Schedule C- Maintenance Checklist.pdf

TASK 3 6 12 A B C D

Lubricate hinges and locks X X X Vacuum cabinet X X X Replace filters X X X Check weatherproof seals (gaskets) X X X Check anchor bolts X X X Check for water accumulation and check duct sealant X X X Check ground rod clamp and wire X X X Check wiring schematics and records X X X Check operation of fan and heater X X X Check radio interference filter and lightning arrestor X X X Check circuit breaker and fuses X X X Check ground fault receptacle X X X Measure voltages at service inputs in cabinet As required X X Check and record current being drawn As required X X Remove any snow or brush As required X X X

Clean lenses, signs, reflectors X X X X Replace lamps (incandescents) X X X X X Check gasket for water infiltration and deterioration X X X Check alignment X X X Check for wear on the span wire, signal wire, and mechanical hardware (clevis pins, clamps) X X X Check mast arms, free-swinging signals; check clevis and chain X X X Check for cracks or rust in the hardware X X X Check hoods, wing nuts, and hinges X X X Replace substandard hardware As required X X Replace defective lenses and reflectors or lamps As required X X Check locking rings (surface); install proper locking devices as required X X X Check condition of back plates (if used) X X X

Check alignment of mast arms X X X Inspect poles, transformer bases and arms for damage caused by impact with vehicles X X X Inspect for rust; spot paint as required X X X Inspect joints for rust and cracks at arm/upright location and at base plate X X X Inspect anchor bolts for rust and tightness X X X

Inspect for rust X X X Inspect joints for rust, grout, and tightness X X X Inspect condition of span and tether wires X X X

CABINETS

Appendix A: Preventive Maintenance Checklist Minimum Recommended Interval*

Months Years 2-5

Min. Level of Maintenance Required

SIGNAL HEADS

MAST ARMS AND POLES

SPAN WIRE AND POLES

Appendix A, Page 1

CABINETS

Appendix A: Preventive Maintenance Checklist Minimum Recommended Interval*

Months Years 2-5

Min. Level of Maintenance Required

Verify span and tether wire vertical clearance at low spot of sag X X X Check clamps and hardware X X X Check guy wire, anchors, and guards, wood poles X X X

Check push buttons on each end of actuated crosswalks and visually verify pedestrian signal operation; verify timing X X X Check push button indicator lamp (if one exists) for operation X X X Check push button signs; clean or replace if necessary X X X Check push button sign alignment X X X

Visually inspect roadway along loop detector saw cut for exposed wires, cracks, potholes, rutting, etc. X X X Check alignment for sonic, magnetic, video, and radar-type detectors; verify call inputs to controller phases X X X

Verify special functions, e.g., delay, extension X X X Refocusing, realigning, and/or lense cleaning of video detection cameras and resetting detector zones as needed. Upgrading video detection system firmwars as needed. X X X

Check whether the detector is detecting vehicles within its design zone of detection X X X

Tune the detector if necessary X X X Check whether the connectors are tight and secure X X X

Check integrity of the splices X X X Check the ground rod, clamp connection, and bonding of conduits X X X Check the insulation X X X Check for abnormal amounts of water X X X Check lid for abnormal condition and fit X X X

Check whether the time settings match the current timing permit X X X Check whether indicator lamps on the modules are working; replace failed lamps X X X Check for extension by detector actuation X X X Check whether modules fit tightly and securely into the frame X X X Check whether connectors are tight and secure X X X Wipe dust off controller, detectors, and auxiliary equipments X X X

Sensors

Amplifiers

JUNCTION BOXES AND HANDHOLES

SOLID STATE, ANALOG, AND MICRO PROCESSOR-BASED CONTROL EQUIPMENT

DETECTORS

PUSH BUTTONS

General

Appendix A, Page 2

CABINETS

Appendix A: Preventive Maintenance Checklist Minimum Recommended Interval*

Months Years 2-5

Min. Level of Maintenance Required

Replace with bench-tested unit and take to repair shop for testing X X X

Check load switch packs X X X

Check mercury relays (if used) for excessive splash X X X

Check whether firm in socket; check on/off ratio and flash rate X X X

Verify operation of each switch position X X X Check for loose wires X X X

Check for discoloration and tightness X X X

Verify communication is in tact within the system X X X

Check whether controller operates in the mode selected by the supervisory master (i.e., time-based coordinator) and verify TBC of local matches TBC in master X X X Disconnect from the master supervisory system and check for “free” or backup operations X X X Check any special equipment per manufacturer’s recommendation X X X

Record all changes in timing, wiring, or any function As required X X Record current flow at un-metered installations As required X X

* or earlier if required

MISCELLANEOUS

Flashers

Switches

Terminal Connections

INTERCONECTED EQUIPMENT

Conflict Monitors

Load Switches

Relays

Appendix A, Page 3