The DSM / Mayhew 1400

Maximum Capacities

This drill is recommended for operation with a maximum drill string static load (including yoke, swivel, kelly, drill pipe, collars, etc.) of 20,000 lb. (9,072 kg) on 3 lines. When operating with static load near maximum, avoid inducing dynamic load that may cause the total load to exceed maximum.

Operation exceeding this limit may result in equipment overload and possible collapse or falling components that may be hazardous to personnel.