TM 9-2350-247-20-1 PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING LUBRICATION INSTRUCTIONS — Continued 0128 00 ITEM NO. INTERVAL MAN- HOUR ITEM TO BE CHECKED OR SERVICED CREWMEMBER PROCEDURE EQUIPMENT NOT READY/ AVAILABLE IF: 11 Semi- Annual Idler and Road Wheel Hub Ribbed Bolts a.  Check for bent, broken or stripped idler/road wheel hub ribbed bolts. Any broken, bent and stripped bolts. 12 Semi- Annual Road Wheel Arm Mounting Hardware and Support Bumpers a.  Check and tighten loose road wheel arm mounting hardware to 130–140 lb-ft (176–190 N•m) torque. Check for missing or loose road wheel arm support bumpers. Any loose mounting hardware. 13 Semi- Annual Road Wheel Mounting Holes a.  Check for road wheel mounting holes extending beyond head of mounting nut. Any elongated holes that extend beyond mounting nuts. 14 Semi- Annual Shock Absorber a.  Check shock absorbers for leaks, dents, cracks, or loose bearings. Replace shock absorber that is bent, broken, cracked or dented enough to hinder operation. Replace worn bearing (WP 0379 00). Any cracked, broken, bent or missing shocks or dents that hinder shock operation. 0128 00-25