Whether the excavator is easy to drive with the forehand or backhand

Whether the excavator is easy to drive on the forehand or backhand should be based on personal habits. Usually the forehand and backhand are mainly reflected in the action of the left handle, the left and right lateral movement of the handle is rotation, and the vertical movement up and down is the national standard for the inner and outer movements of the forearm, which we call the forehand, and the opposite is the backhand!

The forehand and backhand can be achieved by changing the position of the pilot hose of the pilot handle, and it is OK to switch positions between A1A2 and B1B2.

Everyone knows that there is a forehand and backhand to operate an excavator, that is, the left handle controls the left and right sides of the fuselage to rotate as a forehand, and the front and back rotation as a backhand! So is it a forehand or a backhand first?

This thing has to start from the nineties, when China's hydraulic excavators were imported from Japan, because China did not have the ability to manufacture an excavator at that time, and the machines imported from Japan were all backhanded!

Therefore, the backhand was the first to appear, and then 00 years began to have its own excavators in China! In order to make it easier for novices to get started and easy to teach, the new excavators that are now leaving the factory are all forehanded!

Therefore, the old drivers with good skills for more than ten years are all backhanded, and now most of the young drivers after 90 and 95 are forehands, of course, it also depends on what region, such as the eastern coastal region.

For example, 70% of Shanghai's backhands are backhands, and there are more forehands in the western mountainous areas!

In addition, an experienced friend said: There are more backhands in the south and more forehands in the north! What exactly is a forehand and what is a backhand?

"Positive mobile phone" refers to the left and right rotation, and up and down rotation or forward and backward rotation for the "reverse mobile phone", the difference between the two modes of operation is only the difference in the operation of the left hand handle of the excavator, and the way of the right hand handle is unchanged.

I think it's easy to open a forehand because it's a forehand that I drive.

It's the same along the way, I still feel that the forehand is easy to open, not to mention that this pilot can be changed.

The steps for adjusting the forehand and backhand of the excavator are as follows:

1. If there is an excavator with a toggle switch, it is very easy to do. Just flip the switch for a while, taking care to turn off the engine first, and then follow the instructions to switch. Of course, not every excavator has such a switch, but a second mobile phone imported from Japan.

There are two types of switches. One is that there are four modes that can be switched, two of which are the forward and backward rotation and left and right rotation I mentioned, and the other two are full swapping of left and right hands. These switches are typically installed behind the cab on a side door or next to a rotating motor.

2. Turn the handle and do it yourself. Disassemble the left operating handle and four screws, rotate 90 ° together with the warhead and the tubing before installation. When the forward and backward rotation is changed to left and right rotation, rotate 90° counterclockwise.

When the left-right rotation is changed to a forward-backward rotation, rotate 90° clockwise. It's just troublesome, the space is small when turning, and the tubing is rigid, so the method of turning the handle is not very convenient.

3. Change the pipeline. This method is very common. Generally, the oil pipe connection block in the rear side door of the cab is replaced.

At one end of these small tubing is a handle warhead, and at the other end is a multi-way valve. This is the only way to know the action of each tubing control device in order to change accordingly. And the location of each brand of excavator is different.

Generally speaking, only after-sales service personnel know this best, but they usually charge a fee to change the motivation. If you need to replace frequently, please quietly remember when the after-sales personnel replace it for you, and then you can replace it yourself.

There is also a way to understand the action of tubing control by yourself, the specific operation is as follows: first, insert the bucket of the excavator into the soil, and do the front and back and left and right gripping actions of the left handle. When holding the machine, observe carefully, or touch it with your hands, to see which oil pipe is shaking, this is the corresponding action, and then replace it accordingly.

To adjust the forehand and backhand of the excavator, you only need to adjust the four pipelines of the lower part of the left and right operating handles to the main control valve in parallel.

As long as the lower part of the left and right operating handle corresponds to the four pipes in parallel, that is, the four pipes that were originally connected to the left-hand operating handle are connected to the lower part of the right-hand operating handle, and the lower pilot pipe on the right is connected to the lower part of the left handle.

