TM 9-2320-361-20 1-10. EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES (Contd) k. M764 Earth Boring and Polesetting Maintenance Truck, W/W. PURPOSE: M764 earth boring and polesetting maintenance truck uses an auger to bore holes and a derrick and rear winch to set and pull poles. A collapsible cable reel is used to lay wire and light cable. Hydraulically-operated outriggers are used to steady vehicle for earth boring and polesetting operations. M764 EARTH BORING AND POLESETTING MAINTENANCE TRUCK W/W 1-9