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necessary <br />Check and tune detector amplifiers <br />8. Pull Boxes <br />Check Pull box and lid condition and replace /repair as needed <br />Check condition of splices and make repairs as needed <br />Clear any debris from pull boxes <br />9. Controller Cabinet <br />Measure voltage level at service entrance in cabinet and record <br />Vacuum and clean controller cabinet and contents <br />10. Battery Backup Systems <br />Test battery backup system <br />Test battery charge and replace as needed <br />Measurc voltage level at service entrance in cabinet and record <br />Vacuum and clean controller cabinet and contents <br />In addition to the quarterly and monthly maintenance reports, the Contractor shall conduct Semi <br />Annual Preventative Maintenance and submit a report that shall include all of the following <br />elements. Semi annual maintenance shall take place in the months October and April: <br />11. Controller Cabinet <br />Check wire schematics and records to make sure they are in the cabinet. Notify City <br />Traffic Engineering Division if they arc not present <br />Inspect terminal blocks and tighten as ncedcd <br />Lubricate hinges and lock <br />12. Signal Heads <br />Clean and polish all signal lenses and reflectors (including video detection and CCTV <br />cameras, and emergency preemption detection lenses), align signal heads and adjust all <br />mast arm mounted street name signs <br />Clean and polish all lenses and reflectors <br />13. Emergency Vehicle Prc- Emption <br />Actuate preempt to check operation with Emergency Vehicle Pre- emption Emitter and <br />make repairs as needed. <br />Visually inspect cables, antenna, and other hardware <br />14. Miscellaneous <br />Adjust all mast arm mounted street name signs as needed <br />Check condition of paint (frameworks, heads, cabinet, poles, and other appurtenances) and <br />make recommendation for repainting as needed. <br />Traffic Signal Maintenance Contract <br />Attachment 4 Preventative Maintenance Schedule <br />Contract No. <br />Page 3 <br />