Maintenance of Grill Gates shall include cleaning (removing dirt, grime, grit, and oil) the grill with environmentally acceptable products, lubrication of moving parts, links and track, lubricate the chain with approved lubricant, lubricate the operator housing bearing, lubricate manual operation shaft, lubricate the limit switch shaft, check safety devices (eyes/bumper/loops), checking components for wear, check limit switch and realign as necessary, advising the Contract Administrator (CA) of options to keep gate motors and parts functioning, correcting electrical irregularities and problems, and assure that controls are operating properly. Manually disable and enable grill gates timer at the operator to test grill gates for proper operations.