REMARKS: Purchased from Atwood, 1976. FormerlyChickamauga and lle D'' Amsterdam.WORK AREA: India.AmidcoAMAZONERIG DESIGN: IHC Gusto Engineering, HollandCONSTRUCTION: Aker Stord Yard, Norway, 1982.PERFORMANCE: Water depth--168''; Drilling depth--14,000''.QUARTERS: 68 persons.HULL: 164'' x 121'' x 19''.VARIABLE LOAD: 4,760 drillpressaccessories kips.HELIPORT: 33'' dia.STORAGE: Mud & Cmt Bulk--7,120 cf; LiquidMud--203 mt; Fuel--2,160 bbl; Water forDrilling--2,400 drillpressaccessories bbl; Potable Water--700 bbl.DRILLING EQUIPMENT: Drawworks--Ideco H900;

* Using the face of a clamp-type collar as drillpressaccessories a bearing surface in a rotary application. The saw slot can quickly abrade the surface rotating against it.Doug/Zero-Max: Improper tightening of multiple screws can cause bushing slippage. Axial movement of the bushing on the shaft when tightening can cause some alignment loss. Some connections feature a single tightening screw flint can be torqued if necessary for proper clamping force.Best practicesWhat are considered "best practices" when designing with locking devices?Carl/Ringfeder: Aside from the obvious design parameters, engineers should ask the following questions:* What are the application requirements of the device?* Is the locking device only used to simplify installation or is adjustment, removal, or maintenance necessary?

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