Being able to operate the crane in the correct way will not only make the machinery and equipment prolong life, but also bring more profits to the owner and realize its value in excess. This is something that every buyer needs to master and understand.
Today's super practical manual, we have the privilege of consulting the exclusive experience of the senior engineer of Renesas Heavy Machinery. We should know the main points of the Renesas 25X5 crane dry goods once delivered! Customers and friends do not miss it!
Preparations
Before operation, the operator should assess the weight condition in advance, check the crane position, ground condition, level support, wire rope condition, fuel level, hydraulic oil level, power supply, etc., and ensure that the load and work area are clearly accessible , Ensure that crane operators and conductors communicate with each other.
Operation points
1, Outrigger operation
Before the lifting operation, the crane must be kept in a stable state and the wheels should be separated from the ground. The leg plate must be unfolded before the leg motion. Make sure that each leg plate except the fifth leg is in contact with the ground. The fifth leg only Can extend to the leg plate from the ground 5mm ~ 10mm, does not allow the fifth leg outstretched too long and cause the front legs loose from the force of the situation. When the leg out, it should first stretch out the left and right four legs, and then stretch Out of the fifth leg. When the leg is retracted, follow the legs out of reverse order. At the same time, you must always check whether the actual level of the spirit level is consistent with the plane of the frame. If not, adjust the nut under the level meter to match it. .
2, throttle operation
Throttle operation uses the electronic throttle to increase or decrease the engine speed. Do not step on the accelerator pedal excessively during operation to avoid danger and damage the engine. Smooth refueling and oil reduction can make the operation safe and smooth. It also extends the engine. Life, an effective way to reduce fuel consumption.
3, Luffing operation
The amplitude of the main boom should be changed between -2° and 80° during the luffing operation. The operation should be very smooth when the amplitude begins or ends. When lifting heavy objects, the sharp operation will bring a great impact on the crane. The operator shall strictly limit the maximum working range according to the provisions of the rated lifting capacity table. When the boom is fully extended with no load, the boom elevation angle shall not be less than 35°.
4, the main arm telescopic operation
During operation, if you find that the expansion and contraction is not synchronized or there is jitter, you should adjust it in time and the phenomenon will disappear before you can work. At the same time, the telescopic operation of the main arm is strictly prohibited to carry the telescopic, to avoid damage to the telescopic cylinder, retractable wire rope, serious will lead to overturning. The operator shall also strictly limit the maximum working range according to the provisions of the rated load-running table, and it is forbidden that the jib will fall and lift heavy objects.
5, lifting operation
First of all, we must be able to find the appropriate length of the main boom according to the lifting height and working range, and then find the rated lifting weight in the rated lifting weight table. When working with the auxiliary boom, check the rated lifting weight table according to the elevation angle of the auxiliary boom. Rated lifting weight. When the main boom is working, as the main boom is extended, the lifting height is increased and the length of the wire rope may not be enough. In this case, the wire rope magnification can be adjusted. After replacement, the height limit weight should be installed. hammer.
Note: The number of wire ropes on the lifting drum must not be less than 3 turns. When the hook rotates due to the wire rope rolling, the heavy object should be removed and the wire rope must be fully unclamped before lifting; Load on the ground, Avoid side loading. When lifting, lift the load from the ground 150mm~200mm and then stop it. After confirming that there is no safety hazard, you can continue to lift. Before the lift load has yet to leave the ground, you cannot use the arm and reach arm. Lift it off the ground; The spreader should have sufficient strength, and the lifting weight includes the weight of the hook and the spreader; The station should not be allowed on the load.
6, Rotary operation
Slewing operation should be carried out slowly and steadily. Rapid start-up, braking and reversing operations are strictly forbidden. Otherwise, the boom and heavy objects will be greatly shaken, which may easily cause crane damage and even damage. This may cause a safety accident. dangerous.
Attention: During the swing motion, the operator's visual field at the rear and both sides are greatly restricted and must be handled with care. Before the swing motion, the speaker must be honking to attract the attention of the surrounding people. It is determined that there are no people and other obstacles within the range of the crane radius R. , to ensure job safety.
7, compound action operation
Compound action means that two or more job actions work at the same time, which can improve work efficiency.
Note: Do not try to reach the maximum inclination angle of each operation handle, but also need to increase the accelerator pedal stepping force, and operate with caution to avoid accidents; At the same time should avoid rapid operation, is strictly prohibited with load expansion.
