TM 51930-209-14&P-4
4-7.1.3.2 Repair
a.
Removal. Remove circulation pump assembly from mounting according to the following procedures:
WARNING
Make sure chlorination unit control cabinet Is electrically dead before starting removal.
(1)
Make sure power panel 1 circuit breaker 9P5 is open (OFF). Redtag circuit breaker with 'WARNING -
DO NOT ACTIVATE. REPAIRS BEING MADE."
(2)
Turn chlorination unit control cabinet function switch OFF.
(3)
Close chlorination system valves CU2 and CU9. Position valves CU4 and CU3 to C (close).
(4)
Tag and disconnect electrical wiring to motor.
(5)
Place container under piping and disconnect piping from pump.
(6)
Remove mounting bolts and remove pump assembly.
b.
Disassembly and repair of circulation pump. Disassembly and repair circulating pump page 17 in Biocidal
System Recycle/Accumulating and Operating Instructions Manual in Appendix B. Use repairparts listed in
TM 55-193-209-14&P-18. Retouch or paint in accordance with TB 43-0144.
c.
Test and repair of motor. Repair motor by tightening loose connections, replacing damaged terminals, or
replacing damaged wiring. Test motors for continuity. Check rpm.
d.
Reinstallation of pump assembly.
(1)
Reinstall pump assembly and tighten mounting bolts.
(2)
Connect piping to pump.
(3)
Connect electrical wiring to motor as tagged.
(4)
Energize chlorination unit control cabinet by closing power panel 1 circuit breaker 9P5. Remove red
tag.
(5)
Open chlorination valves CU2 and CU9.
(6)
Open chlorination valve CU4.
(7)
Energize pump motor by turning function switch on chlorination unit control cabinet (Figure 3-4) to
AUTO. Verify that pump operates normally.
(8)
Record completion of this repair in maintenance logbook.
4-7.1.3.3 Replacement
a.
Removal. Remove circulation pump assembly as indicated in step a in paragraph 47.1.3.2.
b.
Installation. Install circulation pump assembly as indicated in step d in paragraph 4-7.1.3.2.
4-7.1.4 Chlorination unit control cabinet
WARNING
Make sure chlorination unit control cabinet Is electrically dead before
starting repair or removal. Redtag power panel 1 circuit breaker 9P5 with:
"WARNING - DO NOT ACTIVATE. REPAIRS BEING MADE."
4-7.1.4.1 Cleaning and Inspection
a.
Make sure chlorination unit control cabinet is electrically dead by opening (OFF) power panel 1 circuit
breaker 9P5. Redtag circuit breaker with: 'WARNING - DO NOT ACTIVATE. REPAIRS BEING MADE."
b.
Wipe clean exterior of control cabinet with clean rag. Open control cabinet door and vacuum clean or clean
inside with electrician's brush. Avoid using solvents for cleaning inside of control cabinet. Solvents leave a
greasy film on components that may reduce electrical continuity.
4-7
