The common problems and coping techniques in excavator operation are as follows:
1、 In terms of operational performance
1. Unable to excavate
phenomenon
I feel that my strength is insufficient during excavation, and I am unable to achieve the expected depth or volume of excavation.
Reasons and coping techniques
It may be a malfunction of the oil pump. Check if the pressure of the oil pump is normal. If the pressure is insufficient, repair or replace the oil pump. It may also be a hydraulic system leak. Check for oil stains on the oil pipes, joints, and other parts, and promptly repair and replenish hydraulic oil if any leaks are found. In addition, severe wear and tear of the digging bucket can also lead to weak digging, so it is necessary to replace the bucket in a timely manner.
2. Difficulty in rotation
phenomenon
The excavator rotates slowly or cannot rotate at all.
Reasons and coping techniques
Rotary motor malfunction is one of the common causes. Check if the working pressure and flow rate of the rotary motor are normal. If there are any abnormalities, repair or replace them. Failure of the rotary reducer can also cause difficulty in rotation. Check the wear of the gears inside the reducer and replace it if necessary. Meanwhile, the lack of lubrication in the slewing bearings can also lead to this problem, and it is necessary to regularly add lubricating oil.
2、 Safety related aspects
1. Brake failure
phenomenon
During the operation, the braking device cannot work properly and cannot effectively stop the movement of the excavator.
Reasons and coping techniques
Brake oil pipe rupture or loose joints can cause brake failure. Check the brake oil pipe, repair the broken part, and tighten the joint. Excessive wear of brake pads can also cause brake failure and require replacement of brake pads. In addition, insufficient hydraulic oil in the braking system can also affect the braking effect. It is necessary to replenish hydraulic oil and check for leaks in the oil circuit.
2. Blind spot problem
phenomenon
When operating excavators, there may be blind spots in the field of view due to factors such as the body structure, which can easily lead to safety accidents.
coping skills
Install auxiliary observation devices such as rearview cameras, wide-angle rearview mirrors, etc. to expand the field of view. Before starting the homework, it is necessary to carefully survey the work site, understand the surrounding environment, and try to avoid high-risk operations in blind spots.
3、 Other aspects
1. Engine malfunction
phenomenon
Difficulty starting the engine, emitting black smoke, insufficient power, etc.
Reasons and coping techniques
Difficulties in starting may be due to fuel system malfunctions, such as clogged fuel injectors, clogged fuel filters, etc., which require cleaning or replacement of relevant components. Black smoke may be caused by clogged air filters or poor atomization of fuel injectors. Clean the air filter and check the working condition of the fuel injectors. Insufficient power may be due to internal wear and tear of the engine, requiring further maintenance.
2. Issue with track tightness
phenomenon
If the track is too loose, it is easy to fall off, and if it is too tight, it will increase the walking resistance and affect the normal operation of the excavator.
coping skills
Regularly check the tightness of the track and adjust it according to the requirements of the equipment manual. When adjusting, pay attention to the consistency of the tightness of the left and right tracks.
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