1) when carrying out maintenance work, hang the "no operation" warning sign on the joystick. If necessary, hang warning signs around the machine.
2) only suitable tools can be used, and the use of damaged, defective or substitute tools can cause injury.
3) keep the machine clean and tidy. Leakage of hydraulic oil, lubricating oil, butter, tools and sundries can cause accidents. Therefore, keep the machine clean and tidy. If water enters the electrical system, the machine can not start or work, so it is forbidden to clean sensors, inserts or cabs with water. Inside.
4) the engine should be closed before the maintenance and maintenance. If the engine must be started, the safety lock rod should be placed in the lock position and the maintenance operation is completed by two people, one person is repaired, the other is sitting on the driver's chair so that the engine can be closed immediately when necessary. The maintenance personnel should be particularly careful not to touch or be involved in the parts involved in the movement.
5) we should add diesel oil, hydraulic oil and lubricating oil in a well ventilated place, remove the spatter oil immediately, tighten the fuel cover, and prohibit the use of diesel to clean the parts or machines.
6) when the bottom of the machine is checked, the angle of the arm and the bucket should be kept at 90~110 degrees, and then the bucket is lowered so that the bottom is facing the machine and the safety support is used to support the machine.
7) under normal circumstances, every hydraulic tubing has high pressure. Before releasing the internal pressure, do not gas, oil or maintenance or overhaul.
8) when the engine has just stopped, the engine coolant and the oil in all parts and pipes are still in high temperature and banditry. Therefore, it must be repaired and maintained after the temperature is reduced.
9) be careful when adjusting the tightness of the crawler, and there is a high pressure grease in the tension cylinder. If the screw plug and the butter mouth are loose, the high pressure oil will be sprayed out, causing damage or casualties. Therefore, when turning the loose oil plug against clockwise, it must not be more than one. Oil mouth.
10) when checking diesel oil, lubricating oil, hydraulic oil, coolant or battery electrolyte at night, use explosion-proof lamp, otherwise there will be danger of explosion.
11) when repairing the electrical system or carrying out welding work, the negative pole terminal pole of the battery should be removed first to cut off the current.
12) prohibit the disorderly dumping of oil, diesel, coolant, hydraulic oil and solvent to the sewers, rivers, or the ground, and prohibit littering of filter cartridges, batteries or other harmful substances. Harmful substances should be stored in the container and comply with the relevant rules.
13) the key parts should be replaced regularly, such as the fuel pipe in the fuel system, the oil back hose and the fuel pipe cover, and the high pressure hose in the hydraulic system. These parts should replace the new parts regularly, whether or not they have failed. The rubber hose contains combustible material. If the pipe is aging, fatigue or bruising, it will burst under high pressure, so it should be regular. Change.
14) if you need to add water to the tank, shut down the engine and cool the engine and radiator. Before opening the lid, the lid should be loosened slowly to relieve the pressure.
15) before the maintenance and repair of the machine is carried out, all movable devices should be lowered to the ground or the lowest position.
16) when a fire occurs, switch the key switch to the stop position to stop the engine. Fire extinguishers can be extinguished and the fire fighters should be immediately notified.
17) electrical system short circuit is very easy to cause fire, it is necessary to clean and fasten all electrical connecting parts. Before working, check whether the cable or wire is loose, twisted, hard or cracked, check whether the terminal cover is lost or damaged, and make up for new. For the cable and wire that can't be used, it should be replaced in time. It has been burnt out. The fuse must be replaced with the same capacity fuse instead of the larger capacity fuse, and the copper wire can not be replaced.
18) keep away from rotating parts. Be careful not to let anything get involved.
19) before starting the machine, check the belt, ring and the installed components thoroughly. If any part is worn or damaged, it should be replaced before operation. When the machine works, the operator will always sit and fasten the seat belt firmly.
20) a shovel, a hydraulic hammer or a shovel, which is unloaded from a machine, should be placed in a place that will not be turned over, to keep the children and other people from playing away from the storage area.
