TM 9-2320-361-10 3-17. REAR WINCH SHEARPIN REPLACEMENT a. Removal (Truck, M756A2). (1) Park vehicle with engine off and parking brake applied. (2) Remove cotter pin (2) and pry out shearpin (1) head. Pull shearpin (1) from sprocket hub (4). Discard cotter pin (2) and shearpin (1). (3) If shearpin (1) is broken, use pliers to pull broken ends from sprocket hub (4). b. Installation (Truck, M756A2). TA 51839 WARNING Be sure the rear winch shearpin is aluminum. Do not substitute any other type metal pin for the shearpin, or injury or death to personnel may result. (1) Coat new shearpin (1) with grease (use grease, GAA, Appendix D, Item 7), and insert in hole in sprocket hub (4). (2) Rotate sprocket (3) until shearpin (1) slides in all the way. (3) Install new cotter pin (2) in hole in shearpin (1) and bend back ends of pin (2). 3-30