SCRAPER SYSTEMS Hog Slat Inc. Newton Grove, NC USA February 2022 6 Since cable cannot be spliced and run through the power unit, replacement is costly. It pays to treat them carefully. Here are some precautions: A. Don’t overly stress cable by trying to pull large loads. The cable has enough strength to pull most any load the unit will develop, but overly stressing will cause other parts to deteriorate or fail. (As mentioned before, this situation is not covered under warranty. B. On installations where cables go through a passage under the floor or behind a wall, be sure cable does not drag over sharp edges. Use PVC pipe or any other smooth object to go through passages or walls for cable routing. Testing Turn on the unit to see if it will pull the scraper under a no-load condition. If it will not, you must determine how much slack you have and perhaps shorten the cable at the scraper blade connection. If you do not need more tension to get the scraper to operate, adjust the adjustment on the power unit bracket or corner wheels at this time. Tighten only enough to make the scraper move in both directions. After the unit has run a few days, it may be necessary to adjust cable tension again, but only take up enough slack to keep the pulley from slipping. Too much tension can damage the cable and equipment. If you have the adjustment fully taken up, you will need to loosen up and re-tighten the cable at the scraper. Then tighten the tension again. Only tighten it enough to get it to pull the load of manure with the frequency you have chosen for your cleaning schedule. The cable should be tight enough to pull a normal load. Maintenance Periodically (8 weeks or between pig transition): Check all bolts on the power unit, including the floor mounting bolts. Check all cable clamps. Check cable tension. Clean and inspect scraper blades for excessive wear and damage. Check gearbox oil level. Use SAE 90 gear oil.
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