TM 9-2320-209-34-2-2 17-56. INTEGRAL DERRICK AND DERRICK SHEAVE ASSEMBLY REMOVAL, REPAIR, AND REPLACEMENT. TOOLS: No special tools required SUPPLIES: Artillery and automotive grease, type GAA, MIL-G-10924 PERSONNEL: TWO EQUIPMENT CONDITION: Truck parked on level ground, engine off, handbrake set. Preliminary Procedure. Chock wheels and lower outrigger arms. Refer to TM 9-2320-209-10. 17-708