to the total M43 hours logged
(1) Block 2. Line out "REGISTRATION OR."
and enter result in 3b. Example: Total M43 detector
(2) Block 3. Line out "OR LUBRICATION
hours on log are 1474. Pump assembly is replaced
DUE."
with a new pump.
(3) Block 4, Column b. Line out "READING"
1474 + 1440 = 2914 hrs (enter in 3b).
and add "DAILY."
(d) When pump assembly operating hours
(4) Block 4, Column c. Line out "READING
since last tubing replacement are not known, send
MILES" and add "TOTAL HOURS."
pump to direct support for tubing replacement.
(5) Block 4, Column i. Enter "PUMP ASSEM-
(5) Block 3c. Not applicable.
BLY" in first column.
(6) Block 4. Enter a check in the daily block.
b. Use of Modified DA Form 2408-1.
(7) Block 4, column a. Enter date M43 is/was
(1) Block 1. Enter "DETECTOR UNIT, CHEM-
operating.
ICAL AGENT AUTOMATIC ALARM: PORTA-
(8) Block 4, Column b. Enter daily operating
BLE, M43."
hours.
(2) Block 2. Enter serial number of the M43
(9) Block 4, Column c. Enter cumulative hours
detector unit.
operated.
(3) Block 3a. Not applicable.
(10) Block 4, columns d and e. Not applicable.
(4) Block 3b. Enter the hours when the next
(11) Block 4, Column f. Enter a check in the
pump assembly replacement is due. The hours are
"IS EQUIPMENT OPERATIONAL" column if the
determined in the following manner:
equipment is operational. If equipment is not oper-
(a) When putting a new M43 detector unit
ational, leave the column blank and enter an "x" in
into service (no prior operating hours on M43 or
the "EQUIPMENT FAULT" column.
pump assembly), enter 1440 hours in 3b.
(12) Block 4, Column g. Signature of individual
(b) When changing a pump assembly in a
making entries in columns a through f.
used M43 detector unit and the pump assembly is
(13) Block 4, Column h. Not applicable.
used, determine the number of pump operating
2-15
Change 2

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