TM 9-2320-209-34-2-2 17-57. DERRICK SHEAVE ASSEMBLY REPAIR (TRUCK M764). TOOLS: No special tools required SUPPLIES: Graphite grease, VV-G-671 Solvent, dry cleaning, type II (SD-2), Fed. Spec P-D-680 PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. Preliminary Procedure. Remove derrick sheave assembly. Refer to para 17-56b, frame 3. 17-715