Now do the electric overhead
Steel crane s procedures described below:
1 The operator must go through specialized technical training of qualified and holds the device operating permit before operation. The operator must strictly comply with the relevant safety regulations and the shift system.
(2) Workers should be strictly in accordance with the preceding provisions of lubricating grease, oil and keep fit, oil flow, oil standard (windows) eye-catching, oil cup clean.
3 Check the transmission, steering mechanism, the size of car walking wheel, reel, hook, pulley, pin, wire rope for wear and damage to the office and check the track and within walking without obstacles.
4 Check the signal bell, lights and lighting equipment is perfect, lifting height and walking test limit switches, as well as the brake action is sensitive and reliable.
5 when the hook in the lower position, the rope should be left on the roll at least twice or more. Wear and corrosion resistance over the surface of the wire rope diameter of more than 40% of one or a twist to break away from the root of the number of broken wires within more than 5% of cis-wound wire,overhead bridge crane steel wire around each of 10%, should be discontinued.
6 job, just listen to one person commanding the driver, the driver and conductor should be obvious hand signals. Before lifting the driver should be ringing signal echoed into the crane in case of danger or failure, regardless of the signal from the bottom of who should be immediately stopped.
7 The first hook should first try
jib crane , bridge crane will be removed from the ground 200 mm weight when doing brake test and confirm before lifting a good job. The process of moving, should make lifting weights all the way objects move above 0.5 m or more.
8 crane lift, start, stop should be slow to prohibit the operation of a sudden change of direction. When the big, trolley close to the end, the application of the slowest speed, prohibit the use of stopper as a means to stop running.
9 In case of a sudden power outage, a large voltage drop or equipment failure, the driver should immediately move to zero for all controllers, and pull the power switch, if the weight is hanging position should take measures to slow landing weight .
10 prohibits heavy or hanging pull stayed buried in the sand and other objects of the workpiece.
11 Two electric overhead traveling cranes on the same track must be more than 2 meters apart. To use a
eot crane to promote another crane, first loosen the brake is pushed crane walking.
12 wire rope should be regularly checked and oiled once every 15 days, oiled rope on the front of the grease should be cleaned debris, the oil is heated to about 60 ℃, in order to facilitate oil seep strand gap.
13 The workers should hook after rising, the car stops at the end of the cab and check, cleaning equipment, do routine maintenance work for each of the operating handle (switch) is placed in neutral (zero), cut off the power switch, locked cab, reach neat, clean and safe.
Overhead crane is Hengjia in workshops, warehouses and empty field for material lifting material lifting equipment. Because of its ends located in the tall concrete pillars or metal bracket, shaped like a bridge. Overhead crane overhead bridge along the laying of tracks on both sides longitudinally running, you can take advantage of the space under the bridge lifting material from ground equipment obstacles. It is the most widely used, the largest number of a lifting machinery.
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