TM 9-2320-361-34 15-35. EARTH BORING MACHINE REPLACEMENT (Contd) b. Installation 1. Install chain on earth boring machine (1) and attach lifting device to chain. WARNING All personnel must stand clear during lifting operations. A snapped chain, shifiing or swinging load may cause injury to personnel. NOTE Assistant will help with lifting operations. 2. Install earth boring machine (1) on body (2) with four screws (4) and new lockwashers (3). 3. Remove lifting device and chain from earth boring machine (1). 4. Install shaft flange (5) on clutch drive flange (7) with four screws (8) and new locknuts (6). 15-124