1. Inspect Drive Chain slack and gears/sprockets for wear, if equipped. 2. Check set screws and fasteners for tightness. 3. Check for damaged, loose, and missing endlocks. 4. Check guides for damage and secure attachment to the structure. 5. Inspect guide stops for damage, proper alignment, and secure attachment. 6. Examine curtain to shaft attachment. 7. Inspect end brackets for secure attachment. Check inside of end brackets for curtain rubbing. Adjust curtain and lubricate wear points. 8. Test operation of the door for proper spring balance (on motor operated doors use emergency hand chain operator to test balance). When the door has proper balance, the curtain should have lift at the stops in the open position and not drift down. At the floor, the curtain should be balanced or lift up slightly. The door should not be difficult to raise through the middle of travel. 9. Lubricate roller bearings which have grease fittings. Bearings are located at the operator end bracket and at adjuster end of pipe shaft. Operate door while closely watching curtain movement, correct any deficiencies which may cause the door to catch or snag. 11. Inspect, align and lubricate the chains, stub shafts and gears of manual chain hoists or crank operators. Tighten all set screws and check roller chain tension (adjust as necessary). 12. Inspect hand operating chain, crank eye, and removable crank for damage or wear. 13. Inspect spring adjuster wheel and keeper for damage and secure installation. 14. Check hood for secure attachment and correct any deficiencies. 15. Check operation of locks or slide bolts. Tighten cylinder locking set screws and lubricate the lock mechanism. 16. Check Safety Edge or Beam Detector for proper operation (if equipped). 17. Check bearings, shaft and tension spring for wear and lubricate as recommended by manufacturer. 18. Check all door slats for damage. 19. Ensure warning/safety decals are serviceable.
