ITEM 49 50 51 2-45 PREVENTIVE  MAINTENANCE  CHECKS  AND  SERVICES Q-QUARTERLY S-SEMIANNUALLY A-ANNUALLY B-BIENNIALLY H-HOURS MI-MILES Q INTERVAL Change 4 l l l ITEM TO BE INSPECTED Conveyor  (cont.) Projectile   Racks Canister  Racks and  Fuze Containers Electrical   System Wring  Harnesses and  Cables PROCEDURE I J K A B c D A B c D A B C Inspect for worn or damaged wear strips. Inspect conveyor chain pads. Replace as necessary (TM 9-2350-267-10). Repair  or  replace  defective  components  as  necessary  (p  12-1  thru  12-28). Inspect projectile rack for cracks, bends, twists and other damage. Inspect locking mechanisms for damage and wear. Make sure locking mechanisms securely  hold  projectile  in  rack. Tighten loose screws. Replace missing screws, washers and nuts. Repair or replace defective components (p 11-1 thru 11-11). Inspect for cracks, bends, wear and other damage. Tighten loose screws. Replace missing screws, washers and nuts. Inspect  restraint  straps  and  restraint  bars. Repair or replace defective components (p 11-12 thru 11-23). Inspect harnesses and cables for damaged insulation and deterioration (Chapter 6). Tighten loose electrical connection mounting brackets and clamps. Check for broken or damaged terminals and replace or repair as necessary. Ref. (p 2-50 thru 2-60). Replace  missing  chassis  grommets. TM  9-2350-267-20