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Blocqpwn Isomert&Welir ksMthAWt IM . Now WarwturgftcoiftndAft fom go hand brakes before working under a drill rig the proper quantity and quality of lubricants,hydraulic oils or a Release all pressure on the hydraulic systems,the drilling coolants 1 J 1 fluid system and the air pressure systems of the drill ng—when a Replace all caps,filler plugs, protective guards or panels,and +[ possible and appropriate—pnor to performing maintenance. In high pressure hose clamps and chains or cables that have been ,{ other words,reduce the drill rig and operating systems to a"zero removed for maintenance before returning the drill rig to service energy state" before performing maintenance Use extreme cau- tion when opening drain plugs and radiator caps and other pressurized plugs and caps t a Do not touch an engine or the exhaust system of an engine 7. Hand Tools II following its operation until the engine and exhaust system have Since there are almost an infinite number of hand tools that had adequate time to coal can be used on or around a drill rig and in repair shops,there are an equal number of instructions for proper use Use the tool for its intended purpose" is the most important rule The following suggestions apply to safe use of several hand tools that fre quently are used on and around drill rigs o When a tool becomes damaged,either repair it before using it again or get rid of it I When using a hammer,any kind of hammer for any purpose, wear safety glasses and require all others around you to wear , t safety glasses a When using any kind of chisel or punch, for any purpose, wear safety glasses and require all others around you to wear , safety glasses ;r a Keep all tools cleaned and stored appropriately when not in use WARNING � a Use wrenches — not pliers — on nuts a Use screwdrivers with blades that fit the screw MAINTENANCE a When using a wrench on a tight nut, first use some h IN PROGRESS penetrating oil and then use the largest wrench available that fits ,I DO NOT START the nut When possible pull on the wrench handle rather than push on it, apply force to the wrench with both hands when possible and with both feet firmly placed Always assume that 4 you may lose your footing,check the place that you may fall for a Never climb the mast(derrick)to do maintenance or make sharp objects repairs Lower mast,stop engine and deenergize rig before start- a Keep all pipe wrenches clean and iri good repair U"se a wire E ing maintenance or repair on mast brush frequently to clean the laws of pipe wrenches An accumu- a Never weld or cut on or near a fuel tank lation of dirt and grease can cause wrenches to slip a Do not use gasoline or other volatile or flammable liquids as a Never use pipe wrenches in place of a rod holding device 'F a cleaning agent on or around a drill rig a Replace hook and heel jaws when they become visibly worn E -13- -14 f