4-7 Chlorination system. This paragraph describes repair of the chlorination system involving repair parts listed
in TM 551930209-14&P-18.
Shut down chlorination system before attempting any repairs. Be sure to
open (OFF) circuit breakers 9PS and 10P5. Redtag circuit breakers 9P5 and
1OP5 on power panel 1 with: "WARNING - DO NOT ACTIVATE. REPAIRS
CU valve numbers are shown on Figures 1-2,1-3, and 1--.
4-7.1 Repair or replacement of system components
Cleaning and inspection
Clean exterior of chlorination unit with brush and hot soapy water. Dry with clean cloth.
Visually check for evidence of damage or corrosion. Repair damage. Remove corrosion and touch up paint
in accordance with TB 43-0144. Inspect electrical cables for chafing, burned insulation, or loose connections. Replace
damaged cables or tighten loose connections. Check hoses for damage. Replace damaged hoses. Check mounting
hardware hangers, and clamps for tightness. Tighten as necessary.
Repair. Repair of individual components is given in the following paragraphs:
Brine pump assembly
Chlorination pump assembly
Chlorination unit brine pump assembly
Cleaning and Inspection
Clean exterior of pump with brush and hot soapy water or with an approved solvent. Rinse and
thoroughly dry with filtered compressed air.
Visually check pump for evidence of cracks, corrosion, or damage. Remove corrosion.
Clean motor exterior using filtered compressed air or vacuum. Wipe off using rag moistened with an
approved solvent. Clean terminals and wipe wires with lint-free cloth or electrician's brush.
Visually inspect for burned, bent, loose, corroded, or otherwise damaged terminals. Inspect wiring for
breaks, loose connections, or other obvious damage. Tighten loose connections, replace damaged
terminals and replace damaged wiring. Touch up paint according to TB 43-0144.
Removal. Remove brine pump assembly from mounting according to the following procedures:
Make sure chlorination unit control cabinet Is electrically dead before starting removal.