Hog Slat Inc. Newton Grove, NC USA February 2022 REV A11 20 Ventilation Systems MAINTENANCE AND REPAIR Always turn off machine and lock-out power before beginning any maintenance or repair. Inspect machine monthly and all other external components such as cable, pulleys, clamps etc.. Inspect and clean drive screw for any foreign debris lodged in the threads. Lubricate drive screw monthly using Lithium NLGI GRADE 2 grease along length of screw (Figure 24) Inspect and lubricate thrust bearing every three (3) months with Lithium NLGI GRADE 2 grease. Inspect lock collars, upper flange bearing and motor/drive screw jaw coupling set screws to ensure they are tight. Using local “manual” controls, run machine in both directions to ensure limit switch function and cabling operation. Figure 24 Apply grease along length of ACME Drive Screw – Grease Monthly Grease Monthly Grease fitting for thrust bearing – Grease Every 3 Months Apply grease along path of load block inside cabinet walls – Grease Every 6 Months Grease Monthly
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