Because of this, the phenomenon of digging pit cold trucks is normal, and the hot car digging pit unilateral walking car phenomenon.
the reason:
1, digging machine solenoid valve failure. 2, pit pump hydraulic pump failure. (The pump that controls the digging machine is worn out. It may be pump head. Swashplate failure.)
3, walking pilot pressure is wrong.
4, the failure of the walking motor.
5, digging machine center rotary joint oil seal damage.
6. The rake on one side of the pit digging machine was stuck. '
Failure measures:
1: First check the dig: Pilot walking pilot pressure value.
2: Check digging: if the pump pressure value before and after the pit machine is the same, check the center rotary joint of the digging machine unilaterally. Check whether there is any abnormal sound in the traveling motor and finally check the digging machine. The overflow pressure value.
the reason:
1, digging machine solenoid valve failure. 2, pit pump hydraulic pump failure. (The pump that controls the digging machine is worn out. It may be pump head. Swashplate failure.)
3, walking pilot pressure is wrong.
4, the failure of the walking motor.
5, digging machine center rotary joint oil seal damage.
6. The rake on one side of the pit digging machine was stuck. '
Failure measures:
1: First check the dig: Pilot walking pilot pressure value.
2: Check digging: if the pump pressure value before and after the pit machine is the same, check the center rotary joint of the digging machine unilaterally. Check whether there is any abnormal sound in the traveling motor and finally check the digging machine. The overflow pressure value.
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