How to Adjust the Speed of the Excavator Out of Control?

One of the common problems in the maintenance of small excavators in the construction field is that the initiator is out of control. In the past, the maintenance of excavators is getting faster and faster, which may cause serious accidents, such as damage to diesel cylinders and shafts. Diesel engines usually only appear when the load suddenly begins or when the load suddenly disappears or is released and the vehicle speed is not present. Under load, there is no speed problem. Let Bucket Teeth Manufacturer analyze the problem of out-of-control excavator speed.

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1. The inertia oil bath air filter oil contains too much oil. It was sucked into the cylinder and extinguished. This is equivalent to increasing the fuel supply, which will also accelerate and cause speed.

2. Due to misalignment or fuel plug, the plunger of the fuel radiation pump may rotate and the speed adjustment frame may be lost. In particular, the multi-cylinder oil pump is in a load-constrained state, and the fuel supply cannot be modified to cause flight conditions.

3. The governor of the single-cylinder diesel engine single-injection pump drives the sleeve blockage, resulting in poor speed control and poor flight.

4. Some oil inlet holes and oil return holes on the plunger sleeve of the fuel injection pump are on the same plane. If the plunger sleeve screw is too long to block the oil return hole, the oil return will be poor and oil supply will occur. Surge can also cause acceleration.

5. Since the fuel pump regulator is blocked in the fuel supply position, or the rack and governor levers fall out of control, the car will be in flight.

6. If the casing of the governor is excessively smooth, the speed cannot be opened and the speed adjustment will be affected. The friction clutch of the governor slips, and the quick limit screw and safe installation of the governor appear. Looseness, rapid pulling or infarction, damage to the speed spring, damage to the thrust bearing or governor bearing may cause the governor to malfunction and slow down.

If the mini excavator loses control, it immediately suspends its operation, which may have serious consequences. We must learn to make reasonable adjustments to reduce the damage of the excavator.

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