Test and repair of motor. Repair motor by tightening loose connections, replacing damaged terminals, or
replacing damaged wiring. Test motor continuity, check voltage, resistance, rpm, etc., listed on label plate.
Reinstallation of pump assembly.
Install pump assembly and tighten mounting bolts.
Connect piping to pump.
Connect electrical wiring to motor as tagged.
Energize metering pump motor controller by closing power panel 1 circuit breaker 1 OP5. Remove red
Open chlorination valves CU13 and CU14.
Prime repaired metering pump (see page 16, paragraph 3.3, of the M. Roy Controlled Volume Pump
Instruction Manual in Appendix B).
Energize pump motor by turning AUTO/OFF/MAN switch to AUTO and pushing START button on metering
pump motor controller (Figure 3-2). Verify that pump operates normally.
Record completion of this repair in maintenance logbook.
4-7.1.9 Metering pump motor controller
Make sure metering pump motor controller Is electrically dead before starting repair or
removal. Redtag power panel 1 circuit breaker 10P5 with: "WARNING - DO NOT ACTIVATE.
REPAIRS BEING MADE."
4-220.127.116.11 Cleaning and Inspection
Make sure metering pump motor controller is electrically dead by opening (OFF) power panel 1 circuit breaker
10P5. Redtag circuit breaker with: "WARNING - DO NOT ACTIVATE. REPAIRS BEING MADE."
Wipe clean exterior of motor controller with clean rag. Open motor controller door and vacuum clean or clean
inside with electrician's brush. Avoid using solvents for cleaning inside of motor controller. Solvents leave a
greasy film on components that may reduce electrical continuity.
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.
Make sure priming pump motor controller is electrically dead before starting repair by opening (OFF) circuit
breaker 1 OP5 on power panel. Redtag circuit breaker with: 'WARNING DO NOT ACTIVATE. REPAIRS
Tag and disconnect wiring with connection information.
Remove attaching hardware and remove motor controller.
Install motor controller using attaching hardware.
Connect wiring as tagged.
Close (ON) circuit breaker 10P5 on power panel 1.
Check operationally that motor controller operates normally. Troubleshoot if necessary.