Why does the Excavator have the Problem of Slow Motion?

As a Volvo Style Pin Wholesale, share with you. Common causes:

1. The oil cooler is clogged.

2. The speed of the oil cooling fan does not match.

3. The set pressure of the main release valve and the door release valve, and the pressure of the operation release valve is lower than the standard value.

4. The pressure of the main release valve is too high.

5. The hydraulic oil level is incorrect.

Volvo Bucket Teeth

The minimum maintenance procedures for Type 10 excavators:

1. First, is the hydraulic fluid level correct? correct.

2. Is the oil cooler blocked and the air circulation blocked? normal

3. Does the speed of the oil cooling fan reach the specified value? normal

4. Are the set pressures of the main release valve, door release valve and operation release valve lower than the standard value? The standard value is normal.

5. Is the pressure of the main release valve too high? too much stress.

Check the limit load pressure and speed on the tester display

Adjust the ΔP screw so that the ΔP pressure reaches 25 bar, rotate the speed adjustment lever to a very small limit, and wait for the speed to stabilize. Check whether the maximum load pressure and low speed are normal through the tester display. Press: teach to release 4-5S with switch. If the teaching light flashes quickly, it indicates that the engine is slow or the extreme load pressure is not adjusted. Check the speed adjustment lever potentiometer and the final load pressure until it is normal. If it flashes slowly, it is normal, and then quickly turn the speed adjustment lever to the limit position. After the speed stabilizes, press the teach switch for about 1 second. When the teaching lamp flashes quickly, the speed adjustment lever will be pressed. Reached the speed limit (1000-1150rpm); when the speed is stable, press the teaching switch for about 1 second, the indicator light will begin to flash slowly.

Slowly increase the speed until the teaching lamp starts to light up. At this time, the speed should be (1090-1400rpm). Press the teaching switch again. When the indicator light starts to flash slowly, please increase the speed slowly until the teaching light starts. Light for a long time, the speed should be (1470-1700rpm), press the teaching switch again. When the indicator light starts to flash slowly, please accelerate slowly until the teaching light starts to light up, then change the speed to (2200) ~ 2300rpm), then press it again, and then inform the switch. When the indicator starts to flash slowly, slowly increase the speed to (2270-2420rpm). At this time, the indicator light flashes, press the teaching switch, the indicator light turns on, and then turns off, the GLR indicator light on the right control panel turns off, indicating that the engine speed adjustment has been completed. Start the engine at 2160-2300 rpm.

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