Excavators as one of the most common equipment in the construction machinery, is widely used in mining, water conservancy, municipal, highway and other environmentally hostile workplace, these occasions are usually hidden a lot of large and small safety hazards. Excavator operation safety is very important, the operator should follow the relevant operating procedures and safety requirements, reasonable planning operations, to protect their own safety and the safety of the surrounding personnel. This article will introduce you to the excavator operation matters needing attention.
1. Inspect the machine before operation, make sure everything is complete and intact, there are no obstacles and other people within the range of movement of the big arm and bucket, and sound the horn to indicate the alarm before operation.
2. When digging, the soil should not be eaten too deep each time, and the bucket should not be lifted too violently, so as not to damage the machinery or cause overturning accidents. When the bucket falls, pay attention not to impact the track and frame.
3. The person who works with the excavator to clear the bottom, level the ground and repair the slope must work outside the rotary radius of the excavator. If you have to work within the rotary radius of the excavator, the excavator must stop the rotary and brake the rotary mechanism before working. At the same time, the machine on and off the machine to take care of each other, close co-operation, to ensure safety.
4. Within the working area of the excavator, vehicles and pedestrians are not allowed to stay. When unloading materials into the dump truck, wait until the dump truck stops and the driver leaves the cab before turning the bucket and unloading materials into the truck. When the excavator is rotating, try to avoid the bucket passing over the top of the cab. When unloading, the bucket should be lowered as much as possible, but also pay attention to not collide with any part of the dump truck.
5. When the excavator rotates, it should rotate smoothly with the rotary clutch and the brake of rotary mechanism, and it is forbidden to rotate sharply and brake in emergency.
6. Bucket is not off the ground before, shall not do slewing, walking and other actions. When the bucket is fully loaded and hanging in the air, it is not allowed to raise and lower the arm and walk.
7. When the crawler excavator is moving, the arm should be placed in the forward direction of walking, and the height of the bucket from the ground is not more than 1 meter. And brake the slewing mechanism.
8. When the excavator goes uphill, the driving wheel should be at the back and the arm should be on top; when the excavator goes downhill, the driving wheel should be in front and the arm should be at the back. The uphill and downhill gradient shall not exceed 20°. When going downhill, the excavator should be driven slowly, and no speed change and no idle gear skidding are allowed on the way. When the excavator passes through the track, soft soil and clay road surface, it should lay the mat board.
9. When digging bulk soil on high working surface, the larger stones and other debris in the working surface should be removed to avoid collapsing and causing accidents. If the soil is dug into a suspended state and can not be naturally collapsed, it is necessary to deal with manually, and it is not allowed to use the bucket to smash it down or press it down, so as not to cause accidents.
10. Excavator in the work, it is strictly prohibited to repair, maintenance, fastening and other work. If strange noise, odour, high temperature rise, etc. occurs during the work, it should be stopped immediately for inspection.
11. The top of the boom pulley maintenance, overhaul, lubrication, replacement, the boom should be dropped to the ground.