TM 55-1930-209-14&P-3
Table B-1. Preventive Maintenance Checks and Services for ROWPU System (Continued)
B-Before
D-Daily
Q-Quarterly
D-During
W-Weekly
S-Semiannually
A-After
M-Monthly
A-Annually
ITEM
PROCEDURES
INTERVAL
TO BE
CHECK FOR AND HAVE
EQUIPMENT
ITEM
INSPECTED
REPAIRED OR ADJUSTED
IS NOT READY/
NO.
AS NECESSARY
AVAILABLE IF:
B D
A D W M Q
S
A
13) Open vent on top of RO block to allow
air to escape.
14) Start seawater pump 1 for ROWPU 1
or pump 2 for ROWPU 2 by setting
OFF/ON/START switch on control
station to ON.
15) Close seawater valve SW9 for
ROWPU 1 or SW10 for ROWPU 2 for
ROWPU to allow water/Hydraldeen
solution to recirculate.
16) Open valves RO13 and RO14 to allow
Hydrakleen to drain out and return to
drum.
17) After water circulates for 15 minutes,
stop seawater pump.
18) Close valves RO13 and RO14.
19) Disconnect used drum of Hydrakleen-
20 and attach a new drum as
described in b.1 through b.9.
20) Open valves RO13 and RO14.
21) Start seawater pump.
22) Read seawater temperature at tem-
perature gauge T1 to determine how
long seawater pump should operate.
Use the following table.
Seawater Pump Operating Time
Temperature
Operating
at T1 (F)
Time
60 or less
2 hrs. 40 min.
65
2 hrs. 20 min.
70
2 hrs.
75
1 hr. 40 min.
80
1 hr. 30 min.
85
1 hr. 30 min.
90 or more
1 hr. 10 min.
B-17