The materials excavated by the excavator are mainly soil, coal, sediment, and soil and rock after pre-loosening. Judging from the development of construction machinery in recent years, the development of excavators is relatively fast, and excavators have become one of the most important construction machinery in engineering construction. The three most important parameters of the excavator:

Operating weight (mass), engine power and bucket capacity. The excavator should check the environmental safety situation before starting.

Clear the obstacles on the road, unrelated people leave the excavator, and then lift the bucket. After the preparation is over, the driver should first honk the horn and then operate the excavator to start. When the excavator is reversing, pay attention to the space behind the car, pay attention to the blind spot, and ask a special person to command to assist if necessary.

If the stem starts in the low speed range of the excavator, the engine speed will suddenly increase, and the driver should be careful to operate the bar.

Excavator forehand for backhand:

First of all, remove your left lever, the control of the tubing can not be confused, to make a good mark, when you remove the left lever there are two tubing plugs with the letters T and P, these two tubing should not be removed. Before you do left. Turn right and come.

When the outrigger is returned, the corresponding oil pipe and oil hole are marked. Now it's up to you how to change the oil pipe. Swap the positions of the (right) slewing tubing for the forehand and the tubing for the (retracting) outrigger and tighten them.

Now there are only two tubes left, and after swapping their positions, it is now a switch between the sending forearm and the left turn, the closing arm and the right swing, and the T and P ports are not moving, so that the forehand becomes a backhand.

Switch your backhand to your forehand, in a similar way.

It is only necessary to adjust the four pipes from the lower part of the left and right operating handles to the main control valve in parallel.

The left-hand operating handle of the excavator with forehand operating handle mainly controls the rotation and stick action, and there are four pilot pipelines in the lower part to go to the corresponding main reversing valve core to realize the main valve reversing; The right-hand operating handle mainly controls the action of the boom and bucket, and there are also four pilot pipelines in the lower part to the corresponding main reversing valve core to realize the main valve reversal. Therefore, as long as the lower part of the left and right operating handle corresponds to the four pipes in parallel, that is, the four pipes that were originally connected to the left-hand operating handle are connected to the lower part of the right-hand operating handle, and the lower pilot pipe on the right is connected to the lower part of the left handle.

Rotate the handle, remove the left operating handle, remove the four screws, and rotate 90° together with the bullet and the oil hose before reinstalling. If you change the forward and backward rotation to the left and right rotation, you will rotate 90° counterclockwise, and if you change the left and right rotation to rotate backward and backward, you will rotate 90° clockwise. Determine the action of each oil pipe control, and then adjust the pilot oil pipe under the handle operation valve, and the switch between the front and back hands can be realized.

Summary. Pro, the Japanese original machine adjusts the excavator to operate the forehand and backhand operation method: the right handle controls the stick before and after, the left handle controls the swing of the forehand, the left handle controls the swing of the stick, and the right handle controls the swing of the backhand.

The domestic production of adjusting the excavator to operate the forehand and backhand operation method is that the left handle controls the rotation to the left or right, the excavator with the right handle controlling the stick before and after the stick is the forehand, the right handle controls the rotation to the left or right, and the excavator with the left handle controlling the stick before and after the stick is the forehand.

Excavator operation forehand, backhand? How do you adjust it?

Pro, the Japanese original machine adjusts the excavator to operate the forehand and backhand operation method: the right handle controls the stick before and after, the left handle controls the swing of the forehand, the left handle controls the front and rear control stick to grip the leakage, and the right section of the imitation handle controls the swing of the backhand. The domestic production of adjusting the excavator to operate the forehand and backhand operation method is that the left handle controls the rotation to the left or right, the excavator with the right handle controlling the stick before and after the right handle is the forehand, the right handle is controlled to the left or to the right of the search group, and the excavator with the left handle controlling the stick before and after the left handle is the forehand.

However, there is a switch controller, and you only need to adjust one button on the Tong Yi handle. You first need to turn on the power of the excavator, and then rotate the front and back wheel hand button on the control panel to the "positive" position of the bright front, so that the excavator can run normally.

