SPRINGS TM 9-2320-209-34-2-1 CHAPTER 16 GROUP MAINTENANCE SectionI. SCOPE 16-1. EQUIPMENT ITEMS COVERED. This chapter gives equipment maintenance procedures for the springs for which there are authorized correctivemaintenance tasks at the directand general support maintenance levels. 16-2. EQUIPMENT ITEMS NOT COVERED. Allequipment items for which corrective maintenance is authorized at the directand general support maintenance levelsare covered in thischapter. SectionII. SPRINGS 16-3. DRILLING AND TAPPING REAR SPRING SEAT FOR LUBRICATION. NOTE Drilland tap rear spring seatsat yearly or 6,000 mile maintenance or when spring or spring seatis being worked on. Do not take trucks away from normal dutiesto have holesdrilled. Lubricationshould be done about every 1,500 miles. TOOLS : No specialtoolsrequired SUPPLIES : Plug, pn 96906-20913-15 Lubricationfitting PERSONNEL: One EQUIPMENT CONDITION : Truck parked, engine off,handbrake set. 16-1