Check fuse. Replace if necessary.
Visually inspect for indications of burns, corrosion, loose connections, damaged parts, or chipped paint.
Clean corrosion from contacts and terminals, tighten loose connections, and replace damaged parts. Clean
electrical contacts with silver polish, fine sandpaper, or burnishing tool. DO NOT use emery paper or steel
wool. Vacuum to remove residue. Touch up paint according to TB 43-0144. Do not paint threads or labels.
Make sure power panel 1 circuit breaker 10P5 is open (OFF). Redtag circuit breaker with 'WARNING DO
NOT ACTIVATE. REPAIRS BEING MADE."
Turn metering pump motor controller AUTO/OFF/MAN switch to OFF.
Open control cabinet door (Figure 3-6) and remove old fuse.
Install new fuse and close door.
Energize control cabinet by closing power panel 1 circuit breaker 9P5. Remove red tag.
Record fuse replacements in maintenance logbook.
4-220.127.116.11 Indicator lights
Unscrew lens cap on front of control cabinet.
Remove bad bulb and install new bulb.
Clean and replace lens cap.
Make sure control cabinet is electrically dead before starting repair by opening (OFF) circuit breaker 1
P5 on power panel. Redtag circuit breaker with: "WARNING DO NOT ACTIVATE. REPAIRS BEING
Tag and disconnect wiring with connection information.
(3) Remove attaching hardware and remove motor controller.
Install control cabinet using attaching hardware.
Close (ON) circuit breaker 1 P5 on power panel.
Check operationally that motor controller operates normally.
4-7.1.5 Sump pump
4-18.104.22.168 Cleaning and Inspection
Clean exterior of pump with brush and hot soapy water or with an approved solvent. Rinse thoroughly
and dry with filtered compressed air.
Visually check pump for evidence of cracks, corrosion, or damage. Remove corrosion. Touch up
paint according to TB 43-0144.
Clean motor exterior using filtered compressed air or vacuum. Wipe off using rag moistened with an
approved solvent. Clean terminals and wipe wires free 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.