TM 55-1945-205-10-4 0099 00 50 0099 00 18 Monthly 1.0 Flexors 1. Inspect uninstalled flexors for separation of the polyurethane material in the center. If found, contact unit maintenance. Separation of the polyurethane material in the center of the flexor is found. 2. Inspect uninstalled flexors for cracks in the external welds on the ends. If found, contact unit maintenance. Cracks are discovered in the external weldments on the ends of the flexor. 20 Monthly .5 Lifting Slings Check lifting slings for cuts, loose stitching and fraying. If cuts, fraying or loose stitching is found, contact unit maintenance. 21 Monthly 5.0 Module Interlock Connector (Male Locking Pin) 1. Check male connector pin for deformation, twisting, bending and flatness. If any deformation of the pin is present, remove pin from service. Contact unit maintenance. Any deformation of the pin is present. 2. Check contact area where the pins seat against the guillotine bars for wear. If excessive wear is present, remove pin from service. Contact unit maintenance. Excessive wear is present. Table 1.  Preventive Maintenance Checks and Services. (Continued) ITEM NO. INTERVAL MAN- HOURS ITEM TO BE CHECKED OR SERVICED PROCEDURE EQUIPMENT NOT READY/ AVAILABLE IF: POLYURETHANE SECTION METAL END METAL END