TM 9-2320-361-34 15-35. EARTH BORING MACHINE REPLACEMENT (Contd) NOTE For proper balance of earth boring machine, boring case must be in vertical position during removal and installation. a. Removal 1. Remove four locknuts (6), screws (8), and shaft flange (5) from clutch drive flange (7). Discard locknuts (6). 2. Install chain on earth boring machine (1) and attach chain to lifting device. Apply tension to chain. 3. Remove four screws (4) and lockwashers (3) from earth boring machine (1) and body (2). Discard lockwashers (3). WARNING ● All personnel must stand clear during lifting operations. A swinging or shifting load may cause injury to personnel. ● Earth boring machine is heavy. Ensure lifting capacity is greater than weight of earth boring machine. Failure to do so may result in damage to equipment or injury to personnel. NOTE Assistant will help with lifting operations. 4. Remove earth boring machine (1) from body (2) and place on wooden supports. 5. Remove lifting device and chain from earth boring machine (1). - 15-123