At the same time, the old man also has a switching handle, which is four modes that can be switched, of which two sedan chair gods are the front and back rotation and left and right rotation I mentioned, and the other two are complete exchange of left and right hands. These switches are usually installed behind the cab next to the side door or rotary motor.

Excavator operation forehand, backhand? How do you adjust it?

Hello, according to investigation, generally speaking, the so-called positive mobile phone and anti-mobile phone refers to the left-handed operation mode of the chain, the positive mobile phone refers to the left-handed operating lever before and after the extension arm, left and right rotation, on the contrary, the mobile phone operating lever is left and right rotation, left and right is the extension arm. The Japanese original machine adjusts the excavator to operate the forehand and backhand operation method, the right handle controls the bucket Laodong Sun rod before and after, the left handle controls the swing is the forehand, the left handle controls the stick before and after, and the right handle controls the swing is the backhand. The domestic production of adjusting the excavator to operate the forehand and backhand operation method is that the left handle controls the rotation to the left or right, the excavator with the right handle controlling the stick before and after the stick is the forehand, the right handle controls the rotation to the left or right, and the excavator with the left handle controlling the pure stick before and after the left handle is the forehand.

The excavator backhand forehand operation mode can be changed. Several ways to change the mode of operation are as follows:

First, if the excavator has a toggle switch, it is very easy to do. Just turn the switch, here is a special reminder, you should turn off the fire before operation, and then switch according to the manual. Of course, the transfer switch is not available in every excavator, and some second-hand phones imported from Japan have, and the transfer switch is divided into two categories.

One is that you can switch between four modes, two of which are the forward and backward rotation and left and right rotation I mentioned, and the other two are completely interchangeable left and right hands. These switches are typically located in the side door behind the cab or next to the rotary motor. The other type is that only two modes of operation can be switched, and only two types of rotation can be switched: forward and backward rotation and left and right rotation.

This toggle switch is usually installed under the seat in the cab. If you need to switch frequently, you can also install a toggle switch by yourself.

Second, rotate the handle, do it yourself, remove the left operating handle, the four screws, and rotate 90° together with the bullet and the oil hose before installing it. If you change the forward and backward rotation to the left and right rotation, you will rotate 90° counterclockwise, and if you change the left and right rotation to rotate backward and backward, you will rotate 90° clockwise. It's just that this is more troublesome, and the space is narrow when rotating, and the oil pipes are hard, so the method of rotating the handle is not very convenient.

Third, it is to change the pipeline, this method is more common, generally behind the cab, at the oil pipe connection block in the side door. These small tubing come from the handle bullet at one end and from the multi-way valve at the other. It's just that this method needs to know the action of each tubing control in order to correspond to the change.

And the location of each brand of excavator is different. Generally, only after-sales service personnel know these best, but they are generally charged for changing. If you need to change it often, then quietly remember it when the after-sales staff changes it for you, and you can change it yourself in the future.

Fourth, you can find out the action of tubing control by yourself, which is operated like this: first insert the bucket of the excavator into the soil, and the left hand handle will do the action of holding the machine before and after, and at the same time, observe carefully, you can also touch it with your hands to see which tubing has shaking, which is the corresponding action, and then you can change it according to this.

Fifth, I don't know which philosopher once said, "If you want to change the world, you must first change yourself" If you can't change the operation mode of the excavator, then change your driving habits. It may be a little uncomfortable at first, but it will take about three to five days to get around.

The upper and lower handles are the backhand that controls the rotation, and the left and right control of the rotation is the forehand, generally there are more backhand cars in Tianjin, and I drive the backhand car, in fact, the forehand backhand is used to it, which is the same.

This can be adjusted,,I used to drive a forehand car,Now driving this Volvo is a backhand,I'm not used to adjusting it to a forehand,The left handle of the anti-mobile phone is rotated up and down,The left and right of the mobile phone is rotated,

The forehand is the left handle that rotates left and right, and the backhand is the left handle that rotates up and down. That's something you can get used to.